Identification sensor
First Claim
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1. A discrimination sensor that optically detects a surface structure of an object by scanning along a surface of the object, the discrimination sensor comprising:
- a light emitting device that emits sensing light to the surface of the object, the sensing light having a sensing area being wide in a direction perpendicular to the scanning direction; and
a light receiving device having a light receiving area that receives light generated on the surface structure of the object when the sensing light is emitted, the light receiving area configured to be wide in a direction perpendicular to the scanning direction.
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Abstract
A discrimination sensor includes a light emitting device individually emitting sensing light beams onto a surface of an object, such as a bill and having a sensing area that is wide in a direction perpendicular to a scanning direction; and a light detecting device assuring a light detecting area that is wide in a direction perpendicular to the scanning direction and detecting light coming from a surface structure of the bill when the sensing light is emitted. The light emitting device and the light detecting device are integrated with each other.
40 Citations
23 Claims
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1. A discrimination sensor that optically detects a surface structure of an object by scanning along a surface of the object, the discrimination sensor comprising:
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a light emitting device that emits sensing light to the surface of the object, the sensing light having a sensing area being wide in a direction perpendicular to the scanning direction; and
a light receiving device having a light receiving area that receives light generated on the surface structure of the object when the sensing light is emitted, the light receiving area configured to be wide in a direction perpendicular to the scanning direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A discrimination sensor that optically detects a surface structure of an object by scanning along a surface of the object, the discrimination sensor comprising:
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a sensor unit having an optical path opening widely opened in a direction perpendicular to the scanning direction;
a light emitter that is provided in the sensor unit and emits light;
a light receiver that is provided in the sensor unit and receives light; and
a focusing optical system that focuses the light emitted from the light emitter towards the optical path opening, and focuses light that is incident into the sensor unit through the optical path opening to the light receiver, wherein the focusing optical system focuses the light emitted from the light emitter towards the optical path opening and onto the surface of the object as a sensing light having a sensing area being wide in a direction perpendicular to the scanning direction, and wherein the focusing optical system focuses light generated on the surface structure of the object and is incident into the sensor unit through the optical path opening to the light receiver. - View Dependent Claims (12, 13, 14, 17, 18, 19, 20, 21, 22, 23)
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15-16. -16. (canceled)
Specification