Camera with through-the-lens lighting
US6445884B1 · kind B1 · utility
16Cited by
40References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A camera is provided with through the lens lighting. An light source provides boresighted illumination by using a beamsplitter or mirror to illuminate a field of view which is congruent with the field of view of the image sensor of the camera. The light source can be an extended light source having a dimensions about equal to the image sensor. The surface of the image sensor, the light source or the beam splitter can be modulated such that light directly from the light source does not impinge the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.