Title:
結晶化ガラス及びその製造方法
Document Type and Number:
Japanese Patent JP7339667
Kind Code:
B2
Abstract:
To provide a raw material having transparency, containing a phosphor material showing sharp emission in a wavelength region of deep red color by visible light excitation.SOLUTION: Crystallized glass contains a component group having a predetermined composition, in the oxide terms, of Li2O, Na2O, K2O, ZnO, MgO, CaO, GeO2, SiO2, Al2O3, ZrO2, P2O5 and Ga2O3, the molar ratio (X) represented by a predetermined expression of 0.075 or larger and 0.310 or smaller, the molar ratio (Y) represented by the predetermined expression of 0.034 or larger and 0.170 or smaller and containing a predetermined amount of manganese, in which the crystallized glass has a Mn4+ doped Li2Ge4O9 crystal and/or a LiNaGe4O9 crystal, and has light transmittance of wavelength 700 nm at a thickness 10 mm of 60% or larger.SELECTED DRAWING: Figure 4
Inventors:
Goro Aso
Application Number:
JP2020056448A
Publication Date:
September 06, 2023
Filing Date:
March 26, 2020
Export Citation:
Assignee:
Sumita Optical Glass Co., Ltd.
International Classes:
C03C10/02; C01G17/00; C03B32/02; C03C4/12; C09K11/66; C09K11/67; C09K11/71
Domestic Patent References:
| JP59039744A | ||||
| JP2007039303A | ||||
| JP11322359A |
Other References:
星野愛信,外3名,”Mn添加Li2O-ZnO-GeO2系ガラスの結晶化時間による発光色の変化”,第75回応用物理学会学術講演会講演予稿集,日本,応用物理学会,2014年09月01日,2014年秋,16-018,18p-A26-9
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Koji Kakinuma
Mitsutsugu Sugimura
Koji Kakinuma