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Periscope Lens
A periscope lens, sometimes called a folded lens, is a mechanical assembly of Lens (optics), lens elements that uses a Prism (optics), prism or mirror to redirect the light through the lenses with a 90° angle to the optical axis, as in a periscope. Uses The Kenworthy/Netman Snorkel Camera System, introduced in 1967 by Norman Paul Kenworthy and Bob Nettman, uses periscope lenses to allow filming very small Scale model, scale models and objects from a very close distance. Smartphones use periscope lenses to allow larger Zoom lens, zoom ratios without increasing their thickness significantly. The increased optical zoom range is aimed to improve macro photography. With a periscope lens, the zoom lenses are turned by 90° and are aligned along the length or the width of the smartphone instead of its depth. The Sharp Corporation, Sharp 902, released in 2004, is sometimes credited to be the first mobile phone to feature a (2x variable zoom) periscope lens camera. The Asus Zenfone Zoom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periscope Zoom Lens Vs Conventional Zoom Lens In A Smartphone
A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in Armored car (military), armoured vehicles. More complex periscopes using Prism (optics), prisms or advanced Optical fiber, fiber optics instead of mirrors and providing magnification operate on submarines and in various fields of science. The overall design of the classical submarine periscope is very simple: two telescopes pointed into each other. If the two telescopes have different individual magnification, the difference between them causes an overall magnification or reduction. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asus Zenfone Zoom ZX550
Asus ZenFone is a series of Android smartphones designed, marketed and produced by Asus since 2014. Various models are powered by a series of Intel Atom, Qualcomm Snapdragon, and MediaTek processors. Some ZenFone also features the Zen UI user interface. History The first-generation ZenFones were announced at the 2014 Consumer Electronic Show in Las Vegas, Nevada; it uses the same "Zen" moniker originally introduced with the Asus ZenBook laptops. ZenUI interface ASUS ZenUI is a front-end touch interface developed by Asus with partners, featuring a full touch user interface. ZenUI also comes with Asus-made apps preloaded like ZenLink (PC Link, Share Link, Party Link & Remote Link). The ZenUI made its debut in the Asus ZenFone series, Asus Memo Pad 7 (ME176C) and Asus Padfone Mini (2014). Apart from ZenFone, the interface was also used on Asus Pegasus 3, Asus PadFone devices, Asus Memo Pad 7 & 8, Asus Fonepad 7 & 8, Asus Zenpad 10, and Asus Transformer Pad. WaveShar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Film And Video Terminology
A film, also known as a movie or motion picture, is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, emotions, or atmosphere through the use of moving images that are generally, since the 1930s, synchronized with sound and (less commonly) other sensory stimulations. Etymology and alternative terms The name "film" originally referred to the thin layer of photochemical emulsion on the celluloid strip that used to be the actual medium for recording and displaying motion pictures. Many other terms exist for an individual motion-picture, including "picture", "picture show", "moving picture", "photoplay", and "flick". The most common term in the United States is "movie", while in Europe, "film" is preferred. Archaic terms include "animated pictures" and "animated photography". "Flick" is, in general a slang term, first recorded in 1926. It originates in the verb flicker, owing to the flickering appearance of early films ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescopes
A telescope is a device used to observe distant objects by their emission, Absorption (electromagnetic radiation), absorption, or Reflection (physics), reflection of electromagnetic radiation. Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope. Nowadays, the word "telescope" is defined as a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors. The first known practical telescopes were refracting telescopes with glass lenses and were invented in the Netherlands at the beginning of the 17th century. They were used for both terrestrial applications and astronomy. The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. In the 20th century, many new types of telescopes were invented, including radio telescopes in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periscope Lenses
A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in armoured vehicles. More complex periscopes using prisms or advanced fiber optics instead of mirrors and providing magnification operate on submarines and in various fields of science. The overall design of the classical submarine periscope is very simple: two telescopes pointed into each other. If the two telescopes have different individual magnification, the difference between them causes an overall magnification or reduction. Early examples Johannes Hevelius described an early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Longest Smartphone Telephoto Lenses
