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Design principle and application of off-axis reflection parallel light tube

2022-10-11 08:46:53
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The principle and application of off-axis reflection parallel light tube: because the reflection system is less limited by the material, it is easy to lightweight design, there is no color difference, and the system transmittance is high; The off-axis reflection structure has been widely used in the design of parallel optical tubes because there is no center shielding and the focus is directed outside the main mirror, and the optical path can be folded to reduce the system volume.


The main function of parallel optical tube is to generate parallel light to simulate infinitely distant targets, and it is a high precision optical instrument commonly used in optical system testing. With the increasing requirements of photometric systems, parallel optical tubes are also developing in the direction of large aperture and long focal length. Therefore, the off-axis reflection parallel optical tube with the advantages of small volume, compact structure, large aperture, long focal length and no center blocking has become a research hotspot. In order to obtain better image quality, aspheric surface in off-axis reflection parallel optical tube is a very effective method.


Off-axis reflection parallel optical tube is mainly used for optical system optical axis adjustment of optical instruments, the instrument has the advantages of large aperture measurement, wide spectrum range, is a special instrument for optical instrument multi-optical axis adjustment, mainly used for laser optical axis, TV optical axis, visual optical axis between the optical axis parallelism adjustment, equipped with other accessories can also be used to measure other parameters of the optical system.



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