Mini Projectors – The smallest projectors

Август 28th, 2015 by homesecuirtycameras
We live in a world where technology and science are constantly changing around us. We are more mobile as a society and, day by day, we are becoming more advanced and efficient in the way we conduct business. We are always looking for new ways to make ourselves a bit more mobile and efficient though. When you go into a business meeting, one of the main focal points may be the images coming from a projector. Compact Projector are becoming more and more advanced. You can store images and video files directly to these machines and play them right there at the meeting. Whether being used for business or entertainment, projectors are becoming more computer-like as the days go by. As often as we are all on the go, the thought of mobility comes to mind. You can’t just take your company’s projector home if you want to load something onto it. This is where the mini projector comes in.


The pico projectors are made using DLP – Digital Light Processing technology, which is becoming very popular in the board room projector category as well. It is actually a projection technology like LCD, but uses a digital micro-mirror chip (instead of the LCD crystals) to project images. The illumination for the pico projectors is from a LED/Laser source.


These pico projectors have a minimum/maximum screen size of 6″ to 60″ (Diagonally measured). The brightness is around 10 to 100 Lumens (depending on the projector model) and it has

a Li-Ion rechargeable battery. The battery can be recharged through the USB interface (like cellphones) and the batteries can go on up to two hours without having to be charged again. The power consumption of the batteries are around 6W.

The screen size can go from 6″ to 60″ Diagonal. The Android mini projector has a contrast ratio of about 1000:1, and can project images on white paper, screens and walls (white screens are recommended for bs around 110 to 150 grams (depending on the make and the model). It has got an inbuilt 0.5 Watt speaker (RMS) and tripod adopter is included in some models. The native screen resolution supported is 480 x 320 pixels.

They have a 18 pin universal port (for connecting the SVGA source from laptops – through a converter), component video ports (to connect with DVD player or gaming devices) and mini-USB port to connect with PC/Laptop.

Advantages of Pico Projectors:

The pico projectors are the smallest and lightest projectors that we have seen till now! They can connect to an amazing number of devices like PC, Laptops, DVD Players, Gaming stations, Cell phones etc. They are even integrated in to certain cell phones. Having a stable and trusted Li-Ion battery is comfortable. The (max) screen size of 60″ (Diagonal) is quite attractive. The DLP technology is also quite mature and has been accepted by the users.

The contrast ratio of 1000:1 is quite comparable with the business class projectors. The lamp life of 20,000 hours (LED source) is quite a surprise for people used to the 2000 hour lamp life of the business category projectors. The lamp warranty though, is not explicitly mentioned by the vendors. The USB rechargeable battery is very convenient for travelling people. The low power consumption (6W) is also a plus.

The current prices of around 400 USD looks attractive, but this is sure to come down if the pico projectors are manufactured on a large scale. The 0.5W (RMS) built-in speakers is a plus for its size, when compared to the normal 1 W speakers of the business category projectors which are quite bulky.

Disadvantages of Pico Projectors:

One of the main disadvantages of the pico projectors are their brightness (10-100 Lumens), considering that business projectors start in the range of 1000/1200 Lumens. The room where the images are projected needs to be quite dark to be able to see the images with clarity. The battery life of 2 hours is also a turn-off for both the business category as well as the home segment as the presentations and movies can easily go longer than that. But if an AC source is nearby, it could be useful.

While they can project images up to screen size of 60″ diagonal, the projector needs to be kept at quite a distance to achieve that screen size and the brightness and clarity reduces with increasing screen sizes. If white screens/boards are not available for projection, coloured walls or papers may not display the images accurately.

The native resolution of the projectors are another area of concern – 480 x 320 pixels (currently). The laptop’s native resolution is 1200 x 768 (XGA) and even a PC has a native resolution of at least 800 x 600 (SVGA). So, when such a high resolution source is projected through a low resolution projector, the finer details (like the characters in an spread sheet) may not be clearly visible.

Technology is quickly moving along with the needs of a more mobile society. I feel it’s only a matter of time before the pico projector takes over in the realm of projectors. You might as well start using them now to put yourself a bit ahead of the crowd.

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IP Surveillance Cameras: All You Need Know

Август 27th, 2015 by homesecuirtycameras

IP video cameras broadcast their video as a digital stream over an IP network. Like an analog system, video is recorded on hard drives, but since the video is an IP stream straight from security monitors and cameras, there is more flexibility as to how and where that video is recorded. The DVR is replaced with an NVR (network video recorder), which in some cases is just software since it doesn’t need to convert analog to digital. Video footage can then be stored on new or existing network RAID drives as directed by the NVR software.

How do IP Surveillance Cameras Work?

