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Infrared proximity sensor

A technology of proximity sensor and infrared light, which is applied in the direction of lasers, semiconductor lasers, instruments, etc., can solve the problem of reducing the volume or thickness of the sensor, and achieve the effect of reducing the volume

Active Publication Date: 2020-05-22
LITE ON SINGAPORE PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional proximity sensor is equipped with a shielding shell to eliminate the interference of external light (such as lights, sunlight, etc.) and avoid crosstalk. However, the shielding shell cannot effectively reduce the volume or thickness of the sensor

Method used

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Examples

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Embodiment Construction

[0025] The following is a specific example to illustrate the implementation of the "infrared light proximity sensor" disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

[0026] It should be underst...

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Abstract

The invention discloses an infrared light proximity sensor which comprises a substrate, a transmitting unit, a receiving unit, a packaging unit and an isolation unit. The substrate is provided with abearing surface, and the bearing surface is provided with a transmitting end region and a receiving end region opposite to the transmitting end region; the transmitting unit is arranged on the transmitting end region; the receiving unit is arranged on the receiving end region; the packaging unit comprises a first packaging body and a second packaging body, the first packaging body covers the transmitting unit, and the second packaging body covers the receiving unit; the isolation unit is arranged between the first packaging body and the second packaging body, wherein the packaging materials ofthe first packaging body and the second packaging body are infrared light shielding compounds with the penetration rate of 60%-80% in a preset infrared light band. Therefore, the size of the infraredlight proximity sensor can be effectively reduced.

Description

technical field [0001] The present invention relates to a proximity sensor, in particular to an infrared light proximity sensor capable of avoiding cross-talk noise. Background technique [0002] Proximity sensor generally refers to the sensor used to detect the distance of the object. A common example is the proximity sensor on a smartphone. When talking, it can avoid touching the screen by mistake and making wrong operations. The principle of the proximity sensor Mainly by emitting electromagnetic fields or light beams, and analyzing the changes through the receiving unit, it can be judged whether the object is approaching or appearing, leaving or disappearing. [0003] The current smart phone touch screen is getting bigger and bigger, and the frame is getting narrower and narrower, so that the installation area of ​​the installation components is getting smaller and smaller. Currently, the installation components of the touch screen are often equipped with ambient light s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/12
CPCG01V8/12G01J1/0214G01J1/0271G01J1/4204G01S17/04G01S7/4811H01S5/183
Inventor 吴德财李芷谕宋广力柯磊谭林生兴
Owner LITE ON SINGAPORE PTE LTD
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