Component prism-based phase diversity wavefront sensor
A wavefront sensor and phase difference technology, used in instruments, scientific instruments, measuring devices, etc., can solve the problems of easy mutual interference of first-order diffracted beams, difficult grating processing, and high requirements, so as to improve the detection ability and increase the processing difficulty. , The effect of processing is not difficult
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[0023] Such as figure 1 , 2As shown, the combined prism-based phase difference wavefront sensor of the present invention includes: a lens 1 , a combined prism 2 , an imaging detector CCD 3 and a computer 4 . The combined prism 2 is composed of the first dichroic prism S1 and the second dichroic prism S2, the first right-angle triangular reflector S3 and the second right-angle triangular reflector S4; first, the parallel light beam containing the distorted wavefront is irradiated vertically on the surface of the lens 1, After being focused by the lens 1, the parallel light beam becomes a converging light beam, and the converging light beam is vertically incident on the front surface of the first dichroic prism S1 in the combination prism 2, and the incident light beam is divided into two beams by the first dichroic prism S1, and the transmitted light beam is in accordance with the original The direction continues to propagate, and after the second beam splitting prism S2, the ...
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