Optical shutter device
US6172795A · kind A · utility
20Cited by
32References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1997 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | May 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention pertains to an optical shutter device comprising one or more photon absorbing materials that convert photons to heat in less than 1 nanosecond and one or more thermochromic materials that undergo an increase or decrease in optical density at one or more wavelengths when the thermochromic material is heated from 25.degree. C. to a temperature greater than 100.degree. C. in less than 1 nanosecond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.