Incident light illumination instrument for selective light and d

Details Incident light illumination instrument for selective light and d Incident light illumination instrument for selective light and d

1980-06-13

1982-05-11

Henry, Jon W.

350 17, 350266, 350 91, G02B 2110, B02B 700

Patent

active

043290140

ABSTRACT:
An incident light illumination apparatus for generating light and dark field illumination along an optical axis. The illumination apparatus is coupled to a stage arm of a microscope and a microscope tube is coupled to the illumination apparatus.
An illumination stub (7) is located in the illumination apparatus along the optical axis between a light source (8) and an optical deflecting element (11). An aperture (13) passes through the stub from side-to-side for the interchangeable insertion of an insertion module (14,15). This insertion module contains at least two functional groups (I,II; III,II) which can be sequentially placed into the optical axis (9) and the functional groups consist of light attenuating (25) and/or light bounding (19,20,23,24,27) optical components, and additional means (28,29) for pivoting a center stop (30) into the optical axis (9).

REFERENCES:
patent: 3783191 (1974-01-01), Sugimoto et al.
patent: 3930713 (1976-01-01), Stankewitz et al.
patent: 4127318 (1978-11-01), Determann et al.

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