Optical Mouse Process

موضوع: Optical Mouse Process الثلاثاء مايو 31, 2011 6:58 am

Optical Mouse Process

First:
the LED produces a red light that is emitted onto a surface. The light
is reflected off the surface back to the CMOS sensor. The CMOS sensor
sends each image that is reflected back to a DSP (Digital Signal
Processor) for analysis.

Using the thousands of images that
the CMOS sends to the DSP for analysis, the DSP is able to detect both
patterns and images and can determine if the mouse has moved, at what
distance it has moved and at what speed. It is able to determine
coordinates which are then sent to the computer that the mouse is
hooked up to.

At this point the coordinates have been received
by the computer and will show the movement of the mouse, usually by its
cursor on the computer screen. Your computer is updated with mouse
coordinates more than hundreds of times per second, because movement is
so fast, the appearance of the mouse cursor on your computer screen is
very smooth.

Benefits of Optical Mice:
There are many benefits
to using optical mice over its predecessor the track ball or commonly
called manual mouse. First of all there are no moving parts. Since the
optical mouse uses and LED instead of a tiny rubber ball, there is no
way for the LED to stick or get dirty. This leads to high reliability.
Many people complain that their manual mice need constant maintenance
or repair. Optical mice usually work well for years without a
malfunction.

Because the technology is more advanced and uses an
LED and CMOS instead of a rubber ball to measure tracking, you will get
much better response and performance. Usually, the better the tracking,
the smoother the total experience.

Another great reason that the
Optical mouse has become the most popular mouse technology is that you
can use an optical mouse on lots of different surfaces. Manual mice
need a mouse pad made out of a special material to function optimally,
optical mice do well on almost any kind of desk top or materials.

Optical mice are also very inexpensive. Most optical mice are less than $30 and some can be purchased for less than $15.

Laser Based Optical Mice:
A
new technology has recently emerged piggy backing off of the LED
optical mouse. The laser based optical mouse works similar to the LED
based optical mouse. It uses a laser instead of a LED. The benefit is
that because it uses a laser beam, the mouse can track much better,
giving the user ultimately better response times, tracking and the
ability to be used on even more surfaces

Optical Mouse Process

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