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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 16 — Jun. 1, 2008
  • pp: 2988–2992

Hazards of solar blue light

Tsutomu Okuno  »View Author Affiliations

Applied Optics, Vol. 47, Issue 16, pp. 2988-2992 (2008)

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Short-wavelength visible light (blue light) of the Sun has caused retinal damage in people who have stared fixedly at the Sun without adequate protection. The author quantified the blue-light hazard of the Sun according to the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines by measuring the spectral radiance of the Sun. The results showed that the exposure limit for blue light can be easily exceeded when people view the Sun and that the solar blue-light hazard generally increases with solar elevation, which is in accordance with a model of the atmospheric extinction of sunlight. Viewing the Sun can be very hazardous and therefore should be avoided except at very low solar elevations.

© 2008 Optical Society of America

OCIS Codes
(000.1430) General : Biology and medicine
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.4470) Medical optics and biotechnology : Ophthalmology
(350.6050) Other areas of optics : Solar energy

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: January 28, 2008
Revised Manuscript: April 22, 2008
Manuscript Accepted: April 24, 2008
Published: May 22, 2008

Virtual Issues
Vol. 3, Iss. 7 Virtual Journal for Biomedical Optics

Tsutomu Okuno, "Hazards of solar blue light," Appl. Opt. 47, 2988-2992 (2008)

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