how does a optical mouse works?  

Optical mouse contains LED. 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.

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.
DSP determine the coordinate and send to computer and will show the movement of the mouse.

Answered by Nagendra , an ibibo Master, at 7:52 AM on April 30, 2008

by sencing light

Answered by DRIVE100 SS , an ibibo Citizen, at 6:30 PM on April 23, 2008

Developed by Agilent Technologies and introduced to the world in late 1999, the optical mouse actually uses a tiny camera to take 1,500 pictures every second. Able to work on almost any surface, the mouse has a small, red light-emitting diode (LED) that bounces light off that surface onto a complimentary metal-oxide semiconductor (CMOS) sensor. The CMOS sensor sends each image to a digital signal processor (DSP) for analysis. The DSP, operating at 18 MIPS (million instructions per second), is able to detect patterns in the images and see how those patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer. The computer moves the cursor on the screen based on the coordinates received from the mouse. This happens hundreds of times each second, making the cursor appear to move very smoothly.No moving parts means less wear and a lower chance of failure.
There's no way for dirt to get inside the mouse and interfere with the tracking sensors.
Increased tracking resolution means smoother response.
They don't require a special surface, such as a mouse pad.
Apple has transformed its optical mouse into a modern work of art.Although LED-based optical mice are fairly recent, another type of optical mouse has been around for over a decade. The original optical-mouse technology bounced a focused beam of light off a highly-reflective mouse pad onto a sensor. The mouse pad had a grid of dark lines. Each time the mouse was moved, the beam of light was interrupted by the grid. Whenever the light was interrupted, the sensor sent a signal to the computer and the cursor moved a corresponding amount. This kind of optical mouse was difficult to use, requiring that you hold it at precisely the right angle to ensure that the light beam and sensor aligned. Also, damage to or loss of the mouse pad rendered the mouse useless until a replacement pad was purchased. Today's LED-based optical mice are far more user-friendly and reliable.

Answered by ayisha , an ibibo Master, at 5:50 PM on April 23, 2008

An optical mouse is an advanced computer pointing device that uses a light-emitting diode (LED), an optical sensor, and digital signal processing (DSP) in place of the traditional mouse ball and electromechanical transducer.The optical mouse takes microscopic snapshots of the working surface at a rate of more than 1,000 images per second. If the mouse is moved, the image changes. The tiniest irregularities in the surface can produce images good enough for the sensor and DSP to generate usable movement data. The best surfaces reflect but scatter light; an example is a blank sheet of white drawing paper.

Answered by Kajal Sharma , an ibibo Master, at 5:11 PM on April 23, 2008

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.

Answered by Archit , an ibibo Advisor, at 4:10 PM on April 23, 2008

Optical mice are the de facto standard for mice to communicate between the end user and the computer. The optical mouse is a great improvement over the mechanical mouse that was created in the early 1970's.

The Optical mouse was introduced in 1999 by Agilent Technologies; the technology uses a tiny camera that takes thousands of pictures per second to determine position and speed.

The optical mouse uses a very small light emitting diode more commonly referred to as an LED which is red in color. This LED bounces light off of a mouse pad or desk surface onto a CMOS (Complimentary Metal Oxide Semiconductor).

Answered by RushON , an ibibo Citizen, at 3:34 PM on April 23, 2008

Optical Mice Developed by Agilent Technologies and introduced to the world in late 1999, the optical mouse actually uses a tiny camera to take thousands of pictures every second.

The optical mouse uses a very small light emitting diode more commonly referred to as an LED which is red in color. This LED bounces light off of a mouse pad or desk surface onto a CMOS (Complimentary Metal Oxide Semiconductor).The CMOS sensor sends each image to a digital signal processor (DSP) for analysis. The DSP, operating at 18 MIPS (million instructions per second), is able to detect patterns in the images and see how those patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer. The computer moves the cursor on the screen based on the coordinates received from the mouse. This happens hundreds of times each second, making the cursor appear to move very smoothly.

