Title:
OPTICAL DEVICE
Document Type and Number:
Japanese Patent JP2003040648
Kind Code:
A
Abstract:
To remove PbO from low melting point glass for environmental protection, and to solve the problems that in a conventional optical device and a holder uses a PbO-B2O3 based low melting point glass, it is difficult to reduce a calcinations temperature to 450°C or less.
The optical device is composed of the optical device 1 and the holder 2 by using the low melting point glass whose lead content is 0.1 mass% or less.
Inventors:
SAKAMOTO MASAHIKO
TAKAGI NOBUYOSHI
NOGAWA KENTA
TAKAGI NOBUYOSHI
NOGAWA KENTA
Application Number:
JP2001229029A
Publication Date:
February 13, 2003
Filing Date:
July 30, 2001
Export Citation:
Assignee:
KYOCERA CORP
International Classes:
G02B7/00; C03C8/08; C03C8/24; C03C27/04; (IPC1-7): C03C8/08; C03C27/04; G02B7/00