Photometer tube for microscopes

Details Photometer tube for microscopes Photometer tube for microscopes

1987-10-19

1988-12-13

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

356218, 356219, 356225, G02B 2118, G01J 142

Patent

active

047906634

ABSTRACT:
A photometer tube for a microscope contains several switchable reflectors (5, 11). By the appropriate use of these, the ray path (c) for the back-illuminated measuring field stop (7) is reflected out of the photometry ray path (b) and is conducted to a second image inlet (32) of a beam splitter prism or prism slide. Various switchable elements (mirrors 5 and 11; stop 4; prism 2/22) in the tube are electrically driven and are centrally actuated from a control unit.

REFERENCES:
patent: 3887283 (1975-06-01), Merstallinger et al.
patent: 4269517 (1981-05-01), Sawamura et al.

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