Lateral magnification measuring method for point target image-spliced optical system and lateral magnification measuring device
A technology of lateral magnification and optical system, which is applied in the field of optical system lateral magnification measurement and device using point target image stitching, can solve the problem of low repeatability of lateral magnification measurement, achieve small error, improve repeatability, and share effect of error
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[0055] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0056] figure 1 A schematic structural diagram of a measuring device for measuring the lateral magnification of an optical system using point and target images; the device includes a point target 1, an optical system 2, an image sensor 3, a slider 4 and a first guide rail 5 perpendicular to the optical axis. The target 1 is imaged onto the surface of the image sensor 3 through the optical system 2; and the device also includes a second guide rail 6 along the optical axis direction, and the slider 4 carrying the point target 1 is mounted on the first guide rail 5 and the second guide rail 6, The movement of the slider 4 on the first guide rail 5 is coordinated with the movement of the slider 4 on the second guide rail 6, so that the point target 1 is in-focus imaged on the surface of the image sensor 3 at any field of view position; am...
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