Illumination apparatus for a motor vehicle
US10386696B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2016 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | May 14, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an illumination apparatus (100), in particular for a motor vehicle, comprising at least one laser light source (10) for producing excitation light, at least one wavelength conversion element (20), which is designed to receive excitation light from the at least one laser light source (10) in the form of an excitation-light light bundle, at least one optical imaging element (30a, 30b, 30c; 31; 32), which images light, which is emitted in the visible wavelength range by the wavelength conversion element (20), in the form of at least one light distribution or one partial light distribution (LVa, LVb, LVc, LVd, LVe), and at least one beam-deflecting device in the beam path between the at least one laser light source (10) and the at least one wavelength conversion element (20). The beam-deflecting device is designed as an acousto-optic modulator (40), which comprises a solid medium (40a), which is optically transparent at least to excitation light of the at least one laser light source (10) and through which the excitation-light light bundle is passed, and wherein a control device (41) is provided, by means of which sound waves having a frequency or a plurality o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.