PREPARATION METHOD FOR VARIABLE-FOCUS MICROLENS GROUP AND VARIABLE-FOCUS MICROLENS GROUP

• Main Authors: LIAO, Changrui, LI, Bozhe, LIU, Yifan, WANG, Yiping
• Format: Patent
• Language: Chinese; English; French
• Published: 07.04.2022
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

A preparation method for a variable-focus microlens group (14) and the variable-focus microlens group (14), the preparation method comprising the following steps: S100: providing a non-magnetic lens barrel (141) in which a non-magnetic lens (143) with a fixed position is formed, and injecting a magnetic photoresist into the non-magnetic lens barrel (141); S200: according to a three-dimensional model of a magnetic lens (142), projecting femtosecond laser pulses to a focal point while driving the magnetic photoresist in the non-magnetic lens barrel (141) to move three-dimensionally so as to position polymerization and curing points of the magnetic photoresist to the focal point for polymerization and curing, so that the interior of the magnetic photoresist is polymerized and cured into the shape of the magnetic lens (142); and S300: using a developer to remove the magnetic photoresist that are not polymerized and cured to obtain the magnetic lens (142) that may move along an optical axis in the non-magnetic len