Collimating compound catoptric immersion lens

Details Collimating compound catoptric immersion lens Collimating compound catoptric immersion lens

1986-11-21

1988-09-13

Corbin, John K.

350432, G02B 1702

Patent

active

047705140

ABSTRACT:
The lens includes a transparent body having a central section and a peripheral section. The central section has a surface with a truncated elliptical curvature. The peripheral section has an inner refracting surface and an outer reflecting surface. The inner refracting surface has a diverging truncated conical shape. The outer reflecting surface has a parabolic shape.

REFERENCES:
patent: 2215900 (1940-09-01), Bitner
patent: 3914309 (1975-10-01), Swensen

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