Reflection and refraction optical system

Details Reflection and refraction optical system Reflection and refraction optical system

1985-12-24

1987-08-11

Henry, Jon W.

350442, G02B 1708

Patent

active

046857770

ABSTRACT:
An off-axis imaging optical system, includes: a first imaging optical system including a reflection optical element and a refraction optical element; a second imaging optical system including a reflection optical element and a refraction optical element, wherein the second imaging optical system is disposed with respect to the first imaging optical system so as to reimage an image formed by the first imaging optical system; wherein one of the first and second imaging optical system has unit magnification or enlarging magnification imaging power, and the other imaging optical system has a reducing magnification imaging power, so as to provide a reducing magnification power as a whole.

REFERENCES:
patent: 3455623 (1969-07-01), Harris
patent: 4293186 (1981-10-01), Offner
patent: 4395095 (1983-07-01), Horton
patent: 4469414 (1984-09-01), Shafer

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