Image capture device with integrated illumination and method for producing the device
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorJosep Segura-Puchades
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Abstract
An image capture device to produce images of an object in contact with or in immediate proximity to the device comprises a sensor and illumination means capable of emitting a first type of radiation to illuminate an object in order to obtain an image thereof, the sensor comprising pixels that are sensitive to a second type of radiation dependent on the first type of radiation emitted by the illumination means. The sensor is formed on a monolithic substrate comprising multiple passages that are transparent to the first type of radiation. The illumination means comprise at least one source of the first type of radiation positioned so as to face one of the passages. The invention also relates to a method for producing this device.
Claims13
An image capture device comprising:
- a sensor;
- and
- an illumination means configured to emit a first type of radiation to illuminate an object in order to obtain an image thereof,
- wherein the sensor comprises pixels that are sensitive to a second type of radiation dependent on the first type of radiation emitted by the illumination means, the pixels being arranged in an incomplete matrix having positions of at least one missing pixel, and the sensor is formed on a first monolithic substrate comprising multiple passages that are transparent to the first type of radiation, each of the passages occupying the position of at least one missing pixel, and
- wherein the illumination means comprises a second substrate parallel to the first substrate and bears multiple sources of the first type of radiation, one of the sources of the first type of radiation being positioned so as to face each of the passages.
A method for producing an image capture device comprising a sensor and an illumination means configured to emit a first type of radiation intended to illuminate an object in order to obtain an image thereof, the sensor comprising pixels that are sensitive to a second type of radiation dependent on the first type of radiation emitted by the illumination means, the pixels being arranged in an incomplete matrix having positions of at least one missing pixel, the sensor being formed on a first monolithic substrate comprising multiple passages that are transparent to the first type of radiation, each of the passages occupying the position of at least one missing pixel, the illumination means comprising a second substrate parallel to the first substrate and bearing multiple sources of the first type of radiation, one of the sources of the first type of radiation being positioned so as to face each of the passages, the method comprising:
- producing the sensor from the first substrate;
- producing the illumination means from the second substrate;
- and
- assembling the sensor and the illumination means.
Dependencies are inferred from the claim text.