6533b861fe1ef96bd12c596a
RESEARCH PRODUCT
Compact dielectric reflective elements I Half-sphere concentrators of radially emitted light
Jānis Spigulissubject
PhysicsTotal internal reflectionbusiness.industryApertureMaterials Science (miscellaneous)CollimatorDielectricIndustrial and Manufacturing Engineeringlaw.inventionOpticslawPhysics::Accelerator PhysicsLight beamBusiness and International ManagementbusinessRefractive indexBeam (structure)Light-emitting diodedescription
Optical designs of aspheric internally reflective concentrators of divergent light emitted within a spatial angle of 2n sr are proposed and discussed. Four types of solid transparent element are considered: the divergence angle reducer, the small-spot illuminator, the point focuser, and the collimator. The output beam aperture in all cases is comparable with the light-source external dimensions. Expressions describing the profiles of beam-transforming surfaces and results from experiments with model devices are presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-09-01 | Applied Optics |