Optical device, lighting apparatus, measuring apparatus, part-inspecting apparatus, robot, electronic device, and movable object
US11581698B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Feb 16, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/176
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical device includes: a substrate having a first surface, and a second surface opposite of the first surface; a plurality of surface emitting laser elements provided on the first surface of the substrate and configured to emit light in a direction intersecting the first surface; a plurality of optical elements disposed on the second surface so as to respectively correspond to the plurality of surface emitting laser elements; and an anti-reflection structure between the substrate and the plurality of optical elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.