There are essentially two types of IP camera operating systems; centralized and decentralized. Centralized IP systems require an NVR (network video recorder). The NVR is a program that records video in a digital format to a hard drive, flash drive, or other storage device. Decentralized IP camera systems do not require an NVR because each of security monitors and cameras has built-in recording capability and can record directly onto digital storage media. All data recorded by the IP camera can be accessed from anywhere using Internet access.

Analog, closed circuit cameras are unable to send and receive data. As opposed to transmitting video over a video cable to a traditional monitor or television, audio and video are transmitted via a data connection. IP surveillance cameras have the capability to do all of the same things as a closed circuit system with analog video, with the added benefit of remote viewing. Because these systems can be as complex or as simple as needed for security or surveillance purposes, they are just as effective in a private residence as they would be in a large office building.

Why IP Surveillance Cameras?

There are a number of benefits to using IP surveillance over other closed circuit systems. In addition to the digital nature of the recording media, the cameras offer practical advantages over the alternative closed circuit security systems. These benefits are further detailed next.

* Easy plug and play

* Higher Image Quality and adjustable frame rate

* Digital recording does not decrease recording quality over time even with playback

* Multiple camera operation and addition from one remote location

* High compression offers easy storage and transfer to numerous forms of media

* Instantly transmits images to any location in the world through remote or shared viewing via the web

* Easily encrypt digital images for security. Add updates and extras with simple software upgrades

Types of IP Surveillance Cameras

① Decentralized vs. Centralized IP Cameras

Centralized IP cameras are a network of linked security cameras; however, they are only the eyes of the security system because a central video recorder that all the cameras link to handles video recording. Central storage ensures that the security footage remains safe even if the camera is damaged or stolen.

On the other hand, decentralized IP cameras are stand-alone recording devices. Each records the video stream in a local storage medium, such as a hard drive or thumb drive. Decentralized storage ensures that there is very little chance of losing all surveillance and security footage at once.

② Wired vs. Wireless IP Cameras

Wired IP cameras are linked to local computer networks or the Internet via Ethernet cables. This allows the cameras to use maximal network bandwidth and ensures a steady and stable connection. Wireless home cameras are connected to the network by Wi-Fi or Bluetooth. Because they are wireless, these IP cameras can be used to survey a wider area than wired IP cameras, and they are easier to install, but the connection is not as reliable.

③ Fixed vs. PTZ IP Cameras

Fixed IP cameras are network cameras placed in fixed positions. Therefore, they have fixed viewing directions and angles. A fixed network camera is, therefore, used to survey the same area of a property without ever panning away. Although they are fixed, these cameras may also be equipped with different lenses to enhance their functions.

On the other hand, a PTZ IP camera can pan, tilt, and zoom using either manual or automatic controls. This wide range of motion allows one camera to conduct surveillance from different directions and multiple angles, which makes it ideal for continuously tracking an object of interest and zooming to investigate.

④ Day and Night IP Cameras

This type of IP camera is used to provide all-day surveillance. During the day, the camera functions like a regular IP camera and produces full-color images. At night, it employs infrared light to see in the darkness and produces black-and-white images.

⑤ Megapixel IP Cameras

A megapixel IP camera is equipped with a high-resolution lens to produce detailed images. The minimum resolution of a megapixel IP camera is 1280×1024 pixels. This camera requires significantly higher bandwidth and storage capacity than a regular network camera in order to transmit and store its HD images and videos. These cameras come in handy when users regularly need to review surveillance tapes for details.

Home Security Applications

IP cameras can be used at home for personal use, whether it’s monitoring the liquor cabinet or the front porch.  Their uses are nearly endless.  Since some cameras are only a few inches long, they are easy to place in many spots:  on a shelf, beside a computer, on a counter, or even a windowsill.  The latter may be especially appropriate if there has been a rash of thefts in the area.  Parents with young children need to get out on the town once in a while, and they will often hire a nanny or babysitter.  That’s a perfect time to use a small camera for home surveillance.  If anything goes wrong, the parents can watch the footage and quickly get to the root of the problem.  When a teenage girl starts dating a boy the family doesn’t know, her parents may have some concerns.  While they may not want to embarrass either teenager with their presence, they may want to have a hidden camera in the living room or a bedroom– just in case.

Your safety is important to us. For the best affordable, high quality security cameras, visit us online at To speak with us directly, you can call us at 86-755 6664-2520, our staff is always ready and willing to help.

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The Differences between LCD and DLP Projector

Август 26th, 2015 by homesecuirtycameras and tagged ,
When shopping for projectors, you’ll likely be choosing between the two most common projection technologies: DLP and LCD. Below, we’ll compare projectors of both types, explaining each technology and the advantages of both home theater projectors. You can then decide which projector is best for your entertainment system.DLP projectors

DLP technology was invented by Dr. Larry Hornbeck of Texas Instruments in 1987 year, but spreading widely into projector market began years later, and DLP structure projectors still owns only ~50% of projector market in the world. DLP Smart Mini Projector have a DMD chip and the light is passed through it. On this chip there are composed thousands of micro mirrors, each of them represent a single pixel. These mirrors can be turned off or on, so the light is reflected or deflected. Thats why DLP projectors usually has so high contrast ratio.

