IRIS RECOGNITION CAMERA SYSTEM FOR MOBILE DEVICE

• US 20150062324A1
• Filed: 03/20/2013
• Published: 03/05/2015
• Est. Priority Date: 04/13/2012
• Status: Active Grant

• Current Assignee: Kyung Yong Choi
• Original Assignee: Kyung Yong Choi
• Inventors: Choi, Kyung Yong
• Granted Patent: US 9,824,272 B2
• Time in Patent Office: Days
• US Class Current: 348/78
• CPC Class Codes: G06V 10/143 Sensing or illuminating at different wavelengths
• 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 30/142 using hand-held instruments; Constructional details of the instruments
• CPC Class Codes: G06V 40/19 Sensors therefor
• CPC Class Codes: H04N 23/56 provided with illuminating means
• CPC Class Codes: H04N 23/611 where the recognised objects include parts of the human body
• 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
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

An iris recognition camera system for mobile device includes a sensor and associated circuit, a lens and lighting sources including a lighting source element, a displaying light source element and IR LED light source elements, wherein the lighting sources are installed around the center of a camera lens with a certain clearance, and the lighting sources are attached on an FPCB and arranged on the four sides of the center of the camera lens and equipped with an FPCB cover for protection and a guiding mirror so that a user may conveniently acquire an image of his or her iris watching the image of his or her iris so as to identify and process only a living iris.

Claims

1. An iris recognition camera system for mobile device comprising a sensor and associated circuit, a lens and lighting sources including a lighting source element, a displaying light source element and IR LED light source elements, wherein the lighting sources are installed around the center of a camera lens with a certain clearance, and the lighting sources are attached on an FPCB and arranged on the four sides of the center of the camera lens and equipped with an FPCB cover for protection and a guiding mirror so that a user may conveniently acquire an image of his or her iris watching the image of his or her iris so as to identify and process only a living iris.

2. The iris recognition camera system for mobile device of claim 1, wherein, for a primary measure, the IR LED light source elements are arranged on the four sides of the camera lens and lighted simultaneously, diagonally and alternately lighted either from the upper and lower sides or from the left and right sides or lighted in a predetermined order so as to verify the iris pattern and identify a sham iris then, for a secondary measure, the wavelength of infrared rays equal to or more than 800 nm is selected so as to strengthen sham iris detection performance.

3. The iris recognition camera system for mobile device of claim 1, wherein the upper surface, the lower surface or both of the upper and lower surfaces of the FPCB cover is corroded (to have fine protrusions and depressions so as to scatter or diffuse light or be coated or formed with a material containing a substance that scatters or diffuses light.

4. The iris recognition camera system for mobile device of claim 1, wherein the cross section of the FPCB cover is designed so that the upper and/or lower surface may act as a concave spherical surface and convex spherical surface or a convex spherical and concave spherical surface, respectively, or act as a prism so as far the radiation angle of lighting to intersect with the direction of the camera at the focal length.

5. The iris recognition camera system for mobile device of claim 1, wherein the guiding mirror is an elliptical mirror designed considering the shooting distance and the size of an iris image so that a user may acquire the image of his or her iris watching the image and the elliptical mirror is coated with a substance that reflects visible rays and transmits infrared rays.

6. The iris recognition camera system for mobile device of claim 3, wherein the cross section of the FPCB cover is designed so that the upper and/or lower surface may act as a concave spherical surface and convex spherical surface or a convex spherical and concave spherical surface, respectively, or act as a prism so as for the radiation angle of lighting to intersect with the direction of the camera at the focal length.