The mouse has a laser diode
The color of the optical mouse's LEDs can vary, but red is most common, as red diodes are inexpensive and silicon photodetectors are very sensitive to red light. Other colors are sometimes used, such as the blue LED of the V-Mouse VM-101 illustrated at right. This small but significant upgrade allows the laser mouse to achieve higher sensitivity and accuracy, making it ideal for tasks that require precision, such as gaming. Optical mouse technology uses a light-emitting diode (LED) to illuminate the surface below the mouse, and a complementary metal-oxide-semiconductor (CMOS) sensor to detect the movement of the mouse. The CMOS sensor captures images of the surface at a rate of thousands of frames per second, allowing. In addition to LEDs, a recent innovation are laser-based optical mice that detect.
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