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Image capturing apparatus

  • US 9,964,436 B1
  • Filed: 11/30/2017
  • Issued: 05/08/2018
  • Est. Priority Date: 12/11/2015
  • Status: Active Grant
First Claim
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1. A image capturing apparatus, comprising:

  • a cover plate;

    a light source;

    a sensor, disposed next to the light source, wherein the light source and the sensor are located on the same side of the cover plate; and

    a collimator, disposed between the cover plate and the sensor and comprising a plurality of collimating elements overlapping with each other, wherein each of the collimating elements comprises a transparent substrate and a light absorbing layer disposed on the transparent substrate, the light absorbing layer comprises a plurality of light passing openings, the light passing openings expose a plurality of sensing areas of the sensor, spacing between the light passing openings is S, a width of each of the light passing openings is W, and W<

    S, and a transparent substrate thickness of a first collimating element in the collimating elements is T1, a transparent substrate thickness of a second collimating element in the collimating elements is T2, and the image capturing apparatus satisfies;

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