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Ambient light detection device

A technology of ambient light detection and ambient light, which is applied in the field of optics, can solve problems such as inability to meet measurement requirements and low accuracy of ambient light, and achieve the effects of high speed, high accuracy, and high stability

Active Publication Date: 2020-12-29
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in related technologies, the accuracy of measured parameters such as the color of ambient light is low, which cannot meet the measurement requirements.

Method used

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Embodiment Construction

[0040] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0041] figure 1 It is a schematic structural diagram of an ambient light detection device according to an exemplary embodiment. Such as figure 1 As shown, the device can be used in terminals with display screens such as mobile phones and computers. The device includes: a first circular polarizer 11 , a first multi-channel color sensor 12 , a second circular polarizer 13 , a second m...

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Abstract

The invention relates to an ambient light detection device. The device comprises a first circular polarizer, a beam splitter prism, a second circular polarizer, a first multi-channel color sensor, a second multi-channel color sensor and a processor, wherein the first circular polarizer is located above a display screen and covers the display screen, the beam splitter prism is located below the display screen, and the second circular polarizer is located below the display screen and located on a transmission path of the beam splitter prism; the first multi-channel color sensor is located on a reflection path of the beam splitter prism and used for receiving first target light reflected by the beam splitter prism and performing data acquisition on the first target light to obtain a first ambient light response value; the second multi-channel color sensor is located below the second circular polarizer and used for performing data acquisition on received second target light to obtain a second ambient light response value; and the processor is used for determining parameters of ambient light according to the obtained first ambient light response value and second ambient light response value. According to the device, target light detection is performed through the two multi-channel sensors, and the determined parameters of the ambient light are high in accuracy, stability and speed.

Description

technical field [0001] The present disclosure relates to the field of optical technology, in particular to an ambient light detection device. Background technique [0002] In related technologies, parameters such as the color of ambient light can be detected by traditional color sensors, where traditional color sensors generally include RGB color sensors or XYZ color sensors. With the development trend of consumer electronics products, the screen-to-body ratio is getting larger and larger, and sensors and cameras have begun to develop off-screen technology. However, in the related art, the accuracy of measured parameters such as the color of the ambient light is low, which cannot meet the measurement requirements. Contents of the invention [0003] In order to overcome the problems existing in the related art, the present disclosure provides an ambient light detection device. [0004] According to the first aspect of the embodiments of the present disclosure, there is pr...

Claims

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Application Information

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IPC IPC(8): G01J3/46G01J1/00G01J1/04
CPCG01J3/46G01J1/00G01J1/0407
Inventor 李洪鹏
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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