Temperature controller and light-waveguide with the same
AssigneeNEC Corporation
InventorTakefumi Oguma
Life of this patent
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Abstract
A temperature controller 51 is disclosed, which comprises a temperature control element 53 disposed on the bottom of a case 52, a light-waveguide element 11 and a metal plate 55 intervening between the elements 53 and 11. The metal groove 55 has a groove, in which a temperature sensor 36 is buried together with a highly heat conductive material. The detected temperature output of the temperature sensor 36 is inputted to a temperature control circuit 58 for controlling the temperature of the temperature control element 53. The temperature sensor 36 inclusive of its lead lines are buried in the metal plate 55 such as to cover a long distance. Thus, the temperature control is less subject to the influence of the ambient temperature and can thus be made with high accuracy.
Claims12
A temperature controller comprising a temperature control element serving for heating or cooling, a temperature control subject component which is temperature controlled by the temperature control element and a plate intervening between the temperature controlled subject component and the temperature control element, and a temperature sensing element including a temperature sensing tip for detecting temperature and lead lines led out from the temperature sensing tip,
- wherein the temperature sensing tip is disposed in the plate, and
- wherein the lead lines have portions together with a filler disposed in a bent fashion through a curved space from the position of the temperature sensing tip up to an edge of the plate.
A temperature controller comprising:
- a temperature control element for heating and cooling;
- a temperature control subject component which is temperature controlled by the temperature control element;
- a plate disposed between the temperature control element and the temperature control subject component;
- and
- a temperature sensor element including a temperature sensor portion for sensing a temperature and a lead line provided from the temperature sensor portion;
- wherein the plate is provided with a groove on an opposed surface to the temperature control subject component and the temperature sensor portion, and the lead line is provided between the temperature control subject component and the plate in the groove.
Dependencies are inferred from the claim text.