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sometimes called a folded lens
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A periscope lens is a mechanical assembly of lens elements that uses a prism or mirror to redirect the light through the lenses with a 90° angle to the optical axis, as in a periscope
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 models and objects from a very close distance.[5][6]
Smartphones use periscope lenses to allow larger zoom ratios without increasing (too much) their thickness.[2] 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.[7] The Sharp 902, released in 2004, is sometimes credited to be the first mobile phone to feature a (2x variable zoom) periscope lens camera.[3] The Asus ZenFone Zoom smartphone, released in 2015, used an Hoya dual-periscope lens mechanism to achieve a 3x zoom.[3][8][9] In 2019, the Huawei P30 Pro featured a 5x zoom periscope lens.[2] In 2020, the Huawei P40 Pro+ introduced a 10x zoom periscope lens camera.[10]
List of longest smartphone telephoto lenses
^ Samuelson, David (2014-03-26). Hands-on Manual for Cinematographers. CRC Press. p. 208. ISBN 978-1-136-04474-8.
^ Jump up to: a b c “What is the Difference Between a Periscope and Telephoto Camera?”. XDA Developers. 2020-11-27. Retrieved 2023-07-20.
^ Jump up to: a b c Peter. “Counterclockwise: periscope cameras are old news, optical zoom dates back to 2004”. GSMArena.com. Retrieved 2023-07-20.
^ “Galaxy S20 Ultra Shows Off Samsung’s Prowess in Mobile Photography”. Counterpoint Research. 2020-04-10. Retrieved 2023-07-31.
^ “Paul Kenworthy”. D23. Retrieved 2023-07-20.
^ “ICG Magazine – May 2018 – The Action Issue by ICG Magazine – Issuu – page 36”. issuu.com. 2018-05-01. Retrieved 2023-07-20.
^ Sun, Wen-Shing; Liu, Yi-Hong; Tien, Chuen-Lin (June 2023). “Optical Design of a Miniaturized 10× Periscope Zoom Lens for Smartphones”. Micromachines. 14 (6): 1272. doi:10.3390/mi14061272. ISSN 2072-666X. PMC 10305347. PMID 37374857.
^ Asus Zenfone Zoom Review: Optical Zoom! (at 1:09), retrieved 2023-07-20
^ P, Daniel (2015-02-10). “Asus ZenFone Zoom to come with HOYA lens: the world’s thinnest optical zoom unit”. Phone Arena. Retrieved 2023-07-20.
^ “Huawei P40 Pro+ review”. GSMArena.com. Retrieved 2023-08-08.
Folded optics
List of longest smartphone telephoto lenses
en.wikipedia.org /wiki/Periscope_lens
Periscope lens
Contributors to Wikimedia projects3-4 minutes 7/20/2023
DOI: 10.3390/mi14061272, Show Details
From Wikipedia, the free encyclopedia
Schematic of a conventional and a periscope zoom lens
A smartphone with a 5x optical zoom periscope lens camera, recognizable by the rectangular shape of its lens
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