Reflecting optical system and optical apparatus

Details Reflecting optical system and optical apparatus Reflecting optical system and optical apparatus

1997-01-28

1999-10-26

Nguyen, Thong

Optical: systems and elements

Lens

With reflecting element

359364, 359633, 359727, G02B 1700, G02B 2714

Patent

active

059738588

ABSTRACT:
The present invention relates to a reflecting optical system, wherein the reflecting optical system comprises a first reflecting surface having a positive power and a second reflecting surface having a negative power, wherein at least one of the surfaces is inclined and the reflecting optical system comprises a substantially afocal optical system of the surfaces.

REFERENCES:
patent: 3152209 (1964-10-01), Cox et al.
patent: 3674334 (1972-07-01), Offner
patent: 4775217 (1988-10-01), Ellis
patent: 5042928 (1991-08-01), Richards
patent: 5063586 (1991-11-01), Jewell et al.
patent: 5093567 (1992-03-01), Staveley
patent: 5485305 (1996-01-01), Johnson
patent: 5600492 (1997-02-01), Tanaka et al.
patent: 5638219 (1997-06-01), Puerta et al.
patent: 5699194 (1997-12-01), Takahashi

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