Light projection structure
US11293623B1 · kind B1 · utility
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1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2021 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jun 10, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/675
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a light projection structure, in which an auxiliary lamp device is disposed on one side of a main lamp device. The main lamp device projects a first light pattern and the auxiliary lamp device projects a second light pattern. The second light pattern includes a gap. The first light pattern projected by the main lamp device is projected onto the gap, so that the main lamp device and the auxiliary lamp device combined can broaden the light projection range, and hence producing more uniform light patterns as well as increasing the light illumination area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.