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Optical Mouse
An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface. Variations of the optical mouse have largely replaced the older mechanical mouse design, which uses moving parts to sense motion. The earliest optical mice detected movement on pre-printed mousepad surfaces. Modern optical mice work on most opaque diffusely reflective surfaces like paper, but most of them do not work properly on specularly reflective surfaces like polished stone or transparent surfaces like glass. Optical mice that use dark field illumination can function reliably even on such surfaces. Mechanical mice Though not commonly referred to as optical mice, nearly all mechanical mice tracked movement using LEDs and photodiodes to detect when beams of infrared light did and didn't pass through holes in a pair of incremental rotary encoder wheels (one for left/rig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MOS Integrated Circuit
upright=1.6, gate (G), body (B), source (S), and drain (D) terminals. The gate is separated from the body by an gate oxide">insulating layer (pink). The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET), also known as the metal–oxide–silicon transistor (MOS transistor, or MOS), is a type of insulated-gate field-effect transistor (IGFET) that is fabricated by the controlled oxidation of a semiconductor, typically silicon. The voltage of the covered gate determines the electrical conductivity of the device; this ability to change conductivity with the amount of applied voltage can be used for amplifying or switching electronic signals. The MOSFET is the basic building block of most modern electronics, and the most frequently manufactured device in history, with an estimated total of 13sextillion (1.3 × 1022) MOSFETs manufactured between 1960 and 2018. It is the most common semiconductor device in digital and analog circuits, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Flow
Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an observer and a scene. Optical flow can also be defined as the distribution of apparent velocities of movement of brightness pattern in an image. The concept of optical flow was introduced by the American psychologist James J. Gibson in the 1940s to describe the visual stimulus provided to animals moving through the world. Gibson stressed the importance of optic flow for affordance perception, the ability to discern possibilities for action within the environment. Followers of Gibson and his ecological approach to psychology have further demonstrated the role of the optical flow stimulus for the perception of movement by the observer in the world; perception of the shape, distance and movement of objects in the world; and the control of locomotion. The term optical flow is also used by roboticists, encompassing related techn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formica (plastic)
Formica Laminate is a laminated composite material invented at the Westinghouse Electric Corporation in the United States in 1912. Originally used to replace mica in electrical applications, it has since been manufactured for multiple applications. It has been produced by Formica Group manufacturing sites across the globe since. Formica Group are best known for the company's classic product: a heat-resistant, wipe-clean laminate of paper or textile with melamine resin. Formica Group, a division of the Dutch company Broadview Holdings, consists of Formica Canada, Inc., Formica Corporation, Formica de Mexico S.A. de C.V., Formica IKI Oy, Formica Limited, Formica S.A., Formica S.A.S., Formica Taiwan Corporation, Formica (Thailand) Co., Ltd., Formica (Asia) Ltd., and others. Etymology The mineral mica was commonly used at that time for electrical insulation. Because the new product acted as a substitute "for mica", Faber used the name ''Formica'' as a trademark. The word alr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Image Correlation
Digital image correlation and tracking is an optical method that employs tracking and image registration techniques for accurate 2D and 3D measurements of changes in images. This method is often used to measure full-field displacement and strains, and it is widely applied in many areas of science and engineering. Compared to strain gages and extensometers, the amount of information gathered about the fine details of deformation during mechanical tests is increased due to the ability to provide both local and average data using digital image correlation. Overview Digital image correlation (DIC) techniques have been increasing in popularity, especially imicro- and nano-scale mechanical testingapplications due to its relative ease of implementation and use. Advances in computer technology and digital cameras have been the enabling technologies for this method and while white-light optics has been the predominant approach, DIC can be and has been extended to almost any imaging tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S5085 Optical Mouse IC