To add colors to the image DLP pocket projector for android phone have integrated color wheel. New models have at least 6 colors on color wheel. Image and video quality highly depends on color wheel speed, which should be 4x for great video quality, 2x speed is not recommended as it is high possibility of rainbow effect appearance. Here we can recommend you Jimilab DLP mini projector.

DLP Benefits:

☆ Produces a smooth, crystal-clear image
☆ Capable of projecting ultra-fast (16 microsecond pixel response time - about 1,000 times faster than LCD projectors), smooth, jitter-free image
☆ Saller and lighter design profile
☆ Image pixilation is less visible than on LCD projections
☆ Filter-free design provides for virtually zero maintenance
☆ Saves significant maintenance dollars and labor over the projector’s lifespan, and lowers the total cost of ownership (TCO)

DLP Limitations:

☆ Requires more lumens than LCD in areas with ambient light
☆ Longer throw distance than LCD
☆ DLP color wheel may create “rainbow effect” on projected images
☆ Spinning color wheel and exhaust fans produce noise

LCD projectors

LCD technology is older compared to DLP. Our days most of LCD projector manufacturers use 3LCD technology, which was invented 1988 by Epson and still owns almost half of projector market in the world. In LCD projectors the light is passed through 3 seperate LCD panels which represent three colors: red, green and blue (that is why this technology also is called 3LCD). When light is passedthrough the LCD panels, individual pixels are turned on or off to allow light through or stop it. The separate colours are then converged and projected on the projection screen.

LCD Benefits:

☆ Delivers stronger brightness in its three basic colors
☆ Zoom lens offers more flexible mounting options
☆ Produces less noise than DLP projectors
☆ Richer colors provide better results in spaces with high ambient light
☆ Utilizes less power and outputs less heat
☆ No “rainbow effect” on projected images

LCD Limitations:

☆ Requires constant filter cleaning and replacement
☆ Image pixilation is more visible when compared to DLP
☆ Larger, heavier design profile
☆ Black tones may appear more gray, resulting in lesser contrast
☆ May have color decay after extended use


Both DLP and LCD projector technologies offer key advantages over the other, but each may be better suited to different applications.

For example, DLP projectors are more portable than LCD projectors; therefore DLP tends to be favored by presenters on the road ( mini projector). Because of DLP’s higher color saturation, better contrast, and image stability, it has become a popular choice for home theater usage. On the other hand, the three basic colors generated from LCD projectors are generally more accurate than DLP projectors. Neither technology is better than the other—each has its own distinct advantages, as well as some drawbacks.

Is your business ready to take advantage of DLP or LCD projectors? Have questions about what features are necessary for your specific projection need? Ask us here on the blog. To learn more about DLP projectors, read our press release here. Call +86-755 6664-2520 or visit us online at

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Security Camera Systems: Going Wireless

Август 25th, 2015 by homesecuirtycameras
Wireless security cameras are becoming more popular recently. They are used in many different areas. They can be put almost anywhere, since it is not necessary for them to be plugged in, and they are reasonably priced. The main drawback to security monitors and cameras is that the battery must be changed frequently. They do often come with multiple battery packs so you can have new ones charged and ready to go. There has also recently been some exciting new research on imaging chips and batteries which may soon remove this stumbling block.Wireless security cameras provide surveillance for homes or businesses. The uses of these cameras vary; those with remote access allow users to monitor activity inside of their homes to view interaction between caregivers and a child or to monitor children home alone. Outdoor cameras provide additional security by allowing users to view visitors at the door before opening it and to monitor perimeters of their home and grounds. Businesses rely on these GSM home alarm as well. Many wireless security cameras have motion and sound sensors that send out alerts to the user if the sensor triggers. Wireless cameras also allow users to install them in areas where wired security systems are not feasible. Knowing about the varied features offered by wireless security camera allows consumers to make an informed decision before purchasing one.

Wireless = Do It Yourself

One of the biggest advantages of a wireless home alarm system is the fact that you can install it yourself. So a wireless system is in essence a DIY (Do It Yourself) security system. The installation for most systems won’t take long – and simply involves sticking sensors in various locations in your home. You’ll usually want sensors behind all your doors, including your garage doors. Window sensors, while a good idea in the back of your home, can be replaced by motion sensors that cover the same area. In fact, you can usually cover several windows with one motion sensor. There’s also a price advantage in using motion sensors over window sensors – and that is, you can get one sensor instead of several. Not only will you not have to buy several window sensors, you also won’t need a glass break sensor, which is important in addition to a window sensor (if a burglar breaks the glass on a windows, the standard window sensor, which senses movement of the window frame, won’t be triggered).

