Moving Head Light Fixture With Protruding Diffuser Cover And Multiple Light Sources

• US 20130033865A1
• Filed: 04/05/2011
• Published: 02/07/2013
• Est. Priority Date: 04/23/2010
• Status: Active Grant

• Current Assignee: Harman Professional Denmark ApS. (Samsung Electronics Co. Ltd.)
• Original Assignee: Martin Professional A/S (Samsung Electronics Co. Ltd.)
• Inventors: Vinther, Thomas, Hansen, Claus
• Granted Patent: US 8,950,895 B2
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21S 10/02 changing colors F21S10/002 - F21S10/007, F21S10/04 take precedence
• CPC Class Codes: F21S 10/023 by selectively switching fixed light sources
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21V 7/0083 Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane combination of two or more reflectors F21V7/0025
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 26/08 for controlling the direction of light in light guides G02B6/35
• CPC Class Codes: G02B 5/0278 used in transmission
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources

Abstract

The present invention relates to a moving head light fixture comprising a base; a yoke connected rotatable to the base and a head connected rotatable to the yoke. The head comprises a number of light sources and a number of light collecting means arranged in the head, where the number of light collecting means collect and convert light from at least one of the light sources into a number of source light beams which are emitted from said head. The head comprises a diffuser cover, which comprises at least one diffuser region. The diffuser region receives and diffuses at least a part of the light and at least a part of the diffuser cover protrudes from the head. The invention relates to a illumination system comprising such a moving head and a diffuser cover protruding from the head of for a moving head light fixture.

Claims

1. A moving head light fixture comprising:

a base;

a yoke connected rotatable to said base;

a head connected rotatable to said yoke;

said head comprises a number of light sources and a number of light collecting means arranged in said head, said number of light collecting means collect and light from at least one of said light sources and converts said collected light into a number of source light beams, said light source beams are emitted from said head wherein said head comprises a diffuser cover, said diffuser cover comprises at least one diffuser region, said diffuser region receives and diffuses at least a part of said light generated by said light sources and at least a part of said diffuser cover protrudes from said head.

2. A moving head light fixture according to claim 1 wherein said diffuser cover is embodied as a ridge body.

3. A moving head light fixture according to claim 1 wherein said diffuser cover further comprises at least one non-diffusing region where through at least at part of said number of source light beams pass without being diffused.

4. An illumination device according to claim 3 wherein at least one non-diffusing region is a clear area arranged above said light collecting means.

5. An illumination device according to claim 3 wherein at least one non-diffusing region is an aperture arranged above said light collecting means.

6. An illumination device according claim 3 wherein said number of light sources are arranged in at least at first group of light sources and in a second group of light sources, said number of light collecting means collect and light from said first group of light sources and convert said collected light into a number of source light beams, and in that said diffuser region receives light generated by said second group of light sources and diffuses said received light.

7. An illumination device according to claim 6 wherein said first group of light sources and said second group of light sources are independently controllable.

8. A diffuser cover for a moving head light fixture, said moving head light fixture comprises:

a base;

a yoke connected rotatable to said base;

a head connected rotatable to said yoke;

said head comprises a number of light sources and a number of light collecting means arranged in said head, said number of light collecting means collect convert light from at least one of said light sources and convert said collected light into a number of source light beams, said light source beams are emitted from said head wherein said diffuser cover comprises at least one diffuser region, said diffuser region receives and diffuses at least a part of said light generated by said light sources and at least a part of said diffuser cover is adapted to protrude from said head.

9. A diffuser cover according to claim 8 said diffuser cover is embodied as a ridge body.

10. A moving head light fixture according to claim 8 wherein said diffuser cover further comprises at least one non-diffusing region where through at least at part of said number of source light beams pass without being diffused.

11. A diffuser cover according to claim 10 wherein at least one non-diffusing region is a clear area.

12. A diffuser cover according to claim 10 wherein at least one non-diffusing region is an aperture.

14. An illumination system according to claim 12 wherein a number said moving heads are arranged in a matrix.

15. An illumination system according to claim 14 wherein said central controller are adapted to send pixel data to said moving heads in said matrix.

13. An illumination system comprising a central controller connected to and controlling a number of moving head light fixtures, said moving head light fixtures comprise:

a base;

a yoke connected rotatable to said base;

a head connected rotatable to said yoke;

where said head comprises a number of light sources and a number of light collecting means arranged in said head, said number of light collecting means collect light from at least one of said light sources and convert said collected light into a number of source light beams, said light source beams are emitted from said head wherein at least one of said moving head light fixtures comprises a head comprising a diffuser cover, said diffuser cover comprises at least one diffuser region, said diffuser region receives and diffuses at least a part of said light generated by said light sources and at least a part of said diffuser cover protrudes from said head.