4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

David Stoltzmann

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Apparatus and method for illumination of an optical platen

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
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High performance fingerprint imaging system

Optics: measuring and testing – Document pattern analysis or verification
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Multi-color illumination device in fingerprint imaging...

Illumination – Plural light sources – Particular wavelength
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Profile ID: LFUS-PAI-P-3017851

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