Reflecting mirror wavefront coding imaging system
A wavefront encoding and imaging system technology, applied in the field of optics, can solve the problems of optical transfer function reduction, damage consistency, etc., and achieve the effects of size change, reduced installation difficulty, and simplified wavefront encoding optical system
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[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0024] First of all, let’s introduce Wavefront Coding (WFC for short), which is a technology developed in the 1990s that can expand the focal depth of the system. Dowski and Cathey proposed in 1995 to add a specially designed aspheric phase plate to the aperture or exit pupil of the traditional imaging system to encode the subject, so that the modulation transfer function (MTF) of the system is within a larger focal depth range It is not sensitive t...
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