Optical element having an integral surface diffuser

Details Optical element having an integral surface diffuser Optical element having an integral surface diffuser

G - Physics

02

B

G02B 5/02 (2006.01) G02B 3/08 (2006.01)

Patent

CA 2341426

A monolithic element (20) has a substrate body (22) and at least one macro- optical characteristic integral (24) in a first portion of the optical element. A plurality of surface micro-structures (26) are integral in a portion of the optical element. The micro-structures (26) are designed to homogenize light passing through the optical element to produce a predetermined pattern of smoothly varying, non-discontinuous light exiting the optical element. The light exiting the optical element is therefore altered according to both the macro-optical characteristic of the optical element as well as the homogenizing characteristics of the micro-structures (26).

L'invention concerne un élément (20) monolithique ayant un corps (22) de substrat et au moins une caractéristique (24) macrooptique solidaire de une première partie de l'élément optique. Une pluralité de microstructures (26) de surface appartiennent intégralement à une partie de l'élément optique. Les microstructures (26) sont conçues pour homogénéiser la lumière traversant l'élément optique de manière à produire une configuration prédéterminée de lumière non discontinue, variant doucement, sortant de l'élément optique. La lumière sortant de l'élément optique est ainsi modifiée en fonction à la fois de la caractéristique macrooptique de l'élément optique et des caractéristiques d'homogénéisation des microstructures (26).

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