This is a list of smartphones with a telephoto lens that offers a focal length (35 mm equivalent) of at least 100 mm or "4× optical zoom" with an imaging area equivalent to a 1/3.5″ (inches) or larger sensor. Smartphone lenses are often marketed in terms of "optical zoom" relative to the phone's main camera. For example, 120 mm is usually referred to as "5× optical zoom", because the main camera's focal length is commonly around 24 mm. However, only a few smartphones, such as the Sony Xperia 1 IV and V, include a true zoom lens that offers continuous optical zoom, whereas nearly all smartphones feature a collection of prime lenses interpolated by digital zoom. This is not a list of the "best" smartphone telephoto lenses, because many factors affect image quality. For example, the Samsung Galaxy S22 Ultra's telephoto lens outperforms the S21 Ultra's, despite the S22 Ultra's smaller sensor size and shorter focal length, because of hardware and software improvements. In a f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huawei P40 Pro+
Huawei Technologies Co., Ltd. ("Huawei" sometimes stylized as "HUAWEI"; ; zh, c=华为, p= ) is a Chinese multinational corporationtechnology company in Longgang, Shenzhen, Longgang, Shenzhen, Guangdong. Its main product lines include telecommunications equipment, consumer electronics, electric vehicle self-driving car, autonomous driving systems, and rooftop solar power products. The company was founded in Shenzhen in 1987 by Ren Zhengfei, a veteran officer of the People's Liberation Army (PLA). Initially focused on manufacturing stored program control, phone switches, Huawei has expanded to more than 170 countries to include building telecommunications network infrastructures, providing equipment, operational and consulting services, and manufacturing communications devices for the consumer market. It overtook Ericsson in 2012 as the largest telecommunications equipment manufacturer in the world. Huawei surpassed Apple Inc., Apple and Samsung Electronics, Samsung, in 2018 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huawei P30
Huawei P30 is a line of Android-based smartphones manufactured by Huawei. Unveiled on 26 March 2019, they succeed the Huawei P20 in the company's P series line. Specifications Hardware Their designs are similar to those of the P20. The P30 Pro has a curved screen, and replaces the traditional earpiece speaker with an "electromagnetic levitation" speaker that vibrates the top of the phone's screen, enabling a narrower bezel. The P30 has IP53 water and dustproofing, while the P30 Pro has IP68, but does not include a headphone jack. Both models utilise the Kirin 980 system-on-chip. The devices feature an in-screen optical fingerprint reader, stated to have improved performance over that of the Mate 20 Pro. In September 2019, Huawei unveiled new "Mystic Blue" and "Misty Lavender" color finishes for the P30 Pro, which carry a two-tone appearance using matte and glossy finishes. In May 2020, Huawei announced new 256 GB "New Edition" P30 Pro models for Germany, including a new sil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoya Corporation
is a Japanese company manufacturing optical products such as photomasks, photomask blanks and hard disk drive platters, contact lenses and eyeglass lenses for the health-care market, medical photonics, lasers, photographic filters, medical flexible endoscopy equipment, and software. Hoya Corporation is one of the Forbes Global 2000 Leading Companies and Industry Week 1000 Company. History of Hoya-Pentax merger Hoya discussed a merger with Pentax into Hoya Pentax HD Corporation during 2007. Hoya's primary goal was to strengthen its medical-related business by taking advantage of Pentax's technologies and expertise in the field of endoscopes, intraocular lenses, surgical loupes, biocompatible ceramics, etc. It was speculated that Pentax's camera business could be sold off after the merger. The merger was initially intended to be completed by October 1, 2007. However, Pentax management decided to not pursue the originally planned share swap, and other options for a merger were d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharp Corporation
is a Japanese electronics company. It is headquartered in Sakai, Osaka, and was founded by Tokuji Hayakawa in 1912 in Honjo, Tokyo, and established as the Hayakawa Metal Works Institute in Abeno-ku, Osaka, in 1924. Since 2016, it is majority owned by the Taiwan-based manufacturer Hon Hai Precision Industry Co., Ltd., better known as Foxconn. Sharp makes and has made throughout its history various different Consumer electronics, consumer electronic products, including kitchen appliances such as Microwave oven, microwave ovens, cookers, washing machines and refrigerators; home appliances such as solar cells, vacuum cleaners, Air purifier, air purifiers and lighting; home and office devices such as Printer (computing), printers, Computer monitor, computer displays, Television set, TV sets, camcorders, Videocassette recorder, VCRs, as well as calculators and various audio products such as Radio receiver, radios, Home audio, audio systems and wireless speakers. Sharp's net sales re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macro Photography
Macro photography (or photomacrography or macrography, and sometimes macrophotography) is extreme close-up photography, usually of very small subjects and living organisms like insects, in which the size of the subject in the photograph is greater than life-size (though ''macrophotography'' also refers to the art of making very large photographs). By the original definition, a macro photograph is one in which the size of the subject on the negative or image sensor is life-size or greater. In some senses, however, it refers to a finished photograph of a subject that is greater than life-size. The ratio of the subject size on the film plane (or sensor plane) to the actual subject size is known as the reproduction ratio. Likewise, a macro lens is classically a lens capable of reproduction ratios of at least 1:1, although it often refers to any lens with a large reproduction ratio, despite rarely exceeding 1:1. Apart from technical photography and film-based processes, where th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
