Lens with IR-cut function

Details Lens with IR-cut function Lens with IR-cut function

2006-07-25

2009-02-24

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

C359S356000, C359S885000

Reexamination Certificate

active

07495839

ABSTRACT:
A lens (10) and a method for forming the lens (10). The lens (10) including a base (12) with plurality of nano-particles (14) therein. The base (12) is made of glass. The nano-particles (14) can filter infrared rays from incoming light and are evenly distribute throughout the base. The method for forming a lens includes: (1) preparing a glass pre-form (60) with nano-particles (14) for filtrating infrared rays; (2) pressing the glass pre-form (60) using a press mold machine (500) to mold a lens (10).

REFERENCES:
patent: 2006/0068154 (2006-03-01), Parce et al.
patent: 2006/0275596 (2006-12-01), Payne et al.

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