Invention Grant
- Patent Title: Eyeglass lens
-
Application No.: US17255400Application Date: 2019-06-27
-
Publication No.: US11947191B2Publication Date: 2024-04-02
- Inventor: Hua Qi , Takako Ishizaki , Shigetoshi Kono
- Applicant: HOYA LENS THAILAND LTD.
- Applicant Address: TH Pathumthani
- Assignee: HOYA LENS THAILAND, LTD.
- Current Assignee: HOYA LENS THAILAND, LTD.
- Current Assignee Address: TH Pathumthani
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP 18125122 2018.06.29
- International Application: PCT/JP2019/025615 2019.06.27
- International Announcement: WO2020/004550A 2020.01.02
- Date entered country: 2020-12-22
- Main IPC: G02C7/02
- IPC: G02C7/02 ; G02B1/11 ; G02B1/14

Abstract:
Provided is an eyeglass lens configured to cause rays that have entered from an object-side surface to be emitted from an eyeball-side surface and cause the emitted rays to converge at a predetermined position A. The eyeglass lens includes a lens base material having a plurality of base material convex portions on at least one of the object-side surface and the eyeball-side surface, and the eyeglass lens has a configuration for suppressing stray light rays that do not pass through the vicinity of the predetermined position A or the vicinity of the position B that is closer to the object than the predetermined position A is.
Public/Granted literature
- US20210271112A1 SPECTACLE LENS Public/Granted day:2021-09-02
Information query