Lens and lens assembly including the same
US11762164B2 · kind B2 · utility
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19Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jun 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens includes an optical portion refracting light, a rib extending along a circumference of at least a portion of the optical portion, a first area and a second area of an object-side surface of the rib, wherein the first area has a first surface roughness and the second area has a second surface roughness less rough than the first surface roughness, and a third area and a fourth area of an image-side surface of the rib, wherein the third area has a third surface roughness and the fourth area has a fourth surface roughness less rough than the third surface roughness, wherein the second area includes inclined surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.