S5 or S-5 may refer to: Science * Pentasulfur (S5), an allotrope of sulfur * S5, the symmetric group on five elements * S5: Keep contents under ... (appropriate liquid to be specified by the manufacturer), a safety phrase in chemistry * Sacral spinal nerve 5, a spinal nerve of the sacral segment * S5, the fifth sacral vertebra of the vertebral column, in human anatomy Technology Electronics * Canon PowerShot S5 IS, a 2007 8.0 megapixel bridge digital camera * Coolpix S5, a 6 Megapixels Nikon Coolpix series digital camera * FinePix S5 Pro, a 2006 digital single lens reflex camera by Fujifilm * Samsung Galaxy S5, an Android smartphone by Samsung * Samsung Galaxy Tab S5e, an Android tablet * Simatic S5 PLC, a programmable logic controller family by Siemens Software * S5 (file format), for defining slideshows * ACPI S5 power state, of the Advanced Configuration and Power Interface in computing Transportation Airlines and airports * Shuttle America (IATA airline code: S5) * Trast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agilent Technologies
Agilent Technologies, Inc. is an American life sciences company that provides instruments, software, services, and consumables for the entire laboratory workflow. Its global headquarters is located in Santa Clara, California. Agilent was established in 1999 as a spin-off from Hewlett-Packard. The resulting IPO of Agilent stock was the largest in the history of Silicon Valley at the time. Agilent focuses its products and services on six markets: food, environmental and forensics, pharmaceutical, diagnostics, chemicals and advanced materials, and research. From 1999 to 2014, the company also produced test and measurement equipment for electronics; that division was spun off to form Keysight. Products and services Agilent serves analytical laboratories and the clinical and routine diagnostics markets with a full suite of technology platforms. These include: automation, bioreagents, FISH probes, gas and liquid chromatography, immunohistochemistry, informatics, mass spectrometry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft IntelliMouse
IntelliMouse is a series of computer mice from Microsoft. The IntelliMouse series is credited with a number of innovations; Microsoft was among the first mouse vendors to introduce a scroll wheel, an optical mouse, and dedicated auxiliary buttons on the side of the mouse. They use IntelliPoint drivers and its main competitor through the years has been Logitech. History The original IntelliMouse was introduced on July 22, 1996, with its stand-out feature being a scroll wheel. Its design was based on that of the Microsoft Mouse 2.0 from 1993. In November 1997 Microsoft released the IntelliMouse TrackBall, using a finger-operated trackball to control the cursor and featuring the signature IntelliMouse scroll wheel. In May 1998 the IntelliMouse Pro was released, a redesign of the original IntelliMouse that featured an asymmetrical shape (intended for right-hand use) with a more pronounced arch profile. The IntelliMouse Explorer was introduced on April 19, 1999, at COMDEX. This vers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Circuit
An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of tiny MOSFETs (metal–oxide–semiconductor field-effect transistors) integrate into a small chip. This results in circuits that are orders of magnitude smaller, faster, and less expensive than those constructed of discrete electronic components. The IC's mass production capability, reliability, and building-block approach to integrated circuit design has ensured the rapid adoption of standardized ICs in place of designs using discrete transistors. ICs are now used in virtually all electronic equipment and have revolutionized the world of electronics. Computers, mobile phones and other home appliances are now inextricable parts of the structure of modern societies, made possible by the small size and low cost of ICs such as modern compute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Processing
An image is a visual representation of something. It can be two-dimensional, three-dimensional, or somehow otherwise feed into the visual system to convey information. An image can be an artifact, such as a photograph or other two-dimensional picture, that resembles a subject. In the context of signal processing, an image is a distributed amplitude of color(s). In optics, the term “image” may refer specifically to a 2D image. An image does not have to use the entire visual system to be a visual representation. A popular example of this is of a greyscale image, which uses the visual system's sensitivity to brightness across all wavelengths, without taking into account different colors. A black and white visual representation of something is still an image, even though it does not make full use of the visual system's capabilities. Images are typically still, but in some cases can be moving or animated. Characteristics Images may be two or three-dimensional, such as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensor
A sensor is a device that produces an output signal for the purpose of sensing a physical phenomenon. In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends the information to other electronics, frequently a computer processor. Sensors are always used with other electronics. Sensors are used in everyday objects such as touch-sensitive elevator buttons ( tactile sensor) and lamps which dim or brighten by touching the base, and in innumerable applications of which most people are never aware. With advances in micromachinery and easy-to-use microcontroller platforms, the uses of sensors have expanded beyond the traditional fields of temperature, pressure and flow measurement, for example into MARG sensors. Analog sensors such as potentiometers and force-sensing resistors are still widely used. Their applications include manufacturing and machinery, airplanes and aerospace, cars, medicine, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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