Small-sized light source of laser diode modules
AssigneeFurukawa Electric Co., Ltd.
InventorsMasami Ikeda, Kenichi Namba
Life of this patent
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Abstract
A small-sized light source of laser diode modules includes a plurality of coolerless laser diode modules without built-in Peltier devices arranged in a dense cluster, where each module includes a laser diode chip, optical components, a metal substrate with the laser diode chip and the optical components mounted thereon. It further includes a plurality of laser diode modules with a built-in cooler, where each module includes a laser diode chip, optical components, a metal substrate with the laser diode chip and the optical components mounted thereon, and a Peltier device thermally connected to the metal substrate.
Claims12
A small-sized light source of laser diode modules comprising:
- a plurality of coolerless laser diode modules without built-in Peltier devices arranged in a dense cluster;
- a heat spreader thermally connected to each of said plurality of coolerless laser diode modules;
- a thermoelectric element thermally connected to said heat spreader;
- and
- a heat sink thermally connected to said thermoelectric element.
A small-sized light source of laser diode modules, comprising:
- a group of a plurality of coolerless laser diode modules without built-in Peltier devices arranged in a dense cluster, each of said coolerless laser diode module without built-in Peltier device including a laser diode chip, optical components and a metal substrate with said laser diode chip and optical components mounted thereon;
- and
- a group of a plurality of laser diode modules with a built-in cooler, each of said laser diode module with a built-in cooler including a laser diode chip, optical components, a metal substrate with said laser diode chip and said optical components mounted thereon, and a Peltier device thermally connected to said metal substrate.
Dependencies are inferred from the claim text.