US Patent 7856038 Light-emitting module installing thermo-electric controller

Patent 7856038 was granted and assigned to Sumitomo Electric Industries on December, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Sumitomo Electric Industries

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78560380

Patent Inventor Names

Hirotaka Oomori0

Date of Patent

December 21, 2010

Patent Application Number

117276530

Date Filed

March 27, 2007

Patent Primary Examiner

‌

Tod T Van Roy

Patent abstract

There is provided a light-emitting module which suppresses wavelength drift. A light-emitting module according to the invention includes a stem and a cap fixed to the upper surface of the stem. A thermo-electric cooler is mounted on the stem and a base is mounted on the thermo-electric cooler. A laser diode is mounted on one side of the base. A thermistor that measures the temperature of the laser diode is mounted on another side. The other side includes an overhung portion that blocks radiant heat transmitting from the cap toward the thermistor.

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