How does an optical mouse work?
*The optical mouse uses a tiny camera to take picture (1500-6000 pictures/second).
*Also uses a red LED that bounces light of that surface on a complementary metal-oxide semiconductor (CMOS) sensor.
*The CMOS sensor sends each image to a digital signal processor (DSP) for analysis.
*The DSP detects the patterns in the images and see how those patterns have moved since the previous image, depending on change of pattern over all images sequence.
*The DSP determines how far the mouse has moved and sends the moving coordinates to the computer.
ABU ASHRAF JABED
123-115-002
CSE 28th
Metropolitan University
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