OPTICAL FILTER, AND DEVICE, HEAT-RAY ABSORBING FILTER, OPTICAL FIBER AND EYE-GLASSES EACH PROVIDED WITH THE OPTICAL FILTER

WIPO Patent Application WO/1999/027397

A1

An optical filter made from a synthetic resin, capable of shielding the light with a wavelength in the near-infrared region efficiently, being lightweight and easy to work by molding, machining, polishing or the like, and being more excellent than conventional optical filters in moisture and water resistances. The optical filter is characterized by comprising a resin component obtained by copolymerizing a mixture of a monomer represented by general formula (a) and a monomer copolymerizable therewith and an ionic metal component mainly containing copper ions. In said formula R represents the group (b) (wherein X represents hydrogen or methyl; p is an integer of 3 to 18; and m is an integer of 1 to 10), and n is 1 or 2.

KATONO HIROKI (JP)
HAYASHI NAOKI (JP)
KOIZUMI TOMOYOSHI (JP)
MACHIDA KATSUICHI (JP)

PCT/JP1998/005201

June 03, 1999

November 19, 1998

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KUREHA CHEMICAL IND CO LTD (JP)
KATONO HIROKI (JP)
HAYASHI NAOKI (JP)
KOIZUMI TOMOYOSHI (JP)
MACHIDA KATSUICHI (JP)

G02C7/10; G02B1/04; G02B5/22; G02B6/00; G03B11/00; H04N5/238; (IPC1-7): G02B5/22; A61L27/00; C08F290/06; C08L43/02; E06B5/00; G02B6/00; G02C7/02; H01L27/14; H04N5/335; H04N5/66

JPS55142045A	1980-11-06
JPS56129243A	1981-10-09
JPS5770146A	1982-04-30
JPH069818A	1994-01-18
JPH1045995A	1998-02-17
JPH10114848A	1998-05-06
JPH10187055A	1998-07-14
JPH10152598A	1998-06-09
JPH10221523A	1998-08-21
JPH06118228A	1994-04-28
JPH0875919A	1996-03-22

Ohi, Masahiko (Kanda Ogawa-machi 3-chome Chiyoda-ku Tokyo, JP)

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