Uniform light generating system for testing an image-sensing device and method of using the same
US7898663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | May 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A uniform light generating system for testing an image-sensing device includes a light-generating unit, a light-transmitting unit, a light-diffusing unit, and a lens unit. The light-generating unit has a substrate and a plurality of light-emitting elements electrically disposed on the substrate. The light-transmitting unit has one side communicated with the light-generating unit for receiving and uniformizing light beams projected from the light-emitting elements. The light-diffusing unit has one side disposed on the other side of the light-transmitting unit for receiving and diffusing the light beams that have passed through the light-transmitting unit. The lens unit is disposed on the other side of the light-diffusing unit for transmitting the light beams that have passed through the light-diffusing unit to the image-sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.