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US 10,294,144 B2Granted
Optical glass
AssigneeAGC Inc.
InventorsTatsuo Nagashima, Hiroyasu Miyazawa, Kenji Kitaoka
Life of this patent
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Abstract
There is provided an optical glass having high infrared transmittance and being useful as an on-vehicle infrared sensor and the like. An optical glass including, in expression of atomic %: Ge+Ga; 6% to 30%; S+Se+Te; 50% to 85%; and Ti; 0.001% to 0.5%, wherein a wavelength (λT10%) at a long-wavelength side end in which infrared transmittance in a glass plate of the optical glass converted to a thickness of 1 mm becomes 10% is 12 μm or more.
Claims8
An optical glass comprising, in expression of atomic %:
- Ge+Ga;
- 6% to 30%;
- S+Se+Te;
- 50% to 85%;
- and Ti;
- 0.001% to 0.5%,
- wherein a wavelength (λT10%) at a long-wavelength side end which infrared transmittance through a glass plate converted to a thickness of 1 mm based on the optical glass becomes 10% is 12 μm or more.
4 more elements
Dependencies are inferred from the claim text.