Ophthalmic surgical laser apparatus
US4517980A · kind A · utility
34Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/2025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic surgical apparatus is disclosed comprising a main laser generator for emitting an operating laser beam of infrared energy and an auxiliary laser generator for emitting a marker laser beam of visible light. The laser beams are superposed before reaching an operating system by a plurality of mirrors and a laser beam expander for each of the laser beams. The laser beam expanders have separate entrance lenses and a common exit lens. Preferably, the operating optical system comprises a focusing lens which doubles as the common exit lens of the laser beam expander.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.