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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 Diffuse reflection, diffusely reflective surfaces like paper, but most of them do not work properly on Specular reflection, specularly reflective surfaces like polished stone or transparent surfaces like glass. Optical mice that use Dark field microscopy, 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 pai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steve Kirsch
Steven Todd Kirsch (born 1956 in Los Angeles) is an American entrepreneur. He has started several companies and was one of two independent inventors of the optical mouse. Kirsch has been both a philanthropic supporter of medical research, and a promoter of misinformation about COVID-19 vaccines. Education Kirsch received a Bachelor of Science and a Master of Science in electrical engineering and computer science from the Massachusetts Institute of Technology in 1980. Career In 1980, Kirsch and Richard F. Lyon independently invented the first versions of the optical mouse. Kirsch has started several companies. In 1993, he founded the search engine Infoseek, which in 1999 was sold to the Walt Disney Co. He co-founded Frame Technology Corp., bought by Adobe in 1995. In 2002 he was CEO of Propel Software. In 2005 he founded Abaca, which made a spam filter. In September 2011, he started OneID to create a user-centric Internet-scale digital identity system using publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MOS Integrated Circuit
upright=1.4, gate oxide">insulating layer (pink). The MOSFET (metal–oxide–semiconductor field-effect transistor) 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 13 sextillion (1.3 × 1022) MOSFETs manufactured between 1960 and 2018. It is the most common semiconductor device in digital and analog circuits, and the most common power device. It was the first truly compact transistor that could be miniaturized and mass-produced for a wide range of uses. MOSFET scaling and miniaturization has been driving the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agilent Technologies
Agilent Technologies, Inc. is an American global company headquartered in Santa Clara, California, that provides instruments, software, services, and consumables for laboratories. 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. From 1999 to 2014, the company produced optics (LED, laser), semiconductors, EDA software and test and measurement equipment for electronics; that division was spun off to form Keysight. Since then, the company has continued to expand into pharmaceutical, diagnostics & clinical, and academia & government (research) markets. 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, microarrays, spectroscop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft
Microsoft Corporation is an American multinational corporation and technology company, technology conglomerate headquartered in Redmond, Washington. Founded in 1975, the company became influential in the History of personal computers#The early 1980s and home computers, rise of personal computers through software like Windows, and the company has since expanded to Internet services, cloud computing, video gaming and other fields. Microsoft is the List of the largest software companies, largest software maker, one of the Trillion-dollar company, most valuable public U.S. companies, and one of the List of most valuable brands, most valuable brands globally. Microsoft was founded by Bill Gates and Paul Allen to develop and sell BASIC interpreters for the Altair 8800. It rose to dominate the personal computer operating system market with MS-DOS in the mid-1980s, followed by Windows. During the 41 years from 1980 to 2021 Microsoft released 9 versions of MS-DOS with a median frequen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Circuit
An integrated circuit (IC), also known as a microchip or simply chip, is a set of electronic circuits, consisting of various electronic components (such as transistors, resistors, and capacitors) and their interconnections. These components are etched onto a small, flat piece ("chip") of semiconductor material, usually silicon. Integrated circuits are used in a wide range of electronic devices, including computers, smartphones, and televisions, to perform various functions such as processing and storing information. They have greatly impacted the field of electronics by enabling device miniaturization and enhanced functionality. Integrated circuits are orders of magnitude smaller, faster, and less expensive than those constructed of discrete components, allowing a large transistor count. The IC's mass production capability, reliability, and building-block approach to integrated circuit design have ensured the rapid adoption of standardized ICs in place of designs using discre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Processing
An image or picture is a visual representation. An image can be two-dimensional, such as a drawing, painting, or photograph, or three-dimensional, such as a carving or sculpture. Images may be displayed through other media, including a projection on a surface, activation of electronic signals, or digital displays; they can also be reproduced through mechanical means, such as photography, printmaking, or photocopying. Images can also be animated through digital or physical processes. In the context of signal processing, an image is a distributed amplitude of color(s). In optics, the term ''image'' (or ''optical image'') refers specifically to the reproduction of an object formed by light waves coming from the object. A ''volatile image'' exists or is perceived only for a short period. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode-ray tube. A ''fixed image'', also called a hard copy, is one that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensor
A sensor is often defined as a device that receives and responds to a signal or stimulus. The stimulus is the quantity, property, or condition that is sensed and converted into electrical signal. 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 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optoelectronic
Optoelectronics (or optronics) is the study and application of electronic devices and systems that find, detect and control light, usually considered a sub-field of photonics. In this context, ''light'' often includes invisible forms of radiation such as gamma rays, X-rays, ultraviolet and infrared, in addition to visible light. Optoelectronic devices are electrical-to-optical or optical-to-electrical transducers, or instruments that use such devices in their operation. '' Electro-optics'' is often erroneously used as a synonym, but is a wider branch of physics that concerns all interactions between light and electric fields, regardless of whether they form part of an electronic device. Optoelectronics is based on the quantum mechanical effects of light on electronic materials, especially semiconductors, sometimes in the presence of electric fields. * Photoelectric or photovoltaic effect, used in: ** photodiodes (including solar cells) ** phototransistors ** photomulti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
