Condenser optical system

Details Condenser optical system Condenser optical system

1992-04-22

1993-08-31

Arnold, Bruce Y.

Optical: systems and elements

Mirror

With mirror surface of varied radius

378 82, 378 84, 378145, G02B 508

Patent

active

052414264

ABSTRACT:
A condenser optical system is provided for bringing a beam of light from a light source to a focus at a desired position. The condenser optical system has a reflecting surface including a quadric surface of revolution represented by Equation (1) described below. The reflecting surface satisfies the conditions of Equations (2) and (3) described below when the condenser optical system is disposed so that the light beam from the light source is incident, substantially parallel to a rotary axis of the quadric surface, on the reflecting surface:

REFERENCES:
patent: 2474240 (1949-06-01), Friedman
patent: 2557662 (1951-06-01), Kirkpatrick
patent: 3079501 (1963-02-01), Birks, Jr.
patent: 3821556 (1974-06-01), Hoover
patent: 4370750 (1983-01-01), Hoover
patent: 4562583 (1985-12-01), Hoover et al.
patent: 4941163 (1990-07-01), Hoover

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