Method for manufacturing optical element

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United States of America Patent

PATENT NO 10077202
APP PUB NO 20170081234A1
SERIAL NO

15372340

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for manufacturing an optical element includes heating an optical material up to a first temperature that is higher than a transition point, pressurizing the optical material using a first mold and a second mold that are situated opposite to each other across the optical material, first cooling the optical material down to a second temperature that is higher than a strain point and lower than the first temperature while pressurizing the optical material with a predetermined load using the first mold and the second mold, releasing the predetermined load at a set speed that is higher than or equal to a speed obtained in advance, at which an elastic deformation occurs preferentially over a viscous deformation in the optical material upon releasing a load, and second cooling the optical material down to a third temperature that is lower than the second temperature.

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Patent Owner(s)

  • OLYMPUS CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirose, Ikunori Tokyo, JP 3 1

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