Posts Tagged ‘lumens’

Seeable Lumens – Light That The Eye Can See

Seeable Lumens – Light That The Eye Can See

SEEABLE LUMENS - LIGHT THAT THE EYE CAN SEE. A new method of measuring light was developed by Lawrence Berkeley Labs, Berkeley CA in 1992. Maintenance Engineering uses this new and more accurate method to measure called "Seeable Lumens." Seeable Lumens measure the full spectrum, which is both photopic (yellow light) seen by the cones, and scotopic (blue light) seen by the rods of the eye. "Seeable Lumens" give us a more accurate measurement of the usable light given off by a lamp. [Continue Reading]