Invention Grant
- Patent Title: Lens for headlamps of vehicles and method of using lens for headlamps of vehicles
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Application No.: US16516335Application Date: 2019-07-19
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Publication No.: US11421847B2Publication Date: 2022-08-23
- Inventor: Kenta Ishii , Norihisa Sakagami , Daisuke Seki
- Applicant: NALUX CO., LTD.
- Applicant Address: JP Osaka
- Assignee: NALUX CO., LTD.
- Current Assignee: NALUX CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Squire Patton Boggs (US) LLP
- Main IPC: G02B27/00
- IPC: G02B27/00 ; F21S41/275
Abstract:
A lens for headlamps of vehicles provided with a diffraction grating on a surface, wherein a phase function of the diffraction grating is represented by ϕ ( r ) = ∑ i = 1 N β 2 i r 2 i where r represents distance from the central axis of the lens, and the relationship |β2|·(0.3R)2
Public/Granted literature
- US20190338908A1 LENS FOR HEADLAMPS OF VEHICLES AND METHOD OF USING LENS FOR HEADLAMPS OF VEHICLES Public/Granted day:2019-11-07
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