Illumination optical assembly, exposure apparatus, and device manufacturing method

An illumination optical system can form a pupil intensity distribution with a desired beam profile. The illumination optical system for illuminating an illumination target surface with light from a light source is provided with a spatial light modulator which has a plurality of optical elements arra...

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Bibliographische Detailangaben
Hauptverfasser: Tanaka, Hirohisa, Nakajima, Shinichi, Ooki, Hiroshi
Format: Patent
Sprache:eng
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