Invention Grant
- Patent Title: Imaging lens
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Application No.: US16178208Application Date: 2018-11-01
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Publication No.: US10663695B2Publication Date: 2020-05-26
- Inventor: Koji Nitta
- Applicant: KANTATSU CO., LTD.
- Applicant Address: JP Yaita-shi
- Assignee: KANTATSU CO., LTD.
- Current Assignee: KANTATSU CO., LTD.
- Current Assignee Address: JP Yaita-shi
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2383df69
- Main IPC: G02B9/62
- IPC: G02B9/62 ; G02B13/00

Abstract:
There is provided an imaging lens which satisfies demand of the wide field of view, the low-profileness and the low F-number and has excellent optical performance. An imaging lens comprises, in order from an object side to an image side, a first lens having positive refractive power and a convex surface facing the object side near an optical axis, a second lens having the convex surface facing the object side near the optical axis, a third lens, a fourth lens, a fifth lens, and a sixth lens having negative refractive power and a concave surface facing an image side near the optical axis, wherein the second lens has negative refractive power near the optical axis, the third lens has the negative refractive power near the optical axis, the fourth lens has the positive refractive power near the optical axis, and below conditional expressions are satisfied: −3.00
Public/Granted literature
- US20190310443A1 IMAGING LENS Public/Granted day:2019-10-10
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