LONG DISTANCE HIGH INTENSITY LED LIGHT WITH ADJUSTABLE FOCUS

• US 20140321135A1
• Filed: 04/25/2014
• Published: 10/30/2014
• Est. Priority Date: 04/26/2013
• Status: Active Grant

• Current Assignee: Main Harbour International Limited
• Original Assignee: Main Harbour International Limited
• Inventors: CHEN, Kaizhi, TSE, Glenn Mankit
• Granted Patent: US 9,695,993 B2
• Time in Patent Office: Days
• US Class Current: 362/487
• CPC Class Codes: B60Q 1/0483 mounted on a bracket, e.g. details concerning the mouting of the lamps on the vehicle body
• CPC Class Codes: B60Q 1/085 due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers B60Q1/10, B60Q1/12, B60Q1/1423 take precedence
• CPC Class Codes: B60Q 1/12 due to steering position
• CPC Class Codes: B60Q 1/20 Fog lights
• CPC Class Codes: B60Q 1/245 Searchlights, e.g. adjustable from within the vehicle adjustable headlights B60Q1/06
• CPC Class Codes: B60Q 1/2611 Indicating devices mounted on the roof of the vehicle
• CPC Class Codes: B60Q 2300/122 Steering angle
• CPC Class Codes: B60Q 2300/41 preceding vehicle
• CPC Class Codes: B60Q 2300/42 oncoming vehicle
• CPC Class Codes: F21K 9/68 Details of reflectors forming part of the light source
• CPC Class Codes: F21S 41/143 the main emission direction of the LED being parallel to the optical axis of the illuminating device
• CPC Class Codes: F21S 41/153 arranged in a matrix
• CPC Class Codes: F21S 41/255 Lenses with a front view of circular or truncated circular outline
• CPC Class Codes: F21S 41/635 by moving refractors, filters or transparent cover plates
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/27 Attachment thereof
• CPC Class Codes: F21S 45/50 Waterproofing
• CPC Class Codes: F21S 8/003 Searchlights, i.e. outdoor lighting device producing powerful beam of parallel rays, e.g. for military or attraction purposes searchlights mounted on a vehicle B60Q1/245
• CPC Class Codes: F21V 14/06 by movement of refractors in vehicle head lamps F21S41/635
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 23/045 : the sensor receiving a signal from a remote controller
• CPC Class Codes: F21V 9/40 : with provision for controlling spectral properties, e.g. colour, or intensity
• CPC Class Codes: F21W 2107/20 : for water vehicles
• CPC Class Codes: F21W 2131/107 : of the exterior of buildings
• CPC Class Codes: F21Y 2105/10 : comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 : Light-emitting diodes [LED]

Abstract

The present invention provides a lighting device comprising (i) one or more LED chips positioned on one or more LED chip bases; (ii) one or more lens bases each of which comprises one or more lenses, said lens comprises coatings for changing color temperature of the light produced by said LED chips and transmitted through said lens; and (iii) a motion transmission system to change the position of said lens bases relative to said LED chip bases, wherein each of said lenses is placed along the light path of one or more LED chips, and said lens changes the light beam cone angle of light emitted from said LED chips to produce long distance high intensity illumination. In one embodiment, the lens bases can be moved in a direction parallel to the optical axes of said lens, or moved on a plane that is parallel to said LED chip bases.

Claims

1. A lighting device comprising:

a. one or more LED chip bases each of which comprises one or more LED chips;

b. one or more lens bases each of which comprises one or more lenses, said lens comprises coatings for changing the color temperature of light emitted by said LED chips and transmitted through said lens; and

c. a motion transmission system to change the position of said lens bases relative to said LED chip bases, wherein each of said lenses is placed along the light path of one or more LED chips, and said lenses change the light beam cone angle of light emitted from said LED chips to produce long distance high intensity illumination.

2. The device of claim 1, wherein said device comprises 1, 3, 6, 7, 9, 14, 18 or 36 LED chips.

3. The device of claim 1, wherein the light beam cone angle is from about 1°

to about 80°

.

4. The device of claim 1, wherein said motion transmission system is driven manually or by a motorized mechanism.

5. The device of claim 1, wherein said motion transmission system is controlled by a wired or wireless remote control device.

6. The device of claim 1, wherein said motion transmission system moves said lens bases in a direction parallel to the optical axes of said lenses.

7. The device of claim 1, wherein said motion transmission system includes a shock-resistant configuration comprising (i) a motor comprising a cover and a shaft, said shaft comprises a flat surface on one side, and (ii) a driving bolt with an inner hole, the shape of said inner hole matches the cross-sectional shape of said shaft, wherein said shaft is coupled to said bolt through said inner hole, wherein rotational force is directly transmitted from the shaft to the driving bolt while lateral force in the direction of the shaft is transmitted onto the cover of the motor.

8. The device of claim 1, wherein said motion transmission system comprises (i) a driving bolt which is coupled to a lens base at one end and connected to a plurality of first magnets at the other end, and (ii) a hand wheel comprising a plurality of second magnets, said second magnets are of opposite polarity to said first magnets and are positioned opposite to said first magnets, wherein rotating said hand wheel would rotate said driving bolt through magnetic interaction between said first and second magnets, thereby moving the lens base in a direction parallel to the optical axes of said lenses.

9. The device of claim 1, wherein said motion transmission system comprises a hand wheel enveloping a housing that comprises a lens base, said hand wheel comprises a first magnet affixed to the inner wall of said hand wheel, said first magnet is of opposite polarity to a second magnet and is positioned opposite to said second magnet which is affixed on said housing, wherein rotating said hand wheel and through magnetic interaction between said first and second magnets, a cam groove will rotate synchronously and move a direction driving pin along a position guiding groove, thereby moving the lens base in a direction parallel to the optical axes of said lenses.

10. The device of claim 9, wherein said cam groove is craved at 30°

to 60°

relative to the optical axes of said lenses, thereby transmitting a major portion of said magnetic interaction to said direction driving pin in the direction of the optical axes of said lenses.

11. The device of claim 1, wherein said motion transmission system moves said lens bases on a plane that is parallel to said LED chip bases.

12. The device of claim 11, wherein said motion transmission system rotates a lens base relative to a LED chip base, thereby placing each of said lenses along the light path of two or more LED chips.

13. The device of claim 12, wherein the device emits light beams in a plurality of colors.

14. The device of claim 12, wherein the device emits light beams in a plurality of directions.

15. The device of claim 1, wherein said motion transmission system comprises a driving gear on a shaft of a motor, said driving gear is coupled to a transmission shaft that is engaged to two or more lens bases, wherein rotation of said driving gear will cause rotation of said transmission shaft, thereby resulting in moving two or more lens bases on a plane that is parallel to said LED chip bases.

16. The device of claim 15, wherein moving said lens bases on a plane that is parallel to said LED chip bases will cause light transmitted through the lenses on different lens bases to converge into a single spot or separate into a plurality of spots.

17. The device of claim 15, wherein the device comprises 2 or more LED chips on a plurality of LED chip bases.

18. The device of claim 15, wherein the device is used as headlight for an automobile.

19. The device of claim 18, wherein the direction of light emitted from the device can be changed according to the steering direction of the automobile.