Proximity sensor

Patent metadata

Field	Value
Publication number	US-2016356642-A1
Application number	US-201615172436-A
Country	US
Kind code	A1
Filing date	Jun 3, 2016
Priority date	Jun 8, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A proximity sensor which is capable of facilitating a measure against crosstalk for different sets is provided. The proximity sensor includes a light emitting device, and a light receiving device including a plurality of light receiving parts, wherein the light receiving device has a function of arbitrarily selecting any of the plurality of light receiving parts.

First claim

What is claimed is:

1 . A proximity sensor comprising:
a light emitting device; and a light receiving device including a plurality of light receiving parts, wherein the light receiving device has a function of arbitrarily selecting any of the plurality of light receiving parts.

2 . The proximity sensor of claim 1 , wherein the plurality of light receiving parts is arranged on a surface of the light receiving device along a direction in which the light emitting device and the light receiving device are lined up.

3 . The proximity sensor of claim 1 , wherein the light receiving device includes:
an interface part which exchanges a signal with an external device; a register part which stores a control parameter input from the external device; and a control part which selects light receiving parts to be used according to the control parameter.

4 . The proximity sensor of claim 3 , wherein the control part selects only one light receiving part and outputs a detection signal obtained in the selected light receiving part, as a sensor output signal, to the external device.

5 . The proximity sensor of claim 3 , wherein the control part selects two or more light receiving parts and outputs a synthesized result of detection signals obtained in the selected light receiving parts, as a sensor output signal, to the external device.

6 . The proximity sensor of claim 1 , wherein the light emitting device is a surface emission laser element.

7 . The proximity sensor of claim 6 , further comprising a transparent sealing member which integrally seals the light emitting device and the light receiving device without optical isolation between the light emitting device and the light receiving device.

8 . The proximity sensor of claim 1 , wherein the light emitting device is a light emitting diode element.

9 . The proximity sensor of claim 8 , further comprising a light shielding wall member for optical isolation between the light emitting device and the light receiving device.

10 . An electronic apparatus comprising:
a proximity sensor of claim 1 ; and a housing including an opening window formed to face the proximity sensor.

Assignees

• Rohm Co Ltd

Inventors

• Uedaira Yoshitsugu

Classifications

• G01S7/493

  Extracting wanted echo signals · CPC title

• G01S17/04

  Systems determining the presence of a target · CPC title

• G01S7/4813

  Housing arrangements · CPC title

• G01S7/487

  Extracting wanted echo signals {, e.g. pulse detection} · CPC title

• G01S7/4816

  of receivers alone · CPC title