Catadioptric optical system

Details Catadioptric optical system Catadioptric optical system

1998-03-31

1999-10-19

Epps, Georgia

Optical: systems and elements

Lens

With reflecting element

359364, 359726, 359727, G02B 1708

Patent

active

059698829

ABSTRACT:
In a catadioptric optical system, the first focusing lens system A includes a concave mirror Mc, and it forms an intermediate image of the first plane R. The second focusing lens system B includes an aperture stop AS, and it forms a refocused image of the intermediate image on the second plane W. A reflecting surface M.sub.P1 is placed so that the light flux leaving the first focusing lens system A is guided to the second focusing lens system B. There are one or more lens surfaces that satisfy the condition

REFERENCES:
patent: 5835284 (1998-11-01), Takahashi et al.

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