Apparatus for optically shaping photo-setting resin

Details Apparatus for optically shaping photo-setting resin Apparatus for optically shaping photo-setting resin

1995-06-07

1996-10-08

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

264401, 359197, 36447424, 395120, 425150, B29C 3508

Patent

active

055629296

ABSTRACT:
A photo-setting resin is shaped into a three-dimensional resin model by scanning successive resin solution layers of a photo-setting resin solution with a radiation beam to form a stack of scanned set layers of photo-setting resin, each of the successive resin solution layers having a shaped region of an isometric section. The radiation beam is scanned along a contour line of the shaped region to set the shaped region along the contour line, and scanned in a raster scanning mode to set the shaped region inwardly of the contour line. Specifically, the radiation beam is scanned along a first line which is spaced a first distance inwardly from the contour line thereby to set the shaped region along the first line, and the radiation beam is scanned inwardly of a second line which is spaced a second distance inwardly from the contour line thereby to set the shaped region inwardly of the second line. The first distance is smaller than the second distance.

REFERENCES:
patent: 4961154 (1990-10-01), Pomerantz et al.
patent: 5058988 (1991-10-01), Spence
patent: 5071337 (1991-12-01), Heller et al.
patent: 5151813 (1992-09-01), Yamamoto et al.
patent: 5253177 (1993-10-01), Saito et al.
patent: 5415820 (1995-05-01), Furuta et al.
patent: 5460758 (1995-10-01), Langer et al.

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