Foreword: Infrared night vision technology of security technology is an indispensable application technology whether it is person monitoring or animal monitoring. At this stage, it has been applied to the field of high-tech toy products. Night-vision devices with powerful functions are becoming attractive products in the toy market.
The toy, which retails for only $59.99, can see distant objects in a completely dark environment. The product is one of the "high-tech toys" of the EyeClops series of JakksPacific. Other toys include bionic eyes and mini projectors.
The common feature of all EyeClops toys is the flexible integration of a variety of proven technologies, and the packaging approach is very attractive to young people. Such as the bionic eye, it is a "plug and play TV microscope" 200 times magnification, the optical composite lens and CMOS sensor pairing, and then the amplified image into the standard TV's S video input. It sounds a bit like a laboratory device and looks more like a big plastic eyeball on a stick.
Again, this night vision goggles looks like a cross between a binoculars and a toy ship. Many techniques are used in the wide head of the night vision goggles, but the simplest is the combination of near-infrared illumination and image sensors. NightVision 2.0's basic lighting is provided by two strings of five infrared LEDs, each mounted on the front of the night vision goggles, like a pair of headlights. These LEDs emit invisible light, but the user can see everything within about 20 feet. Its use experience is similar to binocular telescopes, but it is clear that the eyepieces are focused on a single LCD mounted inside the device housing.
The toggle switch can enter the second mode, which extends the viewing distance to approximately 50 feet. The principle is to increase the illumination from the red LED auxiliary ring. The image resolution under both settings is not very high, but its performance is undoubtedly veritable.
Next, let's take a look at the internal structure of NightVision 2.0, from which not only to understand how it works, but also to understand why this product can achieve powerful features at the price of the toy store.
The CMOS image sensor is OmniVision's VGA (640x480 pixels) module, which is an "ultra-high sensitivity" OV7740 on the market. Because of having 4.2? The larger pixel size of m, so outstanding low light sensitivity is worth looking forward to. The OV7740 also performs image processing tasks, output data with the clock, and synchronization signals in a variety of formats. These features make NightVision2.0 a very small number of ICs.
The display is Wintek's WM-F4823V4TFT LCD, a 2.4-inch module with an onboard driver IC. The 8 parallel data inputs of the image sensor and display are verified to be directly connected. The data clock, Vsync, and Hsync (vertical and horizontal sync clocks) are also directly connected from the sensor to the monitor. If there is a need for higher-quality images, this lack of an intermediate processing architecture may be problematic, but here, such an implementation seems sufficient.
The third and final very important IC is a small bead-like micro-controller that is mounted on the lower adapter plate. The microcontroller seems to be a low-end 8-bit flash MCU, and the die flag suggests that the chip may be from ELAN. This 18-pin device manages the display mode (can switch between normal RGB and green monochrome), and it seems to manage the clock signal during startup and shutdown.
There are 3 smaller devices around this IC. One is AMC1117 from ADD Microtech, one is from BM1117 from Bookly Microelectronics, both are three-pin fixed voltage regulators; the third is NXP's 74HC00 This is a four-way dual-input NAND gate.
The cost of electronic materials, including passives, PCBs, and LEDs, is estimated to be between $10 and $12, with image sensors and displays consuming the most cost. Add a few extra dollars to the optics, plastic housing and packaging, and the total manufacturing cost is about $15, so it's easy to understand why NightVision 2.0 can be sold in bulk as a toy.
In addition, as can be seen from the circuit implementation, a typical webcam (Webcam) can become an infrared network camera by removing the filter and adding some lighting devices. There are many kinds of such imitation products already in existence, which means that night vision technology is not only a toy store's technology, but also an excellent choice for enthusiasts to conduct product experiments.
The toy, which retails for only $59.99, can see distant objects in a completely dark environment. The product is one of the "high-tech toys" of the EyeClops series of JakksPacific. Other toys include bionic eyes and mini projectors.
