Method and device for measuring light beam angle

Abstract

The invention aims to overcome the defects of the present method, provides a method for measuring a light beam angle and also provides a device for measuring the light beam angle. The method comprises the following steps: amplifying a flare angle of parallel light beam passing by a telescope system relative to a horizontal line; causing the light beam to enter into a photoelectric detector, detecting the position information of the center of the light beam on a sensor by the photoelectric detector, and simply converting the position information, thereby obtaining angle information; simultaneously receiving the information of an electronic level meter and the photoelectric detector by a data processing unit; giving an inclined angle between the axis and the horizontal line in the whole light beam angle measuring device system by the electronic level meter; indirectly giving the inclined angle between a to-be-measured light beam and the axis of the whole light beam angle measuring device system by the photoelectric detector; calculating, thereby obtaining the inclined angle between the to-be-measured light beam and the horizontal line; and performing by using a peripheral circuit, thereby sending a numerical value of the inclined angle between the to-be-measured light beam and the horizontal line to a display unit.

Description

technical field [0001] The invention belongs to the field of optics, in particular to the field of optical detection, and relates to a photoelectric detection system for beam angle detection. technical background [0002] In optical research, experiments, and equipment debugging, it is often necessary to have an accurate incident angle of parallel light. Therefore, it is first necessary to measure or accurately monitor the relative angles of parallel light travel to adjust the angle of the light source or optical elements. [0003] The telescope system magnifies the angle of the object whose object distance is infinite, that is, parallel light; the incident is parallel light, and the output is also equal light. If the telescope system is not adjusted, its angular magnification is fixed. Therefore, a telescope can be used to magnify the angle of parallel light for precise measurement. [0004] At present, in general optical experiments, the adjustment of the incident angle...

AI Technical Summary

Problems solved by technology

However, it is difficult to ensure that the absolute height of the aperture diaphragm or other references is always constant during the movement process, and such adjustment is very troublesome

As another example, if it is desired to add parallel flat plates, splitter flat plates or reflectors to adjust the horizontal and precise turning angle of the chief ray at a 45-degree angle, or to require the light beam to travel precisely along the vertical angle, the existing methods will be more difficult or even impossible.

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