Interference fit equations for lens cell design

Ralph M. Richard; Tina M. Valente

doi:10.1117/12.48839

1 December 1991 Interference fit equations for lens cell design

Ralph M. Richard, Tina M. Valente

Proceedings Volume 1533, Optomechanics and Dimensional Stability; (1991) https://doi.org/10.1117/12.48839
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

Optical designs often consist of lenses which are mounted in a common lens barrel. One method for mounting these lenses is to mount each individual lens in its own subcell using an adhesive and then use an interference or press fit to mount these subcells in the lens barrel. When mounting lenses in this manner, it is necessary to evaluate the stress induced in the glass and the residual difference in the optical path. A closed form analytical derivation was made for a simple lens mount that relates the allowable magnitude of the interference fit to the stress in the glass. This theoretical expression was modified using finite element models in order that it may be used for complex lens designs. Proper modeling such as element material properties are addressed, as well as applications for various mounting conditions.

Citation Download Citation

Ralph M. Richard and Tina M. Valente "Interference fit equations for lens cell design", Proc. SPIE 1533, Optomechanics and Dimensional Stability, (1 December 1991); https://doi.org/10.1117/12.48839

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