Also known as: bs.
BS stands for various terms. Discover the full forms, meanings, and possible interpretations of BS across different fields and industries.
With regard to outdoor light, the angle between the two directions in a plane in which the intensity is equal to a stated percentage of the maximum beam intensity. The percentage is typically 10% for floodlights and 50% for roadway luminaries. Or The measure of the whole angle from side to side of the main lobe of sound beam in the far field. OR In any plane, the angle between the two directions in which the candlepower is equal to a stated percent (usually 10 percent) of the maximum candlepower in the beam.
Last updated: