Aureolegraph
US7693412B2 · kind B2 · utility
1Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Mar 10, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An aureolegraph includes a reflective screen with an aperture therein, a lens for focusing an image onto the screen, an imager for imaging the image on the screen, and a light trap for preventing light passing through the aperture in the screen from passing back out through the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.