Photo-fabrication apparatus

Details Photo-fabrication apparatus Photo-fabrication apparatus

2006-08-01

2006-08-01

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

C425S160000, C264S401000

Reexamination Certificate

active

07083405

ABSTRACT:
A photo-fabrication apparatus comprises a stage for holding a photosensitive member which is a substrate coated with a photosensitive material, a head part for emitting a spatially-modulated light beam to said photosensitive member and a computer. The head part has a DMD having a plurality of micromirrors arranged in a two-dimensional array, and a light beam from a light source is reflected on only some of the group of micromirrors in the DMD which have a predetermined tilt angle and led onto the photosensitive member. In the photo-fabrication apparatus, the tilt angle of each micromirror in the DMD is controlled by the computer. This can control the quantity of irradiation light for an irradiation region on the photosensitive member corresponding to each micromirror, to perform an exposure in accordance with a three-dimensional shape of a desired object for a short time. The exposed photosensitive member is developed by another apparatus.

REFERENCES:
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patent: 5172262 (1992-12-01), Hornbeck
patent: 6051179 (2000-04-01), Hagenau
patent: 6500378 (2002-12-01), Smith
patent: 6738104 (2004-05-01), Marshall
patent: 2002/0164069 (2002-11-01), Nagano et al.
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patent: 2002-316363 (2002-10-01), None
patent: 2003-66249 (2003-03-01), None
patent: 2003-340923 (2003-12-01), None
patent: WO 98/06560 (1998-02-01), None

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