Optical element and optical apparatus
US11774649B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Apr 22, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Jun 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2005/1804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element includes a glass body including a colored layer provided inside the glass body and positioned at an optical function surface of the optical element. An optical apparatus including the optical element is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.