Light-emitting module
US11994660B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Aug 4, 2022 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Feb 9, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0066
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-emitting module (1) includes a light-emitting unit (10) and a rod lens (20). The light-emitting unit (10) outputs a light (11). The rod lens (20) is adjacent to the light-emitting unit (10), and converges the light (11) along an optical axis (100). A radial direction of the rod lens (20) is parallel to the optical axis (100). A distance between an axis (21) of the rod lens (20) and a light-emitting center (12) of the light-emitting unit (10) along the radial direction is greater than or equal to a focal length of the rod lens (20) along the radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.