Iris Recognition Device, Manufacturing Method Therefor and Application Thereof

• US 20170124392A1
• Filed: 05/20/2015
• Published: 05/04/2017
• Est. Priority Date: 05/22/2014
• Status: Active Grant

• Current Assignee: Ningbo Sunny Opotech Company Limited (Sunny Optical Technology (Group) Co., Ltd.)
• Original Assignee: Ningbo Sunny Opotech Company Limited (Sunny Optical Technology (Group) Co., Ltd.)
• Inventors: XU, Shixin, GU, Yiwu, LUO, Mengjie, TANG, Xinke, XU, Jiewei, HUANG, Lin
• Granted Patent: US 10,169,651 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 13/18 with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration G02B13/002 takes precedence
• CPC Class Codes: G06F 18/00 Pattern recognition
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06V 10/141 Control of illumination
• CPC Class Codes: G06V 10/147 Details of sensors, e.g. sensor lenses fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19
• CPC Class Codes: G06V 40/161 Detection; Localisation; Normalisation
• CPC Class Codes: G06V 40/171 Local features and components; Facial parts eye characteristics G06V40/18; Occluding parts, e.g. glasses; Geometrical relationships
• CPC Class Codes: G06V 40/172 Classification, e.g. identification
• CPC Class Codes: G06V 40/19 Sensors therefor
• CPC Class Codes: G06V 40/193 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/197 Matching; Classification
• CPC Class Codes: H04N 23/20 for generating image signals from infrared radiation only
• CPC Class Codes: H04N 23/56 provided with illuminating means
• CPC Class Codes: H04N 23/57 Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
• CPC Class Codes: H04N 5/33 Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20

Abstract

The iris recognition device includes an iris camera module used for collecting iris characteristics of a user, and at least one fill light component used for providing a supplementary light source for the iris camera module. When the iris recognition device is used for collecting the iris characteristics of the user, the supplementary light source provided by the fill light component reduces reflective spots on the iris or make reflective spots in areas other than iris such as sclera and pupil, thereby improving precision of the collected iris characteristics of the user.

Claims

1. :

A fill light method of an iris recognition application, comprising the steps of;

(a) collecting iris characteristics of a user by providing an iris camera module and using a pupil of said user as a focal point; and

(b) providing a supplementary light source for an eye region of said user by at least one fill light component to form a uniform brightness on an iris region, wherein said iris camera module and said fill light component form an iris recognition device.

2. :

The fill light method, as recited in claim 1, further comprising a step of;

mounting said iris camera module and said fill light component on a printed circuit board respectively, wherein said iris camera module and said fill light component has a preset angle and said preset angle has a range of 0-45 degree.

3. :

The fill light method, as recited in claim 2, wherein said fill light component comprises at least one light emitting element and a light emitting angle of each of said light emitting elements is respectively greater than a horizontal field angle and a vertical field angle of said iris camera module, wherein said light emitting element is an infrared LED light-emitting element providing infrared lights.

5. :

The fill light method, as recited in claim 1, wherein a distance between an iris recognition device and user iris is defined as z, a distance between axles of said iris camera module and said light emitting element of said fill light component is defined as x, an inclination angle of said light emitting element is defined as θ

, and a formulas relationship of said z, x and θ

is tan θ

=z/x, wherein when z is in a determinate state, x and θ

have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of θ and

said value of θ

is determined by adjusting said value of x.

4. (canceled)

6. :

A manufacturing method for an iris recognition device, comprising the steps of;

(A) mounting an iris camera module on a printed circuit board; and

(B) providing at least one fill light component on said iris camera module, wherein when said iris camera module collects iris characteristics of a user, said fill light component provides a supplementary light source, wherein each of said fill light components comprises at least one light emitting element, wherein a light-emitting angle of each of said light emitting elements is greater than a horizontal field angle and a vertical filed angle of said iris camera module.

7. :

The manufacturing method, as recited in claim 6, wherein a distance between said iris recognition device and user iris is defined as z, a distance between axles of said iris camera module and said light emitting element of said fill light component is defined as x, an inclination angle of said light emitting element is defined as θ

, and a formulas relationship of said z, x and θ

is tan θ

=z/x, wherein when z is in a determinate state, x and θ

have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of θ and

said value of θ

is determined by adjusting said value of x.

8. :

The manufacturing method, as recited in claim 6, further comprising the steps of providing a human face camera module and mounting said human face camera module on said printed circuit board.

9. :

The manufacturing method, as recited in claim 8, wherein a horizontal field angle of said human face camera module is greater than a horizontal field angle of said iris camera module and, accordingly, a vertical field angle of said human face camera module is greater than a vertical field angle of said iris camera module.

10. :

The manufacturing method, as recited in claim 6, wherein said iris recognition device is communicatively connected with a background processing component to process said iris characteristics of said user collected by said iris recognition device.

11. :

The manufacturing method, as recited in claim 10, wherein said background processing component is mounted on said printed circuit board.

12. :

The manufacturing method, as recited in claim 10, wherein said iris recognition device has a data interface and said background processing component has a connection end, wherein said connection end is coupled with said data interface.

13. :

The manufacturing method, as recited in claim 10, wherein said iris recognition device is connected to said background processing component in a wireless connection.

14. (canceled)

15. :

An iris recognition device, comprising;

an iris camera module arranged to collect iris characteristics of a user, and

at least one fill light component comprising at least one light emitting element which provides a supplementary light source for said iris camera module.

16. :

The iris recognition device, as recited in claim 15, wherein a light emitting angle of each of said light emitting elements is respectively greater than a horizontal field angle and a vertical field angle of said iris camera module.

17. :

The iris recognition device, as recited in claim 15, further comprising a printed circuit board, wherein said iris camera module and said fill light component are respectively mounted on said printed circuit board.

18. :

The iris recognition device, as recited in claim 15, further comprising a human face camera module and said human face camera module is mounted on said printed circuit board.

19. :

The iris recognition device, as recited in claim 18, wherein a horizontal field angle of said human face camera module is greater than a horizontal field angle of said iris camera module and, accordingly, a vertical field angle of said human face camera module is greater than a vertical field angle of said iris camera module.

20. :

The iris recognition device, as recited in claim 15, wherein said iris recognition device is communicatively connected with a background processing component to process user iris characteristics collected by said iris recognition device.

21. :

The iris recognition device, as recited in claim 20, wherein said background processing component is mounted on said printed circuit board.

22. :

The iris recognition device, as recited in claim 20, wherein said iris recognition device has a data interface and said background processing component has a connection end, wherein said connection end is coupled with said data interface.

23. :

The iris recognition device, as recited in claim 20, wherein said iris recognition device is connected to said background processing component in a wireless connection.

25. :

The iris recognition device, as recited in claim 15, wherein a distance between said iris recognition device and user iris is defined as z, a distance between axles of said iris camera module and said light emitting element of said fill light component is defined as x, an inclination angle of said light emitting element is defined as θ

, and a formulas relationship of said z, x and is tan θ

=z/x, wherein when z is in a determinate state, x and θ

have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of θ and

said value of θ

is determined by adjusting said value of x, wherein said value of θ

has a range of 0-45 degree.

24. (canceled)

26-103. -103. (canceled)