A forced transpiration arc source was used to produce high intensity ultraviolet. Using argon gas, the source produced a spectrum from 180 nm to 2.5 μ. Calibration and monitoring techniques are described. The different UV wavebands were obtained using a nickel-sulfate, cobalt-sulfate liquid filter cell and a B & L 500 mm grating monochromator. The photokeratitis thresholds obtained for rabbits were consistently lower than published values. Predictions are made for keratitis thresholds for man in outer space.
*Read before the Annual Meeting of the American Academy of Optometry, Beverly Hills, California, December 7, 1968. For publication in the August, 1969, issue of the American Journal of Optometry and Archives of American Academy of Optometry.
†Optometrist, Ph.D., Lt. Colonel in USAF. Fellow, American Academy of Optometry.
© 1969 American Academy of Optometry