Method and equipment for digitized detection of double-plain shaft parallelism of optical instrument

Abstract

The invention discloses a method for detecting the optically biaxial parallelism of an optical instrument on a digitized basis and a device thereof, wherein, the method comprises the following steps: dividing parallel light with a cross-shaped image emitted by a collimator into two beams of light which are strictly parallel to each other by a light dividing device; irradiating the two beams of light to the left eyepiece and the right eyepiece of an optical instrument to be measured respectively; emitting the light from the eyepieces of the instrument; then, synthesizing the light through a fusion device to generate an image with two cross-shaped patterns; and transmitting the synthetic image to a computer for processing by a camera probe. The inclined angle of the two images and the non-superposition degree of the two cross-shaped patterns serve as quantitative indexes in parallelism judgment; and the two images are superposed after the tilt correction of the image shown in the instrument to further judge the parallelism of the two optical axes of the instrument. By adopting the method, the invention has the advantages that not only the workload is reduced; but also the operating time is shortened; and the precisions of detection and correction are greatly improved as the quantitative indexes in parallelism judgment can be obtained through the computer.

Description

technical field [0001] The invention relates to a method for detecting the performance of an optical instrument, in particular to a method for digitally detecting the parallelism of two optical axes in an optical instrument with double lens barrels and its equipment . Background technique [0002] The existing manual detection method uses a dual optical axis calibration instrument for detection. The detection method is: aim the instrument under test at the cross target, adjust the diopter screw to see the target clearly, move the optical axis instrument so that the left lens barrel is aligned with the cross target, Then check to see if the cross targets on the right and left lens barrels are within the rectangular frame. If so, it indicates that the indicators meet the requirements. This method can only be a qualitative inspection. Since the detection method adopts a manual operation mode, the input workload is large, the operation time is long, and the accuracy of detectio...

AI Technical Summary

Problems solved by technology

[0002] The existing manual detection method uses a double optical axis calibration instrument for detection. The detection method is: aim the instrument under test at the cross target, adjust the diopter screw to see the target clearly, move the optical axis instrument so that the left lens barrel is aligned with the cross target, Then check whether the cross targets on the right and left lens barrels are within the rectangular frame. If so, it indicates that the indicators meet the requirements. This method can only be a qualitative inspection

Since the detection method adopts manual operation, the input workload is large, the operation time is long, and the accuracy of detection and correction is low.

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