Optical system for an image acquisition device
US10467469B2 · kind B2 · utility
3Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Mar 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B17/0856
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical system for an image acquisition device comprises an image sensor comprising an array of pixels including pixels sensitive to IR wavelengths for acquiring an image. A lens assembly includes a collecting lens surface with an optical axis, the lens assembly being arranged to focus IR light received from a given object distance on the sensor surface. The lens assembly includes at least a first reflective surface for reflecting collected light along an axis transverse to the optical axis so that a length of the optical system along the optical axis is reduced by comparison to a focal length of the lens assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.