中国物理B ›› 2024, Vol. 33 ›› Issue (2): 24103-024103.doi: 10.1088/1674-1056/ad09ce
Wen-Hao Miao(缪文浩)1, Ze-Feng Han(韩泽峰)1, Rui Zhao(赵瑞)1,†, Zhong-Cheng Liang(梁忠诚)1, Song-Feng Kou(寇松峰)2,3, and Rong-Qing Xu(徐荣青)1
Wen-Hao Miao(缪文浩)1, Ze-Feng Han(韩泽峰)1, Rui Zhao(赵瑞)1,†, Zhong-Cheng Liang(梁忠诚)1, Song-Feng Kou(寇松峰)2,3, and Rong-Qing Xu(徐荣青)1
摘要: A compound varifocal lens based on electromagnetic drive technology is designed and fabricated, where the polydimethylsiloxane (PDMS) film acts as a driving component, while the PDMS biconvex lens and the plane-concave lens form a coaxial compound lens system. The plane-concave lens equipped with driving coils is installed directly above the PDMS lens surrounded by the annular magnet. When different currents are applied, the annular magnet moves up and down, driving the PDMS film to undergo elastic deformation, and then resulting in longitudinal movement of the PDMS lens. The position change of the PDMS lens changes the focal length of the compound lens system. To verify the feasibility and practicability of this design, a prototype of our compound lens system is fabricated in experiment. Our proposed compound lens shows that its zoom ability reaches 9.28 mm when the current ranges from -0.20 A to 0.21 A.
中图分类号: (Applied classical electromagnetism)