Fingerprint imaging assembly, fingerprint imaging module and electronic equipment
The invention provides a fingerprint imaging assembly, a fingerprint imaging module and electronic equipment, which are used for reducing the process complexity of the fingerprint imaging assembly and improving the signal identification precision of the fingerprint imaging assembly. The fingerprint...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a fingerprint imaging assembly, a fingerprint imaging module and electronic equipment, which are used for reducing the process complexity of the fingerprint imaging assembly and improving the signal identification precision of the fingerprint imaging assembly. The fingerprint imaging assembly comprises a diffraction layer, a wavelength selection layer and a photosensitive layer which are arranged in sequence, the diffraction layer comprises a plurality of metal girdle combinations arranged in an array; the metal ring band combination comprises a plurality of metal rings which are distributed at intervals and diffraction slits which are formed among the metal rings and are arranged at different intervals, and the ring band widths of all the metal rings in the metal ring band combination are different; the wavelength selection layer is provided with a first type of through holes through which light rays with preset wavelengths pass, and the first type of through holes are located at diffr |
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