Enhancement of optical and mechanical properties in a polymeric optical element by annealing under a compressed gas
AssigneeSamsung Electronics Co., Ltd.
InventorsHan Sol Cho, Jin Taek Hwang, Jin Sung Choi, Sung Hen Cho, Young Mok Son, Yong Young Park
Life of this patent
Estimating the term…
Abstract
A method for treating a polymeric optical element which includes the steps of mounting a polymeric optical element into a chamber, injecting a compressed gas as an annealing medium into the chamber and annealing the polymeric optical element and removing the annealing medium from the chamber. The present method provides a new way of preventing disadvantageous molecular orientation and residual stress which causes a deterioration in the optical properties of the polymeric optical element.
Claims10
A method for post-processing of an amorphous, transparent polymeric optical element, which comprises:
- a) mounting an amorphous polymeric optical element into a chamber;
- b) introducing a compressed gas in a supercritical phase or a liquid or vapor phase approaching the supercritical phase as an annealing medium into the chamber and annealing the amorphous polymeric optical element;
- and
- c) removing the annealing medium from the chamber.
Dependencies are inferred from the claim text.