Microscope autofocus system

Details Microscope autofocus system Microscope autofocus system

1985-11-25

1987-08-18

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

350527, G01J 120, G02B 2106

Patent

active

046879137

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.

REFERENCES:
patent: 3721827 (1973-03-01), Reinheimer
patent: 4406526 (1983-09-01), Smith
patent: 4447717 (1984-05-01), Nohda

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