The common feature of all EyeClops toys is the flexible integration of a variety of proven technologies, and the packaging approach is very attractive to young people. Such as the bionic eye, it is a "plug and play TV microscope" 200 times magnification, the optical composite lens and CMOS sensor pairing, and then the amplified image into the standard TV's S video input. It sounds a bit like a laboratory device and looks more like a big plastic eyeball on a stick.
Again, this night vision goggles looks like a cross between a binoculars and a toy ship. Many techniques are used in the wide head of the night vision goggles, but the simplest is the combination of near-infrared illumination and image sensors. NightVision 2.0's basic lighting is provided by two strings of five infrared LEDs, each mounted on the front of the night vision goggles, like a pair of headlights. These LEDs emit invisible light, but the user can see everything within about 20 feet. Its use experience is similar to binocular telescopes, but it is clear that the eyepieces are focused on a single LCD mounted inside the device housing.
The toggle switch can enter the second mode, which extends the viewing distance to approximately 50 feet. The principle is to increase the illumination from the red LED auxiliary ring. The image resolution under both settings is not very high, but its performance is undoubtedly veritable.
Next, let's take a look at the internal structure of NightVision 2.0, from which not only to understand how it works, but also to understand why this product can achieve powerful features at the price of the toy store.
Figure: NightVision2.0 is a 'high-tech toy' that flexibly integrates mature technologies
Disassembly shows that the structure of NightVision 2.0 is similar to that of a pocket camera. The lens barrel is pointed away from the user. The “viewfinder†LCD is facing the user. All parts are mounted on a circuit board. At the same time, there are few on the circuit board. Source device. After removing the lens barrel, you can see the plastic internal structure with a line pattern decoration. Simple but effective artificial focusing is achieved by rotating the entire lens structure up and down along the lens barrel. There is obviously a lack of filters in the lens frames of many CMOS cameras. This type of filter usually uses infrared reduction coatings, which are necessary in this part of the default. The CMOS image sensor is OmniVision's VGA (640x480 pixels) module, which is an "ultra-high sensitivity" OV7740 on the market. Because of having 4.2? The larger pixel size of m, so outstanding low light sensitivity is worth looking forward to. The OV7740 also performs image processing tasks, output data with the clock, and synchronization signals in a variety of formats. These features make NightVision2.0 a very small number of ICs.
The display is Wintek's WM-F4823V4TFT LCD, a 2.4-inch module with an onboard driver IC. The 8 parallel data inputs of the image sensor and display are verified to be directly connected. The data clock, Vsync, and Hsync (vertical and horizontal sync clocks) are also directly connected from the sensor to the monitor. If there is a need for higher-quality images, this lack of an intermediate processing architecture may be problematic, but here, such an implementation seems sufficient.
The third and final very important IC is a small bead-like micro-controller that is mounted on the lower adapter plate. The microcontroller seems to be a low-end 8-bit flash MCU, and the die flag suggests that the chip may be from ELAN. This 18-pin device manages the display mode (can switch between normal RGB and green monochrome), and it seems to manage the clock signal during startup and shutdown.
There are 3 smaller devices around this IC. One is AMC1117 from ADD Microtech, one is from BM1117 from Bookly Microelectronics, both are three-pin fixed voltage regulators; the third is NXP's 74HC00 This is a four-way dual-input NAND gate.
The cost of electronic materials, including passives, PCBs, and LEDs, is estimated to be between $10 and $12, with image sensors and displays consuming the most cost. Add a few extra dollars to the optics, plastic housing and packaging, and the total manufacturing cost is about $15, so it's easy to understand why NightVision 2.0 can be sold in bulk as a toy.
In addition, as can be seen from the circuit implementation, a typical webcam (Webcam) can become an infrared network camera by removing the filter and adding some lighting devices. There are many kinds of such imitation products already in existence, which means that night vision technology is not only a toy store's technology, but also an excellent choice for enthusiasts to conduct product experiments.
Double Convex Cylindrical Lens
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