Optical lens and method for manufacturing same
US11960056B2 · kind B2 · utility
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1References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 24, 2019 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | May 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2003/0093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is an optical lens formed by integrally molding a lens part that is an optically effective portion and has a light incidence/emission surface, and a lens edge part that is an optically ineffective portion and has a surface thereof except the light incidence/emission surface. The lens edge part includes a non-transparent region in part or all thereof, the lens part and the lens edge part include a thermoplastic resin, and the non-transparent region in the lens edge part contains a total of 0.1-5 mass % of one or more of a black dye and a black pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.