How Wireless Security Camera Systems Work

Wireless Security cameras have a transmitter that sends a video signal to a receiver connected to a TV, VCR, computer, or other video equipment. One of the biggest differences between different models and costs is the range of the transmitter. Models can work from anywhere between a couple hundred feet and 10 miles or more. They can penetrate almost any kind of solid material. The video footage can be recorded and/or watched with live. To protect your home, your security camera system will probably require multiple cameras. Entry points into your home and property are standard, but sensitive areas such as pools, gardens, and playscapes are also common places for video surveillance.

Advantages of Wireless Security Cameras

The big advantage of wireless security cameras is they can be placed essentially anywhere you want and need them. They are relatively inexpensive and easy to install. Not only does the wireless design forego the need to drill a trench in your yard or add electrical wiring in your home, the versatility of installation increases your options for hidden security camera systems. While visible security cameras can act as a warning to burglars, if a burglar can see the camera he can probably also avoid and/or disable it. The one notable drawback to wireless security cameras is that their batteries must be recharged/replaced every 4 to 8 hours. More expensive models may have designs that accommodate more powerful batteries.

The other advantage to a wireless system that you install yourself is that you can save not only on installation costs, but on moving costs. If you ever need to move, you a) won’t have to uninstall all your hard wired sensors, control panel, etc. and try and move them (which can be a pain; ie. wireless sensors and components are much easier to move around), and b) you may well save on re-installation costs. Most home alarm companies that offer wireless DIY security systems should allow you to move the system to your new home at no additional charge. Furthermore, it will be much easier to actually move your system. When we moved ours, all we did was pack up all the sensors, components, and control panel, box them up, move them, and re-install them. Didn’t take more than a couple hours in total.

As we implement security measures in the form of security cameras and systems, it is always wise to secure these devices as well. Security cameras help us conveniently monitor our properties while we’re away, but if the wrong people gain access, not only does it violate our privacy, but we can become targets. Prevent hackers from gaining access by utilizing the tips mentioned above.

Do you have any other tips or personal experiences to share? Help your peers by sharing with us on our social networks – Facebook, Google+, Twitter, and Linkedin.

Your safety is important to us. For the best affordable, high quality security cameras, visit us online at To speak with us directly, you can call us at 86-755 6664-2520, our staff is always ready and willing to help.


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A Buyer’s Guide To Mini Projectors

Август 24th, 2015 by homesecuirtycameras
People who give presentations on business trips will often benefit most from using full-sized Smart Mini Projector. However, their large size, weight, and consumptive power needs don’t make them the best travel companions. In this article, we take a look at some of the available options for traveling professionals, illuminate some unexpected pitfalls, and offer advice that may not have otherwise occurred to you. At first, you should know what projector is.
mini projector

What is Mini Projector?

A mini projector is a compact projection device that is usually used for office presentations or personal video viewing. Often weighing no more than mobile phone, a true LED pocket projector can fit in your pocket, and is operated as a handheld device. Just like its bulkier big brother, these projectors can connect to various forms of devices, such as cameras, smart phones, DVD players & laptop computers.

Mini Projectors are shrunken down versions of normal projectors, that use laser or LED light to project an image and they run on batteries. Their small size makes them perfect for traveling or for people who have meetings and are always on the run. They weigh considerably less than their big brothers and thanks to their small bodies, they can be carried in a pocket.

How Portable Does It Have To Be?

The smallest projectors today fall into two categories: palm-top and pico. There’s some confusion about the categories, because most manufacturers call palm-tops pocket projectors. But with dimensions that top out at about 2.5 by a little more than 5 by 5 inches, the pocket description is more metaphorical than real. Mini projectors, on the other hand, are comparable to a cell phone in size and weight, so they can easily fit in a shirt pocket. Palm-tops are portable enough to carry with you easily when you need them. Mini projectors are small and light enough to carry all the time.

Some of projector also enhance their portability by being able to read files directly from a USB memory key. Ask yourself whether taking advantage of that feature will let you leave your computer at home. If so, a somewhat larger and heavier projector with a USB reader feature can be more portable in a practical sense than a lighter projector that won’t work without your computer.

What Resolution Do You Need?

Ideally, for best image quality, you should match the projector’s native resolution (the number of physical pixels in the projector’s display chip) to the resolution you use most often. Unfortunately, you don’t have the luxury of making that choice yet with either palm-tops or pico projectors. Palm-tops are universally SVGA—and in many cases not the standard 800 by 600, but a little off target (858 by 600, for example). That means the projector has to scale even a VGA image, which can degrade the image quality somewhat.

