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Title:
THREE-DIMENSIONAL SHAPE FORMING DEVICE
Document Type and Number:
Japanese Patent JPS61116321
Kind Code:
A
Abstract:

PURPOSE: To simplify a device and to form a three-dimensional shape effectively for a short period by controlling the exposure energy of laser beams irradiated on a liquid light-curing resin material by a photomodulator.

CONSTITUTION: A laser beam 22 radiated from a laser device 21 is modulated up to a prescribed light intensity by the photomodulator 24 on the basis of a three-dimensional shape information pattern signal stored in a signal control circuit 23, and then converted into a proper beam diameter through lenses 26, 27. The converted beam is polarized by a rotary polahedral mirror 28 controlled by a signal control circuit 23, scanned at a constant speed by an fθ lens 29 and then irradiated on a liquid light-curing resin material 32 filling the inside of a resin storing vessel 31. In this case, a supporting board 33 mounting the vessel 31 is also moved on the basis of the three-dimensional shape information pattern signal, so that the resin is selectively exposed and cured also in the depth direction in addition to the surface of the resin material 32.


Inventors:
MORIHARA TAKASHI
ABE FUMITAKA
Application Number:
JP23705684A
Publication Date:
June 03, 1986
Filing Date:
November 09, 1984
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
B29C39/42; B01J19/12; B29C67/00; G03F7/20; (IPC1-7): B29C39/42; G02B27/22; G03F7/20
Attorney, Agent or Firm:
Sadaichi Igita



 
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