Title:
光学ガラスおよび光学部品
Document Type and Number:
Japanese Patent JP7371722
Kind Code:
B2
Abstract:
Provided is an optical glass that has a high refractive index and a good light transmittance, exhibits high solubility during continuous melting, and has good manufacturing properties. This optical glass has a refractive index (nd) of 1.64 or more, a P value within the range of 7.0
450×P450+A550×P550+A650×P650+A750×P750) wherein A450, A550, A650and A750are absorbances of the optical glass at wavelengths of 450 nm, 550 nm, 650 nm, and 750 nm when the thickness is 10 mm, and P450, P550, P650and P750are radiances determined according to Planck's radiation law at wavelengths of 450 nm, 550 nm, 650 nm, and 750 nm.
Inventors:
Shinichi Yasuma
Tatsuo Nagashima
Tatsuo Nagashima
Application Number:
JP2022069458A
Publication Date:
October 31, 2023
Filing Date:
April 20, 2022
Export Citation:
Assignee:
AGC Inc.
International Classes:
C03C3/064; C03C3/062; C03C3/068; C03C3/097
Domestic Patent References:
| JP2007169157A | ||||
| JP2006219365A | ||||
| JP2014125408A | ||||
| JP2017105702A | ||||
| JP2017105703A | ||||
| JP2015193515A | ||||
| JP2015193516A |
Foreign References:
| WO2017090645A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Eiko Office
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