Spectacle lens free-form surface refractive distribution detection method, terminal equipment and medium

• Main Authors: GAO FAN, XIONG LILI, BIAN LIRONG, DONG XUECHUAN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a spectacle lens free-form surface refractive distribution detection method, terminal equipment and a medium, and the method comprises the steps: controlling an illumination module to emit uniform illumination light, illuminating the frosted bottom surface of an optical long-strip glass body, employing a focusing imaging module to image the frosted bottom surface, and adjusting the position of a focusing lens in the focusing imaging module to detect the refractive distribution of the free-form surface of the spectacle lens. Acquiring an image sequence of the frosted bottom surface; according to the image sequence of the frosted bottom surface, acquiring a change curve of the definition of the images at different positions of the frosted bottom surface along with the position of the focusing lens; according to the maximum value of the change curve, refraction compensation differences of different positions of the frosted bottom surface are determined, refraction information of different