| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high temperature atmosphere furnace observation device having a compact structure, capable of suppressing a problem wherein gas including dust inside a furnace is caught in inside of the observation device and scars are generated on a lens, a reflecting plate or an opening part, and improving a problem of moisture condensation. <P>SOLUTION: In the high temperature atmosphere furnace observation device, the state inside the high temperature atmosphere furnace is imaged by a cylindrical imaging part inserted into the high temperature atmosphere furnace. A camera body part is incorporated into an approximately tubular camera housing having opened both ends, and cooling gas is supplied from a base end side of the camera housing to cool the camera body part. The cooling gas is discharged from a tip of the camera housing. A gas release port is provided near the tip of the camera housing to discharge part of the cooling gas to outside of the camera housing. The part of cooling gas is merged with the cooling gas discharged from the tip of the camera housing and is emitted to outside of the imaging part. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
