BIOMETRIC DATA ACQUISITION DEVICE
An iris recognition system is disclosed wherein the tilt of a camera and illuminator module is manually or automatically adjusted in a manner that is efficient and easy to use, and wherein a user guidance system provides a reflective view of the user that facilitates user-centering. The camera and/or illuminator module are preferably tiltable only about a substantially horizontal axis. The user guidance system preferably includes a reflective surface that is convex in substantially only one direction, most preferably about a horizontal axis, and substantially flat about a vertical axis.
1 . A biometric iris recognition device, comprising:
a primary housing pivotably attached to a base about a substantially horizontal axis;
a first camera and a first illuminator module both disposed in said primary housing and oriented to face a front of said primary housing; and
at least one handle, extending from and disposed off-center on an exterior of said primary housing, adapted to allow a user to pivot said primary housing about said substantially horizontal axis to align said first camera and said first illuminator module with the user's eye.
2 . A biometric iris recognition device according to claim 1 , further comprising a hinge formed between said primary housing and said base as said pivotable attachment, wherein said hinge allows said primary housing to rotate solely about said substantially horizontal axis.
3 . A biometric iris recognition device according to claim 1 , wherein said handle is disposed on a side portion of said primary housing substantially orthogonal to said front of said primary housing.
4 . A biometric iris recognition device according to claim 3 , wherein at least one said handle is offset from substantially horizontal axis.
5 . A biometric iris recognition device according to claim 1 , wherein said primary housing can rotate more than 90 degrees with respect to said base.
6 . A biometric iris recognition device according to claim 1 , wherein said primary housing further comprises a second camera and a second illuminator module, wherein said first camera and illuminator module face in a first direction, and said second camera and illuminator module face in a substantially opposite rear direction.
7 . A biometric iris recognition device according to claim 1 , wherein a height to width ratio of the overall device is substantially 2 to 1.
8 . A biometric iris recognition device according to claim 1 , wherein a height to width ratio of said primary housing is substantially 2 to 1.
9 . A biometric iris recognition device according to claim 1 , further comprising at least one positioning mirror disposed on said front of said primary housing, adapted to reflect the image of a user back to the user when the user's face is substantially aligned with the optical axis of said camera.
10 . A biometric iris recognition device according to claim 9 , wherein said positioning mirror is convex in primarily one direction only.
11 . A biometric iris recognition device according to claim 6 , further comprising:
at least one first positioning mirror disposed on said front of said primary housing, adapted to reflect the image of a user back to the user when the user's face is substantially aligned with the optical axis of said first camera; and
at least one second positioning mirror disposed on said rear of said primary housing, adapted to reflect the image of a user back to the user when the user's face is substantially aligned with the optical axis of said second camera.
12 . A biometric iris recognition device according to claim 11 , wherein said first and second positioning mirrors are convex in primarily one direction only.
13 . A biometric iris recognition device according to claim 10 , wherein said positioning mirror includes an at least partially reflective surface that is convex about a substantially horizontal axis and substantially flat about a substantially vertical axis.
14 . A biometric iris recognition device according to claim 12 , wherein said first and second positioning mirrors each includes an at least partially reflective surface that is convex about a substantially horizontal axis and substantially flat about a substantially vertical axis.
15 . A biometric iris recognition device according to claim 1 , wherein said first camera includes a wide angle field of view in a substantially horizontal direction.
16 . A biometric iris recognition device according to claim 6 , wherein said first and second cameras each includes a wide angle field of view in a substantially horizontal direction.
17 . A biometric iris recognition device, comprising:
a first camera and a first illuminator module both disposed in a primary housing and oriented to face a front of said primary housing; and
at least one first positioning mirror, disposed on said front of said primary housing, adapted to reflect the image of a user back to the user when the user's face is substantially aligned with the optical axis of said first camera, wherein said positioning mirror is convex in primarily one direction only.
18 . A biometric iris recognition device according to claim 17 , said primary housing being pivotably attached to a base about a substantially horizontal axis.
19 . A biometric iris recognition device according to claim 17 , wherein said primary housing further comprises a second camera and a second illuminator module, wherein said first camera and illuminator module face in a first direction, and said second camera and illuminator module face in a substantially opposite rear direction.
20 . A biometric iris recognition device according to claim 19 , further comprising at least one second positioning mirror disposed on said rear of said primary housing, adapted to reflect the image of a user back to the user when the user's face is substantially aligned with the optical axis of said second camera, wherein said second positioning mirror is convex in primarily one direction only.
21 . A biometric iris recognition device according to claim 17 , wherein said first positioning mirror includes an at least partially reflective surface that is convex about a substantially horizontal axis and substantially flat about a substantially vertical axis.
22 . A biometric iris recognition device according to claim 20 , wherein said first and second positioning mirrors each includes an at least partially reflective surface that is convex about a substantially horizontal axis and substantially flat about a substantially vertical axis.
23 . A biometric iris recognition device according to claim 17 , wherein said first positioning mirror is an integral reflective portion of said primary housing.
24 . A biometric iris recognition device according to claim 23 , wherein said reflective portion of said primary housing comprises one of a cylindrical, oval, or dome-like shape.
25 . A biometric iris recognition device according to claim 20 , wherein said first and second positioning mirrors are integral reflective portions of said primary housing.
26 . A biometric iris recognition device according to claim 24 , wherein said reflective portions of said primary housing comprise one of a cylindrical, oval, or dome-like shape.
27 . A biometric iris recognition device according to claim 17 , said camera being rotatably mounted in said primary housing about a substantially horizontal axis.
28 . A biometric iris recognition device, comprising:
a primary housing attached to a base by means of a pivot that can only rotate solely about a substantially horizontal axis;
an illuminator module disposed in one of said primary housing or said base;
a first camera module disposed in said primary housing and oriented to face a front of said primary housing, said first camera including a wide angle field of view in a substantially horizontal direction; and
automatic positioning means for pivotably positioning said primary housing about said substantially horizontal axis to automatically align an optical axis of said first camera with a face of a user.
29 . A biometric iris recognition device according to claim 28 , said first camera further comprising a field-widening mirror optically interposed between said first camera and a user, said field-widening mirror being convex in a substantially horizontal direction and substantially flat in a substantially vertical direction.
30 . A biometric iris recognition device according to claim 2 , said hinge further comprising a position retaining mechanism, wherein when a user sets an angular position of said primary housing with respect to said base, said angular position remains until another user affirmatively adjusts said angular position.