Centering three-degree-of-freedom adjusting lens bracket capable of meeting environmental adaptability test

Abstract

The invention provides a centering three-degree-of-freedom adjusting lens bracket capable of meeting an environmental adaptability test. The bracket comprises an orientation adjusting seat, a adjusting gear, a pitching adjusting seat, and a lens; the edge surface of the orientation adjusting seat is gear-shaped; a centering shaft is arranged at the bottom of the orientation adjusting seat; an arc-shaped long hole taking the centering shaft as a circle center is formed in the orientation adjusting seat; the adjusting gear is meshed with the gear-shaped edge surface of the orientation adjustingseat; the adjusting gear is rotated, so thatthe orientation adjusting seat is pushed to move along the arc-shaped long hole with the centering shaft as the circle center; the pitching adjusting seat is provided with two adjusting shafts; the adjusting shafts are located in grooves; two round head cap bolts penetrate through the pitching adjusting seat and a vertical mounting seat to connect the pitching adjusting seat and the vertical mounting seat; the lens is rotationally connected into the pitching adjusting seat; the center of the lens coincides with a rotating shaft; the connecting line between the two adjusting shafts passes through the center of the lens; the central axis of the centering shaft passes through the center of the lens. According to the centering three-degree-of-freedomadjusting lens bracket, three-degree-of-freedom adjustment of rotation, pitching and orientation of the lens can be achieved, the three-degree-of-freedom adjustment is independent of one another, coupling linkage is avoided, and the center of the lens is kept unchanged all the time in the three-degree-of-freedom adjustment process.

Description

technical field [0001] The invention relates to the technical field of optical debugging, in particular to a centering three-degree-of-freedom adjustment spectacle frame that can satisfy environmental adaptability tests. Background technique [0002] In the optical path debugging of various optical systems, due to the uncertainty of the optical path in the design and debugging process, the lens structure, position fixation and other processing errors during the processing of the lens, it is necessary to adjust the optical path accurately when adjusting the optical path. The lens is adjusted constantly, and these constant adjustments mainly include the adjustment of the three degrees of freedom of rotation, pitch, and azimuth. [0003] Currently, in an optical system, lenses are usually installed on a frame. However, the existing mirror frames usually have the following problems: for example, some mirror frames do not have any adjustment mechanism. If the position after inst...

AI Technical Summary

Problems solved by technology

However, the existing mirror frames usually have the following problems: for example, some mirror frames do not have any adjustment mechanism. If the position after installation cannot meet the requirements, the optical path needs to be adjusted by adjusting the entire mirror frame. The bottom is padded with copper foil of different thickness to adjust it to tilt for pitch adjustment

However, such a frame has a small adjustment range, poor product replaceability, offset of the center point of the lens, and linkage of three degrees of freedom, which cannot be controlled independently, and the structural environment adaptability of the spring and screw combination is poor. The element will produce an uncontrollable positional offset; under high and low temperature conditions, the magnitude of the force generated by the elastic element will change, resulting in a change in position

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