1984-10-19
1987-08-25
Corbin, John K.
G02B 1708
Patent
active
046889043
ABSTRACT:
A reflecting optical system including a concave mirror and a convex mirror having opposing reflecting surfaces and disposed coaxially with each other. The reflecting optical system is provided with aspherical lens portions disposed between an object field and the concave mirror and between the concave mirror and an image field, respectively, to achieve a wider superior imaging region of arcuate shape.
REFERENCES:
patent: 4293186 (1981-10-01), Offner
Hirose Ryusho
Suzuki Akiyoshi
Canon Kabushiki Kaisha
Corbin John K.
Gass Rebecca D.
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