Cube-corner prism optical vertex aiming device and assembling and regulating method thereof

Abstract

The invention relates to the field of development of a photoelectric instrument, and discloses a cube-corner prism optical vertex aiming device and an assembling and regulating method thereof. The cube-corner prism optical vertex aiming device comprises an autocollimation instrument, a spectroscope and a reflector which are sequentially arranged along the same optical path; the autocollimation instrument is used for emitting measurement light and detecting emergent and incident angles of the measurement light; the reflector is arranged on a transmission optical path of a first light splittingface of the spectroscope relative to the autocollimation instrument; and an image detector and an imaging lens are sequentially arranged on a reflection optical path of a second light splitting face of the spectroscope relative to the reflector. According to the invention, in order to accurately acquire reference coordinates on a position sensitive device, and before the reference coordinates areacquired, the autocollimation instrument is utilized to replace a laser, and the image detector and the imaging lens are adopted to replace the position sensitive device, so as to carry out assemblingand regulation on the cube-corner prism optical vertex aiming device, improve measurement accuracy and meet the high-accuracy positioning requirement of an optical vertex of a cube-corner prism.

Description

technical field [0001] The invention relates to the field of photoelectric instrument development, in particular to a corner-cube prism optical apex aiming device and an assembly method thereof. Background technique [0002] Currently, the calibration of laser trackers is usually done with a corner cube standard ruler. The corner cube prism is a tetrahedron, three isosceles right triangles perpendicular to each other are reflective surfaces, and the bottom surface is an equilateral triangle. The optical characteristic of the corner cube prism is that the light incident on the prism from the bottom surface in any direction, after being sequentially reflected by the three mirrors, the outgoing light is emitted in a direction parallel to the incident light, that is, the outgoing light is rotated by 180° relative to the incident light. In particular, when the incident light is perpendicular to the bottom surface and enters the optical vertex of the corner cube, the outgoing lig...

AI Technical Summary

Problems solved by technology

Accurately calibrate the reference coordinates of the light spot on the position sensitive device is a necessary condition to realize the aiming of the optical vertex of the corner cube, but it is difficult to accurately calibrate the reference coordinates with the existing technology, and it is difficult to meet the high-precision positioning requirements of the corner cube optical vertex

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