Method and device for measuring pixel pitch of image sensor based on point-target image splicing technology
An image sensor, pixel pitch technology, applied in measurement devices, optical devices, instruments, etc., can solve problems such as defocusing, and achieve the effects of improving repeatability, reducing errors, and amortizing errors
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[0067] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0068] figure 1 A schematic diagram of the structure of an image sensor pixel pitch measuring device using point 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. 1 The image 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. The slider 4 carrying the point target 1 is installed on the first guide rail 5 and the second guide rail 6, sliding The movement of the block 4 on the first guide rail 5 is matched with the movement of the slider 4 on the second guide rail 6, so that the point target 1 is in-focus imaged onto the surface of the image sensor 3 at any field of view position; among them, the point target 1 is For a ...
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