Apparatus for measuring anterior eye portion
US5761543A · kind A · utility
10Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Jan 31, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2213/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed an apparatus including an illuminating unit for illuminating an eyeball, a light-receiving unit for receiving light reflected by the eyeball to measure the state of an anterior eye portion, and a holding unit for holding the illuminating unit and the light-receiving unit. The apparatus can be easily assembled, and optical characteristics are properly determined to accurately detect the state of the anterior eye portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.