Title:
OPTICAL ORGANIC/INORGANIC COMPOSITE MATERIAL AND OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2007/116803
Kind Code:
A1
Abstract:
An optical organic/inorganic composite material which includes a thermoplastic resin and, despite this, is sufficiently improved in the temperature dependence of optical properties and highly transmits even short-wavelength lights having a wavelength around 405 nm; and an optical element comprising the composite material. The optical organic/inorganic composite material is characterized in that when the refractive indices of the thermoplastic resin and the fine inorganic particles are expressed by nm and np, respectively, then the material satisfies the following relationships (1) to (3) and when the refractive-index change with temperature of the optical organic/inorganic composite material is expressed by dnc/dT, then the material satisfies the following relationship (4). 1.5≤nm≤1.7 (1), 1.5≤np≤1.7 (2), |np-nm|≤0.1 (3), 0≤|dnc/dT|≤9.0Œ10-5 (4)
Inventors:
KIKUCHI MASAKO (JP)
WAKAMATSU HIDEAKI (JP)
WAKAMATSU HIDEAKI (JP)
Application Number:
PCT/JP2007/056849
Publication Date:
October 18, 2007
Filing Date:
March 29, 2007
Export Citation:
Assignee:
KONICA MINOLTA OPTO INC (JP)
KIKUCHI MASAKO (JP)
WAKAMATSU HIDEAKI (JP)
KIKUCHI MASAKO (JP)
WAKAMATSU HIDEAKI (JP)
International Classes:
G02B1/04; C08K3/34; C08K9/06; C08L101/00
Foreign References:
| JP2006070069A | 2006-03-16 | |||
| JP2005325349A | 2005-11-24 | |||
| JP2005010756A | 2005-01-13 |
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