Large-diameter parallel light pipe wavefront and image surface position calibration device and method

The invention belongs to the field of photoelectricity testing and relates to a large-diameter parallel light pipe wavefront and image surface position calibration device and method. The device comprises a fiber laser, a two-dimension precision long guiding track, a CCD camera and a control unit. The method comprises the steps that (1) the CCD camera is arranged on the two-dimension precision long guiding track; (2) fiber laser power is adjusted until the CCD camera can receive fiber laser light intensity; (3) the CCD camera obtains center-of-mass coordinates of image points emitted by the fiber laser at different positions of the two-dimension precision long guiding track; (4) the CCD camera obtains center-of-mass coordinates of image points emitted by a parallel light pipe to be calibrated at different positions of the two-dimension precision long guiding track; (5) the wavefront position of the parallel light pipe to be calibrated is determined; and (6) the image surface position of the parallel light pipe to be calibrated is determined. Accurate testing of large-diameter parallel light pipe wavefront and focal plane positions can be achieved.