Illumination assembly, method for providing a radiation...

Details Illumination assembly, method for providing a radiation... Illumination assembly, method for providing a radiation...

2006-10-03

2006-10-03

Rutledge, D. (Department: 2851)

Photocopying

Projection printing and copying cameras

Step and repeat

C355S067000, C355S071000

Reexamination Certificate

active

07116400

ABSTRACT:
The invention relates to an illumination assembly, including a beam expander being arranged for receiving from a radiation source a radiation beam directed in a first direction (z) and for expanding the beam with a first magnification factor in a second direction (x) and with a second magnification factor in a third direction (y). The first, second and third directions being substantially mutually orthogonal. The illumination assembly further includes a beam splitter that is arranged for splitting the radiation beam in two split radiation beams split in at least one of the second and third direction, the propagation direction of the split radiation beams being substantially in the first direction. The beam splitter is further arranged for delivering the split radiation beams to the beam expander, of which at least one of the magnification factors is adjustable.

REFERENCES:
patent: 5138478 (1992-08-01), Ogawa
patent: 5982476 (1999-11-01), Uematsu
patent: 6219179 (2001-04-01), Nielsen et al.
patent: 6249351 (2001-06-01), de Groot
patent: 6597430 (2003-07-01), Nishi et al.
patent: 2002/0109827 (2002-08-01), Nishi
patent: 2004/0263817 (2004-12-01), Tanitsu et al.

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