Lighting apparatus

• US 20060034089A1
• Filed: 09/06/2005
• Published: 02/16/2006
• Est. Priority Date: 09/06/2001
• Status: Active Grant

• Current Assignee: Harman Professional Denmark ApS. (Samsung Electronics Co. Ltd.)
• Original Assignee: Martin Professional A/S (Samsung Electronics Co. Ltd.)
• Inventors: Glavind, Mads, Rasmussen, Niels Jorgen
• Granted Patent: US 7,222,997 B2
• Time in Patent Office: Days
• US Class Current: 362/382
• CPC Class Codes: F21S 10/007 using rotating transparent or colored disks, e.g. gobo wheels
• CPC Class Codes: F21V 11/14 with many small apertures
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: Y10S 359/903 with magnet
• CPC Class Codes: Y10S 362/811 Psychedelic lighting

Abstract

Lighting apparatus includes an effect wheel which is mounted on a rotation mechanism. The rotation mechanism is mounted on a mechanism which moves the effect wheel from a position outside of the light path to a position in which the effect wheel intersects the light path to provide a continuous wheel effect. The translation mechanism can move the effect wheel between positions in which the effect wheel crosses the light path in a horizontal direction and in a vertical direction, respectively. The apparatus allows a continuous wheel effect to be added to a multi-purpose luminaire and also allows the direction of travel of the continuous wheel effect across the illuminated field to be continuously varied.

Claims

1. A removable optical component for a lighting fixture comprising:

an optical portion adapted to alter the visual appearance of a light beam passing there through;

a magnetic portion arranged to attach the optical component to a surface of a lighting fixture by magnetic attraction; and

at least one locating formation configured to engage with a complementary locating formation on said lighting fixture to locate the optical component in position on said fixture.

2. A lighting fixture comprising an optical component having:

an optical portion adapted to alter the visual appearance of a light beam passing therethrough;

a magnetic portion attached to a metal surface of the lighting fixture by magnetic attraction; and

at least one locating formation engaging a complementary locating formation on the lighting fixture.