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    Optimal geometry for off-axis, freeform illumination design

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    Author
    Gannon, Caleb
    Affiliation
    Univ Arizona, Coll Opt Sci
    Issue Date
    2018-06
    Keywords
    nonimaging optics
    illumination design
    freeform
    
    Metadata
    Show full item record
    Publisher
    SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
    Citation
    Caleb Gannon, Caleb Gannon, Rongguang Liang, Rongguang Liang, } "Optimal geometry for off-axis, freeform illumination design," Optical Engineering 57(6), 065102 (7 June 2018). https://doi.org/10.1117/1.OE.57.6.065102 . Submission: Received: 25 January 2018; Accepted: 10 April 2018
    Journal
    OPTICAL ENGINEERING
    Rights
    © 2018 SPIE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    A thorough investigation into the efficiency and performance of off-axis, freeform illumination systems has been conducted, and a method for arriving at the optimal tilt is established for both reflective and refractive designs. The optimal tilt for refractive designs is determined by minimizing the total light lost due to Fresnel reflections across the lens, while the optimal tilt for reflective designs ensures the source is not obstructing the reflected ray bundle. For uncoated lenses, utilizing the proposed tilt can improve efficiency by more than 150%. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
    ISSN
    0091-3286
    DOI
    10.1117/1.OE.57.6.065102
    Version
    Final published version
    Sponsors
    National Institute of Biomedical Imaging and Bioengineering of the National Institutes of Health [UH2EB022623]; National Science Foundation Graduate Research Fellowship [DGE-1746060]
    Additional Links
    https://www.spiedigitallibrary.org/journals/optical-engineering/volume-57/issue-06/065102/Optimal-geometry-for-off-axis-freeform-illumination-design/10.1117/1.OE.57.6.065102.full
    ae974a485f413a2113503eed53cd6c53
    10.1117/1.OE.57.6.065102
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