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1. WO2000011522 - APPARATUS HAVING A LIGHT SOURCE AND SOL-GEL MONOLITHIC DIFFUSER

Publication Number WO/2000/011522
Publication Date 02.03.2000
International Application No. PCT/US1999/019780
International Filing Date 25.08.1999
Chapter 2 Demand Filed 22.03.2000
IPC
G02B 5/02 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
G02B 5/32 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
32Holograms used as optical elements
G03H 1/32 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red, or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
32Systems for obtaining speckle elimination
CPC
G02B 5/0221
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
021the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
0221the surface having an irregular structure
G02B 5/0252
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
0252using holographic or diffractive means
G02B 5/0278
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0273characterized by the use
0278used in transmission
G02B 5/32
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
32Holograms used as optical elements
G03H 1/32
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
32Systems for obtaining speckle elimination
Applicants
  • PHYSICAL OPTICS CORPORATION [US]/[US]
Inventors
  • SHIE, Rick, L.
  • LAINE, Jeffrey, A.
  • SAVANT, Gajendra, D.
Agents
  • NILLES, Andrew, J.
Priority Data
09/139,38025.08.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS HAVING A LIGHT SOURCE AND SOL-GEL MONOLITHIC DIFFUSER
(FR) APPAREIL COMPRENANT UNE SOURCE DE LUMIERE ET UN DIFFUSEUR MONOLITHIQUE SOL-GEL
Abstract
(EN)
An apparatus (40) for projecting light onto a predetermined area (84) includes a light source (42) and a transparent element (46) disposed adjacent the light source (42). The transparent element (46) is made from sol-gel type glass, quartz, or other optical material. A plurality of micro-sculpted structures (50) integral in a surface of the transparent element (46) are provided which both homogenize and control directionality of light passing from the light source (42) through the transparent element (46).
(FR)
L'invention concerne un appareil (40) servant à projeter la lumière sur une zone prédéterminée (84). Ledit appareil comprend une source (42) de lumière et un élément transparent (46) adjacent à la source (42) de lumière. L'élément transparent (46) est fabriqué à partir de verre du type sol-gel, de quartz ou d'autres matériaux optiques. Une pluralité de structures microsculptées solidaires de la surface de l'élément transparent (46) à la fois homogénéise et agit sur l'orientation de la lumière partant de la source (42) de lumière et passant à travers l'élément transparent (46).
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