PRISM DEVICE APPLIED TO PERISCOPIC LENS MODULE AND PERISCOPIC LENS MODULE

• Main Authors: LI, Gang, ZHANG, Jin, LI, Linzhen, LU, Jiliang
• Format: Patent
• Language: Chinese; English; French
• Published: 10.12.2020
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

A prism device applied to a periscopic lens module and a periscopic lens module. The prism device (10) comprises a bearing frame (11), a supporting and resetting assembly (12), a prism (13) and several shape memory alloy wires (14). The bearing frame (11) comprises a base body (111) having a recessed cavity (1111) and a supporting platform (112) provided within the recessed cavity (1111). The shape memory alloy wires (14) include a first shape memory alloy wire (141), a second shape memory alloy wire (142), a third shape memory alloy wire (143) and a fourth shape memory alloy wire (144), the first shape memory alloy wire (141) and the second shape memory alloy wire (142) are used to drive the supporting and resetting assembly (12) to drive the prism (13) to rotate about a first rotation center axis, the third shape memory alloy wire (143) and the fourth shape memory alloy wire (144) are used to drive the supporting and resetting assembly (12) to drive the prism (13) to rotate about a second rotation center ax