Very high temperature fiber processing and testing through the use of ultrahigh solar energy concentration

Benjamin A. Jacobson; Philip L. Gleckman; Robert L. Holman; Daniel Sagie; Roland Winston

doi:10.1117/12.49132

24 October 1991 Very high temperature fiber processing and testing through the use of ultrahigh solar energy concentration

Benjamin A. Jacobson, Philip L. Gleckman, Robert L. Holman, Daniel Sagie, Roland Winston

Author Affiliations +

Proceedings Volume 1528, Nonimaging Optics: Maximum Efficiency Light Transfer; (1991) https://doi.org/10.1117/12.49132
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

We have demonstrated the feasibility of a high temperature cool-wall optical furnace that harnesses the unique power of concentrated solar heating for advanced materials processing and testing. Out small-scale test furnace achieved temperatures as high as 2400 C within a 10 mm X 0.44 mm cylindrical hot-zone. Optimum performance and efficiency resulted from an innovative two-stage optical design using a long-focal length, point-focus, conventional primary concentrator and a non-imaging secondary concentrator specifically designed for the cylindrical geometry of the target fiber. A scale-up analysis suggests that even higher temperatures can be achieved over hot zones large enough for practical commercial fiber post- processing and testing.

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Benjamin A. Jacobson, Philip L. Gleckman, Robert L. Holman, Daniel Sagie, and Roland Winston "Very high temperature fiber processing and testing through the use of ultrahigh solar energy concentration", Proc. SPIE 1528, Nonimaging Optics: Maximum Efficiency Light Transfer, (24 October 1991); https://doi.org/10.1117/12.49132

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