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Video Magnifier
Video magnifiers are electronic devices that use a camera and a display screen to perform digital magnification of printed materials. The display screen is usually LCD or a similar flat-screen technology (although older video magnifiers have used CRT displays), and the device usually includes a lamp to illuminate the source material. Video magnifiers are designed to be mostly used by people with low vision that cannot be helped using a conventional magnifying glass. Advantages Magnification range and display size The main benefit of a video magnifier over purely optical magnification is that the video magnifier allows greater magnification across a larger field of view. With optical lenses, the field of meaningful, in-focus view is reduced with increased magnification. Thus, while a "full page magnifier" based on a fresnel lens can span some ( A4), it typically achieves no more than 1.4x magnification (advertised as "2x" if measured by area instead of the scale factor); an asp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josef Tal & Computer Screen , a Japanese manufacturer of musical instruments
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Josef may refer to *Josef (given name) *Josef (surname) * ''Josef'' (film), a 2011 Croatian war film *Musik Josef Musik Josef is a Japanese manufacturer of musical instruments. It was founded by Yukio Nakamura, and is the only company in Japan specializing in producing oboe The oboe ( ) is a type of double reed woodwind instrument. Oboes are usually ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery (electricity)
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode materials are irreversibly changed during discharge; a common example is the alkaline battery used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Television Service Foundation
Taiwan Public Television Service Foundation (PTS Foundation/Public Television Service Foundation, ), also called Public Television Service (PTS, ), is the first independent public broadcasting institution in Taiwan, which broadcasts the Public Television Service Taiwan. Although first proposed in 1980, it was not until 1984 that the executive-level Government Information Office (GIO), which regulates mass media activities and serves as the government press bureau, attempted to create a separate entity that would produce public interest programs for broadcast on the then-existing three terrestrial networks. Nevertheless, the Executive Yuan (one of Taiwan's five branches of government or ''yuans'', and the one responsible for the GIO) later shifted the responsibility to the preexisting Chinese Public Television Broadcasting Development Fund. It was not until the early 1990s, following the lifting of martial law, that legislative efforts striving to create a public television stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fu Jen Catholic University
Fu Jen Catholic University (FJU, FJCU or Fu Jen; or ) is a private Catholic university in Xinzhuang, New Taipei City, Taiwan. The university was founded in 1925 in Beijing at the request of Pope Pius XI and re-established in Taiwan in 1961 at the request of Pope John XXIII, its name means "assistance" and "benevolence". Fu Jen has since grown to comprise twelve colleges and schools, among which are several Taiwan's first or only academic units, such as Italian language, info-management, museology, religious studies, philosophy as well as hosts the earliest A&HCI journal in the whole country. The campus is served by Fu Jen University Station, Taiwan's first metro station named after a university. Fu Jen is the oldest Catholic and Jesuit-affiliated institution of higher education in the Sinophone world, under the direct authority of the Congregation for Catholic Education of the Holy See. It is also a non-state actor of Track II diplomacy in the Holy See–Taiwan relations. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laptop
A laptop, laptop computer, or notebook computer is a small, portable personal computer (PC) with a screen and alphanumeric keyboard. Laptops typically have a clam shell form factor with the screen mounted on the inside of the upper lid and the keyboard on the inside of the lower lid, although 2-in-1 PCs with a detachable keyboard are often marketed as laptops or as having a "laptop mode". Laptops are folded shut for transportation, and thus are suitable for mobile use. They are so named because they can be practically placed on a person's lap when being used. Today, laptops are used in a variety of settings, such as at work, in education, for playing games, web browsing, for personal multimedia, and for general home computer use. As of 2022, in American English, the terms ''laptop computer'' and ''notebook computer'' are used interchangeably; in other dialects of English, one or the other may be preferred. Although the terms ''notebook computers'' or ''notebooks'' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IPad
The iPad is a brand of iOS and iPadOS-based tablet computers that are developed by Apple Inc. The iPad was conceived before the related iPhone but the iPhone was developed and released first. Speculation about the development, operating system, and release of the original iPad began in 2002 prior to its introduction on January 20, 2010. The iPad range consists of the original iPad lineup and the flagship products iPad Mini, iPad Air, and iPad Pro. The iPhone's iOS operating system (OS) was initially used for the iPad but in September 2019, its OS was switched to a fork of iOS called iPadOS that has better support for the device's hardware and its user interface is customized for the tablets' larger screens. The iPad's App Store is subject to application and content approval. Many older devices are susceptible to jailbreaking, which circumvents these restrictions. The original iPad was well-received for its software and was recognized as one of the most-influential inven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tablet Computer
A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package. Tablets, being computers, do what other personal computers do, but lack some input/output (I/O) abilities that others have. Modern tablets largely resemble modern smartphones, the only differences being that tablets are relatively larger than smartphones, with screens or larger, measured diagonally, and may not support access to a cellular network. Unlike laptops which have traditionally run off operating systems usually designed for desktops, tablets usually run mobile operating systems, alongside smartphones. The touchscreen display is operated by Gesture recognition, gestures executed by finger or digital pen (stylus), instead of the Computer mouse, mouse, touchpad, and Keyboard (computing), keyboard of larger computers. Portable computers can be classifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android (operating System)
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008. Most versions of Android are proprietary. The core components are taken from the Android Open Source Project (AOSP), which is free and open-source software (FOSS) primarily licensed under the Apache License. When Android is installed on devices, the ability to modify the otherwise free and open-source software is usually restricted, either by not providing the corresponding source code or by preventing reinstallation through technical measures, thus rendering the installed version proprietary. Most Android devices ship with additional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Foundation For The Blind
The American Foundation for the Blind (AFB) is an American non-profit organization for people with vision loss. AFB's objectives include conducting research to advance change, promoting knowledge and understanding, and shaping policies and practices. Kirk Adams, formerly the first blind president and CEO of The Lighthouse for the Blind, Inc. has been AFB's president and CEO since May 2016. The AFB's main headquarters is in Arlington, Virginia. History AFB, with the support and leadership of M.C. Migel, a philanthropist who was moved to help the large number of veterans blinded in World War I, was formed in 1921 to provide both a national clearing house for information about vision loss and a forum for discussion for blindness service professionals. Its founding, made official at the convention of the American Association of Workers for the Blind in Vinton, Iowa, was also intended to spur research and represent the needs of people with vision loss in the US government. AFB's ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed-circuit Television
Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point (P2P), point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring (Videotelephony is seldom called "CCTV"). Surveillance of the public using CCTV is common in many areas around the world. In recent years, the use of body worn video cameras has been introduced as a new form of surveillance, often used in law enforcement, with cameras located on a police officer's chest or head. Video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mains Electricity
Mains electricity or utility power, power grid, domestic power, and wall power, or in some parts of Canada as hydro, is a general-purpose alternating-current (AC) electric power supply. It is the form of electrical power that is delivered to homes and businesses through the electric grid in many parts of the world. People use this electricity to power everyday items—such as domestic appliances, televisions and lamps—by plugging them into a wall outlet. The voltage and frequency of electric power differs between regions. In much of the world, a voltage (nominally) of 230 volts and frequency of 50 Hz is used. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other combinations exist, for example, 230 V at 60 Hz. Travellers' portable appliances may be inoperative or damaged by foreign electrical supplies. Non-interchangeable plugs and sockets in different regions provide some protection from accidental use of appliances ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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