Photoelectric switching means for microscope illumination system

Details Photoelectric switching means for microscope illumination system Photoelectric switching means for microscope illumination system

Filed on

1978-10-25

Date issued

1980-12-23

Examiner

Nelms, David C.

Patent Class

Radiant energy

SubClass

Photocells; circuits and apparatus

SubSubClass

Photocell controls its own optical systems

Other Related Categories

350 87, G02B 2108

Type

Patent

Status

active

Patent number

042412510

Description

ABSTRACT:
An automatic switching means for microscope illumination system comprising objective lenses having screws which are used for attaching said objective lenses to a revolver and have different lengths depending on magnification levels of the objective lenses and detecting means for detecting the differences of said screws, and being so adapted as to switch an illumination system for a different illuminating condition on the basis of detected length of the screw. Said automatic switching means is so adapted as to assure favorable illuminating condition regardless of setting positions of said objective lenses in the revolver.

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