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Array camera architecture implementing quantum film image sensors

  • US 9,888,194 B2
  • Filed: 03/11/2014
  • Issued: 02/06/2018
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. An array camera module comprising:

  • a semiconducting integrated circuit substrate;

    a plurality of focal planes, where each focal plane comprises a plurality of rows of pixels that also form a plurality of columns of pixels and each focal plane is contained within a region of the semiconducting integrated circuit substrate that does not contain pixels from another focal plane;

    at least one quantum film associated with one of the plurality of focal planes, located on the surface of the semiconducting integrated circuit substrate, where each quantum film comprises a plurality of quantum dots;

    wherein the at least one quantum film includes only quantum dots that are sensitive to a specific portion of the electromagnetic spectrum that approximately corresponds to wavelengths characterized as one of;

    X-ray radiation, ultraviolet radiation, visible radiation, and near infrared radiation;

    control circuitry configured to control the capture of image information by the pixels within the focal planes, where the control circuitry is configured so that the capture of image information by the pixels in at least two of the focal planes is separately controllable; and

    sampling circuitry configured to convert pixel outputs into digital pixel data; and

    a set of microlenses positioned over the at least one quantum film, wherein each microlens of the set of microlenses focuses light onto a single pixel of a first focal plane of the plurality of focal planes, wherein each microlens of the set of microlenses has a chief ray angle (CRA) greater than a first CRA necessary to focus incoming light onto a light sensitive element within the semiconducting integrated circuit substrate and not greater than a second CRA necessary to focus incoming light onto a surface of the at least one quantum film associated with the first focal plane.

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