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Electronics module including ambient light sensor stacked above proximity sensor

A technology of ambient light sensor and proximity sensor, which is applied in the direction of electrical equipment shell/cabinet/drawer, using electric radiation detectors for photometry, instruments, etc., which can solve the problems of increasing device complexity, cost and size, etc.

Active Publication Date: 2021-12-21
STMICROELECTRONICS (RES & DEV) LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Ambient light sensors and proximity sensors are often part of separate electronic modules, adding to the complexity, cost and size of the unit

Method used

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  • Electronics module including ambient light sensor stacked above proximity sensor
  • Electronics module including ambient light sensor stacked above proximity sensor
  • Electronics module including ambient light sensor stacked above proximity sensor

Examples

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Embodiment Construction

[0066] Concepts associated with the following embodiments relate to the integration of an ambient light sensor and a proximity sensor in an electronic module no larger than a conventional proximity sensor. Additionally, the stacking approach used here ensures that all or at least some of the following requirements are met:

[0067] - The field of view of the infrared photoelectric transmitter is not obstructed;

[0068] - The field of view of the infrared photodetector is not obstructed;

[0069] - The field of view of the ambient light sensor is unobstructed;

[0070] - The infrared photodetector is optically isolated from the infrared photoemitter;

[0071] - There is a direct optical path between the reference infrared photodetector and the infrared photoemitter;

[0072] - photons of ambient light received by the reference infrared photodetector are substantially blocked to protect the reference infrared photodetector from saturation;

[0073] - the size of the package...

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Abstract

An electronic module including an ambient light sensor stacked above a proximity sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor includes an ambient light photodetector. The proximity sensor includes an infrared photoemitter, a reference infrared photodetector and another infrared photodetector. The ambient light sensor is arranged in the stack above the proximity sensor at a location that allows infrared photons emitted by the infrared photoemitter to be received by the reference infrared photodetector.

Description

[0001] priority statement [0002] This application claims priority from European Patent Application No. 18305439.4 filed on April 11, 2018, the contents of which are hereby incorporated by reference in their entirety to the fullest extent permitted by law. technical field [0003] The invention relates to an electronic module and a device comprising such an electronic module. Background technique [0004] Some devices (eg, mobile phones, tablets, laptops, desktop computers, video game consoles, smart card readers, video cameras, televisions, vehicles, etc.) are equipped with ambient light sensors and proximity sensors to assist in the operation of the camera. For example, an ambient light sensor can be used to trigger a camera's flash or to adjust the camera's brightness. Proximity sensors can be used to detect the presence of an object, measure the distance to the object, and adjust the position of the camera lens to capture the object in focus. [0005] Ambient light s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02H01L25/04H05K5/00G01S17/04
CPCH05K5/00H01L25/04G01D21/02G01S17/04G01J1/4204G01J1/44G01J2001/4466G01S7/481H04N23/55
Inventor W·哈利迪E·索吉尔R·达菲
Owner STMICROELECTRONICS (RES & DEV) LTD