Title:
光学ガラスおよび光学素子
Document Type and Number:
Japanese Patent JP6825939
Kind Code:
B2
Abstract:
The present invention provides an optical glass and an optical element. In the optical glass, the content of P5+ is 3-45 cation%; the content of Al3+ is 5 to 40 cation%, and includes at least one component selected from the group consisting of Ti4+, Nb5+ and W6+; the total content of Y3+, Gd3+, La3+, Yb3+, Lu3+ and Ba2+ is less than 35 cation%; the content of O2- is 5 to 85 anion%; the content of F- is 15 to 95 anion%; and the molar ratio (O2- / P5+) of the content of O2- with respect to the content of P5+ is more than 3.33.
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Inventors:
Hayato Sasaki
Yuki Shioda
Ikishi Mikio
Yuki Shioda
Ikishi Mikio
Application Number:
JP2017039274A
Publication Date:
February 03, 2021
Filing Date:
March 02, 2017
Export Citation:
Assignee:
HOYA CORPORATION
International Classes:
C03C3/247; G02B1/00
Domestic Patent References:
| JP50050416A | ||||
| JP37008588B1 | ||||
| JP53132014A | ||||
| JP56054249A | ||||
| JP57123842A | ||||
| JP58217451A | ||||
| JP62096346A | ||||
| JP52043852B1 | ||||
| JP54013448B2 | ||||
| JP5208842A | ||||
| JP2005112717A |
Foreign References:
| WO2014065225A1 | ||||
| CN106145668A | ||||
| CN106082644A |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes