DOE CALiPER Program, Report 20.1 Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps Metadata

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Title

  • Main Title DOE CALiPER Program, Report 20.1 Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps

Creator

  • Author: Royer, Michael P.
    Creator Type: Personal
  • Author: Poplawski, Michael E.
    Creator Type: Personal
  • Author: Miller, Naomi J.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Pacific Northwest National Laboratory (U.S.)
    Place of Publication: Richland, Washington
    Additional Info: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Date

  • Creation: 2013-10-01

Language

  • English

Description

  • Content Description: This report focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality. Using a questionnaire that included rank ordering, opinions on 27 of the Report 20 PAR38 lamps were gathered during a demonstration event for members of the local Illuminating Engineering Society (IES) chapter. This was not a rigorous scientific experiment, and the data should not be extrapolated beyond the scope of the demonstration. The results suggest that many of the LED products compared favorably to halogen PAR38 benchmarks in all attributes considered. LED lamps using a single-emitter design were generally preferred for their beam quality and shadow quality, and the IES members ranking of color quality did not always match the rank according to the color rendering index (CRI).
  • Physical Description: PDFN

Subject

  • Keyword: Solid State Lighting
  • Keyword: Led
  • Keyword: Caliper
  • Keyword: Beam Quality

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: PNNL-22907
  • Grant Number: AC05-76RL01830
  • DOI: 10.2172/1110478
  • Office of Scientific & Technical Information Report Number: 1110478
  • Archival Resource Key: ark:/67531/metadc865737
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