NASA NTRS ยท 19660000155
Circular, explosion-proof lamp provides uniform illumination
Abstract
Circular explosion-proof fluorescent lamp is fitted around a TV camera lens to provide shadowless illumination with a low radiant heat flux. The lamp is mounted in a transparent acrylic housing sealed with clear silicone rubber.
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1966-04-01. Circular, explosion-proof lamp provides uniform illumination. https://ntrs.nasa.gov/citations/19660000155
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