Illumination optical apparatus and optical apparatus

Details Illumination optical apparatus and optical apparatus Illumination optical apparatus and optical apparatus

2006-01-25

2010-06-08

Choi, William C (Department: 2873)

Optical: systems and elements

Lens

With field curvature shaping

C359S385000

Reexamination Certificate

active

07733574

ABSTRACT:
There are provided an illumination optical apparatus and an optical apparatus using this illumination optical apparatus that are capable of efficiently collecting light emitted from a light-emitting section for illumination with less illumination nonuniformity, without having to employ a complicated structure. There are provided a light-emitting sections; a lens system for converting a diverging beam emitted from the light-emitting section into a beam of collimated light; an afocal optical system for adjusting the cross-sectional area of a beam of collimated light obtained by the lens array; a fly-eye lens for forming a plurality of light-source images from the collimated light whose cross-sectional area is adjusted by the afocal optical system; and a Koehler illumination optical system that uses the plurality of light-source images formed by the fly-eye lens as a light source.

REFERENCES:
patent: 4851978 (1989-07-01), Ichihara et al.
patent: 5815248 (1998-09-01), Nishi et al.
patent: 5815249 (1998-09-01), Nishi et al.
patent: 5991009 (1999-11-01), Nishi et al.
patent: 2002/0012164 (2002-01-01), Miyashita
patent: 1 367 442 (2003-12-01), None
patent: 06 349710 (1994-12-01), None
patent: 2003-090959 (2003-03-01), None
patent: 2003-218017 (2003-07-01), None
patent: 2004-253750 (2004-09-01), None

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