06-10-2010, 03:00 PM
Optical mouse
An optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than internal moving parts as does a mechanical mouse. the optical mouse actually uses a tiny camera to take 1,500 pictures every second. A small red red light-emitting diode (LED) is present in the mouse that emits the light which after reflection , falls onto a complimentary metal-oxide semiconductor (CMOS) sensor. This sensor sends this signal to a digital signal processor (DSP). The DSP is able to detect patterns in the images and see how those patterns have moved since the previous image. It thus determines determines how far the mouse has moved from the previous and thus determines the new co-ordinates. The smooth motion is achieved by doing this millions of times a second.
benefits
less wear and a lower chance of failure as there are less moving parts
-tracking sensors are present inside and as a result, does not get affected by dirt
-smoother response can be achieved by increased tracking resolution
-mouse pad is not required.
optical mouse sensor
used to implement a non- mechanical tracking engine for computer mice. It measures changes in position by optically acquiring sequential surface images and determining teh direction of movement mathematically.
for more details, see;
http://computer.howstuffworksquestion6311.htm
http://en.wikipediawiki/Mouse_%28computi...tical_mice
http://scribddoc/25351872/Optical-Mouse-Sensor
An optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than internal moving parts as does a mechanical mouse. the optical mouse actually uses a tiny camera to take 1,500 pictures every second. A small red red light-emitting diode (LED) is present in the mouse that emits the light which after reflection , falls onto a complimentary metal-oxide semiconductor (CMOS) sensor. This sensor sends this signal to a digital signal processor (DSP). The DSP is able to detect patterns in the images and see how those patterns have moved since the previous image. It thus determines determines how far the mouse has moved from the previous and thus determines the new co-ordinates. The smooth motion is achieved by doing this millions of times a second.
benefits
less wear and a lower chance of failure as there are less moving parts
-tracking sensors are present inside and as a result, does not get affected by dirt
-smoother response can be achieved by increased tracking resolution
-mouse pad is not required.
optical mouse sensor
used to implement a non- mechanical tracking engine for computer mice. It measures changes in position by optically acquiring sequential surface images and determining teh direction of movement mathematically.
for more details, see;
http://computer.howstuffworksquestion6311.htm
http://en.wikipediawiki/Mouse_%28computi...tical_mice
http://scribddoc/25351872/Optical-Mouse-Sensor
