360-degree total reflection prism and its arrangement method

Abstract

The invention discloses a 360-degree total reflection prism and an arrangement method thereof, which comprises circular arrangement of upper and lower cylindrical prism arrays arranged on the same reference sphere, the upper cylindrical prism array and the lower cylindrical prism array are based on the reference sphere The equator line is arranged symmetrically, and the central axis of rotation of the upper and lower cylindrical prism arrays coincides with the central axis of the reference sphere, wherein the cylindrical prisms in the upper and lower cylindrical prism arrays have three mutually perpendicular reflective surfaces and the incident surface inclined to the reflective surface, the incident surface of each cylindrical prism is tangent to the spherical surface of the reference sphere, and the prism axes of the incident surfaces of the cylindrical prism intersect with the center of the reference sphere. The 360-degree total reflection prisms and the arrangement method thereof in the present invention not only avoid the defect of measurement dead angle of a single row of 360-degree prisms, but also solve the problem that the center heights of different rows of prisms among multiple rows of 360-degree prisms are not the same and there are measurement errors. question.

Description

technical field [0001] The invention relates to an optical measuring instrument, in particular to a 360-degree total reflection prism and an arrangement method thereof. Background technique [0002] With the continuous improvement of engineering measurement accuracy and automation, the total station or range finder with automatic collimation, locking and tracking functions has broad application prospects in dynamic tracking measurement, automatic measurement and deformation monitoring. The reflective prism is an important part of the measurement system of the total station or rangefinder. Its function is to measure the angle, measure the distance, accurately aim at the target and signal reflect the target, so as to realize the measurement of the angle, distance and position of the system. At present, the main types of reflective prisms are single prism and prism group. When in use, the front sight of the total station telescope is precisely aligned with the center of the pri...

AI Technical Summary

Problems solved by technology

The acceptable incident light angle of the existing ordinary reflective prism is only ±45°. When measuring, it needs to be adjusted to face the direction of the light source, which cannot achieve arbitrary omnidirectional sighting, which brings inconvenience to the tracking and measurement work.

[0003] Although the chrome-plated steel ball developed on this basis can reflect light at 360 degrees, but because the intensity of the reflected light will be greatly reduced, it can only be used for very close-range measurements. The single-row 360-degree prism still has a measurement dead angle, no The real 360-degree prism, but in the multi-row 360-degree prism, the center height of different rows of prisms is different, there is a measurement error, and it can only measure the distance of more than 10m

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