Pico projectors offer a little more choice in resolution, but currently top out at VGA (640 by 480), which is suitable for video or for basic presentations without much text or fine detail on any one slide. At least one projector offers only half-VGA (480 by 320) and is meant strictly for video or still images. None of the mini projectors—pico or palm-top—offers native widescreen resolutions. Pico projectors, and some palm-tops, are also relatively limited in the range of resolutions they can accept and then scale down to their native resolution. So make sure the projector can accept the signal you plan to send to it.

How Bright Should It Be?

The general rule for projectors is that brighter isn’t always better, but you can ignore that rule for palm-top and pico projectors. None of them is bright enough to qualify as too bright under any lighting conditions for any reasonable-size image. So for these projectors, brighter is better. Always.

The rated brightness for pico projectors starts at about 10 lumens. As a rule of thumb, that’s bright enough to let you project a useful image for extended viewing in a darkened room at roughly a 24-inch diagonal size. Ratings for current palm-top projectors run from well under 100 lumens to somewhat short of 200 lumens. As a rule of thumb again, that’s bright enough even on the low end for at least a 40-inch diagonal image in dim lighting. On the high end, it’s bright enough for at least a 70-inch diagonal image, even with some ambient light.

Don’t Take Contrast Ratio Too Seriously

Though a projector’s specifications can’t be complete without mentioning the contrast ratio, it’s not much of a big deal. But you should understand that a contrast ratio refers to the ratio of the brightest and the darkest areas a projector can create. In any case, the contrast ratio a projector comes with has to play an important role in a darkened room to ensure exact display or graphics or visuals.

How Do You Plan To Connect?

How you plan to connect a mini projector is also one of the most important concerns. Though a couple of pico and palm-top projectors come along with only composite video, most of them are provided with both SVGA and composite connectors. Before you buy a mini projector, you should always make sure that the ports available on the projector are enough and compatible with those on your computer/video equipment.


Among other selection attributes, the brand and the model of a mini projector is also of great importance. In case you’ve already used a particular brand earlier, you can be sure of the quality you’ll get. Your family or friends may also suggest you some specific brands. If a particular brand has a history of delivering real value in the past, there are maximum chances that it will stick to its policies in future as well. However, you should also be open to experiment with new makes/models because you never know when one of them will turn into your most liked brand for future.


Any mini projector that you choose to buy should match your budget as well. It’s always advisable that you check out the prices really well before placing an order with a local or online retailer. Most importantly, you should consider all the above mentioned factors and features (speakers, batteries, SD cards, internal memory etc.) so that you can get the best deal on the mini projector you buy for outdoor or indoor uses.

Though a projector’s specifications can’t be complete without mentioning the contrast ratio, it’s not much of a big deal. But you should understand that a contrast ratio refers to the ratio of the brightest and the darkest areas a projector can create. In any case, the contrast ratio a projector comes with has to play an important role in a darkened room to ensure exact display or graphics or visuals.

After seeing what to look for when buying a pico projector, we’ll be giving you a head start in your search. Here is a great choice that you might consider if you wish to invest in such a gadget.

Jimilab Q Shot8 Smart Mini Pocket Projector

Q short8 mini projector

Offering users a picture brightness of 80 Lumens spread over a 854 x 480 pixel resoluton, this pico projector is the perfect gadget for those who want to have a very small, but yet powerful device with them. it also provides support for HDMI, USB and AV input and with its internal memory of 4 GB which can be expanded with an SD card, it has all the right features for most users.

Mini projectors are not too powerful now, but in a few years, we’re certain that they will become much better and more popular. As their performance increases and their battery life is longer, more users will want to own such a device. We can’t hardly wait for that moment.

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Different Types Of Baby Monitors

Август 21st, 2015 by homesecuirtycameras
Technology is such these days that most parents have a Wireless Monitor installed in the baby’s nursery room.  And while there isn’t a huge spectrum of different types to choose from, there are some significant differences. So let’s take a little bit of time and discuss the different types of baby monitors.

What Are Baby Monitors?

Basically, a wireless baby monitors, also known as a baby alarm, is a device that can be used to monitor your children or babies even if they are located in a separate room than yours. It is a simplex transmitter and receiver system that can be used to remotely listen for different noises made by your kids and babies.

A transmitter device with a microphone is placed in the room of your baby (usually near the baby). Another device with a receiver and with speakers can be carried by you, the parents, or the baby sitter, or anyone who is taking care of the babies. With baby monitors, you can keep track of your baby?s even if you are doing something else in the proximity of your house.

