Ring light illuminator and beam shaper for ring light illuminator
US8807813B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0638
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A ring light illuminator with annularly arranged light sources is disclosed. To each light source there corresponds a beam shaper comprising a light collector, a homogenizing means for light from the light source, and an imaging means for imaging an output of the homogenizing means into an area to be illuminated. The homogenizing means in embodiments is a rod, into which light from the light collector is directed. The end of the rod opposite the light collector is imaged by the imaging means into the area to be illuminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.