Multichannel close-up imaging device

A device for optically close-up imaging at least a part of an object, the device having an optical axis and comprising:

• a first array of first microlenses, each first microlens comprising a first catoptric system or a first catadioptric systems, the first array having a first side arranged to face the object, and a second side opposite the first side, each first microlens forming a first optical channel coming from the object on the first side, the first optical channel having a diameter Dch1, and the first catoptric system or the first catadioptric system being configured for having a field of view that includes off-axis rays with respect to a primary mirror, a dimension of the field of view being strictly greater than the diameter Dch1;
• a second array of second microlenses, each second microlens comprising a second catoptric systems or a second catadioptric system,
• each second microlens being aligned with a first microlens on an axis parallel to the optical axis, wherein the first array comprises:
• a first slide of transparent material arranged to face the object, the transparent material absorbing less than 50% of energy of light rays in the visible range,
• a first complementary array of metallic film secondary mirrors covering the first slide, each secondary mirror being adapted to reflect a light ray coming from a side opposite the object relative to the first slide,
• a second slide of transparent material, the first slide being arranged between the object and the second slide,
• a second complementary array of metallic film primary mirrors covering the second slide, each primary mirror being adapted to reflect a light ray coming from a side facing the object relative to the second slide, each primary mirror comprising a hole, said hole being adapted to transmit light reflected by the secondary mirror through the primary mirror, each first catoptric system or catadioptric system comprising at least one of the primary mirrors of the second complementary array of metallic film primary mirrors and one of the secondary mirrors of the first complementary array of metallic film secondary mirrors, and wherein the second array comprises:
• a third slide of transparent material arranged on a side opposite to the object relative to the first array,
• a third complementary array of metallic film quaternary mirrors covering the third slide, each quaternary mirror being adapted to reflect a light ray coming from a side opposite to the first array relative to the third slide,
• a fourth slide of transparent material, the third slide being arranged between the first array and the fourth slide,
• a fourth complementary array of metallic film tertiary mirrors covering the fourth slide, each tertiary mirror being adapted to reflect a light ray coming from a side facing the first array relative to the fourth slide,
• each quaternary mirror comprising a hole in the quaternary mirror, said hole being adapted to transmit light reflected by the secondary mirror through the quaternary mirror,
• each second catoptric system or second catadioptric system comprising at least one of the quaternary mirrors of the third complementary array of metallic film quaternary mirrors and one of the tertiary mirrors of the fourth complementary array of metallic film tertiary mirrors.