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1. CA2474832 - APPARATUS AND METHODS RELATING TO WAVELENGTH CONDITIONING OF ILLUMINATION

Office Canada
Application Number 2474832
Application Date
Publication Number 2474832
Publication Date 15.08.2002
Grant Number
Grant Date 17.07.2012
Publication Kind C
IPC
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26
Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating
08
for controlling the direction of light
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
8
Lighting devices intended for fixed installation
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
10
Lighting devices or systems producing a varying lighting effect
02
changing colours
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
13
Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/-F21V11/204
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
G PHYSICS
05
CONTROLLING; REGULATING
D
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
25
Control of light, e.g. intensity, colour, phase
02
characterised by the use of electric means
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
37
Circuit arrangements for electric light sources in general
02
Controlling
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41
Circuit arrangements or apparatus for igniting or operating discharge lamps
14
Circuit arrangements
36
Controlling
38
Controlling the intensity of light
39
continuously
392
using semiconductor devices, e.g. thyristor
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
5
Radiation therapy
06
using light
G02B 26/08
F21S 8/00
F21S 10/02
F21V 13/00
G02B 27/00
G05D 25/02
CPC
A61N 5/0616
A61N 5/062
F21S 10/02
F21W 2131/406
G02B 26/0841
H05B 41/3922
Applicants TIDAL PHOTONICS, INC
Inventors MACKINNON, NICHOLAS B.
MACAULAY, CALUM E.
STANGE, ULRICH
Priority Data 60/265,991 02.02.2001 US
60/310,940 07.08.2001 US
Title
(EN) APPARATUS AND METHODS RELATING TO WAVELENGTH CONDITIONING OF ILLUMINATION
(FR) APPAREIL ET PROCEDES RELATIFS AU CONDITIONNEMENT EN LONGUEUR D'ONDES D'ILLUMINATION
Abstract
(EN)
Lighting systems comprising a spectrum former upstream from a reflective pixelated spatial light modulator (reflective SLM), the SLM reflecting substantially all of the light in the spectrum into at least two different light paths, that do not reflect back to the light source or the spectrum former. At least one of the light paths acts as a projection light path and transmits desired light out of the lighting system. The lighting systems provide virtually any desired color(s) and intensity(s) of light, and avoid overheating problems by deflecting unwanted light and other electromagnetic radiation out of the system or to a heat management system. The systems can be part of another system, a luminaire, or any other suitable light source. The systems can provide virtually any desired light, from the light seen at the break of morning to specialized light for treating cancer or psoriasis, and may change color and intensity at speeds that are perceptually instantaneous.