Optical axis parallelity device of double optical axis system and method

Abstract

The invention discloses an optical axis parallelity adjusting device of a double optical axis system. The optical axis parallelity adjusting device includes two reflectors and two support structures, and two reflectors are the same in size and are mutual perpendicular. Each support structure includes two metal support arms, a bottom plate, a rotating shaft, a support rod and a bottom base. In the process of adjustment of optical axis parallelism, a optical system first enters a bunch of indicator light and regulates incident angle to make the indicator light reflect vertically, at the moment, the optical axis of the indicator light is perpendicular to the reflective surface. Then the device is rotated to a certain angle around the rotating shaft perpendicular to the bottom plate, making the indicator light to reflect on two pieces of reflector in turn. According to the principle of geometrical optics, the indicator light after two reflexes will be reflected back in parallel. Another optical system is equipped with a screen with a joint spider; by adjusting the optical axis direction of the optical system, reflected indicator light enters the screen of the optical system and overlaps with the center of the joint spider. At this point, the direction of the optical axes of two optical systems is parallel.

Description

technical field [0001] The invention belongs to the field of dual optical axis optics, and more particularly relates to an optical axis parallelism adjustment device and method for a dual optical axis system. Background technique [0002] The parallelism of the optical axes is an important parameter for precision laser processing equipment with dual-axis optical systems. In a laser processing system equipped with a video monitoring system and a laser ranging module, the parallelism between the visual axis of the video monitoring system, the optical axis of the ranging module and the optical axis of the laser emission is to ensure that the main laser beam acts accurately along the tracking and measuring axis. The key to the processing goal is the priority that must be guaranteed in design, processing, assembly and use. Before the equipment leaves the factory, it must be precisely adjusted and inspected in the assembly workshop, so that the parallelism error of the optical ax...

AI Technical Summary

Problems solved by technology

However, when the equipment leaves the factory, movement and long-term use will cause relative movement of the optical-mechanical parts, making the parallelism of the optical axis deviate from the normal technical index, so it is very necessary to realize rapid detection after leaving the factory and before field work

[0003] At present, the commonly used optical axis parallelism adjustment method in the industry is mainly the large-aperture collimator method. This method has fewer error links and high adjustment accuracy, and is widely used in the optical axis parallelism detection of large-scale optoelectronic equipment. However, the large-aperture The collimator is expensive, difficult to manufacture and bulky, it is impossible to transport it to the field, and it can only be used indoors

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