Differential interference contrast microscope using non-uniforml

Details Differential interference contrast microscope using non-uniforml Differential interference contrast microscope using non-uniforml

1987-07-30

1989-01-03

Henry, Jon W.

350400, 350405, G02B 2106, G02B 2114, G02B 530

Patent

active

047952466

ABSTRACT:
In a differential interference contrast microscope, including a beam splitter and a compensator beam splitter, each of the beam splitters and the compensator comprise at least one non-uniformly deformed plastic birefringent component exhibiting linearly graded optical retardation between the ordinary and the extraordinary transmitted rays in one direction across the aperture and constant retardation in the orthogonal direction. The splitter and compensator may comprise a single unit for a reflected light microscope.

REFERENCES:
patent: 2924142 (1960-02-01), Nomarski
patent: 3558210 (1971-01-01), Smith
patent: 3904267 (1975-09-01), de Veer
patent: 4111050 (1978-09-01), Waddoops
patent: 4566761 (1986-01-01), Carlsen et al.
patent: 4629637 (1986-12-01), Waldenrath et al.

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