Sphere/Plane Multi-scale&Multi-aperture Optical Imaging Systems

Optical imaging systems with large field-of-view & high resolution are widely used in various fields. Conventional optical systems cannot achieve both large FOV & high resolution due to the trade-offs between field-of-view and high resolution. The complexity & the geometry size of the system will be increased to obtain higher possible resolution in larger field of view. Therefore, a new configuration is needed to break through the limitations of conventional optical design. Multi-scale & multi-aperture optical imaging system is a novel optical modalit y, taking into account the system's field of view and resolution, while the system structure is simple and compact in size.Around multi-scale multi-aperture optical imaging system, this paper includes the following aspects:In the theoretical analysis of multi-scale & multi-aperture optical imaging system, define performance saturation ? based on space bandwidth product(SBP) and Shannon diffraction limit as an index to evaluate the information efficiency of an optical system; By studying the pixel rearrangement method and multi-channel digital image processing and building digital mosaic model, we guaranteed adjacent sub-images have some overlapping fields by adjusting magnification and arranging architecture arrangement of field processors to coping the Non-continuous imaging characteristics of multi-scale & multi-aperture optical imaging system; The relationship between the radius of curvature concentric systems, materials, focal length and other specific parameters were derived in order to establish a more comprehensive multi-scale & multi-aperture optical imaging system design.In the spherical multi-scale & multi-aperture optical imaging system design, the multi-level structure used in proposed system has optical characteristics of all levels, the multi-scale & multi-aperture design processing field-independent wave-front aberration locally, making the design constraints more flexible and convenient compared with the conventional full-field design. The main optical component of spherical multi-scale & multi-aperture optical imaging system is a monocentric lenses, which is imaged on a spherical surface and strictly symmetrical at the full-view without any aberrations associated with field, while it has consistent resolution making all processors same configuration.In the plane multi-scale & multi-aperture optical imaging system design, since planar imaging system design difficulty is much higher than the spherical imaging system, the processors have to be modified using aspherical lens and be extended to more scale with non-uniform layout of the form. Finally, the design results were analyzed and discussed, compared with the traditional system, thus the system can achieve higher resolution in the case of large field of view.