Modulated LED light tube

• US 20130258656A1
• Filed: 05/19/2011
• Published: 10/03/2013
• Est. Priority Date: 05/19/2011
• Status: Abandoned Application

• Current Assignee: Huei-Dung Chin
• Original Assignee: Huei-Dung Chin
• Inventors: Chin, Huei-Dung
• Application Number:
  US13/110,949
• Publication Number:
  US 20130258656A1
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• CPC Class Codes: F21K 9/60 Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
• CPC Class Codes: F21K 9/66 Details of globes or covers forming part of the light source
• CPC Class Codes: F21K 9/68 Details of reflectors forming part of the light source
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 13/08 the elements being filters or photoluminescent elements and reflectors
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21V 3/049 Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21V 7/24 characterised by the material
• CPC Class Codes: F21V 7/28 characterised by coatings
• CPC Class Codes: F21Y 2101/00 Point-like light sources
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The present disclosure generally relates a light tube assembly of a LED, especially the LED light tube with light modulation. Moreover, the LED light tube is similar to T8, T9 fluorescent lamp, which use at general lighting. Present disclosure proposes variants design for accomplishing light uniformity and efficiency, which proposes different features in light modulating in LED light tube assembly. The features include a reflection plate, reflector, secondary lens and LED dome lens shape etc. Present disclosure include a higher power of the LED device apply on the embodiment, which for complexity and cost reduction. In present disclosure, a variant type of power source feed in, where from the outside of the LED light tube, which could prolong the life of LED tube. Present disclosure further comprises variety features, which provide high efficiency and uniformity. Present disclosure preferably modulates LED light to batwing distribution.

Claims

1. A LED light tube, comprising:

a circuit board, which the circuit scheme are disposed on the circuit board, and thermal resistance of the circuit board is properly low;

a plurality of LED devices, which has a heat slug for heat dispersion under the LED die and connect to the circuit board, and the LED devices are located as thread line and separated with adapted distance, and which the current of each the LED devices is operated approximately 60 mA or higher;

a tube base, which is made by high thermal conductivity material, whereon the tube base with a planar surface for adopted the circuit board;

a light reflection plate, which dispose on the tube base, where aside the circuit board, and the light reflection plate with high reflective surface, which could modulate the light emit from the LED devices;

a diffusible plate, which dispose on the edge of the LED light tube, and opposing the circuit board and the LED devices, which for dispersing the light emit from the LED devices;

a one or plurality of plugs, which for electric power feed in the LED light tube;

a power source, which provide the electrical power from the outside of the LED light tube, the power source can be a AC-DC converter which provide electricity through the plugs to the LED light tube, and light the LED light tube properly; and

the diffusible plate, wherein dispose on the LED device with a proper separated distance, when lighting the LED light tube, which emitting light from the LED device pass through the surface of the diffusible plate, which the surface of the diffusible plate are formed as a light stripe uniformly, that make the human eyes will see the light stripe without any light spot or discontinuity.

2. The LED light tube of claim 1, wherein the circuit board is made as high thermal conductivity material, such as Al or copper, or a FPCB, which has a thickness approximately 1 mil. alternatively.

3. The LED light tube of claim 1, wherein the light reflection plate is made by high reflective metal foil or plastic thin plate, and the light reflection plate could further include high reflective coating to enhance light efficiency or include a curved shape to enhance the light modulation.

4. The LED light tube of claim 1, wherein the LED devices which emitting surface further comprising a transparent dome shape as a light modulation apparatus, which to converge the light emit from the LED devices and/or the light modulation apparatus include a specific dome shape such as a dent shape on the top of the transparent dome shape to the modulated the light emit from the LED device as batwing distribution.

5. The LED light tube of claim 1, wherein the LED devices further mount a light reflector or a secondary lens as a light modulation apparatus, to converge the light emit from the LED devices and/or modulated the light emit from the LED devices as batwing distribution.

7. The LED light tube of claim 1, wherein the power source is AC power electricity, with the circuit board is designed and electrical device disposed on properly, which the AC power electricity from the grid could feed in the LED light tube directly.

8. A uniform LED light tube, comprising:

a circuit board, which the circuit scheme are disposed on the circuit board, and thermal resistance of the circuit board is properly low;

a plurality of LED devices, which has a heat slug for heat dispersion under the LED die and connect to the circuit board, and the LED devices are located as thread line and separated with adapted distance, and which the current of each the LED devices is operated approximately 60 mA or higher;

a light modulation apparatus, which dispose on the LED devices respectively, and modulate the light emit from the LED devices;

a tube base, which is made by high thermal conductivity material, whereon the tube base with a planar surface for adopted the circuit board;

a diffusible plate, which dispose on the edge of the LED light tube, and opposing the circuit board and the LED devices, which for dispersing the light emit from the LED devices;

a one or plurality of plugs, which for electric power feed in the LED light tube;

a power source, which provide the electrical power from the outside of the LED light tube, the power source can be a AC-DC converter which provide electricity through the plugs to the LED light tube, and light the LED light tube properly; and

the diffusible plate, wherein dispose on the LED device with a proper separated distance, when lighting the LED light tube, which emitting light from the LED device pass through the surface of the diffusible plate, which the surface of the diffusible plate are formed as a light stripe uniformly, that make the human eyes will see the light stripe without any light spot or discontinuity.

