Stereolithographic apparatus and method
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United States of America Patent
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-
Jul 28, 1992
Grant Date -
N/A
app pub date -
Oct 27, 1989
filing date -
Oct 27, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stereolithographic device and method including a process module, a control module and a service module. A laser is employed through a dynamic mirror system controlled by the control module to generate solidified cross sections of a selected part design on the surface of a photocurable polymer liquid. By lowering cured cross sections into the vat, additional cross sections can be perpared and joined therewith to define a prototype product. A stationary mirror in the beam path between the dynamic mirror system and the photocurable polymer is employed to make the system more compact and practical. A calibration and normalization process provides correction to distortions and misalignment of the stationary mirror.
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