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1. WO2006054999 - STAGE LIGHTING METHODS AND APPARATUS

Publication Number WO/2006/054999
Publication Date 26.05.2006
International Application No. PCT/US2004/038809
International Filing Date 19.11.2004
IPC
G03B 21/14 2006.1
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
F21S 10/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
10Lighting devices or systems producing a varying lighting effect
CPC
F21V 9/40
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
9Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
40with provision for controlling spectral properties, e.g. colour, or intensity
F21W 2131/406
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
2131Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
40Lighting for industrial, commercial, recreational or military use
406for theatres, stages or film studios
Applicants
  • WHITEROCK DESIGN, LLC [US]/[US] (AllExceptUS)
  • HOUGH, Thomas, A. [US]/[US] (UsOnly)
Inventors
  • HOUGH, Thomas, A.
Agents
  • MUNCK, William, A.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) STAGE LIGHTING METHODS AND APPARATUS
(FR) PROCEDES ET APPAREIL D’ECLAIRAGE DE SCENE
Abstract
(EN) According to one implementation of a spot illumination apparatus a spot luminaire includes a light source (117) for emitting a beam of light and a projection lens (170) configured to project the beam of light towards a distant target. A first field stop, through which the beam of light passes, is positioned between the light source and the projection lens. A filter apparatus (95) is positioned proximate the first field stop (125) and is adapted for selectively moving at least one variable density filter across the beam of light. A relay lens group (220) is positioned between the first field stop (125) and the projection lens (170). The relay lens group is configured to prevent the at least one variable density filter from being imaged by the projection lens.
(FR) Selon une mise en œuvre d’un appareil d’éclairage par projecteur, un luminaire de projecteurs comprend une source lumineuse (117) pour émettre un faisceau de lumière et un objectif de projection (170) configuré pour projeter le faisceau de lumière vers une cible distante. Un premier arrêt de champ, à travers lequel le faisceau de lumière passe, est positionné entre la source lumineuse et l’objectif de projection. Un appareil de filtre (95) est positionné à proximité du premier arrêt de champ (125) et est adapté pour déplacer sélectivement au moins un filtre de densité variable sur le faisceau de lumière. Un groupe de lentilles de relais (220) est positionné entre le premier arrêt de champ (125) et l’objectif de projection (170). Le groupe de lentilles de relais est configuré pour empêcher l’au moins un filtre de densité variable d’être imagé par l’objectif de projection.
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