光电鼠标原理(国外英文资料).docVIP

光电鼠标原理(国外英文资料) Photoelectric mouse principle,.Txt cherish life - God also allows you to live, there must be his arrangements. Lei Feng does good without seeking recognition, but everything diary. Photoelectric mouse principle Photoelectric mouse, principle The biggest difference between a photoelectric mouse and a mechanical mouse is that it has different positioning modes. The working principle is: in the optical mouse optical mouse has an internal light emitting diode, emitted by the light emitting diode light, illuminating optical mouse bottom surface (which is why the bottom of the mouse will shine.). Then, a part of the light reflected back on the bottom surface of the photoelectric mouse is transmitted through a set of optical lenses to an optical induction device (micro imager). Thus, when the photoelectric mouse moves, the moving track is recorded as a set of coherent images which are taken at high speed. Finally, using a dedicated image optical mouse internal analysis chip (DSP, digital microprocessor) to a series of image trajectories on the uptake of analysis, through the analysis of the changes of these image feature points, to judge the moving direction and moving distance of the mouse cursor, thus completing the positioning. Photoelectric mouse usually consists of the following parts: optical sensor, optical lens, light-emitting diode, interface microprocessor, light touch button, roller, connection, PS/2 or USB interface, shell and so on. Here are the following: 0 F0 r* V. G* N1 W% L T Optical sensors are the core of the photoelectric mouse, and only three companies that can produce optical sensors are Agilent, Microsoft and Logitech at present. Among them, the optical sensor Agilent Co is widely used, in addition to Microsoft and Logitech all optical mouse and other optical mouse are basically using the optical sensor of the Agilent Co. Control chip of photoelectric mouse The control chip is responsible for coordinating the work of each component in