Ambient light sensor, light transmission analysis method, and system thereof

Patent metadata

Field	Value
Publication number	US-11221252-B2
Application number	US-201816195269-A
Country	US
Kind code	B2
Filing date	Nov 19, 2018
Priority date	Jun 26, 2018
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

An electronic device includes a processor and a memory. The processor obtains a group of original specification data of an ambient light sensor, obtains a group of testing data of the ambient light sensor, combines the group of original specification data with the group of testing data to obtain a group of combined data, and analyzes the group of combined data according to a source of the plurality of data and a corresponding wavelength of the plurality of data to obtain a spectral hand table and a channel distribution table of the ambient light sensor.

First claim

What is claimed is:

1. A light transmission analysis method implemented in an ambient light sensor, the method comprising:
obtaining a group of original specification data of the ambient light sensor;
obtaining a group of testing data of the ambient light sensor from testing light onto the ambient light sensor emitted by light sources with different wavelengths;
combining the group of original specification data with the group of testing data to obtain a group of combined data, the group of combined data comprising a plurality of data; and
analyzing the group of combined data according to a source of the plurality of data and a corresponding wavelength of the plurality of data to obtain a spectral band table and a channel distribution table of the ambient light sensor comprising:
obtaining, from the group of combined data, the plurality of data corresponding to one of a plurality of photosensitive channels of the ambient light sensor, the plurality of data originating from the group of original specification data; wherein each piece of testing data comprises a plurality of detection values of the plurality of photosensitive channels;
wherein the light sources with different wavelengths define the specification data and testing data to be one in the same, the source of the plurality of data is from the group of original specification data or the group of testing data, the group of original specification data or the group of testing data both comprises a number of data of the plurality of photosensitive channels, the corresponding wavelength of the plurality of data of each photosensitive channel of the ambient light sensor is read from the original specification data.

2. The light transmission analysis method of claim 1 , further comprising:
generating a plurality of channels of the testing light in sequence to emit onto the ambient light sensor to obtain the group of testing data;
wherein the plurality of channels of testing light are each a narrow wave width test light.

3. The light transmission analysis method of claim 2 , wherein a wavelength of the plurality of channels of testing light is between 400 nanometers and 1000 nanometers.

4. The light transmission analysis method of claim 3 , wherein the plurality of channels of testing light are in the visible light spectrum.

5. The light transmission analysis method of claim 1 , wherein the step of analyzing the group of combined data according to a source of the plurality of data and a corresponding wavelength of the plurality of data to obtain the spectral band table and the channel distribution table of the ambient light sensor further comprises:
calculating, according to the obtained plurality of data, an optical path reference value of the ambient light sensor.

6. The light transmission analysis method of claim 5 , further comprising:
calculating, according to the optical path reference value and the plurality of data originating from the group of testing data of the group of combined data, channel data corresponding to each photosensitive channel;
determining, according to a calibration rule, whether the channel data has an error; and
recording the channel data when the channel data has no error.

7. The light transmission analysis method of claim 6 , further comprising:
recalculating, according to the optical path reference value and the plurality of data originating from the group of testing data of the group of combined data, the channel parameter corresponding to each photosensitive channel when the channel data has an error.

8. The light transmission analysis method of claim 6 , further comprising:
categorizing the channel data according to each channel and color;
analyzing a largest value and a smallest value of the channel data and calculating a coordinate point range and coordinate point density according to the largest value and the smallest value; and
plotting the channel data on a graph according to the coordinate point range and the coordinate point density.

9. The light transmission analysis method of claim 8 , wherein the graph comprises at least one plot line corresponding to the group of testing data and at least one default plot line according to the group of original specification data.

10. The electronic device of claim 2 , wherein a wavelength of the plurality of channels of testing light between 400 nanometers and 1000 nanometers.

11. The electronic device of claim 10 , wherein the plurality of channels of testing light are in the visible light spectrum.

12. An electronic device comprising:
a processor; and
a memory configured to store a plurality of instructions, when the plurality of instructions executed by the processor, cause the processor to:
obtain a group of original specification data of the ambient light sensor;
obtain a group of testing data of the ambient light sensor from testing light onto the ambient light sensor emitted by light sources with different wavelengths;
combine the group of original specification data with the group of testing data to obtain a group of combined data, the group of combined data comprising a plurality of data; and

analyze the group of combined data according to a source of the plurality of data and a corresponding wavelength of the plurality of data to obtain a spectral band table and a channel distribution table of the ambient light sensor comprising:
obtaining, from the group of combined data, the plurality of data corresponding to one of a plurality of photosensitive channels of the ambient light sensor, the plurality of data originating from the group of original specification data; wherein each piece of testing data comprises a plurality of detection values of the plurality of photosensitive channels;
wherein the light sources with different wavelengths define the specification data and testing data to be one in the same, the source of the plurality of data is from the group of original specification data or the group of testing data, the group of original specification data or the group of testing data both comprises a number of data of the plurality of photosensitive channels, the corresponding wavelength of the plurality of data of each photosensitive channel of the ambient light sensor is read from the original specification data.

13. The electronic device of claim 12 , wherein the instructions further cause the processor to:
generate a plurality of channels of the testing light in sequence to emit onto the ambient light sensor to obtain the group of testing data;

wherein the plurality of channels of testing light are area a narrow wave width test light.

14. The electronic device of claim 12 , wherein the instructions further cause the processor to:
calculate, according to the obtained plurality of data, an optical path reference value of the ambient light sensor.

15. The electronic device of claim 14 , wherein the instructions further cause the processor to:
calculate, according to the optical path reference value and the plurality of data originating from the group of testing data of the group of combined data, channel data corresponding to each photosensitive channel;
determine, according to a calibration rule, whether the channel data has an error; and
record the channel data when the channel data has no error.

16. The electronic device of claim 15 , wherein the instructions further cause the processor to:
recalculate, according to the optical path reference value and the plurality of data originating from the group of testing data of the group of combined data, the channel parameter corresponding to each photosensitiv

Assignees

• Hongfujin Prec Elect Zhengzhou Co Ltd
• Hon Hai Prec Ind Co Ltd

Inventors

• Wang yi-peng
• Zhang Jun-Wei

Classifications

• G01J2001/083

  Testing response of detector · CPC title

• G01J2001/444

  Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting · CPC title

• G01J1/16 Primary

  using electric radiation detectors (G01J1/20 takes precedence) · CPC title

• G01J1/4204

  with determination of ambient light (solar light G01J2001/4266) · CPC title

• G01J1/0228 Primary

  Control of working procedures; Failure detection; Spectral bandwidth calculation · CPC title