Apparatus and method for masking residual visible light from an infrared emission source
US11821598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2022 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light masking system for a vehicle includes: a printed circuit board (PCB); at least one infrared (IR) light source disposed on a first surface of the PCB and configured to emit a first predetermined wavelength range of light; at least one masking light source disposed on the first surface of the PCB proximal to the IR light source and configured to emit a second predetermined wavelength range of light, wherein a portion of the emitted first predetermined wavelength range of light of the IR light source includes visible light; and the emitted second predetermined wavelength range of light of the at least one masking light source masks the emitted visible light from the first predetermined wavelength range of the at least one IR light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.