Recorders – Record receiver deforming
Patent
1989-06-16
1991-06-25
Sugarman, Scott J.
Recorders
Record receiver deforming
346 77R, 346160, 350360, 365126, G11C 1304
Patent
active
050261460
ABSTRACT:
A system for rapidly producing a plastic part from a curable liquid which solidifies when subjected to ultra-violet light energy operates with a processor and computer aided design software. The system includes a receptacle and a moving mechanism which is electrically coupled to the processor. The receptacle stores the curable liquid part of which lies in a solidification plane. The system also includes an electronically erasable mask, a drawing device and a projecting system all of which are electrically coupled to the processor. The electronically erasable mask is an ultra-violet wavelength isolating image buffer. The drawing device may be a back lighted liquid crystal display or a high resolution cathode ray tube or an infrared diode laser raster scanner and electronically draws a plurality of images of successive cross-sectional laminae onto the electronically erasable mask. The projecting system projects ultra-violet light energy onto the electronically erasable mask so that the electronically erasable mask transfers frame-by-frame exposure of the plurality of images in order to reflect the ultra-violet light energy onto the curable liquid in the solidification plane thereby forming the successive cross-sectional laminae. The moving mechanism incrementally moves the cross-section laminae which are being formed in order to build up the plastic part in stepwise fashion.
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Hug William F.
Reid Ray D.
Johansen W. Edward
Lerner Martin
Sugarman Scott J.
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