Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"aspheric"”.
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Aspheric geodesic lenses for an integrated optical spectrum analyser
Abstract available p. xiii-xiv
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Ocular biometric change in orthokeratology. An investigation into the effects of orthokeratology on ocular biometry and refractive error in an adult population.
… were applied right eye) pentacurve and left eye) aspheric. The aspheric design was chosen to more closely mimic the cornea¿s natural shape. Anterior and posterior apical radii and p-values; corneal thickness and anterior chamber depth were measured using the Orbscan IIz; together with ocular …
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Next Generation Computer Controlled Optical Surfacing
… first topic is to develop a tool for highly aspheric optics fabrication. Both the TIF stability and surface finish rely on the tool maintaining intimate contact with the workpiece. Rigid tools smooth the surface, but do not maintain intimate contacts for aspheric surfaces. Flexible tools …
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Additive Lithography Fabrication And Integration Of Micro Optics
… and reflow processes for fabricating complex aspheric lens elements, including aspheric elements whose fabrication often proves highly problematic. It will be demonstrated that employing additive lithography for volume sculpting followed by controlled reflow can also allow us to fabricate …
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Materials and design strategies for solar microcells
… spectrum splitting configuration as well as an aspheric lens with a high degree of chromatic aberration are discussed. Experimental results are presented that show the aspheric lens can be incorporated into a multijunction spectrum splitting solar cell design. Experimental performances for InGaP …
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Development of an ultraprecision shaping machine for manufacturing of Stavax lens molds
The production of high-precision aspheric microlenses has become increasingly difficult due to an increase in the complexity of the profile, the decrease in the lens’ size, and the demand for tighter tolerances. Machines built to fabricate these lenses generally include several expensive components …