Title:
LIGHT TRANSMITTING CERAMICS, METHOD FOR MANUFACTURING THE SAME AND OPTICAL ELEMENT
Document Type and Number:
Japanese Patent JP3882504
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide light-transmitting ceramics excellent in optical characteristics, a method for manufacturing the ceramics, and optical elements.
SOLUTION: A green product is prepared from the source material for the light-transmitting ceramics and a binder. The green product is disposed in the proximity of the same composition system as the light-transmitting ceramics and heated in the atmosphere to the temperature region where the binder is removed. After the material is passed through the above temperature region, the material is calcined while the oxygen concentration in the calcination atmosphere is increased than that of the atmosphere to obtain the paraelectric light- transmitting ceramics having ≥1.9 refractive index.
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Inventors:
Nobuhiko Tanaka
Norio Higuchi
Masaka Katsube
Norio Higuchi
Masaka Katsube
Application Number:
JP2000387730A
Publication Date:
February 21, 2007
Filing Date:
December 20, 2000
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
C04B35/00; G02B1/02; C04B35/46; C04B35/468; C04B35/495; C04B35/636; C04B35/64; G02B3/00; G02B6/12; G02B6/132; H01Q15/02; G02F1/055; (IPC1-7): C04B35/00; C04B35/64; G02B1/02
Domestic Patent References:
| JP62143859A | ||||
| JP2092866A | ||||
| JP5020916A | ||||
| JP11149655A | ||||
| JP62091467A | ||||
| JP7108007A |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office
Kenzo Hara
Kenzo Hara
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