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Double eye iris image acquisition module for mobile device

A mobile device and iris image technology, applied in image communication, character and pattern recognition, color TV components, etc., can solve problems such as small space

Active Publication Date: 2015-08-12
珠海先牛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two position structures are not conducive to the development trend that mobile devices such as mobile phones are getting thinner and thinner, and the space other than the screen is getting smaller and smaller.

Method used

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  • Double eye iris image acquisition module for mobile device
  • Double eye iris image acquisition module for mobile device
  • Double eye iris image acquisition module for mobile device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Please refer to Figure 4 , Embodiment 1 of the present invention is:

[0048] A binocular iris image acquisition module for mobile devices, comprising:

[0049] A near-infrared LED lamp 1 is used to illuminate the iris region 5 of a person, and the wavelength band used by the near-infrared LED lamp 1 is 750nm-940nm;

[0050] The reflective device 2 is used to change the propagation direction of the light. The reflective device includes a first reflective surface and a second reflective surface. The second reflective surface is used to change the light parallel to the thickness direction of the mobile device to be parallel to the longitudinal direction of the mobile device. The first reflective surface is used to change the light parallel to the length direction of the mobile device to be parallel to the width direction of the mobile device; the first reflective surface is located on the first triangular prism 20, and the second reflective surface is located on the sec...

Embodiment 2

[0054] Please refer to Figure 5 , the second embodiment of the present invention is:

[0055] A binocular iris image acquisition module for mobile devices, comprising:

[0056] A near-infrared LED lamp 1 is used to illuminate the iris region 5 of a person, and the wavelength band used by the near-infrared LED lamp 1 is 750nm-940nm;

[0057] The reflective device 2 is used to change the propagation direction of the light. The reflective device includes a first reflective surface and a second reflective surface. The second reflective surface is used to change the light parallel to the thickness direction of the mobile device to be parallel to the longitudinal direction of the mobile device. The first reflective surface is used to change the light parallel to the length direction of the mobile device to be parallel to the width direction of the mobile device; the first reflective surface is located on the first 45-degree reflector 22, and the second reflective surface is locate...

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Abstract

The invention provides a double eye iris image acquisition module for a mobile device, comprising a near infrared LED lamp, a reflection unit, a large power lens, and a CMOS image sensor. The near infrared LED lamp is used for illuminating the iris area. The reflection unit is used for changing the emitting direction of light, and is composed of a first reflection surface and a second reflection surface. The second reflection surface is used for changing the light, parallel to the thickness direction of the mobile device, to light parallel to the length direction of the mobile device; the first reflection surface is used for changing the light, parallel to the length direction of the mobile device, to light parallel to the width direction of the mobile device. The large power lens is disposed at the light path of the emitting light of the reflection unit, and the central axis is parallel to the upper and lower edges of the mobile device. The large power lens is used for collecting light, whose emitting direction is changed. The CMOS image sensor is disposed at the light emitting direction of the large power lens, and the light-sensitive surface is vertical to the upper and lower surface of the mobile device for forming images of the collected light.

Description

technical field [0001] The invention relates to the field of imaging of mobile devices, in particular to a binocular iris image acquisition module for mobile devices. Background technique [0002] The iris is a ring of tissue that surrounds the pupil and controls the size of the pupil to regulate the light entering the eye. The iris has two distinct edges, the inner edge where it meets the pupil and the outer edge where it meets the cornea. [0003] Iris recognition is currently a recognition technology with the highest recognition rate in biometric recognition, which uses the characteristics of the iris area in the human eye image for recognition. When collecting eye images for iris recognition, in order to ensure high recognition accuracy, it is generally required that in the collected images, the diameter of the outer circle of the iris is not less than 200 pixels. In the beginning, iris recognition basically used monocular iris recognition. With the development of tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/20H04N5/225
CPCG06V40/18G06V10/147H04N23/56H04N23/54H04N23/57H04N23/55
Inventor 刘海涛姚鹏
Owner 珠海先牛科技有限公司
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