Answered by Ashish Yadav , an ibibo Wizard, at 2:44 PM on April 23, 2008

Optical mice are the de facto standard for mice to communicate between the end user and the computer. The optical mouse is a great improvement over the mechanical mouse that was created in the early 1970's.

The Optical mouse was introduced in 1999 by Agilent Technologies; the technology uses a tiny camera that takes thousands of pictures per second to determine position and speed.

The optical mouse uses a very small light emitting diode more commonly referred to as an LED which is red in color. This LED bounces light off of a mouse pad or desk surface onto a CMOS (Complimentary Metal Oxide Semiconductor).

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.


and Optical Mice Developed by Agilent Technologies and introduced to the world in late 1999, the optical mouse actually uses a tiny camera to take thousands of pictures every second. Able to work on almost any surface without a mouse pad, most optical mice use a small, red light-emitting diode (LED) that bounces light off that surface onto a complimentary metal-oxide semiconductor (CMOS) sensor. In addition to LEDs, a recent innovation are laser-based optical mice that detect more surface details compared to LED technology. This results in the ability to use a laser-based optical mouse on even more surfaces than an LED mouse.

Here's how the sensor and other parts of an optical mouse work together:

The CMOS sensor sends each image to a digital signal processor (DSP) for analysis. The DSP detects patterns in the images and examines how the patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer. The computer moves the cursor on the screen based on the coordinates received from the mouse. This happens hundreds of times each second, making the cursor appear to move very smoothly.



Optical mice have several benefits over track-ball mice:

No moving parts means less wear and a lower chance of failure. There's no way for dirt to get inside the mouse and interfere with the tracking sensors. Increased tracking resolution means a smoother response. They don't require a special surface, such as a mouse pad.

source

http://wiki.answers.com/Q/ How_does_ an_optical_mouse_work

Answered by Smarty , an ibibo Master, at 2:30 PM on April 23, 2008

rihaana it is simple Optical mice are the de facto standard for mice to communicate between the end user and the computer. The optical mouse is a great improvement over the mechanical mouse that was created in the early 1970's.

The Optical mouse was introduced in 1999 by Agilent Technologies; the technology uses a tiny camera that takes thousands of pictures per second to determine position and speed.

The optical mouse uses a very small light emitting diode more commonly referred to as an LED which is red in color. This LED bounces light off of a mouse pad or desk surface onto a CMOS (Complimentary Metal Oxide Semiconductor).

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.


and Optical Mice Developed by Agilent Technologies and introduced to the world in late 1999, the optical mouse actually uses a tiny camera to take thousands of pictures every second. Able to work on almost any surface without a mouse pad, most optical mice use a small, red light-emitting diode (LED) that bounces light off that surface onto a complimentary metal-oxide semiconductor (CMOS) sensor. In addition to LEDs, a recent innovation are laser-based optical mice that detect more surface details compared to LED technology. This results in the ability to use a laser-based optical mouse on even more surfaces than an LED mouse.

Here's how the sensor and other parts of an optical mouse work together:

The CMOS sensor sends each image to a digital signal processor (DSP) for analysis. The DSP detects patterns in the images and examines how the patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer. The computer moves the cursor on the screen based on the coordinates received from the mouse. This happens hundreds of times each second, making the cursor appear to move very smoothly.



Optical mice have several benefits over track-ball mice:

No moving parts means less wear and a lower chance of failure. There's no way for dirt to get inside the mouse and interfere with the tracking sensors. Increased tracking resolution means a smoother response. They don't require a special surface, such as a mouse pad.
for more inf check source http://wiki.answers.com/Q/How_does_ an_optical_mouse_work

Answered by raj u , an ibibo Master, at 1:15 PM on April 23, 2008

Optical mouse is a pointing device that tracks its location (and the pointer’s location the screen) by using a beam of light, such as a laser, bounced off a reflective surface.

Answered by Nishu's , an ibibo Master, at 11:08 AM on April 23, 2008