IP Library Granted Patent US 10,609,781
Granted Patent B2
US 10,609,781 · App. 16/359,078 · Granted Mar 31, 2020

Ambient light sensing lighting strobe system

Inventors: Wei Cao (Shanghai, CN); Scott Gant (Poway, CA)
Assignee: LITRA, LLC
H05B33/0866H04N5/2256H05B33/0851H05B33/0863H05B37/0218H05B37/0236
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Quick Facts
Patent No.
US 10,609,781
App. No.
16/359,078
Granted
Mar 31, 2020
Kind
B2
Abstract

The disclosed technology relates to a lighting strobe system that utilizes an ambient light sensor to detect an intensity and color temperature of ambient light to set or adjust an intensity and color temperature of light to be emitted by a first array of LEDs and a second array of LEDs. The first array of LEDs may include warm color temperature LEDs having a color temperature of 2400-4000 Kelvin. The second array of LEDs may include cool color temperature LEDs having a color temperature of 4000-8000 Kelvin.

Claims (53)

1. A lighting system, comprising:

a first array of LEDs comprising warm color temperature LEDs having a color temperature of 2400-4000 Kelvin;

a second array of LEDs comprising cool color temperature LEDs having a color temperature of 4000-8000 Kelvin;

wherein the first array of LEDs and the second array of LEDs are configured to emit light in a first direction;

an ambient light sensor configured to detect an intensity and a color temperature of ambient light;

a processor configured to:

receive an output from the ambient light sensor, the output representative of the intensity and color temperature of ambient light; and

adjust, based on the output, an intensity and color temperature of the first array of LEDs and the second array of LEDs.

2. The lighting system of claim 1 , further comprising an LED driver configured to supply current to each of the first array of LEDs and the second array of LEDs.

3. The lighting system of claim 2 , wherein the processor is further configured to independently control, using the LED driver, an amount of current supplied to each of the first array of LEDs and the second array of LEDs.

4. The lighting system of claim 1 , wherein the processor is further configured to:

detect an external pulse of light; and

in response to the detected pulse of light, cause the first array of LEDs and the second array of LEDs to emit a pulse of light.

5. The lighting system of claim 1 , wherein the processor is further configured to:

receive exposure data from a portable electronic device; and

adjust, based on the exposure data, the intensity and color temperature of the first array of LEDs and the second array of LEDs.

6. The lighting system of claim 1 , wherein the processor is further configured to:

receive user input from an application running on a portable electronic device; and

adjust, based on the user input, the intensity and color temperature of the first array of LEDs and the second array of LEDs.

7. The lighting system of claim 1 , wherein the processor is further configured to:

receive a voice command from a user; and

adjust, based on the voice command, the intensity and color temperature of the first array of LEDs and the second array of LEDs.

8. The lighting system of claim 1 , wherein the LEDs of the first array of LEDs and the second array of LEDs are arranged in an alternating pattern.

9. The lighting system of claim 1 , wherein the first array of LEDs and the second array of LEDs are disposed on a first surface of a housing, wherein the housing further comprises a second surface disposed opposite the first surface, wherein the second surface comprises an opening for receiving a portable electronic device.

10. The lighting system of claim 9 , further comprising third array of LEDs and a fourth array of LEDs, wherein the third array of LEDs and the fourth array of LEDs are disposed on the second surface of the housing.

11. The lighting system of claim 10 , wherein the third array of LEDs and the fourth array of LEDs are configured to emit light in a second direction that is opposite the first direction.

12. An electronic device, comprising:

a camera configured to provide exposure data;

a first array of LEDs comprising warm color temperature LEDs having a color temperature of 2400-4000 Kelvin;

a second array of LEDs comprising cool color temperature LEDs having a color temperature of 4000-8000 Kelvin;

an ambient light sensor configured to detect an intensity and a color temperature of ambient light;

a processor configured to:

receive an output from the ambient light sensor, the output representative of the intensity and color temperature of ambient light; and

adjust, based on the output, an intensity and color temperature of the first array of LEDs and the second array of LEDs.

13. The electronic device of claim 12 , wherein the processor is further configured to independently control an amount of current supplied to each of the first array of LEDs and the second array of LEDs.

14. The electronic device of claim 12 , wherein the processor is further configured to:

receive exposure data from the camera; and

adjust, based on the exposure data, the intensity and color temperature of the first array of LEDs and the second array of LEDs.

15. The electronic device of claim 12 , wherein the processor is further configured to:

receive user input from an application running on the electronic device; and

adjust, based on the user input, the intensity and color temperature of the first array of LEDs and the second array of LEDs.

16. The electronic device of claim 12 , wherein the processor is further configured to:

receive a voice command from a user; and

adjust, based on the voice command, the intensity and color temperature of the first array of LEDs and the second array of LEDs.

17. A method for controlling a lighting strobe system, the method comprising:

detecting an intensity of ambient light using an ambient light sensor;

detecting a color temperature of ambient light using the ambient light sensor;

setting an intensity of light to be emitted by a first array of LEDs and a second array of LEDs, the first array of LEDs comprising warm color temperature LEDs having a color temperature of 2400-4000 Kelvin, the second array of LEDs comprising cool color temperature LEDs having a color temperature of 4000-8000 Kelvin;

setting a color temperature of light to be emitted by the first array of LEDs and the second array of LEDs; and

generating a flash using the first array of LEDs and the second array of LEDs based on the set intensity and color temperature.

18. The method of claim 17 , further comprising adjusting the color temperature of light to be emitted by the first array of LEDs and the second array of LEDs based on exposure data.

19. The method of claim 17 , further comprising adjusting the color temperature of light to be emitted by the first array of LEDs and the second array of LEDs based on a voice command.

20. The method of claim 17 , further comprising adjusting the intensity of light to be emitted by the first array of LEDs and the second array of LEDs based on a voice command.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2021
From: LITRA, LLC
To: LOGITECH EUROPE S.A.
Reel/Frame 055145/0011 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2019
From: CAO, WEI; GANT, SCOTT
To: LITRA, LLC
Reel/Frame 048647/0887 →
Continuity (2)
Provisional Application 62646375 · Mar 22, 2018
Related Publication 20190297701A1 · Sep 26, 2019