# US 2021/0240981 A1 · Iris Recognition Device, Manufacturing Method Therefor and Application Thereof

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- Number: US 2021/0240981 A1
- Document ID: US20210240981A1
- Status: Published application
- Kind: A1
- Application number: 17/146,382
- Filed: 2021-01-11
- Published: 2021-08-05
- Earliest claimed: 2016-11-21
- Assignees: Ningbo Sunny Opotech Co., Ltd.
- Applicants: Ningbo Sunny Opotech Co., Ltd.
- Inventors: Yiwu GU; Mengjie LUO; Xinke Tang; Jiewei XU; Shixin XU; Lin HUANG
- Web page: https://patentgrep.com/patent/US20210240981A1

## CPC

- G02B 13/18: with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)}
- G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints
- G06V 10/141: Control of illumination
- G06V 10/147: Details of sensors, e.g. sensor lenses (fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19)
- G06V 40/19: Sensors therefor
- G06V 40/193: {Preprocessing; Feature extraction}
- G06V 40/197: {Matching; Classification}
- H04N 23/20: for generating image signals from infrared radiation only
- H04N 23/56: provided with illuminating means
- H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
- G06V 40/161: {Detection; Localisation; Normalisation}
- G06V 40/171: {Local features and components; Facial parts (eye characteristics G06V40/18); Occluding parts, e.g. glasses; Geometrical relationships}
- G06V 40/172: {Classification, e.g. identification}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## 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

### Claim 1

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.

### Claim 2 (depends on 1)

The manufacturing method, as recited in claim 1, 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 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.

### Claim 3 (depends on 1)

The manufacturing method, as recited in claim 1, further comprising a step of providing a human face camera module and mounting said human face camera module on said printed circuit board.

### Claim 4 (depends on 3)

The manufacturing method, as recited in claim 3, 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.

### Claim 5 (depends on 4)

The manufacturing method, as recited in claim 4, wherein said iris recognition device is communicatively connected with a background processing component to process user iris characteristics collected by said iris recognition device, wherein said background processing component is mounted on said printed circuit board, 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, wherein said iris recognition device is connected to said background processing component in a wireless connection, wherein said wireless connection of said iris recognition device and said background processing component is selected from the group consisting of Wi-Fi, Li-Fi, Internet, communication network and Bluetooth.

### Claim 6

A manufacturing method for an iris and face recognition system, comprising the steps of:
(a) mounting an iris recognition module and a face recognition module on a printed circuit board respectively; and
(b) communicatively connecting a background processing component to said iris recognition module and said face recognition module.

### Claim 7 (depends on 6)

The manufacturing method, as recited in claim 6, wherein said step (b) further comprises a step which is selected from the group consisting of:
mounting said background processing component on said printed circuit board, and
communicatively connecting said background processing component with said iris recognition module and said face recognition module in a connection which is selected from the group consisting of wired connection and wireless connection.

### Claim 8 (depends on 6)

The manufacturing method, as recited in claim 6, wherein a horizontal field angle of said face recognition module is greater than a horizontal field angle of said iris recognition module and, accordingly, a vertical field angle of said face recognition module is greater than a vertical field angle of said iris recognition module, wherein said wireless connection of said background processing component with said iris recognition module and said face recognition module is selected from the group consisting of Wi-Fi, Li-Fi, Internet, communication network and Bluetooth.

### Claim 9 (depends on 6)

The manufacturing method, as recited in claim 6, wherein a distance between said iris recognition module and a user iris is defined as z, a distance between axles of an iris camera module and a light emitting element is defined as x, an inclination angle of said light emitting element is defined as 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.

### Claim 10 (depends on 7)

The manufacturing method, as recited in claim 7, wherein a distance between said iris recognition module and a user iris is defined as z, a distance between axles of an iris camera module and a light emitting element is defined as x, an inclination angle of said light emitting element is defined as 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.

### Claim 11 (depends on 8)

The manufacturing method, as recited in claim 8, wherein a distance between said iris recognition module and a user iris is defined as z, a distance between axles of an iris camera module and a light emitting element is defined as x, an inclination angle of said light emitting element is defined as 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.

### Claim 12

A constructing method of facial characteristics, comprising the steps of:
(A) capturing facial characteristics of a user by a face recognition module and generating an image data flow and transmit said image data flow to a background processing component;
(B) capturing iris characteristics of said user by an iris recognition module and generating an image data flow and transmitting said image data flow to said background processing component; and
(C) converting said image data flow to generate identity information of said user said background processing component, and transmitting said identity information of said user to an operating component for encoding process so as to construct facial characteristics of said user.

### Claim 13 (depends on 12)

The constructing method, as recited in claim 12, wherein a horizontal field angle of said face recognition module is greater than a horizontal field angle of said iris recognition module, and accordingly, wherein a vertical field angle of said face recognition module is greater than a vertical field angle of said iris recognition module.

### Claim 14 (depends on 13)

The constructing method, as recited in claim 13, wherein the step (B) is completed before the step (A), and thus, capture iris characteristics of said user at first, then capture facial characteristics of said user.

### Claim 15 (depends on 13)

The constructing method, as recited in claim 13, wherein the step (B) is completed with the step (A) at said same time; and thus, capture iris characteristics of said user at first, then capture facial characteristics of said user.

### Claim 16 (depends on 13)

The constructing method, as recited in claim 13, wherein the step (B) is completed before the step (A), and thus, capture iris characteristics of said user at first, then simultaneously capture iris characteristics and facial characteristics of said user.

### Claim 17 (depends on 13)

The constructing method, as recited in claim 13, wherein the step (B) is completed with the step (A) at said same time; and thus, capture iris characteristics of said user at first, then simultaneously capture iris characteristics and facial characteristics of said user.

### Claim 18 (depends on 12)

The constructing method, as recited in claim 12, wherein a distance between said iris recognition module and a user iris is defined as z, a distance between axles of an iris camera module and a light emitting element is defined as x, an inclination angle of said light emitting element is defined as 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.

### Claim 19 (depends on 13)

The constructing method, as recited in claim 13, wherein a distance between said iris recognition module and a user iris is defined as z, a distance between axles of an iris camera module and a light emitting element is defined as x, an inclination angle of said light emitting element is defined as 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.

### Claim 20 (depends on 17)

The constructing method, as recited in claim 17, wherein a distance between said iris recognition module and a user iris is defined as z, a distance between axles of an iris camera module and a light emitting element is defined as x, an inclination angle of said light emitting element is defined as 0, and a formulas relationship of said z, x and 0 is tan 0=z/x, wherein when z is in a determinate state, x and 0 have a changing rule of tangent function, wherein said value of x is determined by adjusting said value of 0 and said value of 0 is determined by adjusting said value of x.