EP 1825323 B1 20110525 - STAGE LIGHTING METHODS AND APPARATUS
Title (en)
STAGE LIGHTING METHODS AND APPARATUS
Title (de)
BÜHNENBELEUCHTUNGSVERFAHREN UND -VORRICHTUNGEN
Title (fr)
PROCEDES ET APPAREIL D'ECLAIRAGE DE SCENE
Publication
Application
Priority
US 2004038809 W 20041119
Abstract (en)
[origin: WO2006054999A1] 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.
IPC 8 full level
G03B 21/14 (2006.01); F21S 10/00 (2006.01)
CPC (source: EP US)
F21V 9/40 (2018.01 - EP US); F21W 2131/406 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006054999 A1 20060526; AT E511123 T1 20110615; CA 2588975 A1 20060526; CA 2588975 C 20130806; EP 1825323 A1 20070829; EP 1825323 A4 20090408; EP 1825323 B1 20110525
DOCDB simple family (application)
US 2004038809 W 20041119; AT 04811513 T 20041119; CA 2588975 A 20041119; EP 04811513 A 20041119