Device and method for measuring modulation transfer function
A technique of modulating transfer function and measuring direction, which is applied in the direction of testing optical performance, etc. It can solve the problems of inaccurate registration of fringe image and image detector pixel, inability to measure MTF value, and reduction of pixel number, etc., to achieve design and production Convenience, simple structure, and the effect of reducing the influence of accuracy
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[0026] Example 1
[0027] This embodiment provides a device and method for measuring the modulation transfer function of an optoelectronic instrument.
[0028] See attached figure 2 , Which is a schematic structural diagram of a modulation transfer function measurement device provided by this embodiment. Before measurement, the measuring instrument needs to be calibrated: the light source 7 is placed at the focal point of the collimator lens 8, the light source is turned on, and the light emitted by the light source passes through the collimator lens to output parallel light with uniform intensity; the resolution plate 9 is placed on the collimator tube The bracket in 5 is located at the center of the cross section of the collimator, which can be observed through the eyepiece 6; the optoelectronic instrument 10 to be tested is placed at the exit of the collimator, and is connected to the guide rail 12 through a two-dimensional translation stage 11. Adjust the height of the two-di...
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