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 KVM Switches, Industrial Computer,Industrial Notebook Manufacturer in China |
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How does an Optical Mouse work?
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An optical mouse uses camera technology and digital processing to compare and track the position of the mouse, rather than a ball and rollers used on older mice. It is an advanced computer pointing device that uses a light-emitting diode ( LED ), an optical sensor, and digital signal processing ( DSP ) in place of the traditional mouse ball and electromechanical transducer. Movement is detected by sensing changes in reflected light, rather than by interpreting the motion of a rolling sphere. This technology, first introduced by Agilent technologies in 1999, helps give users more precise performance without the maintenance and cleaning needed on older mice.
First the LED produces a red light that is emitted onto a surface. The light is reflected off the surface back to the CMOS sensor. The CMOS sensor sends each image that is reflected back to a DSP (Digital Signal Processor) for analysis. Using the thousands of images that the CMOS sends to the DSP for analysis, the DSP is able to detect both patterns and images and can determine if the mouse has moved, at what distance it has moved and at what speed. The optical mouse takes microscopic snapshots of the working surface at a rate of more than 1,000 images per second. Inside each optical mouse is a small camera that takes more than a thousand snapshot pictures every second. A small LED (light-emitting diode) provides light underneath the mouse, helping to highlight slight differences in the surface underneath the mouse.
There are many benefits to using optical mice over its predecessor the track ball or commonly called manual mouse. First of all there are no moving parts. Since the optical mouse uses and LED instead of a tiny rubber ball, there is no way for the LED to stick or get dirty. One of the biggest benefits is that the elimination of the mouse ball, which frequently required cleaning to scrape accumulated grime of the ball or the rollers inside. This leads to high reliability. Many people complain that their manual mice need constant maintenance or repair. Optical mice usually work well for years without a malfunction. Another benefit is that digital processing often results in smoother, more accurate performance than prior technologies. Optical mice typically don't require a mouse pad and can be used on many surfaces, including those that are not entirely flat.
Because the technology is more advanced and uses an LED and CMOS instead of a rubber ball to measure tracking, you will get much better response and performance. Usually, the better the tracking, the smoother the total experience. Another great reason that the Optical mouse has become the most popular mouse technology is that you can use an optical mouse on lots of different surfaces. Manual mice need a mouse pad made out of a special material to function optimally, optical mice do well on almost any kind of desk top or materials.
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