Sensor for sensing a biometric function

Patent metadata

Field	Value
Publication number	US-2018103857-A1
Application number	US-201615560693-A
Country	US
Kind code	A1
Filing date	Mar 23, 2016
Priority date	Mar 23, 2015
Publication date	Apr 19, 2018
Grant date	—

Abstract

A sensor that senses a biometric function includes at least one transmitter configured to transmit electromagnetic radiation in an emission direction, including at least one receiver configured to receive electromagnetic radiation in a receiving direction, wherein the transmitter and the receiver are configured such that the emission direction of the transmitter is inclined away from the receiving direction of the receiver by a defined angle, wherein the angle is 1° to 60°.

First claim

1 - 9 . (canceled)

10 . A sensor that senses a biometric function comprising at least one transmitter configured to transmit electromagnetic radiation in an emission direction, comprising at least one receiver configured to receive electromagnetic radiation in a receiving direction, wherein the transmitter and the receiver are configured such that the emission direction of the transmitter is inclined away from the receiving direction of the receiver by a defined angle, wherein the angle is 1° to 60°.

11 . The sensor according to claim 10 , wherein the transmitter comprises an emission angle of 40° or less.

12 . The sensor according to claim 10 , wherein the transmitter comprises a reflector, the reflector defining the emission direction and/or the emission angle range.

13 . The sensor according to claim 10 , wherein the receiver comprises a reflector, the reflector defining a receiving direction and/or a receiving angle range.

14 . The sensor according to claim 12 , wherein the reflector at least partly comprises a parabolic shape, and the transmitter is arranged at a focus of the parabolic shape.

15 . The sensor according to claim 13 , wherein the reflector at least partly comprises a parabolic shape, and the receiver is arranged at a focus of the parabolic shape.

16 . The sensor according to claim 10 , wherein the transmitter and/or the receiver comprise(s) a lens for beam guiding.

17 . The sensor according to claim 16 , wherein the lens is configured as a prism.

18 . The sensor according to claim 10 , wherein the transmitter and the receiver are arranged alongside one another on one side of a carrier.

19 . The sensor according to claim 10 , wherein the emission direction is defined by a center of an emission range.

20 . The sensor according to claim 10 , wherein the receiving direction is defined by a center of a receiving range.

21 . The sensor according to claim 10 , wherein the transmitter and the receiver are arranged on a common carrier, and the emission direction and/or the receiving direction are achieved by a tilted arrangement of a reflector relative to a surface of the carrier.

22 . The sensor according to claim 10 , wherein the transmitter and the receiver are arranged on a common carrier, and the emission direction and/or the receiving direction are achieved by a tilted arrangement of a lens.

23 . A method of sensing a biometric function comprising transmitting electromagnetic radiation in an emission direction by a transmitter, and receiving reflected electromagnetic radiation in a receiving direction by a receiver, wherein the transmitter and the receiver are configured such that the emission direction of the transmitter is inclined away from the receiving direction of the receiver by a defined angle of 1° to 60°.

24 . A sensor of sensing a biometric function comprising at least one transmitter configured to transmit electromagnetic radiation in an emission direction, comprising at least one receiver configured to receive electromagnetic radiation in a receiving direction, wherein the transmitter and the receiver are configured such that the emission direction of the transmitter is inclined away from the receiving direction of the receiver by a defined angle of 1° to 60°,
wherein the transmitter comprises a first reflector, the first reflector defines the emission direction, the receiver comprises a second reflector, the second reflector defines a receiving direction,
the first reflector has a parabolic shape, the transmitter is arranged at a focus of the parabolic shape of the first reflector, and
the second reflector has a parabolic shape, and the receiver is arranged at a focus of the parabolic shape of the second reflector.

Assignees

• Osram Opto Semiconductors Gmbh

Inventors

• Hirmer Michael
• Jaeger Claus
• Liebl Maria
• Strüwing Stefan
• Sossenheimer Dirk

Classifications

• A61B5/0059

  using light, e.g. diagnosis by transillumination, diascopy, fluorescence (photoacoustic A61B5/0093; optical measurement of heart rate A61B5/02416; optical measurement of blood flow A61B5/0261; optical measurement of analytes A61B5/1455) · CPC title

• A61B2562/08

  Sensors provided with means for identification, e.g. barcodes or memory chips · CPC title

• A61B5/02427 Primary

  Details of sensor · CPC title

• A61B5/6826

  Finger · CPC title

• A61B5/7203 Primary

  for noise prevention, reduction or removal · CPC title