Protecting eyes and instruments from short pulse laser radiation
US6028723A · kind A · utility
8Cited by
7References
29Claims
0Family size
Inventor
Key dates
| Filing date | Oct 22, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Oct 22, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/022
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lens system for protecting high gain optical systems (eyes or equipment) from high intensity laser radiation includes a second mirror disposed on an exit lens, a first mirror formed by half silvering the inner surface of a focusing entry lens, and a medium such as sugar water containing aerosol particles of three-micron carbon, which induces ionization that will absorb the incoming laser radiation. One binocular embodiment uses the foregoing medium; a second binocular embodiment uses a solid lens material laden with aerosol particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.