نتایج جستجو برای: tolerancing
تعداد نتایج: 271 فیلتر نتایج به سال:
This work presents the fabrication of 8X8 PDMS Fresnel microlens array (MLA) by maskless lithographic system. The FWHM intensity values of each spot present a deviation of 8%. Such a MLA can be applied as Shack-Hartmann wavefront sensor and to enhance the efficiency of detector arrays. OCIS codes: (080.2208) Fabrication, tolerancing; (080.4298) Nonimaging optics
Geometrical defects of a manufactured feature are limited by form, size and location tolerances. The standardized semantics of those tolerances, i.e. their interpretation on the manufactured feature, presents a lot of drawbacks. We propose new semantics, based on the fitting of a unique theoretical feature on the manufactured feature. The fitting criterion we propose, named minimum volume crite...
Our work discusses the tolerance modeling of an optical fiber that is inserted into a cylindrical alignment bore. We note that some commercial optical simulation software suites have the mechanical tolerance operands entered in Cartesian coordinates and if radial variation is entered as simple X and Y de-centering, there arises a kind of "corner condition" where fiber in the opto-mechanical mod...
Chatoyant is a tool for the simulation and the analysis of heterogeneous free-space optoelectronic architectures. It is capable of modeling digital and analog electronic and optical signal propagation with mechanical tolerancing at the system level. We present models for a variety of optoelectronic devices and results that demonstrate the system's ability to predict the effects of various compo...
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