Unlock instant, AI-driven research and patent intelligence for your innovation.

Light sensor testing device and method

A light sensor, electronic device technology, applied in the direction of measuring device, photometry, optical radiation measurement, etc., can solve the problems of waste, flash screen, return or exchange, etc.

Active Publication Date: 2015-03-25
SHANGHAI CHANGLIAN ZHIRONG COMM TECH
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above problems, when the ambient brightness does not change, but the output of the light sensor changes up and down, the brightness of the backlight is also adjusted continuously, making consumers feel that there is a flickering phenomenon, thinking that there is a problem with the display screen, which leads to Returning or exchanging goods, etc., causing unnecessary waste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light sensor testing device and method
  • Light sensor testing device and method
  • Light sensor testing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] see figure 1 As shown, the device for testing the light sensor of the present invention is used to test the performance of the light sensor of the electronic device. The device for testing the light sensor includes a storage unit, a light source located inside the storage unit, and a light source connected to the light source A brightness control unit and a data acquisition module for collecting the output value of the light sensor under test.

[0017] In practice, the above storage unit is a box made of copper, aluminum or iron, with a cover on the front that can be opened, and is airtight and opaque when closed. The light source can be an illuminating lamp (such as an LED lamp), which is arranged on the top of the storage unit, and the power supply line of the light source is drawn from the storage unit and connected with the light source brightness control unit, which provides the light source power and controls the light source. The output intensity of the light so...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a light sensor testing device and method used for testing the performance of a light sensor of an electronic device. The light sensor testing device comprises a containing unit, a light source, a light source brightness control unit and a data collecting module, wherein the light source is arranged inside the containing unit, the light source brightness control unit is connected with the light source, and the data collecting module is used for collecting output values of the tested light sensor. According to the light sensor testing device and method, the brightness of the light source is linearly changed through the light source brightness control unit; meanwhile, the output values of the tested light sensor are collected, and whether the performance of the light sensor is stable or abnormal is judged by judging whether the output values of the tested light sensor are linear or not.

Description

【Technical field】 [0001] The invention belongs to the field of electronic testing, in particular to a testing device for testing light sensors. 【Background technique】 [0002] Existing mobile phones or tablet terminal devices basically have a light sensor, which has become a standard function of smart phones or tablets. [0003] However, due to some performance reasons, the output of some light sensors is not stable under certain ambient light, resulting in flickering of the screen backlight when the automatic backlight brightness adjustment mode is turned on. The working principle of the mobile phone with the automatic adjustment of backlight brightness mode turned on is that when the light sensor detects that the brightness of the external environment becomes brighter, the software controls the backlight chip to adjust the brightness of the backlight to allow consumers to clearly see the display content; There should be no change in the light sensor output, and thus no ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/00
Inventor 姚军徽
Owner SHANGHAI CHANGLIAN ZHIRONG COMM TECH