Optical module
AssigneeFurukawa Electric Co., Ltd.
InventorsKazuya Nagashima, Atsushi Izawa, Atsushi Kaji, Go Kobayashi
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Abstract
An optical module includes: a casing in which light is propagated; a heating portion; a device arranged inside the casing and configured to change, when heated, characteristics of the light propagated inside the casing; and a first member thermally connected to the heating portion and the device, the first member including a hollow arranged in a heat transfer path from the heating portion to the device and configured to prevent convective heat transmission to an inside of the casing.
Claims24
An optical module comprising:
- a casing in which light is propagated;
- a heating portion;
- a device arranged inside the casing and configured to change, when heated, characteristics of the light propagated inside the casing;
- and
- a first member thermally connected to the heating portion and the device, the first member including
- a hollow arranged in a heat transfer path from the heating portion to the device and configured to prevent convective heat transmission to an inside of the casing, wherein the hollow is a closed space.
An optical module comprising:
- a casing in which light is propagated;
- a heating portion;
- a device arranged inside the casing and configured to change, when heated, characteristics of the light propagated inside the casing;
- and
- a first member thermally connected to the heating portion and the device, the first member including
- a hollow arranged in a heat transfer path from the heating portion to the device and configured to prevent convective heat transmission to an inside of the casing,
- wherein the hollow is located outside the casing.
An optical module comprising:
- a casing in which light is propagated;
- a heating portion;
- a device arranged inside the casing and configured to change, when heated, characteristics of the light propagated inside the casing;
- and
- a first member thermally connected to the heating portion and the device, the first member including
- a hollow arranged in a heat transfer path from the heating portion to the device and configured to prevent convective heat transmission to an inside of the casing,
- wherein the heating portion is located outside the casing.
An optical module comprising:
- a casing in which light is propagated;
- a heating portion;
- a device arranged inside the casing and configured to change, when heated, characteristics of the light propagated inside the casing;
- a first member thermally connected to the heating portion and the device, the first member including a hollow arranged in a heat transfer path from the heating portion to the device and configured to prevent convective heat transmission to an inside of the casing;
- and
- a bonding portion for a plurality of members, the bonding portion being heated at a time of bonding, wherein:
- the bonding portion is arranged outside the casing, and
- the hollow is a closed space and located outside the casing.
An optical module comprising:
- a casing in which light is propagated;
- a heating portion;
- a device arranged inside the casing and configured to change, when heated, characteristics of the light propagated inside the casing;
- and
- a first member provided in contact with an inner surface of the casing and thermally connected to the heating portion and the device, the first member including
- a hollow arranged in a heat transfer path from the heating portion to the device and configured to prevent convective heat transmission to an inside of the casing,
- wherein a heat transfer path is formed from the heating portion to the device via the casing and the first member, and the hollow extends from the first member to the casing and is opened to an outside of the casing so as to suppress heat transfer from the heating portion to the device.
Dependencies are inferred from the claim text.