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Title:
THERMOPLASTIC RESIN MATERIAL AND OPTICAL ELEMENT MADE THEREOF
Document Type and Number:
Japanese Patent JP2005325349
Kind Code:
A
Abstract:

To provide a thermoplastic resin material having extremely small refractive index variation with temperature and provide an optical element produced by using the material.

The thermoplastic resin material contains surface-treated inorganic fine particles having an average particle diameter of ≥1 nm and ≤30 nm and dispersed in a host material composed of an organic polymer and has an absolute value of the temperature-dependency of refractive index |dn/dT| satisfying the formula (A): 0≤|dn/dT|≤5.0×10-5.


Inventors:
Taima, Yasuo
Masutomi, Haruhiko
Kojima, Takeshi
Hattori, Hiroyuki
Matagi, Hiroyuki
Fukui, Toshimi
Application Number:
JP2005000119516
Publication Date:
November 24, 2005
Filing Date:
April 18, 2005
Export Citation:
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Assignee:
KONICA MINOLTA OPTO INC
International Classes:
G02B1/04; C08F232/00; C08K9/00; C08L101/00; (IPC1-7): C08L101/00; C08F232/00; C08K9/00; G02B1/04
Domestic Patent References:
JP2002303701A
JP2002196107A
JP2005298717A
JP2005247904A
JPH09176396A
JP2000048608A
JP2002241592A
JPH08157735A
JPH06157892A
JPH05194683A