Comparative evaluation of ocular hazards from projectors-laser and lamp projectors

Karl Bylund, David H. Sliney, Michael Beard

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Projectors of varying technologies have been in use for several decades in home and office environments. These include 35-mm slide projectors, overhead projectors, and more recently digital projectors. The trend in digital projectors has been increasing luminance from smaller products. This has been made possible by the advent of new or improved light sources and projection technologies. Results of a comparative evaluation of ocular hazards from various projection systems, including a mobile laser projection system are presented. Irradiance and source size measurements were made to determine the radiance of each of the projection systems for thermal and blue light hazards. Ultraviolet and infrared measurements were also made for completeness of the hazard evaluation. Projectors are classified by risk groups according to the 1EC 62471, first edition (CIE S009).

Original languageEnglish (US)
Title of host publicationThe World's Leading Conference on Laser Safety, ILSC 2009 - International Laser Safety Conference
PublisherLaser Institute of America
Number of pages8
ISBN (Print)9780912035246
StatePublished - 2009
Externally publishedYes
Event2009 International Laser Safety Conference, ILSC 2009 - Reno, NV, United States
Duration: Mar 23 2009Mar 26 2009


Other2009 International Laser Safety Conference, ILSC 2009
Country/TerritoryUnited States
CityReno, NV

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality


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