A Measuring Method of Groove Angle of Transmission Plane Blazed Grating
A technology of blazed gratings and measurement methods, applied in the field of optics, can solve problems such as high error, complex principles, and many deduction steps, and achieve the effect of low experimental requirements, simple principles, and few deduction steps
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the 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.
[0043] Such as figure 1 , figure 2 and image 3 As shown in , a method for measuring the groove angle of a transmissive planar blazed grating, before the test starts, a test light path is first built, and the test light path is specifically as follows figure 1 As shown, the blazed grating 1 to be tested is vertically arranged on a precision rotary table 2, and the central axis of the blazed grating 1 is set to coincide with the rotation axis of the precision rotary table 2, that is...
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