Illumination system and projection device
US11874590B2 · kind B2 · utility
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18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | May 4, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/2066
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illumination system including multiple light sources, a first light combining module, a second light combining module, and a converging lens is provided. The light sources respectively provide multiple beams with the same wavelength range. The first light combining module is disposed on a transmission path of a portion of the beams. The second light combining module is disposed on a transmission path of another portion of the beams to combine the beams into an exciting beam. The converging lens is disposed on a transmission path of the exciting beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.