14. The power source of claim 22, wherein the power source is AC power electricity, with the circuit board is designed and electrical device disposed on properly, which the AC power electricity from the grid could feed in the LED light tube directly.

6. The light modulation apparatus of claim 10, which could include the LED dome shape, reflector and the secondary lens, combine above two or all the apparatus, to converge the light emit from the LED devices and/or modulated the light emit from the LED devices as batwing distribution in advance.

9. The uniform LED light tube of claim 13, wherein the circuit board is made by high thermal conductivity material, such as Al or copper, and also could be as FPCB, which thickness is about 1 mil or thinner.

10. The uniform LED light tube of claim 14, wherein the light modulation apparatus is disposed on the emitting surface of the LED devices, and further comprising a transparent dome shape as a light modulation apparatus, which to converge the light emit from the LED devices and/or the light modulation apparatus include a specific dome shape such as a dent shape on the top of the transparent dome shape to the modulated the light emit from the LED device as batwing distribution.

11. The uniform LED light tube of claim 14, wherein the light modulation apparatus further include a secondary lens or a light reflector, which dispose on the LED device to converge the light emit from the LED devices and/or modulated the light emit from the LED devices as batwing distribution.

13. The uniform LED light tube of claim 14, wherein further include a light reflection plate, which is made by high reflective metal foil or plastic thin plate, and the light reflection plate could further include high reflective coating to enhance light efficiency or include a curved shape to enhance the light modulation.

15. A indirect lighting LED light tube, comprising:

a circuit board, which the circuit scheme are disposed on the circuit board, and thermal resistance of the circuit board is properly low;

a plurality of LED devices, which has a heat slug for heat dispersion under the LED die and connect to the circuit board, and the LED devices are located as thread line and separated with adapted distance, and which the current of each the LED devices is operated approximately 60 mA or higher;

a tube base, which is made by high thermal conductivity material, whereon the tube base with a planar surface for adopted the circuit board;

a light reflection plate, which dispose on the tube base has pre-design curve, where the surface of the light reflection plate reflect the light emit from the LED devices properly, and the light reflection plate with high reflective surface, which change the light propagation direction, which emit from the LED devices;

a one or plurality of plugs, which for electric power feed in the LED light tube;

a power source, which provide the electrical power from the outside of the LED light tube, the power source can be a AC-DC converter which provide electricity through the plugs to the LED light tube, and light the LED light tube properly; and

the diffusible plate, wherein dispose on the LED device with a proper separated distance, when lighting the LED light tube, which emitting light from the LED device pass through the surface of the diffusible plate, which the surface of the diffusible plate are formed as a light stripe uniformly, that make the human eyes will see the light stripe without any light spot or discontinuity.

16. The indirect lighting LED light tube of claim 25, wherein the light reflection plate, which is made by high reflective metal foil or plastic thin plate, and the light reflection plate could further include high reflective coating to enhance light efficiency or include a curved shape to enhance the light modulation.

17. The indirect lighting LED light tube of claim 25, whereon the LED devices which emitting surface further comprising a transparent dome shape as a light modulation apparatus, which to converge the light emit from the LED devices and/or the light modulation apparatus include a specific dome shape such as a dent shape on the top of the transparent dome shape to the modulated the light emit from the LED device as batwing distribution.

18. The indirect lighting LED light tube of claim 25, wherein the LED devices further mount a light reflector or a secondary lens, as a light modulation apparatus, to converge the light emit from the LED devices and/or modulated the light emit from the LED devices as batwing distribution.

19. The indirect lighting LED light tube of claim 25, wherein the light modulation apparatus which could include the LED dome shape, reflector and the secondary lens, combine above two or all the apparatus, to converge the light emit from the LED devices and/or modulated the light emit from the LED devices as batwing distribution in advance.

20. The indirect lighting LED light tube of claim 25, wherein the power source is AC power electricity, with the circuit board is designed and electrical device disposed on properly, which the AC power electricity from the grid could feed in the LED light tube directly.

12. The light modulation apparatus of claim 20, which the LED devices could apply the LED dome shape, reflector and the secondary lens, combining above two or all apparatus to converge the light emit from the LED devices and/or modulated the LED device light as batwing distribution in advance.