Optical diffusers with spatial variations

A diffuser is configured to diffuse radiation from multiple light sources. The diffuser includes a substrate having optical structures that exhibit both microvariations and macrovariations along the substrate. For example, an array of microlenses may be provided that include at least one feature tha...

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Bibliographic Details
Main Authors SOULE, III ROBERT M, PURCHASE KEN G, LEFEW WILLIAM R, WOOD ROBERT L
Format Patent
LanguageEnglish
Published 10.03.2015
Subjects
ADVERTISING
CRYPTOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DISPLAY
DISPLAYING
EDUCATION
FREQUENCY-CHANGING
LABELS OR NAME-PLATES
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEALS
SIGNS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:A diffuser is configured to diffuse radiation from multiple light sources. The diffuser includes a substrate having optical structures that exhibit both microvariations and macrovariations along the substrate. For example, an array of microlenses may be provided that include at least one feature that varies as a function of the spacing between the light sources. Lighting systems using these diffusers may also be provided.
Bibliography:Application Number: US20090506915