| 摘要 |
An optical computer mouse senses movement by detecting the variations in intensity of reflected primary colors from a surface over which the mouse is moved. The surface is illuminated by a plurality of colors of light. An image sensor is formed from an array of photodiodes covered with a color filter array that matches the primary colors of the lights and is used to detect intensity of reflected light of the primary colors from the surface on which the optical computer mouse rests. Variations in the intensity of at least one of the primary colors of reflected light are used to determine movement by the computer mouse. Both the intensity of the individual lights and sensitivity of the array of photo diodes are controlled by a controller. |
