An optical computer
mouse uses a light source, typically an
LED, and a light detector, such as an
array of photodiodes, to detect movement relative to a surface. It is an
alternative to the mechanical mouse, which uses moving parts to sense motion.The
earliest optical mice detected movement on pre-printed mouse pad surfaces.
Whereas modern optical mice work on most opaque diffusely reflective surfaces
like paper, they usually aren't able to
detect movement on specularly reflective surfaces like polished stone;
coherently-lit mice can function even on such glossy surfaces, but perform
poorly on transparent surfaces; dark field illumination allows mice to function
reliably even on glass. Laser diodes are also used for better resolution and
precision. Battery-powered wireless optical mice flash the LED intermittently
to save power, and only glow steadily when movement is detected.
The round yellow or
some other color of your mouse pointer to click on the link below ...
Yellow mouse Cursor…
কম্পিউটারে মাউস পয়েন্টার গোলাকার হলুদ বা অন্যান্য কালার শিখতে…
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