Museum lighting for golden artifacts, with low correlated color temperature, high color uniformity and high color rendering index, using diffusing color mixing of red, cyan, and white-light-emitting diodes

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    Abstract

    Museum lighting presents challenges mainly due to the demand for precise color rendering and the damaging effects of radiation. Golden objects must normally be illuminated by the non-standard CCT of 2200 K. An LED system that conforms to these requirements has been developed and implemented at the Royal Danish Collection at Rosenborg Castle. Color mixing of red, cyan, and white LEDs was employed to achieve the spectral power distribution needed for the required CCT and a CRI above 90. Color uniformity is achieved by the use of a highly diffusing reflector. The system has shown energy saving above 70%.
    Original languageEnglish
    JournalProceedings of SPIE, the International Society for Optical Engineering
    Volume8278
    Pages (from-to)82781N
    ISSN0277-786X
    DOIs
    Publication statusPublished - 2012
    EventLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting - San Francisco, CA, United States
    Duration: 24 Jan 201226 Jan 2012
    Conference number: 16
    http://spie.org/app/program/index.cfm?fuseaction=conferencedetail&conference_id=961568&event_id=896189

    Conference

    ConferenceLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting
    Number16
    Country/TerritoryUnited States
    CitySan Francisco, CA
    Period24/01/201226/01/2012
    Internet address

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