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US 2021/0230046 A1Published application
Optical cap component
AssigneeNippon Electric Glass Co., Ltd.
InventorsYoshimasa MATSUSHITA, Fumio SATO
Life of this patent
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Abstract
Provided is an optical cap component that can give good sensitivity to an infrared light absorption-based optical gas sensor. An optical cap component includes: a window member formed of a lens-shaped infrared transmitting glass; and a cap member including a cylindrical sidewall portion having openings on both a distal end side and a base end side, wherein the window member is fixed to cover the opening on the distal end side of the cap member.
Claims11
An optical cap component comprising:
- a window member formed of a lens-shaped infrared transmitting glass;
- and
- a cap member including a cylindrical sidewall portion having openings on both a distal end side and a base end side, wherein
- the window member covers the opening on the distal end side of the cap member,
- the cap member has a higher coefficient of thermal expansion than the window member, and the window member is fixed to the cap member due to a difference in heat shrinkage ratio between the cap member and the window member.
2 more elements
Dependencies are inferred from the claim text.