Projection system, light source system and light source assembly
US10416440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jun 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B33/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection system, a light source system and a light source assembly. The light source system includes an excitation light source, a wavelength conversion device, a filter device, a drive device and a first optical assembly. The wavelength conversion device includes at least one wavelength conversion region; the filter device is fixed relative to the wavelength conversion device and includes at least one first filter region. The drive device drives the wavelength conversion device and the filter device, so that the wavelength conversion region and the first filter region synchronously move, and the wavelength conversion region is periodically disposed on a propagation path of excitation light, to wavelength-convert the excitation light into the converted light. The first optical assembly guides the converted light into the first filter region; and the first filter region filters the converted light to improve its color purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.