Microscope autofocus system
US4687913A · kind A · utility
15Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1985 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Nov 25, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/247
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An autofocus mechanism for a microscope comprises an arrangement of optical elements aligned along a single optical path. The arrangement includes a single illumination source which provides both a viewing component and a positioning component. Included in the autofocus arrangement are optical elements to eccentrically reference the positioning component for determining the focus condition of the instrument. The autofocus arrangement also includes a detector for determining the degree of eccentricity of the measuring ray and to make adjustments in the microscope according to this eccentricity to bring the viewed object into focus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.