Ergonomic biometric print capture device

1. A device for contactless capture of a biometric print of part of a user's hand, able to acquire a part of a hand being part of a palm of a hand, comprising:

an electronic compartment and a user compartment,

the user compartment including a frontal opening designed for passage of the palm of a hand into said user compartment,

the electronic compartment including acquisition means for acquiring an image of a print of said hand part, and

the user compartment further including at least one lateral opening allowing the passage of a thumb of the user's hand,

wherein the lateral opening extends as far as the frontal opening to form a continuous open space, the lateral opening being delimited in a direction of insertion of the user's hand into the user compartment by a user hand positioning stop to encourage the palm of the hand to be introduced into the user compartment with the thumb spread, the positioning stop impeding full insertion of the hand,

wherein the user compartment further includes an acquisition zone delimited on a side of the frontal opening by a limit, the positioning stop being located at a stop distance of between fifty and eighty millimetres from said limit.

2. The biometric print capture device according to claim 1 , wherein the user compartment further includes a through-orifice able to allow one end of said user's hand to protrude beyond said user compartment, the through-orifice facing the frontal opening.

3. The biometric print capture device according to claim 1 , wherein the user compartment further includes an upper face having a transparent portion allowing the user to see at least a portion of the hand part in order to adjust its position within said user compartment.

4. The biometric print capture device according to claim 1 , wherein the electronic compartment further includes lighting means for generating at least one beam of light shining towards the user compartment, the user compartment including means for at least partially blocking a beam of light coming from the electronic compartment at a transparent portion.

5. The biometric print capture device according to claim 1 , wherein the user compartment further includes a blocking hood able to block a beam of light coming from the electronic compartment at least at one of the openings that are the lateral opening and the frontal opening.

6. The biometric print capture device according to claim 1 , wherein the user compartment further includes a lateral face having said lateral opening extending from the frontal opening of the user compartment as far as the positioning stop.

7. The biometric print capture device according to claim 1 , wherein the lateral opening is delimited by the positioning stop, a top edge and a bottom edge, at least one of edges that are the top edge and the bottom edge being arranged in such a way to define a natural mean hand-positioning plane substantially parallel to at least one of the edges or equidistant from the top edge and from the bottom edge.

8. The biometric print capture device according to claim 1 , further comprising two lateral openings, one on each side of the frontal opening, a first lateral opening allowing the passage of the thumb of the user's right hand, and a second lateral opening allowing the passage of the thumb of the user's left hand.

9. The biometric print capture device according to claim 1 , further comprising means for informing a user of an end of an acquisition session by the acquisition means, according to a distance between said hand part and the positioning stop.

10. A device for contactless capture of a biometric print of part of a user's hand, comprising:

an electronic compartment and a user compartment,

the user compartment including a frontal opening designed for passage of a hand into said user compartment,

the electronic compartment including acquisition means for acquiring an image of a print of said hand part, and

the user compartment further including at least one lateral opening allowing the passage of a thumb of the user's hand,

wherein the lateral opening extends as far as the frontal opening to form a continuous open space, the lateral opening being delimited in a direction of insertion of the user's hand into the user compartment by a user hand positioning stop to encourage the hand to be introduced into the user compartment with the thumb spread, the positioning stop impeding full insertion of the hand,

wherein the user compartment further includes a through-orifice able to allow one end of said user's hand to protrude beyond said user compartment, the through-orifice facing the frontal opening.

11. A device for contactless capture of a biometric print of part of a user's hand, comprising:

an electronic compartment and a user compartment,

the user compartment including a frontal opening designed for passage of a hand into said user compartment,

the electronic compartment including acquisition means for acquiring an image of a print of said hand part, and

the user compartment further including at least one lateral opening allowing the passage of a thumb of the user's hand,

wherein the lateral opening extends as far as the frontal opening to form a continuous open space, the lateral opening being delimited in a direction of insertion of the user's hand into the user compartment by a user hand positioning stop to encourage the hand to be introduced into the user compartment with the thumb spread, the positioning stop impeding full insertion of the hand,

wherein the user compartment further includes a blocking hood able to block a beam of light coming from the electronic compartment at least at one of the openings that are the lateral opening and the frontal opening.