AUTHENTICATION APPARATUS, PRISM MEMBER FOR AUTHENTICATION AND AUTHENTICATION METHOD
First Claim
1. An authentication apparatus including a prism body, an imaging unit, a visible light source configured to radiate a visible light to a living body and an infrared light source configured to radiate an infrared light to the living body,wherein the prism body comprises:
- a living body contact surface configured to be in contact with the living body;
a reflection surface configured to be in contact with the living body contact surface, and totally reflect light by the visible light source from a concave portion of the living body and a convex portion of the living body, and light by the infrared light source from an inside of the living body; and
an imaging surface configured to be opposed to the living body contact surface, in contact with the reflection surface, and provided at an angle such that the light from the concave portion of the living body cannot be reached, and the light totally reflected by the reflection surface and the light from the convex portion of the living body can be transmitted,wherein the imaging unit is configured to image the light, which is transmitted through the imaging surface, from the convex portion of the living body, the light, which is transmitted through the imaging surface and reflected by the reflection surface, from the concave portion of the living body and the convex portion of the living body, and the light, which is transmitted through the imaging surface and reflected by the reflection surface, from the inside of the living body, simultaneously.
1 Assignment
0 Petitions
Accused Products
Abstract
An authentication apparatus includes a prism, an imaging unit, a visible light source and an infrared light source. The prism comprises: a contact surface contacted with the living body; a reflection surface contacted with the contact surface, and totally reflect light by the visible light source from a concave portion of the living body and a convex portion of the living body, and light by the infrared light source from an inside of the living body; and an imaging surface configured to be opposed to the contact surface, in contact with the reflection surface, and provided at an angle such that the light from the concave portion of the living body cannot be reached, and the light totally reflected by the reflection surface and the light from the convex portion of the living body can be transmitted. The imaging unit images the light which is transmitted through the imaging surface.
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Citations
15 Claims
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1. An authentication apparatus including a prism body, an imaging unit, a visible light source configured to radiate a visible light to a living body and an infrared light source configured to radiate an infrared light to the living body,
wherein the prism body comprises: -
a living body contact surface configured to be in contact with the living body; a reflection surface configured to be in contact with the living body contact surface, and totally reflect light by the visible light source from a concave portion of the living body and a convex portion of the living body, and light by the infrared light source from an inside of the living body; and an imaging surface configured to be opposed to the living body contact surface, in contact with the reflection surface, and provided at an angle such that the light from the concave portion of the living body cannot be reached, and the light totally reflected by the reflection surface and the light from the convex portion of the living body can be transmitted, wherein the imaging unit is configured to image the light, which is transmitted through the imaging surface, from the convex portion of the living body, the light, which is transmitted through the imaging surface and reflected by the reflection surface, from the concave portion of the living body and the convex portion of the living body, and the light, which is transmitted through the imaging surface and reflected by the reflection surface, from the inside of the living body, simultaneously. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A prism body for authentication of a living body, the prism body comprising:
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a living body contact surface configured to be in contact with the living body; a reflection surface configured to be in contact with the living body contact surface, and totally reflect light by the visible light source from a concave portion of the living body and a convex portion of the living body, and light by the infrared light source from an inside of the living body; and an imaging surface configured to be opposed to the living body contact surface, in contact with the reflection surface, and provided at an angle such that the light from the concave portion of the living body cannot be reached, and the light totally reflected by the reflection surface and the light from the convex portion of the living body can be transmitted. - View Dependent Claims (8, 14)
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9. An authentication method, comprising:
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causing a living body to contact with a living body contact surface of a prism body including; the living body contact surface configured to be in contact with the living body; a reflection surface configured to be in contact with the living body contact surface, and totally reflect light by the visible light source from a concave portion of the living body and a convex portion of the living body, and light by the infrared light source from an inside of the living body; and an imaging surface configured to be opposed to the living body contact surface, in contact with the reflection surface, and provided at an angle such that the light from the concave portion of the living body cannot be reached, and the light totally reflected by the reflection surface and the light from the convex portion of the living body can be transmitted, radiating a visible light and an infrared light to the living body; and imaging the light, which is transmitted through the imaging surface, from the convex portion of the living body, the light, which is transmitted through the imaging surface and reflected by the reflection surface, from the concave portion of the living body and the convex portion of the living body, and the light, which is transmitted through the imaging surface and reflected by the reflection surface, from the inside of the living body, simultaneously. - View Dependent Claims (10, 11, 12, 13, 15)
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Specification