2012年09月07日

In a photoelectric mouse

In general we common optical mouse usually refers to the use of photoelectric element, based on the moving surface image logic to generate mobile mouse.

Optical mouse optical mouse working principle is: LED Dimmer dab5d58ck in the interior having a light emitting diode, the light emitting diode emits light, illuminating the optical mouse bottom surface ( this is why the mouse bottom will shine .). Then the photoelectric mouse bottom surface of a part of the light reflected back, after a group of optical lens, is transmitted to a light sensing device ( micro imager ) imaging.

Thus, when the mouse moves, the track will be recorded as a coherent image high speed shooting. With the photoelectric mouse inside a piece of special image analysis chip ( DSP, namely digital microprocessor ) to mobile trajectory on the uptake of a series of image analysis and processing, google tv remote the image feature point position change to undertake an analysis, to judge the mouse moving direction and the moving distance, thereby completing the cursor position.

Photoelectric mouse usually consists of the following components: optical sensors, optical lens, light emitting diodes, the interface microprocessor, touch keys, roller, connection, PS/2 or USB interface, such as shell. And we point to learn under the light-emitting diode ( LED ) in the application of photoelectric mouse.

We know, photoelectric mouse in the use of the process will emit light red light at the bottom. This is the mouse in the light emitting diode emits in the mouse, it has what effect? Light emitting diode emits bright ( this is mainly to get enough illumination light ), online ups power in part through the mouse at the bottom of the optical lens (i.e., wherein the prism ) to illuminate the mouse bottom; the other part is directly to the optical sensor heads. Popular point, is a light emitting diode is the role of light generated mouse work required for light source.

But why common optical mouse using LED is red?

Why would choose red? The reason is simple, because the red light LED technology is relatively mature, but the cost it is also cheaper. This makes the red highlight LED longest service life. While optical engine imaging is monochromatic, no matter what the color of the light source will not influence. So in this case, except for a few manufacturers to create attractions, The fourth generation car light most manufacturers will certainly choose red products, such as many photoelectric mouse using blue LED, is out of the ordinary, but is essentially the same as that of.

In addition, combined with type LED and SMD LED also can be used to decorate the mouse, causes it to emit colorful light colors, more appealing to the eye. More in line with the owners of the fashion aesthetic demand. The global annual production of hundreds of millions of photoelectric mouse, with each mouse consumption 1 ~7 LED calculation, the economic benefits of effective supporting part of LED industry shipments.

Looking to the future, even if the laser mouse is a popular trend, but still can not be separated from LED auxiliary light. Nevertheless, the photoelectric mouse popularization situation, Separation point the application of LED in the mouse still occupy a dominant position, can not shake.

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