Biometric object sensor and method

A method of sensing an image of a biometric object comprising:

• directing a first light source having a first wavelength λ1 on the object;
• directing a second light source having a second wavelength λ2 on the object;
• detecting the light of the first wavelength λ1 and the light of the second wavelength λ2 reflecting from the biometric object being imaged and producing a first output indicative of the amount of reflectance of the light of the first wavelength λ1 and a second output indicative of the amount of reflectance of the light of the second wavelength λ2;
• and
• comparing, via a computing device, the difference between the first output and the second output with an authenticity threshold.

A machine readable medium storing instructions that, when executed by a computing device, cause the computing device to perform a method, the method comprising:

• directing a first light source having a first wavelength λ1 on a biometric object being imaged;
• directing a second light source having a second wavelength λ2 on the biometric object being imaged;
• detecting the light of the first wavelength λ1 and the light of the second wavelength λ2 reflecting from the biometric object being imaged and producing a first output indicative of the amount of reflectance of the light of the first wavelength λ1 and a second output indicative of the amount of reflectance of the light of the second wavelength λ2;
• and
• comparing the difference between the first output and the second output with an authenticity threshold.

A biometric image sensor comprising:

• a light source configurable to emit a first wavelength λ1 of light and a second wavelength λ2 of light;
• a photodetector configurable and positionable to receive one or more electromagnetic radiation wavelengths reflected from a surface in response to the first wavelength λ1 and the second wavelength λ2 wherein the reflected electromagnetic radiation is reflecting from a biometric object being imaged to produce a first output indicative of the amount of reflectance of the light of the first wavelength λ1 and a second output indicative of the amount of reflectance of the light of the second wavelength λ2;
• and
• a computing device configured to compare the difference between the first output and the second output with an authenticity threshold.

A method of sensing an image of a biometric object comprising:

• directing a first light source having a first wavelength λ1 on the object;
• directing a second light source having a second wavelength λ2 on the object;
• detecting one or more electromagnetic radiation wavelengths reflected from a surface in response to the first wavelength λ1 and the second wavelength λ2 wherein the reflected electromagnetic radiation is reflecting from a biometric object being imaged to produce a first output indicative of the amount of reflectance of the light of the first wavelength λ1 and a second output indicative of the amount of reflectance of the light of the second wavelength λ2, and
• comparing, via a computing device, the difference between the first output and the second output with an authenticity threshold.

A machine readable medium storing instructions that, when executed by a computing device, cause the computing device to perform a method, the method comprising:

• directing a first light source having a first wavelength λ1 on a biometric object being imaged;
• directing a second light source having a second wavelength λ2 on the biometric object being imaged;
• detecting one or more electromagnetic radiation wavelengths reflected from a surface in response to the first wavelength λ1 and the second wavelength λ2 wherein the reflected electromagnetic radiation is reflecting from a biometric object being imaged to produce a first output indicative of the amount of reflectance of the light of the first wavelength λ1 and a second output indicative of the amount of reflectance of the light of the second wavelength λ2, and
• comparing the difference between the first output and the second output with an authenticity threshold.