Ophthalmic apparatus
US5562656A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1993 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Jul 12, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00872
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic apparatus for measuring and operating a subject's eye, which includes an ophthalmic operation apparatus, provides an alignment mechanism including a slit image projecting system for projecting an alignment slit image on the subject's eye, a slit image observing system for observing the slit image projected on the subject's eye, wherein a plurality of the slit image projecting system are arranged so as to project the slit image from at least two directions on the subject's eye, the directions putting the optical axis of the slit image observing system therebetween, and an alignment moving device by which an apparatus body including the slit image observing system is moved relatively to the subject's eye in three-dimensional direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.