Optical shutter
US4549787A · kind A · utility
7Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1984 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Jan 12, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A shutter mechanism for employment in an ophthalmic laser treatment system mounts between the binoculars and a slit lamp or operating microscope. The shutter mechanism provides a filter movable into the optical viewing path when the laser is under selected power during treatment to prevent damage to the operator's eyes from the laser beam and uncovers the viewing paths when said treatment site is being viewed in conjunction with laser beam alignment and similar pre-operational procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.