IR illuminator to avoid camera field-of-view
US10873687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2300/103
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An IR illuminator for providing infrared light for a digital camera having a camera lens with a camera field of view, including at least two mounting substrates arranged adjacent to the digital camera, at least one LED mounted to each of the mounting substrates for radiating the infrared light, and a free form cover lens positioned to cover the at least one LED. The shape of the free form cover lens is such that an emission pattern of light radiation is emitted without entering into the camera lens. Two IR illuminators adjacent to the camera are tilted at an angle from the camera optical direction. The shape of the free form cover lens may be elliptical or toric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.