Lighting apparatus with color adjustment function

Patent metadata

Field	Value
Publication number	US-11268661-B2
Application number	US-202017017698-A
Country	US
Kind code	B2
Filing date	Sep 11, 2020
Priority date	Sep 29, 2019
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A lighting apparatus includes a first LED module, a second LED module, a third LED module, and a light source plate. The first LED module includes a first package frame disposing a first LED chip and a second LED chip. It is similar to arrange the second LED module and the third LED module. The LED chips are configured to arrange a high color temperature LED chip, a green LED chip, a red LED chip, a blue LED chip, and a low color temperature LED chip together with an antenna module.

First claim

The invention claimed is:

1. A lighting apparatus comprising:
a first LED module, comprising a first package frame disposing one color type LED chip and one first type white LED chip;
a second LED module comprising a second package frame disposing one first type white LED chip and one second type white LED chip;
a third LED module comprising a third package frame disposing one second type white LED;
a light source plate for mounting the first LED module, the second LED module and the third LED module,
wherein the first type white LED chip emits a first white light of a first color temperature, the second type white LED chip emits a second white light of a second color temperature, the first color temperature is higher than the second color temperature, the color type LED chip is selected from a red LED chip, a blue LED chip and a green LED chip; and
an antenna module disposed at a center of the light source plate, wherein the antenna has a protruding part from the light source plate, the first LED module, the second LED module and the third LED module are disposed surrounding the antenna module, wherein the antenna module receives an external command from an external device via the antenna module to activate an eye protection mode for lowering a light intensity of blue LED chip from the first LED module.

2. The lighting apparatus of claim 1 , wherein the antenna module has a reflective layer for reflecting a light of the first LED module, the second LED module and the third LED module.

3. The lighting apparatus of claim 1 , wherein a fluorescent layer is disposed on the antenna module.

4. The lighting apparatus of claim 1 , wherein the antenna module has a fourth LED module.

5. The lighting apparatus of claim 4 , wherein the fourth LED module emits a light to a light guide of the antenna module.

6. The lighting apparatus of claim 1 , wherein a driver circuit is attached on the antenna module.

7. The lighting apparatus of claim 1 , wherein the antenna module receives an external command of an external device from the antenna module to activate a sleep mode for lowering a light intensity of the blue LED chip and increasing a light intensity of the red LED device of the first LED module.

8. The lighting apparatus of claim 1 , wherein the antenna module receives an external command of an external device from the antenna module to activate a color rendering mode optimized for an object type by controlling light intensity parameters of the first LED module, the second LED module and the third LED module.

9. The lighting apparatus of claim 1 , wherein the first type white LED chips of the first LED module and the second LED module are connected and controlled at the same time, the second type white LED chips of the second LED module and the third LED module are connected and controlled at the same time.

10. The lighting apparatus of claim 1 , wherein there are three first LED modules respectively containing a different color type LED chip.

11. The lighting apparatus of claim 10 , wherein a total numbers of the second LED module and the third LED module are the same as a total number of the first LED modules.

12. The lighting apparatus of claim 10 , wherein multiple first LED modules are surrounded by the multiple second LED modules and the multiple third LED modules.

13. The lighting apparatus of claim 1 , wherein a driver is used for supplying driving currents to the first LED module, the second LED module and the third LED module with a PWM circuit, one LED chip of the first LED module, the second LED module and the third LED module is turned off when the other LED chip of the first LED module, the second LED module and the third LED module is turned on.

14. The lighting apparatus of claim 1 , wherein the package frame has a metal pad for mounting the first LED chip has an inwardly concave corner.

15. The lighting apparatus of claim 14 , wherein two LED chips of the first LED module, the second LED module and the third LED module have independent conductive paths connecting to a driver.

16. The lighting apparatus of claim 1 , wherein the first color temperature of the first type white LED chip is between 3500K to 6500K and the second color temperature of the second type white LED chip is between 500K to 3000K.

17. The lighting apparatus of claim 1 , further comprising a manual switch for manually disabling a portion of the first color type LED chip, the first type white LED chip, and the second type white LED chip.

18. The lighting apparatus of claim 17 , wherein the antenna module receives an external command to force re-activate the disabled the LED chips configured by the manual switch.

Assignees

• Xiamen Leedarson Lighting Co Ltd

Inventors

• Chen Yanbiao
• Jiang Hongkui

Classifications

• H10W90/00

  Package configurations · CPC title

• Y02B20/40

  Control techniques providing energy savings, e.g. smart controller or presence detection · CPC title

• H10H20/8512

  Wavelength conversion materials · CPC title

• F21Y2113/13

  comprising an assembly of point-like light sources · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title