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Sensor for venous network of part of living body and control method thereof

A sensor, a part of the technology, applied in the field of controlling such sensors, can solve the problem of not fully satisfactory venous network sensors, etc.

Active Publication Date: 2015-09-02
埃迪米亚身份与安全法国公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This venous network sensor is not entirely satisfactory

Method used

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  • Sensor for venous network of part of living body and control method thereof
  • Sensor for venous network of part of living body and control method thereof
  • Sensor for venous network of part of living body and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] figure 1 Shown is a sensor 100 designed for statically or dynamically capturing an image of the venous network of a part 50 of a living body, here a finger.

[0056]Sensor 100 includes:

[0057] - an infrared radiation source 102;

[0058] - a waveguide 104 illuminated by an infrared radiation source 102 and having on one face 112 at least one extraction zone 106 intended for extraction of infrared rays 114 from the waveguide 104 in at least one main extraction direction 116;

[0059] - image acquisition means 108, arranged opposite to face 112 to define a passage 118 therebetween, the part 50 of the living body is accessible through the entrance of passage 118, and image acquisition means 108 comprises sensitive element 110;

[0060] The or each extraction zone 106 is such that the main extraction direction 116 of the extraction zone 106 is oriented so as not to intersect the sensitive element 110 .

[0061] The surface 112 provided with the extraction area 106 cons...

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PUM

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Abstract

The invention relates to a sensor (100) for the venous network of a part (50) of a living body, comprising: - an infrared radiation source (102); - a waveguide (104), illuminated by the infrared radiation source (102) and having at least one extraction zone (106), the at least one extraction zone (106) located on the face 112 and intended for extraction of infrared rays (114) from the waveguide (104) in at least one main extraction direction (116); - image acquisition means (108) , arranged opposite to the surface (112) to define a channel (118) therebetween, a part of the living body (50) can enter through the entrance of the channel (118), and the image acquisition device (108) includes a sensitive element (110 ); and the extraction zone (106) are such that the main extraction direction (116) of the extraction zone (106) is oriented so as not to intersect the sensitive element (110).

Description

technical field [0001] The invention relates to a sensor for a venous network of a part of a living body and a method for controlling such a sensor. Background technique [0002] Sensors for the venous network of a part of a living body (eg, the venous network of a finger, hand, toe, etc.) are often used, for example for controlling access to sites or machines. [0003] The venous network sensor includes a source of infrared radiation that illuminates the means used to obtain images from the sensor, such as a CCD camera. [0004] The source of infrared radiation is implemented by a set of infrared emitters positioned relative to each other, typically along rows and / or columns. An array or matrix of infrared emitters will be described below. [0005] When a living body is placed between the infrared radiation source and the image acquisition device, some rays in the optical flow directly irradiate the image acquisition device, while other rays irradiate the image acquisitio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/117G06K9/20G06K9/00G06V10/141G06V40/14G06V40/145
CPCA61B5/117A61B5/1455A61B5/489G06V40/14G06V10/141G06V40/145G06V10/10G06F18/00G01J1/0407
Inventor 吉莱斯·蒙特利特马修·达波伊斯迈克尔·克鲁查加西尔万·皮卡德
Owner 埃迪米亚身份与安全法国公司