| 摘要 |
PROBLEM TO BE SOLVED: To cut off the propagation of radiant heat from an object to a sensor body. SOLUTION: A laser sensor device is provided with the sensor body 50, an inner casing 16 in which a first transmission part 90 for permitting the transmission of a laser beam 52 irradiated at the object 62 from the sensor body 50 is installed, an outer casing 12 which is situated on the same optical axis as the part 90, and in which a second transmission part 80 for permitting the transmission of the laser beam 52 is installed, and a first cooling device 20 used to supply cool air to a space part 18 partitioned and formed between the inside casing 16 and the outer casing 12. COPYRIGHT: (C)2004,JPO
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