Rotary projector light

• US 9,310,059 B2
• Filed: 12/06/2013
• Issued: 04/12/2016
• Est. Priority Date: 12/06/2013
• Status: Active Grant

• Current Assignee: Gemmy Industries Corporation
• Original Assignee: Gemmy Industries Corporation
• Inventors: Zhang, Cheng-Chun
• Primary Examiner(s): Bowman, Mary Ellen
• Application Number:
  US14/098,876
• Publication Number:
  US 20150159842A1
• Time in Patent Office: 858 Days
• US Class Current: 1/1
• CPC Class Codes: F21S 10/06 flashing, e.g. with rotating reflector or light source signalling lighting devices mounted on vehicles B60Q1/26
• CPC Class Codes: F21V 21/0824 Ground spikes
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 31/00 Gas-tight or water-tight arrangements
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A rotary projector light can include a lamp case defining a hollow mounting chamber and having an open front end; a power supply located inside the lamp case, the power supply connected to a power cable adapted to connect to an external power source; a motor located inside the lamp case, the motor electrically connected to the power supply and having a spindle; a positioning seat mounted on the spindle; a plurality of light emitting diode (LED) elements located on the positioning seat, the LED elements electrically connected to the power supply; and a beam-splitting lens cover located on the open front end of the lamp case. The beam-splitting lens cover can have an inner surface with multiple convex lenses directed at multiple refraction angles.

Claims

1. A rotary projector light, comprising:

a lamp case defining a hollow mounting chamber and having an open front end;

a power supply located inside the lamp case, the power supply connected to a power cable adapted to connect to an external power source;

a motor located inside the lamp case, the motor electrically connected to the power supply and having a spindle;

a positioning seat mounted on the spindle;

a plurality of light emitting diode (LED) elements located on the positioning seat, the LED elements electrically connected to the power supply; and

a beam-splitting lens cover located on the open front end of the lamp case, the beam-splitting lens cover having an inner surface with multiple convex lenses directed at multiple refraction angles.

2. The rotary projector light of claim 1, further comprising a lens assembly mounted on the open front end of the lamp case and enclosing the LED elements within the hollow mounting chamber.

3. The rotary projector light of claim 2, wherein the beam-splitting lens cover defines an interior receiving space that receives the lens assembly.

4. The rotary projector light of claim 2, wherein the lens assembly forms a watertight seal with the hollow mounting chamber of the lamp case.

5. The rotary projector light of claim 1, wherein the plurality of LED elements are adapted to emit light of different colors.

6. The rotary projector light of claim 1, wherein:

the positioning seat defines a plurality of faces distributed around a central axis of the spindle of the motor; and

at least one LED element is located on each face.

7. The rotary projector light of claim 6, wherein:

the plurality of faces of the positioning seat include a first face, a second face, and a third face;

a first LED element, a second LED element, and a third LED element are located on the first face, the second face, and the third face, respectively;

wherein each of the first LED element, the second LED element, and the third LED element is adapted to emit light of a different color.

8. The rotary projector light of claim 2, wherein the lens assembly comprises:

a lens plate hermetically mounted on the open front end of the lamp case; and

a lens tube protruding from the lens plate away from the lamp case, the lens tube defining a receiving chamber adapted to receive the positioning seat and the LED elements.

9. The rotary projector light of claim 1, further comprising a support stand including:

a U-shaped bracket mounted on two lateral portions of the lamp case; and

an insertion post tapered in a downward direction, the insertion post having an upper end rotatably mounted to the U-shaped bracket.

10. The rotary projector light of claim 1, further comprising:

an electrical connection device that electrically connects the LED elements to the power supply, the electrical connection device including;

an insulating sleeve mounted around the spindle of the motor and having a partition flange protruding radially outwardly from the insulating sleeve;

first and second conductive rings located on opposite sides of the partition flange;

first and second conductive wires electrically connecting the first and second conductive rings, respectively, to a terminal of each LED element;

first and second resilient conductive elements electrically connected to the power supply, the first and second resilient conductive elements contacting the first and second conductive rings, respectively.

11. The rotary projector light of claim 10, further comprising:

a base located within the hollow mounting chamber of the light case, the base defining a through hole for the spindle of the motor; and

first and second pillars extending from the base;

wherein the first and second resilient conductive elements comprise conductive torque springs mounted around the first and second pillars, respectively.

12. The rotary projector light of claim 11, wherein each of the first and second conductive torque springs has a conductive contact end electrically contacting one of the first and second conductive rings.

13. The rotary projector light of claim 1, wherein the beam-splitting lens cover comprises a front beam-splitting lens cover and a rear beam-splitting lens cover.

14. A method of projecting multiple colors of light at multiple angles, comprising:

providing a rotary projector light having a lamp case and a beam-splitting lens cover, the rotary projector light further having a power source and a motor located within the lamp case;

rotating a plurality of different colored light emitting diode (LED) elements around an axis within the lamp case; and

emitting light from the plurality of different colored LED elements, the light projecting through the beam-splitting lens cover;

transmitting electrical power from the power source to the motor to rotate the plurality of different colored LED elements; and

transmitting electrical power from the power source to the plurality of different colored LED elements, wherein the beam-splitting lens refracts the light at multiple projection angles;

further wherein;

the motor includes a spindle supporting a positioning seat;

the positioning seat includes a first face, a second face, and a third face;

a first LED element, a second LED element, and a third LED element are located on the first face, the second face, and the third face, respectively; and

each of the first LED element, the second LED element, and the third LED element is adapted to emit light of a different color.