etendue

etendue synonyms

throughput compare etendue and throughput
acceptance compare etendue and acceptance
light grasp compare etendue and light grasp
light-gathering power compare etendue and light-gathering power
light-collecting power compare etendue and light-collecting power
optical extent compare etendue and optical extent
étendue compare etendue and étendue
geometric extent compare etendue and geometric extent
AΩ product compare etendue and AΩ product
capacity compare etendue and capacity

etendue definitions

noun

  • A conserved property of the light in an optical system which characterizes how "spread out" the light is in terms of angle and area: it is the product of its cross-sectional area (normal to the direction of propagation) and the solid angle it subtends.