Aperiscope lens,sometimes called afolded lens,is a mechanical assembly oflens elementsthat uses aprismormirrorto redirect the light through the lenses with a 90° angle to theoptical axis,as in aperiscope.[1][2][3][4]
Uses
editThe Kenworthy/Netman Snorkel Camera System, introduced in 1967 by Norman Paul Kenworthy and Bob Nettman, uses periscope lenses to allow filming very smallscale modelsand objects from a very close distance.[5][6]
Smartphones use periscope lenses to allow largerzoomratios without increasing (too much) their thickness.[2]The increased optical zoom range is aimed to improvemacro 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]TheSharp902, released in 2004, is sometimes credited to be the first mobile phone to feature a (2x variable zoom) periscope lens camera.[3]TheAsus ZenFone Zoomsmartphone, released in 2015, used anHoyadual-periscope lens mechanism to achieve a 3x zoom.[3][8][9]In 2019, theHuawei P30 Profeatured a 5x zoom periscope lens.[2]In 2020, theHuawei P40 Pro+introduced a 10x zoom periscope lens camera.[10]
See also
editReferences
edit- ^Samuelson, David (2014-03-26).Hands-on Manual for Cinematographers.CRC Press. p. 208.ISBN978-1-136-04474-8.
- ^abc"What is the Difference Between a Periscope and Telephoto Camera?".XDA Developers.2020-11-27.Retrieved2023-07-20.
- ^abcPeter."Counterclockwise: periscope cameras are old news, optical zoom dates back to 2004".GSMArena.com.Retrieved2023-07-20.
- ^"Galaxy S20 Ultra Shows Off Samsung's Prowess in Mobile Photography".Counterpoint Research.2020-04-10.Retrieved2023-07-31.
- ^"Paul Kenworthy".D23.Retrieved2023-07-20.
- ^"ICG Magazine - May 2018 - The Action Issue by ICG Magazine - Issuu - page 36".issuu.com.2018-05-01.Retrieved2023-07-20.
- ^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.ISSN2072-666X.PMC10305347.PMID37374857.
- ^Asus Zenfone Zoom Review: Optical Zoom! (at 1:09),retrieved2023-07-20
- ^P, Daniel (2015-02-10)."Asus ZenFone Zoom to come with HOYA lens: the world's thinnest optical zoom unit".Phone Arena.Retrieved2023-07-20.
- ^"Huawei P40 Pro+ review".GSMArena.com.Retrieved2023-08-08.
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