Variable color light projector

• US 5,597,231 A
• Filed: 05/22/1995
• Issued: 01/28/1997
• Est. Priority Date: 05/24/1994
• Status: Expired due to Fees

• Current Assignee: James Rosset
• Original Assignee: James Rosset
• Inventors: Rosset, James
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US08/446,410
• Time in Patent Office: 617 Days
• Field of Search: 362/231, 362/237, 362/240, 362/241, 362/293, 355/37, 355/70, 355/71
• US Class Current: 362/231
• CPC Class Codes: F21S 10/02 changing colors F21S10/002 - F21S10/007, F21S10/04 take precedence
• CPC Class Codes: F21V 17/16 by deformation of parts; Snap action mounting
• CPC Class Codes: F21V 17/162 the parts being subjected to traction or compression, e.g. coil springs
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios

Abstract

A light projector, which makes it possible to change the light colors and their intensities instantaneously, comprises a series of at least three lamps supplied by three circuits controlled from a control panel comprising three selectors. Depending on the variant, there are either three dichroic lamps of different colors, or white lamps with which dichroic filters of colors A, B and C are associated. The disclosure concerns the elements supporting the lights in an enclosure.

Claims

1. A variable color light projector comprising:

at least three lamps each capable of projecting a light beam, and the lamps being oriented so that respective light beams thereof are projected substantially parallel;

at least a set of three color filters positioned relative to the lamps to supply color to the respective beams of light from the lamps;

three supply circuits, each respectively for one of the lamps;

three control devices, each for a respective one of the supply circuits; and

a white light lamp disposed in a central position to the three lamps, with an independent supply circuit and control device.

2. The projector of claim 1, wherein each of the lamps is a white light lamp.

3. The projector of claim 2, further comprising an outer protective plate below and a spring disk above the outer protective plate and the filters being elastically clamped between the outer protective plate and the spring disk, the outer protective plate being below and in the beams of light from the lamps;

a support plate for the projector, and the support plate having protuberances intended for bearing on an internal wall of a casing of the projector, the support plate retaining sockets for the lamps including passages therethrough the clamping means for fastening both plates and the projector together.

4. The projector of claim 3, wherein the plates includes openings therein for the passages of the lamps and the light beams from the lamp.

5. The projector of claim 3, wherein the plate includes passages therethrough, and clamping means which fasten the plate and projector and pass through the passages.

6. The projector of claim 1, comprising an additional set of three color filters, and three additional lamps with a respective one of the lamps for each of the filters, and wherein each of the filters being disposed in front of each of the lamps.

7. The projector of claim 6, wherein the filters of one of the sets are darker in shade than the filters of the other set.

8. The projector of claim 6, wherein the color filters are respectively blue, green and red.

9. The projector of claim 6, including a cylindrical body and an inner closure plate and an outer closure plate which are spaced apart and defining an enclosure in the cylindrical body;

a cooling fan for the lamps located within the body, the lamps in part communicating into the body;

components connectable to an electrical power point and connected to the respective supply circuits.

10. The projector of claim 9, further comprising a support plate within the body, and lamps having respective sockets for supplying the lamps and the sockets being contained and supported in the support plate.

11. The projector of claim 9, further comprising a support plate within the body, and the plate having respective sockets for supplying the lamps and the sockets being contained and supported in the support plate.

12. The projector of claim 11, further comprising a plate below and a spring disk above the plate and the filters being elastically clamped between the plate and the spring disk, the plate being below and in the beams of light from the lamps;

a support plate for the projector, and the support plate having protuberances intended for bearing on an internal wall of a casing of the projector, the support plate retaining sockets for the lamps;

the plate and the support plate all including passages therethrough and clamping means for fastening the various plates and the projector together.

13. The projector of claim 12, wherein the plate includes passages therethrough, and clamping means which fasten the plate and projector and pass through the passages.

14. The projector of claim 12, further comprising a support plate with in the body, and lamps having respective sockets for supplying the lamps and the sockets being contained and supported in the support plate, wherein the support plate in the body and a grill each includes openings therein for passage of the lamps and the light beams.

15. The projector of claim 1, further comprising a support plate for the projector, and the plate having protuberances intended for bearing on an internal wall of a casing of the projector, the support plate retaining sockets for the lamps.

16. The projector of claims 1, wherein each of the lamps includes a respective reflector for directing the light beams parallel;

a grill for elastically holding the reflectors.

17. A variable color light projector comprising:

at least three lamps each capable of projecting a light beam, and the lamps being oriented so that the respective light beams thereof are projected substantially parallel, each of the lamps is a white light lamp;

three supply circuits, each respectively for one of the lamps;

three control devices, each for a respective one of the supply circuits;

a respective color filter positioned in front of each of the lamps for supplying color to the respective beam of light from each lamp;

an additional white light lamp with a respective independent supply circuit and a respective control device; and

an additional set of three color filters, and three additional lamps with a respective one of the lamps for each of the filters, and wherein each of the filters being disposed in front of each of the lamps.

18. The projector of claim 17, wherein the filters of one of the sets are darker in shade than the filters of the other set.

19. The projector of claim 17, wherein the color filters are respectively blue, green and red.

20. The projection of claim 17, including a cylindrical body and an inner closure plate and an outer closure plate which are spaced apart and defining an enclosure in the cylindrical body;

a cooling fan for the lamps located within the body, the lamps in part communicating into the body;

components connectable to an electrical power point and connected to the respective supply circuits.

21. The projector of claim 20, further comprising a plate within the body, and lamps having respective sockets for supplying the lamps and the sockets being contained and supported in the support plate.

22. The projection of claim 20, further comprising a support plate within the body, and the plate having respective sockets for supplying the lamps and the sockets being contained and supported in the support plate.

23. The projector of claim 22, further comprising a plate below and a spring disk above the plate and the filters being elastically clamped between the plate and the spring disk, the plate being below and in both beams of light from the lamps;

a support plate for the projector, and the support plate having protuberances intended for bearing on an internal wall of a casing of the projector, the support plate retaining sockets for the lamps;

the plate and the support plate all including passages therethrough and clamping means for fastening the various plates and the projector together.

24. The projector of claim 23, wherein the plate includes passages therethrough, and clamping means which fasten the plate and projector and pass through the passages.

25. The projector of claim 23, further comprising a support plate within the body, and lamps having respective sockets for supplying the lamps and the sockets being contained and supported in the support plate, wherein the support plate in the body and a grill each includes openings therein for passage of the lamps and the light beams.

26. The projector of claim 17, further comprising a support plate for the projector, and the plate having protuberances intended for bearing on an internal wall of a casing of the projector, the support plate retaining sockets for the lamps.

27. The projector of claim 17, wherein each of the lamps includes a respective reflector for directing the light beams parallel;

a grill for elastically holding the reflectors.

28. The projector of claim 17, further comprising a plate below and a spring disk above the plate and the filters being elastically clamped between the plate and the spring disc, the plate being below and in the beams of light from the lamps;

a support plate for the projector, and the support plate having protuberances intended for bearing on the internal wall of a casing of a projector;

the plate and the support plate all including passages therethrough and clamping means for fastening the various plates and the projector together.

29. The projection of claim 28, wherein the plate includes passages therethrough, and clamping means which fasten the plate and projection and pass through the passages.

30. The projector of claim 28, wherein the plates includes openings therein for the passages of the lamps and the light beams from the lamp.