Radiant energy – Radiant energy generation and sources – With radiation modifying member
Patent
1997-03-21
1999-08-03
Anderson, Bruce
Radiant energy
Radiant energy generation and sources
With radiation modifying member
2504921, G01J 100
Patent
active
059328860
ABSTRACT:
Treating of a workpiece which frequently undergoes heat-induced changes such as deformation, color changes and the like without using a cooling means for the workpiece is achieved by the fact that, of the light which was incident from a rod-shaped lamp on a trough-shaped cold mirror, the ultraviolet light (including some of the visible rays and infrared light) is reflected by the trough-shaped cold mirror and by at least one other cold mirror which is preferably plate-shaped. Furthermore, of the light which was emitted from the rod-shaped lamp and which was incident on the other cold mirror(s), the ultraviolet light (including some of the visible rays and infrared light) is reflected by the other cold mirror(s). The light reflected by the other cold mirrors is incident on the plate-shaped heat refraction filter and some of the visible rays are reflected and are incident on a workpiece. The light emitted by the rod-shaped lamp is not directly radiated onto the workpiece via the heat refraction filter. Therefore, the IR component and the component of the visible rays which are emitted onto the workpiece can be reduced and overheating of the workpiece can be prevented.
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Arai Tetsuji
Moroishi Koutaro
Anderson Bruce
Safran David S.
Ushiodenki Kabushiki Kaisha
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