Optical element and manufacturing method of the optical element

Details Optical element and manufacturing method of the optical element Optical element and manufacturing method of the optical element

2006-07-04

2006-07-04

Mack, Ricky L. (Department: 2873)

Optical: systems and elements

Lens

C359S719000, C264S001100, C264S001320, C369S112080, C369S112130, C369S112200

Reexamination Certificate

active

07072118

ABSTRACT:
An optical element having an optical axis, comprises an element body having the maximum first length of 4 mm or less in the optical axis direction and the second maximum length of 6 mm or less in the direction perpendicular to the optical axis direction; wherein the element body is made of a resin containing a polymer having an alicyclic structure and is treated by one of heat treatment and wet-heat treatment for 16 hours or longer at a temperature lower by 35° C. to 45° C. than the glass transition temperature of the resin after the element body has been formed by injecting the resin in a mold, where the glass transition temperature of the resin is measured by differential-scanning-calorimetry method at heating rate 10° C./min on the basis of JIS K7121.

REFERENCES:
patent: 2005/0228579 (2005-10-01), Ohta et al.
patent: 2005/0270958 (2005-12-01), Ikenaka

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