Image input device that generates an image of an object
First Claim
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1. An image reading device which irradiates light emitted from a light emitter to an object and receives light by an optical sensor, the device comprising:
- a light guide for guiding the light from the light emitter to the object, wherein the object is positioned above the optical sensor;
a protector placed on the optical sensor, wherein the object is to be placed on the protector; and
a shade member placed between the light emitter and the optical sensor,wherein the shade member comprises a conductive material and has a part above the protector, is electrically grounded and is disposed at least partially between the periphery of the optical sensor and the light emitter, andwherein the object is a finger and the image reading device reads a fingerprint of the finger.
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Abstract
The present invention relates to an image input device including a substrate, a light sensor, a light emitter, and a light guide. The light sensor, the light emitter, and the light guide are provided on the substrate. The light emitted from the light emitter is guided to a position above the light sensor by the light guide.
17 Citations
13 Claims
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1. An image reading device which irradiates light emitted from a light emitter to an object and receives light by an optical sensor, the device comprising:
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a light guide for guiding the light from the light emitter to the object, wherein the object is positioned above the optical sensor; a protector placed on the optical sensor, wherein the object is to be placed on the protector; and a shade member placed between the light emitter and the optical sensor, wherein the shade member comprises a conductive material and has a part above the protector, is electrically grounded and is disposed at least partially between the periphery of the optical sensor and the light emitter, and wherein the object is a finger and the image reading device reads a fingerprint of the finger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An image reading device comprising:
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a light emitter which irradiates light; an optical sensor; a light guide for guiding the light from the light emitter to an object, wherein the object is positioned above the optical sensor, and wherein the optical sensor receives light diffused by the object; a protector placed on the optical sensor, wherein the object is to be placed on the protector; and a shade member placed between the light emitter and the optical sensor, wherein the shade member comprises a conductive material and has a part above the protector, is electrically grounded and is disposed at least partially between the periphery of the optical sensor and the light emitter, and wherein the object is a finger and the image reading device reads a fingerprint of the finger.
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Specification