Method and apparatus for continuous hardening of light-curing resins
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United States of America Patent
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Aug 4, 1992
Grant Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Sep 1, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method to continuousky harden light-curable resins, by irradiating at least one shaped article made of a light-curable resin by continuously moving the article past a multiplicity of light sources while changing the flux of the irradiated light in multiple steps corresponding to the moving positions of the object and an apparatus to accomplish this method including means to continuously move the article relative to the multiple irradiation sources and means to adjust the flux density in multiple steps corresponding to the moving positions of the article. Specifically, the flux density of the light irradiated on the moving article is changed stepwide depending upon the position and the location of the article and the polymerization speed of the article and the hardening depth can be controlled in relation to its position and time.
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