Diffraction image transmission method
An image and diffracted light technology, applied in the direction of diffraction grating, optics, instruments, etc., can solve the problems of not seeing, directly seeing the object image, rarely seeing the purpose of the grating to transmit the image, etc.
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[0031] In each of the above-mentioned figures, only the optical path of this order of diffracted light beams that realize the converging spectral effect has been drawn, and other levels of light (including zero-order light) have not been drawn; and the optical path diagram is a top view of the actual optical path. Object O is a light-transmitting slit illuminated by an incandescent lamp (this object can be replaced with other bright objects). The present invention will be further described below in conjunction with the accompanying drawings, and the meanings of the mentioned parameters are consistent with the aforementioned grating imaging equation.
[0032] The converging spectral effect is the basis for the realization of the method of the present invention, figure 1 A schematic diagram of the confluence spectral effect. In the figure λ 1 , lambda 2 , lambda 3 is the spectrum formed by point objects arranged by color, in which light of different colors is incident on G a...
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