Types of Baby Monitors

Baby Sound Monitors

The most commonly used type of baby monitor purchased by parents is the sound monitor. These are available in analog and digital models. Sound monitors have a transmitter that will pick up any sounds coming from baby’s room and transmit them to the receiver. This allows parents to hear when the baby wakes up from a nap or if the baby is crying in the middle of the night for a feeding. These types of monitors are often portable and may have more than one receiver. Parents can then listen to their babies from all over the home.

Baby Video Monitors

When sound is not enough, parents may want the extra comfort that comes with seeing what baby is doing. Baby video monitors have a camera with a microphone that transmits images and sound to a display on the receiver. The receiver is usually a handheld device with a small black and white or color screen. Some models have portable screens that can be carried around, while others may need to stay in one place. Other models can stream video to the Internet so that parents have the ability to watch their babies from any computer with an internet connection.

Depending on the type of video monitor and the features that come with it, these monitors may have an LCD display, multiple cameras for placement in different parts of the room or house, night vision, and automatic camera scanning. Depending on the family’s needs for the baby video monitor, the picture quality will determine how useful the monitor is. Parents that just need to see movement from baby could do well with a small screen with a lower resolution. Parents that want a crystal clear picture of baby at all times may want to invest in a color screen with night vision and high resolution.

Baby Motion Monitors

Baby motion monitors are different in that they don’t usually transmit the baby’s sound or movement. Instead, these types of baby monitors have a sensor that is placed under the mattress of the baby’s crib to detect when the baby moves. Babies will move several times while they are asleep, and when the baby does not move for more than 20 seconds an alarm on the receiver will sound. Some motion monitors will also transmit sounds so that parents can listen for breathing and crying. These types of monitors are often used with babies born prematurely or babies that have some health complications.

Having said all that, if you already have a wireless network setup at home, and these days, many people do, then it probably makes sense to go with a wireless model.  This way you can use your computer, your tablet, or smart phone as a receiver, depending on the model you purchase.

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How Much Do You Know About Pico Projector

Август 20th, 2015 by homesecuirtycameras

Pico projectors are very small and compact projectors that usually run with a battery, thus freeing them from the wall outlet. This makes them a perfect companion for the new mobile generation. Historically, LED pocket projector have failed to gain a substantial foothold  among consumers and for good reason.

pocket projector

One thing to keep in mind is that Compact Projector are not intended to compete with your standard Home Theater projectors. They have a very specific roles and as you will see below, pico projectors fill a niche that sorely needs filling.

Older generation pico projectors had very low lumen output, the image was easily washed out with the slightest amount of ambient light and battery life left a lot to be desired. Far from an ideal situation and one that left most consumers less than impressed. You will be glad to hear that modern technology offers many magnitudes of improvement over those earlier models and opens the way for pico projectors to finally come into their own.

How does a pico projector work?

There are several companies developing and producing pico projectors, and there are 3 major technologies: DLP, LCoS and Laser-Beam-Steering (LBS).

DLP and LCoS use a white light source, and some sort of filtering technique to create a different brightness and color on each pixel:

DLP (Digital Light Processing) - pioneered by TI, the idea behind DLP is to use tiny mirrors on a chip that direct the light. Each mirror controls the amount of light each pixel on the target picture gets (the mirror has two states, on and off. It refreshes many times in a second - and if 50% of the times it is on, then the pixel appears at 50% the brightness). Color is achieved by a using a color wheel between the light source and the mirrors - this splits the light in red/green/blue, and each mirror controls all thee light beams for its designated pixel.

LCoS (Liquid Crystal on Silicon): an LCoS projector uses a small liquid-crystal display (LCD) to control how much light each pixel gets. There are two basic designs to get color: Color-Filter (CF-LCoS) which uses 3 subpixels, each with its own color (RGB) and a Field-Sequential-Color (FSC) which uses a faster LCD with a color filter - so you split the image for the 3 main colors (RGB) sequentially and you refresh the LCD 3 times (once for each color). The light source for the LCoS can be LED or diffused laser.

Laser-Beam-Steering (LBS) projectors are different, creating the image one pixel at a time, using a directed laser beam. You start with 3 different lasers (Red/Green/Blue), each at its required brightness, which are combined using optics, and guided using a mirror (or two mirrors in some designs). If you scan the image fast enough (usually at over 60Hz), you do not notice this pixel-by-pixel design.

The different types of pico projector

There are 4 basic types of pico projectors:

Stand-alone: these receive the input via a cable (A/V, USB, etc) and cannot display anything unless you use another device to stream the video signal.

USB projector: stand alone projectors that use USB for both power and data, and so require a laptop (or tablet). They are the smallest projectors as they do not include a battery.

Media-player: projectors that include on-board memory (or a memory-card slot) and can play files directly from the memory (usually photos, videos and sometimes office documents too). This is really useful for some people, but file format support and lack of convenient controls sometimes make media player projectors less useful then they could have been.

