Axial refractive index distributed lens

Details Axial refractive index distributed lens Axial refractive index distributed lens

1998-11-17

2000-05-23

Tucker, Philip

Compositions

Light transmission modifying compositions

Producing polarized light

252584, 65 3013, 359653, F21V 914, C03C 1500, G02B 300

Patent

active

060662735

ABSTRACT:
An excellent axial refractive index distributed lens is disclosed, which has a refractive index distribution required for an optical design, high durability, and high quality (a low melting temperature) and is obtained, by an ion exchange method using silver, from a glass material having the following composition:

REFERENCES:
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patent: 4902330 (1990-02-01), Sakai et al.
patent: 4952037 (1990-08-01), Oikawa et al.
patent: 4971423 (1990-11-01), Nakata et al.
patent: 5004707 (1991-04-01), Ross et al.
patent: 5139557 (1992-08-01), Kittaka et al.
patent: 5837023 (1998-11-01), Koike et al.

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