Nonimaging reflectors for efficient uniform illumination

Jeff M. Gordon, Peter Kashin, Ari Rabl

    Research output: Contribution to journalArticlepeer-review

    33 Scopus citations


    Nonimaging reflectors that are an extension of the design principle that was developed for compound parabolic concentrator type devices are proposed for illumination applications. The optical designs presented offer maximal lighting efficiency while they retain sharp angular control of the radiation and highly uniform flux densities on distant target planes. Our results are presented for symmetrical configurations in two dimensions (troughlike reflectors) for flat and for tubular sources. For fields of view of practical interest (half-angle in the 30-60° range), these devices can achieve minimum-to- maximum intensity ratios of ˜ 0.7, while they remain compact and incur low reflective losses.

    Original languageEnglish
    Pages (from-to)6027-6035
    Number of pages9
    JournalApplied Optics
    Issue number28
    StatePublished - 1 Jan 1992


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