Finger identification apparatus
First Claim
1. A terminal for capturing an image which has blood vessel pattern comprising;
- a guide member for positioning a finger;
at least one light source for irradiating light to the finger;
an imaging unit for imaging the blood vessel pattern based on transmitted light through the finger;
a shading unit which is capable of preventing invasion of extraneous light;
wherein the shading unit is formed in the direction of at least one of the sides of the guide member,wherein the light source is formed between the guide member and the shading unit.
1 Assignment
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Accused Products
Abstract
An identification apparatus that keeps the conditions for imaging uniform among successive identifications and requires a user to perform only a series of simple maneuvers. An identification apparatus comprising a guide member, a light source, and an imaging unit. The guide member includes a pattern or a structure that inspires a user to position his/her finger thereon or to approach his/her specific finger region thereto. A contact member such as a button switch is preferably located at a position in the guide member at which a fingertip is to be positioned. An optical opening is formed at a position coincident with a position at which a portion of a finger to be imaged for identification should be placed. The light source radiates near-infrared light through the portion of the finger to be imaged. The imaging means acquires an image of the finger, and the apparatus compares the image to previously registered images. The apparatus may also include dual light sources power saving functionality, and means for limiting the interference of external light sources.
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Citations
15 Claims
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1. A terminal for capturing an image which has blood vessel pattern comprising;
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a guide member for positioning a finger; at least one light source for irradiating light to the finger; an imaging unit for imaging the blood vessel pattern based on transmitted light through the finger; a shading unit which is capable of preventing invasion of extraneous light;
wherein the shading unit is formed in the direction of at least one of the sides of the guide member,wherein the light source is formed between the guide member and the shading unit. - View Dependent Claims (2, 3, 4, 5)
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6. An interface for capturing an image which has blood vessel pattern for identification comprising;
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a guide member for guiding a finger; at least one light source for irradiating light to the finger; an imaging unit which images the blood vessel pattern based on transmitted light through the finger; a shading part which is capable of preventing invasion of extraneous light; wherein the light source is formed on at least one of the sides of the guide member; wherein the shading part is intersected with an axis of light irradiated from the light source, and formed more far from the guide member than the light source. - View Dependent Claims (7, 8, 9, 10)
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11. A blood vessel imaging apparatus for capturing an image which has blood vessel pattern comprising;
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a guide member for positioning a finger; at least one light source for irradiating light to the finger; an imaging unit for imaging the blood vessel pattern based on transmitted light through the finger; a light source unit which has the light source and prevents invasion of extraneous light; wherein the light source unit is formed in the direction of at least one of sides of the guide member; wherein the light source is formed on a surface of the light source unit; wherein the surface is exposed toward the guide member. - View Dependent Claims (12, 13, 14, 15)
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Specification