Mirror objective and optical arrangement comprising two mirror o

Details Mirror objective and optical arrangement comprising two mirror o Mirror objective and optical arrangement comprising two mirror o

1987-10-28

1989-09-19

Arnold, Bruce Y.

G02B 1700

Patent

active

048675474

ABSTRACT:
A primary mirror and a secondary mirror are arranged on a lens to form an eccentric radiation path through the mirror objective. The optical axis of the mirror objective follows an N-shaped path through the objective and central diaphragming is avoided. The object and consequently the image are situated outside the geometrical axis of the mirror objective, which shows a short distance between the object and the image. In an optical arrangement comprising two such mirror objectives, one is used for illuminating and the other is used for imaging.

REFERENCES:
patent: 2378301 (1945-06-01), Kaprelian
patent: 3930728 (1976-01-01), Pieuchard et al.
patent: 4226500 (1980-10-01), Minoura et al.

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