27 February 2017 Development and characterization of a microsnap-fit for optical assembly
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Proceedings Volume 10120, Complex Light and Optical Forces XI; 101200J (2017) https://doi.org/10.1117/12.2254951
Event: SPIE OPTO, 2017, San Francisco, California, United States
Snap-fits are classified as interlocking connections and commonly used to assemble two or more components in a fast and cost efficient way. The mechanism is simply based on mechanical flexibility. Therefore, the applications cover a broad field ranging from automotive engineering to mobile phone design. By scaling and transferring the snap-fit mechanism into micrometer scale, advantages can also be utilized to assemble complex microsystems. In this paper, a microsnap-fit based on a cantilever design is developed and investigated by means of optical techniques only. Two-photon polymerization as micro-stereolithography is utilized to manufacture the microcomponents and the mechanical flexibility is analyzed by optical forces in a holographic optical tweezer setup. The locking mechanism is theoretically and experimentally characterized, e.g, the flexibility of the polymer with regard to the design is studied. It can be demonstrated that assembling as well as disassembling of microcomponents is achievable. These findings provide fast and easy assembling of complex microsystems in the fields of microrobotics, -sensors, and -mechanics.
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J. Köhler, J. Köhler, Y. Kutlu, Y. Kutlu, S. I. Ksouri, S. I. Ksouri, C. Esen, C. Esen, A. Ostendorf, A. Ostendorf, } "Development and characterization of a microsnap-fit for optical assembly", Proc. SPIE 10120, Complex Light and Optical Forces XI, 101200J (27 February 2017); doi: 10.1117/12.2254951; https://doi.org/10.1117/12.2254951

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