wat is optical mouse?

Answer 1

Optical mice use a laser on the bottom surface to detect motion rather than a captive ball that rolls.

Answer 2

optical mouse

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. Movement is detected by sensing changes in reflected light, rather than by interpreting the motion of a rolling sphere.

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. Some surfaces do not allow the sensor and DSP to function properly because the irregularities are too small to be detected. An example of a poor optical-mousing surface is unfrosted glass.

In practice, an optical mouse does not need cleaning, because it has no moving parts. This all-electronic feature also eliminates mechanical fatigue and failure. If the device is used with the proper surface, sensing is more precise than is possible with any pointing device using the old electromechanical design. This is an asset in graphics applications, and it makes computer operation easier in general.

Answer 3

It's a mouse that doesn't use a roller ball on the bottom to control where the cursor is on the screen. Instead, there is a small red light on the bottom of the mouse that will track where you move it. I find that it is much easier and more accurate to use.

From Wikipedia:
"An optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than moving some of its parts — as in a mechanical mouse."

Answer 4

A mouse (plural mice or mouses) is a computer pointing device; it is designed to detect two-dimensional motion relative to its supporting surface and consists of a small case, to be held under one of the user's hands, and one or more buttons. It sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features can add more control or dimensional input. The mouse's motion typically translates into the motion of a pointer on a display.

An optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than moving some of its parts — as in a mechanical mouse.

Answer 5

Short One: The one's with the orange light instead of the ball in the base.

Long One: An optical mouse uses a light-emitting diode and photodiodes to detect movement relative to the underlying surface, rather than moving some of its parts — as in a mechanical mouse.

Early optical mice, circa 1980, came in two different varieties:

1. Some, such as those invented by Steve Kirsch[10][11] of Mouse Systems Corporation, used an infrared LED and a four-quadrant infrared sensor to detect grid lines printed on a special metallic surface with infrared absorbing ink. Predictive algorithms in the CPU of the mouse calculated the speed and direction over the grid.
2. Others, invented by Richard F. Lyon and sold by Xerox, used a 16-pixel visible-light image sensor with integrated motion detection on the same chip [12] and tracked the motion of light dots in a dark field of a printed paper or similar mouse pad.[13]

These two mouse types had very different behaviors, as the Kirsch mouse used an x-y coordinate system embedded in the pad, and would not work correctly when rotated, while the Lyon mouse used the x-y coordinate system of the mouse body, as mechanical mice do.

As computing power grew cheaper, it became possible to embed more powerful special-purpose image-processing chips in the mouse itself. This advance enabled the mouse to detect relative motion on a wide variety of surfaces, translating the movement of the mouse into the movement of the pointer and eliminating the need for a special mouse-pad. This advance paved the way for widespread adoption of optical mice.

Modern surface-independent optical mice work by using an optoelectronic sensor to take successive pictures of the surface on which the mouse operates. Most of these mice use LEDs to illuminate the surface that is being tracked; LED optical mice are often mislabeled as "laser mice". Changes between one frame and the next are processed by the image processing part of the chip and translated into movement on the two axes using an optical flow estimation algorithm. For example, the Agilent Technologies ADNS-2610 optical mouse sensor processes 1512 frames per second: each frame is a rectangular array of 18×18 pixels, and each pixel can sense 64 different levels of gray.[14]

Optomechanical mice detect movements of the ball optically, giving the precision of optical without the surface compatibility problems, whereas optical mice detect movement relative to the surface by examining the light reflected off it.

Answer 6

Traditional mice have a little ball underneath them that rolls when you move it. Sensors inside the mouse measure how much the ball rolls, and that is how it knows where your moving it.

Optical mice don't have a little ball. They have a light beam. The light beam is bounced off of the surface your moving the mouse on, and a sensor measures the distortion of the light when it returns.

The advantage of optical mice is that there is no cleaning or anything you have to do .

Answer 7

A optical mouse does use a laser and it does not have a ball, but it has a receiver that you plug into you mouse port. you should be able to put that receive at {least} three feet from you mouse.

Answer 8

you're in all probability getting interference from yet another radio controlled gadget. There ought to be a button on the receiver (the bit plugged into your workstation) and a small on on the backside of your mouse. Press the button on the receiver and carry it down for 3 seconds. Then do a similar with the button on the mouse. That commonly forces a channel exchange. you should ought to do it some situations to locate a loose channel.

Answer 9

It's a mouse that doesn't have a ball and rollers in it. It works by looking at the surface to know that it is moving.

Answer 10

convetional mouse used literaly a small ball which used to rotate as mouse was moved the rotation sensed acted as input for cursor.now the same is done using light ,and light sensor as tracking sensor