Car LED light capable of changing color temperature

• US 9,829,168 B2
• Filed: 02/18/2016
• Issued: 11/28/2017
• Est. Priority Date: 02/18/2016
• Status: Active Grant

• Current Assignee: Chung-Chun Yen
• Original Assignee: Chung-Chun Yen
• Inventors: Yen, Chung-Chun
• Primary Examiner(s): Labaze, Edwyn
• Application Number:
  US15/046,570
• Publication Number:
  US 20170241610A1
• Time in Patent Office: 649 Days
• Field of Search: 362487, 362545, 362509, 36221701, 362235
• CPC Class Codes: F21S 41/125 Coloured light
• CPC Class Codes: F21S 41/141 Light emitting diodes [LED]
• CPC Class Codes: F21S 41/255 Lenses with a front view of circular or truncated circular outline
• CPC Class Codes: F21S 41/285 Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
• CPC Class Codes: F21S 41/321 the reflector being a surface of revolution or a planar surface, e.g. truncated
• CPC Class Codes: F21S 41/39 Attachment thereof achieving variable light distribution by movable reflectors F21S41/675
• CPC Class Codes: F21S 41/635 by moving refractors, filters or transparent cover plates
• CPC Class Codes: F21V 14/08 by movement of the screens or filters
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A car LED light capable of changing color temperature includes a lamp holder. A front side of the lamp holder is provided with a concave trough and formed with an opening. The lamp holder is provided with an LED module in the concave trough. The LED module has a beam angle θ. A color temperature change unit is provided in front of the LED module and includes a drive member. The drive member is connected with a light filter and drives the light filter to move relative to the LED module. Through the drive member, the light filter is selectively to be in front of the beam angle θ for changing the color temperature of the light emitted from the LED module; or the light filter is selectively to be away from the range of the beam angle θ for keeping the original color temperature of the light.

Claims

1. A car LED light capable of changing color temperature, comprising a lamp holder, a front side of the lamp holder being provided with a concave trough and formed with an opening, the lamp holder being provided with an LED module in the concave trough, characterized by:

the LED module 20 having a beam angle θ

;

a color temperature change unit disposed on the lamp holder and located close to the LED module, the color temperature change unit comprising a drive member, the drive member being connected with at least one light filter and able to drive the light filter to move relative to the LED module, the light filter being located in front of the beam angle θ

, the light filter having a area greater than the beam angle θ

;

thereby, through the drive member, the light filter being selectively driven to be in front of the beam angle θ

, enabling the light emitted from the LED module to be first filtered by the light filter to radiate toward a front of the lamp holder, or the light filter being selectively driven to be away from the range of the beam angle θ

, enabling the light emitted from the LED module to radiate toward the front of the lamp holder directly, not filtered by the light filter;

the lamp holder being provided with a reflection board on an inner wall of the concave trough, and the beam angle θ

of the LED module facing the reflection board; and

the lamp holder being provided with a retaining board on the inner wall of the concave trough, one side of the retaining board, facing the reflection board, being defined as a first side and another side being defined as a second side, and the LED module being disposed at the first side of the retaining board.

2. The car LED light capable of changing color temperature as claimed in claim 1, wherein a distance between the light filter and the LED module is less than 2 cm.

3. The car LED light capable of changing color temperature as claimed in claim 1, wherein the drive member is disposed at the second side of the retaining board, the drive member is connected with one end of a C-shaped connecting rod, another end of the C-shaped connecting rod is bent and extends to the first side of the retaining board and is further connected with the light filter, and the light filter is located between the reflection board and the LED module.

4. The car LED light capable of changing color temperature as claimed in claim 1, wherein the drive member is connected with a turning frame, the turning frame is located in front of the beam angle θ

of the LED module, the turning frame has a plurality of spaced accommodation spaces for securing the light filter, and the drive member drives the turning frame to turn relative to the LED module, such that the accommodation spaces pass through the front of the beam angle θ

in sequence.

5. The car LED light capable of changing color temperature as claimed in claim 4, wherein the accommodation spaces each is provided with the light filter, the light filters of the accommodation spaces are in different colors, and at least one of the light filters is transparent.

6. The car LED light capable of changing color temperature as claimed in claim 1, further comprising a light blocking unit, the light blocking unit being disposed at the opening of the lamp holder and located in front of the color temperature change unit.

7. The car LED light capable of changing color temperature as claimed in claim 6, further comprising a lens, the lens being disposed in front of the light blocking unit to cover the opening.

8. A car LED light capable of changing color temperature, comprising a lamp holder, a front side of the lamp holder being provided with a concave trough and formed with an opening, the lamp holder being provided with an LED module in the concave trough, characterized by:

the LED module 20 having a beam angle θ

;

a color temperature change unit disposed on the lamp holder and located close to the LED module, the color temperature change unit comprising a drive member, the drive member being connected with at least one light filter and able to drive the light filter to move relative to the LED module, the light filter being located in front of the beam angle θ

, the light filter having a area greater than the beam angle θ

;

thereby, through the drive member, the light filter being selectively driven to be in front of the beam angle θ

, enabling the light emitted from the LED module to be first filtered by the light filter to radiate toward a front of the lamp holder, or the light filter being selectively driven to be away from the range of the beam angle θ

, enabling the light emitted from the LED module to radiate toward the front of the lamp holder directly, not filtered by the light filter;

the drive member being connected with a turning frame, the turning frame being located in front of the beam angle θ

of the LED module, the turning frame having a plurality of spaced accommodation spaces for securing the light filter, and the drive member driving the turning frame to turn relative to the LED module, such that the accommodation spaces pass through the front of the beam angle θ

in sequence.

9. The car LED light capable of changing color temperature as claimed in claim 8, wherein a distance between the light filter and the LED module is less than 2 cm.

10. The car LED light capable of changing color temperature as claimed in claim 8, wherein the lamp holder is provided with a reflection board on an inner wall of the concave trough, and the beam angle θ

of the LED module faces the reflection board.

11. The car LED light capable of changing color temperature as claimed in claim 10, wherein the lamp holder is provided with a retaining board on the inner wall of the concave trough, one side of the retaining board, facing the reflection board, is defined as a first side and another side is defined as a second side, and the LED module is disposed at the first side of the retaining board.

12. The car LED light capable of changing color temperature as claimed in claim 11, wherein the drive member is disposed at the second side of the retaining board, the drive member is connected with one end of a C-shaped connecting rod, another end of the C-shaped connecting rod is bent and extends to the first side of the retaining board and is further connected with the light filter, and the light filter is located between the reflection board and the LED module.

13. The car LED light capable of changing color temperature as claimed in claim 8, wherein the accommodation spaces each is provided with the light filter, the light filters of the accommodation spaces are in different colors, and at least one of the light filters is transparent.

14. The car LED light capable of changing color temperature as claimed in claim 8, further comprising a light blocking unit, the light blocking unit being disposed at the opening of the lamp holder and located in front of the color temperature change unit.

15. The car LED light capable of changing color temperature as claimed in claim 14, further comprising a lens, the lens being disposed in front of the light blocking unit to cover the opening.