Apparatus for changing illumination optics of a microscope

Details Apparatus for changing illumination optics of a microscope Apparatus for changing illumination optics of a microscope

1981-03-05

1983-05-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

350526, G01J 132

Patent

active

043842003

ABSTRACT:
An apparatus for changing illumination optics is provided for use in a microscope including a plurality of illumination optics having different values of magnification. A photometric, light receiving element is disposed in a marginal area of an imaging surface of an objective lens, and an output from the photometric element is determined as the illumination optics are sequentially changed. A matching condition between the objective lens and the illumination optics is detected in accordance with the value determined, and that one of illumination optics is selected which represents the best match.

REFERENCES:
patent: 4163150 (1979-07-01), Stankewitz
patent: 4241251 (1980-12-01), Yonekubo

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