Theatre light projector incorporating a plurality of light sources and improvements to blending the light output

• US 10,344,944 B2
• Filed: 09/02/2017
• Issued: 07/09/2019
• Est. Priority Date: 05/06/2017
• Status: Active Grant

• Current Assignee: Richard S. Belliveau
• Original Assignee: Richard S. Belliveau
• Inventors: Belliveau, Richard S.
• Primary Examiner(s): Ellis, Suezu
• Application Number:
  US15/694,771
• Publication Number:
  US 20180320857A1
• Time in Patent Office: 675 Days
• CPC Class Codes: F21K 9/64 using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
• CPC Class Codes: F21S 10/007 using rotating transparent or colored disks, e.g. gobo wheels
• CPC Class Codes: F21V 11/00 Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 characterised by cooling arrangements F21V29/502
• CPC Class Codes: F21V 13/00 Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00 controlling the distribution of the light emitted by adjustment of elements F21V14/00
• CPC Class Codes: F21V 13/02 Combinations of only two kinds of elements
• CPC Class Codes: F21V 14/06 by movement of refractors in vehicle head lamps F21S41/635
• CPC Class Codes: F21V 14/08 by movement of the screens or filters
• CPC Class Codes: F21V 17/02 with provision for adjustment F21V17/04 - F21V17/08 take precedence
• CPC Class Codes: F21V 19/0055 by screwing
• CPC Class Codes: F21V 19/02 with provision for adjustment, e.g. for focusing
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 3/061 the material being glass
• CPC Class Codes: F21V 3/062 the material being plastics
• CPC Class Codes: F21V 5/007 Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane combination of two or more refractors F21V5/008
• 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 6/0008 the light being emitted at the end of the fibre
• CPC Class Codes: G02B 6/0096 the lights guides being of the hollow type

Abstract

A theater light projector including a housing, a plurality of light sources, a plurality of lenses, a light exiting output aperture, and a central integrating mask. The light exiting output aperture has a center. The plurality of light sources are arranged around a central axis. The plurality of light sources project light though the light exiting output aperture. The center of the light exiting output aperture is substantially void of projected light projected by the plurality of light sources. The central integrating mask is located in the center of the light exiting aperture and partially intersects a portion of the projected light from each of the plurality of light sources.

Claims

1. A theatre light projector comprising:

a housing, a plurality of light sources, a plurality of lenses, a light exiting output aperture, and a central integrating mask;

wherein the light exiting output aperture has a center;

wherein the plurality of light sources are arranged around a central axis;

wherein the plurality of light sources project light though the light exiting output aperture;

wherein the center of the of the light exiting output aperture is substantially void of projected light projected by the plurality of light sources; and

wherein the central integrating mask is located in the center of the light exiting aperture and partially intersects a portion of the projected light from each of the plurality of light sources.

2. The theatre light projector of claim 1 further comprising

a diffusion system, wherein the diffuser system is comprised of a plurality of segments;

and wherein the diffusion system is located between the plurality of light sources and the light exiting output aperture and intersects the projected light from the plurality of light sources.

3. The theatre light projector of claim 1 further comprising

an aperture device comprising a first color filter and a second color filter;

and wherein the aperture device is located between the plurality of light sources and the light exiting output aperture and intersects the projected light from the plurality of light sources.

4. The theatre light projector of claim 1

wherein the plurality of lenses are traversable along the central axis

between the plurality of light sources and the light exiting output aperture and intersect the projected light from the plurality of light sources.

5. The theatre light projector of claim 1

wherein the plurality of light sources are comprised of a first light emitting diode light source projecting light out in a first light path and a second light emitting diode light source projecting light out in a second light path;

and

wherein the first light emitting diode light source has a first heat sink and the second light emitting diode light source has a second heatsink and the first heat sink is adjustable to alter a the first light path and the second heatsink is adjustable to alter a direction the second light path.

6. A theatre light projector comprising:

a housing, a plurality of light sources, a plurality of lenses, and a diffusion system;

wherein the plurality of light sources are arranged around a central axis;

wherein each of the plurality of light sources project light though the diffusion system;

wherein the diffusion system has a center;

and wherein the center of the diffusion system is substantially void of light projected by each of the plurality of light sources; and

wherein a central integrating mask is located in the center of the diffusion system and partially intersects a portion of the light projected by each of the plurality of light sources.

7. The theatre light projector of claim 6 further comprising

a light exiting aperture which is comprised of glass;

and wherein the light exiting aperture intersects at least a portion of the light projected by each of the plurality of light sources.

8. The theatre light projector of claim 6 further comprising

a light exiting aperture which is comprised of a polymer;

and wherein the light exiting aperture intersects at least a portion of the light projected by each of the plurality of light sources.

9. The theatre light projector of claim 6 further comprising

an aperture device comprising a first and second color filter;

and wherein the aperture device intersects at least a portion of the light projected by each of the plurality of light sources.

10. The theatre light projector of claim 6

wherein the plurality of lenses are traversable along the central axis

between the plurality of light sources and a light exiting output aperture and intersect the projected light from the plurality of light sources.

11. The theatre light projector of claim 6 wherein

the plurality of light sources are comprised of a first light emitting diode light source projecting light out in a first light path and a second light emitting diode light source projecting light out in a second light path;

wherein the first light emitting diode light source has a first heat sink and the second light emitting diode light source has a second heat sink and the first heat sink is adjustable to alter the first light path and the second heat sink is adjustable to alter the second light path.