Embedded projector: in this case the light-engine is embedded inside a mobile device such as a phone, camera, laptop, tablet or PDA.

About Jimi Electronics Co.,Ltd

Jimi Electronics Co.,Ltd, located in NanShan District, Shenzhen. As a leading and advanced wireless communication solution provider in China. Our company is a leading supplier of pocket projectors, Smart Home Products, Smart GPS Navigation, Smart Rearview Mirror DVR and GPS Tracker, etc., with well-equipped testing equipment and strong technical force. With a wide range, good quality, reasonable prices and stylish designs.

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Where to Install Wirleless Cameras for DIY Home Security

Август 19th, 2015 by homesecuirtycameras

security cameras

Having wireless secuirty cameras in and around your home is a great way to not only keep an eye on the pets and kids, but they’re also great for home security. With motion and sound detection alerts and the ability to view camera feed from pretty much anywhere on your phone or tablet wireless home monitor system give you the peace of mind to know that everything is A-OK at home. But for the ultimate home security setup it’s important to know the best places for cameras so that if a break in does occur or someone is snooping around the house you have the right placement to get a good look and take action. Check out our video below for tips in the best places for wireless home cameras.

1. Front Door

A front door camera is always a good idea, not only as a deterrent for break-ins, since the majority (34%) do enter through the front door, but also for other forms of theft like stealing mail or packages. Another great feature is that it allows you to see who is at the door before answering it, so even when you’re not home you can see who’s knocking.

Expert Tip: You can install a high-tech peephole camera, so you can see who’s knocking before you open the door.

2, The Back Door

Regularly, the back door is located in an obvious place, this makes it become the second most popular entry point for home thieves. Undoubtedly, having a wireless home monitoring with a clear view of your back door is quite important. Similar to other places, ensuring the video camera isn’t reachable to burglars. You can install a motion activated flood light to keep your backdoor well-lit.

3. First Floor Windows

The third most popular entry for burglars is the first floor (ground floor) window. There are two options when monitoring first floor windows.

a) Indoor security camera on window sill

b) Indoor security camera facing window

Expert Tip: Notice the camera view above is from an angle, do you know why? Because if you point a camera directly at a window there will be too much backlight as shown below. You won’t be able to identify a burglar’s face.

4. The Garage

Your garage is also another potential enter-point for home burglary. Burglars can enter into your home through unlocked garage or by using a garage door opener. Mount a security camera on eaves of garage roof or place that has a good view of your garage and driveway. Keep your garage doors locked at all times (even when you are home), and keep your garage door opener out of sight.

5. The Backyard

If your house has a backyard, it’s also important to install a security camera that can provide you a clear view of your backyard. A outdoor security camera with a wide view angle and long IR range is ideal for your backyard video surveillance. Also, it’s better to keep your backyard well-lit. Many homeowners keep expensive recreational equipment and lawn and garden equipment out in their backyard. Don’t make your backyard enticing to thieves. Keep all equipment out of view, or locked in a shed.


Keeping our home and family safe and secure should always be our top priority. A lot of people are proactive about it, while some only hope for the best. It is advisable to be in the former category though as you never know when trouble comes knocking on your door. You want to be fully prepared to deal with it, rather than regret not having taken enough precautionary measures. Installing security cameras in strategic locations should go a long way in easing your worries on this front.

We also looked at some things to consider when placing cameras, such as:

*Night vision cameras behind a glass window cannot detect heat outside so save your money and get a standard IP camera for indoor use.
*Outdoor cameras require access to a power source so consider this before you pick your spot.
*Avoid pointing indoor or outdoor cameras directly into the sun. Consider where the sun is at dawn and dust.
*Position cameras at an angle to avoid backlight from windows and doors.
*Avoid positioning cameras too high, especially close to walkways and entrances. Head height is best to capture the face of an intruder.
*Consider multiple cameras for large areas like backyards. Monitor entrances to identify an intruder.

I hope this helps you place your security cameras in the best positions. If you have any questions please comment below.

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3 Benefits Home Security Cameras Can Help Protect Your Family

Август 18th, 2015 by homesecuirtycameras
Working with a professional integrator to set up a home security camera system is a great way to protect your property, monitor the kids, check up on pets and keep tabs on who is raiding the refrigerator late at night. As more and more of our devices become wireless, so too are home security systems. Wireless home monitoring cameras are advantageous because they don’t require as much hardware and are easier to install. Here are a few other benefits of a wireless system.

home security

Keep a virtual eye on your home

If your have kids, you have no doubt used a babysitter while you were away from home. Leaving your kids with someone else can be a terrifying experience, especially for new parents and those using a new babysitter.

