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Patent Searching and Data


Title:
OPTICAL LENS SYSTEM, CAMERA AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/072712
Kind Code:
A1
Abstract:
A six-piece optical lens system comprises, in order from the object side surface (O) to the image side surface (I), a 1st lens element (L1) with a positive refractive power; a 2nd lens element (L2) with a negative refractive power; a 3rd lens element (L3) with a positive refractive power; a 4th lens element (L4) with a negative refractive power; a 5th lens element (L5) with a positive refractive power, having a convex image-side surface (50) in the center; and a 6th lens element (L6). It satisfies the relations: 1.05 < L4ET/L4CT < 2.7 and 0.23 < L6ET/L6CT < 0.95, where L4CT is the center thickness of the 4th lens element (L4), the L4ET is the edge thickness of the 4th lens element (L4), L6CT is the center thickness of the 6th lens element (L6), and L6ET is the edge thickness of the 6th lens element (L6).

Inventors:
YASUHIDE NIHEI (JP)
Application Number:
PCT/CN2019/111741
Publication Date:
April 22, 2021
Filing Date:
October 17, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B9/62
Foreign References:
CN109270665A2019-01-25
CN108152934A2018-06-12
CN109752825A2019-05-14
CN107976786A2018-05-01
CN206930825U2018-01-26
US20060274433A12006-12-07
US20150138425A12015-05-21
JP2015106026A2015-06-08
Other References:
See also references of EP 4031920A4
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