Wide-spectrum-band diffraction optical imaging system
A diffractive optics and imaging system technology, applied in the field of wide-spectrum diffractive optics imaging systems, can solve problems such as insufficient elimination of diffractive optical elements, inability to meet imaging requirements, and difficulty in implementation, so as to reduce the difficulty of chromatic aberration correction and achieve miniaturization , the effect of reducing hardware complexity
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[0024] The present invention proposes a wide-spectrum diffractive optical imaging system, such as figure 1 As shown, it includes: an optical module, a detector module and an image restoration module; the optical module includes a harmonic diffractive optical element and a wavefront encoding element, and the wavefront encoding element is placed between the harmonic diffractive optical element and the detector module; Convergent imaging of optical elements, the wavefront encoding element performs aberration modulation on the converging light; the detector module receives the modulated light and performs photoelectric conversion to obtain the modulated image; the image restoration module decodes the modulated image output by the detector module Adjustment can eliminate aberrations and obtain wide-spectrum clear images.
[0025] The harmonic diffractive optical element is the primary mirror of the wide-spectrum diffractive optical imaging system, and the phase modulation function ...
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