However, they generally cannot track on glossy and transparent surfaces, including some mouse-pads, causing the cursor to drift unpredictably during operation. The Mouse that Rolled”. Optical mice that use dark field illumination can function reliably even on such surfaces. Depending on how fast the mouse is moving, each image will be offset from the previous one by a fraction of a pixel or as many as several pixels. Because optical mice render movement based on an image which the LED or infrared diode illuminates , use with multicolored mouse pads may result in unreliable performance; however, laser mice do not suffer these problems and will track on such surfaces. The development of the modern optical mouse at Hewlett-Packard Co.
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Optical mouse – Wikipedia
Movement can be detected in any of these states; some mice turn the comah fully off in the sleep state, requiring a button click to wake. To do this, the mouse dims or blinks the laser or LED when in standby mode each mouse has a different standby time. Archived March 3,at the Wayback Machine. Smith, and Barclay J. Mice designed for use where low latency and high responsiveness are important, such as in opticla video gamesmay omit power-saving features and require a wired connection to improve performance.
Patent 4, Optical Translator Device. A Photographic History of the Integrated Circuit.
The first two optical mice, first demonstrated by two independent inventors in Decemberhad different basic designs: Cherry of the Xerox Microelectronics Center. Retrieved from ” https: This advance enabled the mouse to detect relative motion on a wide otical of surfaces, translating the movement of the mouse into the movement of the cursor and eliminating the need for a special mouse-pad. The Mouse that Rolled”. Images of these surfaces are captured in continuous succession and compared with each other to determine how far the mouse has moved.
Lyon of Xerox, used a pixel visible-light image sensor with integrated motion detection on the same chip   and tracked the motion of light dots in a dark field of a printed paper or similar mouse pad.
Views Read Edit View history. An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode LEDand a light detector, such as an array of photodiodesto detect movement relative to a muse.
Tullis, where surface feature image sensing, image processing, and image correlation was realized by an integrated circuit to produce a position measurement.
This mouse uses a small infrared laser instead of an LED and has significantly increased the resolution of the image taken by the mouse. Retrieved 31 December The amount that the edges of one photograph overhang the other represents the offset between the images, and in the case of an optical computer mouse the distance opticl has moved.
The Impact of Innovation. Unlike mechanical mice, whose tracking mechanisms can become clogged with lint, optical mice have no moving parts besides buttons and scroll wheels ; therefore, they do not require maintenance other than removing debris that might collect under the light emitter.
To understand how optical flow is used in optical mice, imagine two photographs of the same object except slightly offset from each other.
The technology underlying the modern optical computer mouse is known as digital image correlationa technology pioneered by the defense industry for tracking military targets. Examples of mice which sacrifice power-saving in favor of performance are the Logitech G5 and the Razer Copperhead. By describing an optical means that explicitly overcame the limitations of wheels, balls, and rollers used in contemporary computer mice, the optical mouse was anticipated.
Optical mice capture mouwe thousand successive images or more per second. Williams and Robert S.
From Wikipedia, the free encyclopedia. One refinement would be accelerating the correlation process by using information from previous motions, and another refinement would be preventing deadbands when moving slowly by adding interpolation or frame-skipping.
The development of the modern optical mouse at Hewlett-Packard Co. While the reconstruction of the image in the document scanning application Allen et al. Computer mice History of human—computer interaction Video game control methods American inventions.