Phototaking optical system and optical device

Details Phototaking optical system and optical device Phototaking optical system and optical device

1997-01-28

1999-06-29

Sugarman, Scott J.

Optical: systems and elements

Lens

With reflecting element

359633, G02B 2714, G02B 1700

Patent

active

059176628

ABSTRACT:
This invention is directed to a phototaking optical system including a solid optical element having a refraction incident surface on incident surface on which light from an object is incident, a plurality of curved reflection surfaces which sequentially reflect the light from the refraction incident surface, and a refraction exit surface from which the light from the curved reflection surfaces emerges, wherein at least one of the refraction incident surface and the refraction exit surface is a rotation asymmetrical surface.

REFERENCES:
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patent: 5063586 (1991-11-01), Jewell et al.
patent: 5093567 (1992-03-01), Staveley
patent: 5452126 (1995-09-01), Johnson
patent: 5453877 (1995-09-01), Gerbe et al.
patent: 5594588 (1997-01-01), Togino
patent: 5663833 (1997-09-01), Nanba et al.
patent: 5687025 (1997-11-01), Nanba
patent: 5699194 (1997-12-01), Takahashi
patent: 5701202 (1997-12-01), Takahashi
patent: 5726807 (1998-03-01), Nakaoka et al.

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