Circular carrier frequency digital holographic detection device and method based on improved Michelson structure
A digital holography, Michelson's technology, used in measurement devices, optical devices, instruments, etc.
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no. 1 example
[0049]figure 1 The structure of the first embodiment is shown in the first embodiment. Please refer tofigure 1 The circular carrier digital hologram detecting device based on the improved Michaelson structure includes: light source 1, a collimation beam system 2, a first lens 4, a non-polarized spectroscopic prism 5, a planar mirror 6, aperture mirror 7, Two lens 8, image sensor 9, the light beam emitted by the light source 1 sequentially incident on the first lens 4 after the alignment beam system 2 and the object 3 to be tested, and after the first lens 4 is focused The light beam is divided into a beam and a beam reference light by the non-polarizing stroke prism 5; the object is illuminated on the planar mirror 6, and the reference light is irradiated on the small hole mirror 7; after reflection Light and reference light, after completion of the non-polarized strip prism 5, after the second lens 8 generates a hologram, the image sensor 9 is collected by the image sensor 9; the f...
no. 2 example
[0050]Second Embodiment: The second embodiment is based on the first embodiment, which increases the microscope and the correction objective.
[0051]figure 2 The structure of the second embodiment is shown in the second embodiment. Please refer tofigure 2 The second embodiment is based on the circular carrier digital hologram detecting device for improving the Michaelson structure comprising: a light source 1, a collimation beam system 2, a first lens 4, a non-polarized shunt prism 5, a planar mirror 6, aperture mirror 7, the second lens 8, the image sensor 9, the microscope 10, and the corrective objective 11. Wherein, the microscopic mirror 10 and the correction objective 11 are sequentially disposed on the optical path from the object 3 to the first lens 4.
[0052]The second embodiment can be applied to a microscopic measurement based on the modified microphone digital holographic detecting device that improves the Michaelson structure.
no. 3 example
[0053]Third Embodiment: Round carrier digital holographic detection method based on improving Michaelson structure.
[0054]The circular carrier digital holographic detection method based on the improved Michaelson structure includes the following steps:
[0055](1) Adjust the light source 1, so that the light beam emitted by the light source 1 sequentially passes through the collimation beam system 2, the object 3, the first lens 4, and the non-polarized spectroscopic prism 5 form light and reference light, light and reference light. The non-polarized split prism 5 and the second lens 8 are formed by the plane mirror 6 and the small hole mirror 7, respectively, and transmitted to the computer by the image sensor 9;
[0056](2) Planar mirror 6 is driven to generate axial defocus distance Δf, introduced circular carrier frequency, image sensor 9 acquired to be tested 3 round carrier hologram 11, When not put into the object 3, the image sensor 9 collects the background round carrier hologram ...
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