Bright field-dark field illumination system

Details Bright field-dark field illumination system Bright field-dark field illumination system

1978-10-16

1980-11-11

Corbin, John K.

G02B 2106

Patent

active

042329370

ABSTRACT:
An illumination system for bright field/dark field microscopy has a swinging deflector which is normally positioned on the optical axis when bright field microscopy is used and which is swung off the optical axis when dark field microscopy is used. When the deflector is swung off the optical axis an alternate illumination axis is utilized to provide a reduced portion of the observation axis having coaxial counterflowing light passing there along.

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