You need time for yourself, but when you are away you are left with nagging questions. Are the kids behaving? Is the babysitter actually watching them, or playing video games?

Home security cameras can be accessed on your smartphone or tablet so you can see exactly what is happening in real time. No more nagging questions. No more worry. wireless security monitor let you enjoy your night away from home.

Incorporate home automation

Often times, families are introduced to the world of home automation when they install a security system. Want to take your system to the next level? Your security system can be integrated into your home automation system allowing you to lock doors, arm the alarm, and turn off lights using a keypad, smartphone or tablet. A cool feature of home automation is you don’t have to be home to use it. With a PC or smartphone, you can adjust the thermostat to keep pipes from freezing or to ensure the house is warm before you arrive home in the evening.

Makes Room for Peace of Mind

The sense of security and peace you gain with a home security system is perhaps the greatest benefit of all. Next to being safe, the confidence of feeling safe will help you be a more productive, healthy, and focused person. Adding a security system to your home gives you an extra layer of defense against any potential intruders. Whether you rent or own, you can enjoy the benefits that come with having a security system.

Home security cameras as part of a state-of-the-art home security system will help ensure your loved ones are protected and offer you peace of mind knowing they feel secure. Having security cameras in place won’t erase the possibility of break-ins to your home or business, but they are valuable both before and after a break-in. recognizes that as a homeowner, you have a lot to consider when choosing what type of video surveillance system is right for your home. We’ll help evaluate your needs and match you with the security system and tools that will serve you best. Stop by and see us at or give us a call at +86-755 6664-2520.

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How to Choose a DIY Home monitoring System

Август 17th, 2015 by homesecuirtycameras

Home automation is futuristic. It lets you can control your home remotely from a smartphone or web-enabled device, and energy management solutions in addition to security protection.

If you want to protect your home, business or property against theft and vandalism, a do-it-yourself video monitoring system is an affordable and effective line of defense. Today’s DIY monitoring systems are easy to set up and easy to operate. Many systems offer advanced features like instant email alerts, anytime viewing from a smartphone or computer, and months and months of recording storage. Prices on DIY home monitor camera systems have come way down in recent years, making a DIY kit an attractive choice for many homeowners and businesses. The following are some advice for you choosing a suitable DIY secuirty system.

Do you want to monitor indoor or outdoor activity?

Indoor cameras are generally less expensive than outdoor cameras because they are not equipped with weatherproofing. These cameras are ideal for best wireless baby monitor, indoor monitoring, and covert monitoring.

Outdoor cameras can of course be placed both in doors and outdoors. It is important to buy an outdoor camera even if you only plan to use it outside occasionally, to protect the circuitry against rain, snow and dust. These cameras are ideal for monitoring your property including your car, pool, and entrances to your home. You can also monitor locations surrounding your business such as parking lots, areas prone to vandalism, and entrance ways.

Wireless or wired?

Although wireless home cameras are easier to set up and generally less expensive, wired cameras are usually superior in quality and more tamper-resistant.  Wired cameras also generally outperform wireless when it comes to software-based motion-detected recording (that is, the system only records when it senses motion to conserve storage space on the hard drive).  Wired cameras also ensure better performance because they are not affected by radio signals the way wireless cameras are.  For outdoor use, wired cameras are always recommended because they tend to be more durable and weather-resistant.  They are also best for applications where 24-hour monitoring is required.

How many cameras will you need?

To determine how many cameras you will need, survey your building or property and figure out the best places to mount cameras to get optimum coverage. Cameras with a 75-foot or 100-foot range will allow you to monitor a larger area with fewer cameras. The number of channels on a DIY video monitoring system determines how many cameras it can accept. Many kits come with 4 cameras or 8 cameras. Some kits have extra channels so additional cameras can be added later on. Or, you can get a kit that comes with 16 cameras so you can monitor all around your property.

Viewing Options – Live Feed or Recording?

This all depends on the application. For patient or child monitoring, recording is likely unnecessary. Live feed, on the other hand, is important in this application as it allows you to respond quickly to a situation. Many SVAT systems alert you and display your camera’s feed on the monitor when motion or sound is detected, ensuring that you can provide help to your child or patient in case there is a problem.

For business monitoring, recording camera footage is highly recommended. Many security monitors come with video out jacks that allow you to connect your VCR for recording. However, a Digital Video Recorder (DVR) is a more effective recording device. SVAT’s DVRs allow you to record video from multiple cameras at the same time. They record digitally and store the video files on a hard disk or flash card. You can then search and play the recorded footage by time and date. Many DVRs offer weeks of continuous recording and you can set them to record only when motion is detected, which saves disk space and records only what is relevant. Some of SVAT’DVRs feature internet access, which allows you to securely view your DVR and all connected cameras from anywhere in the world.

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