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Optimax's sapphire production process achieves significant improvement in cost by implementation of a controlled grinding process to present the best possible surface to the polishing equipment. Following the grinding process is a polishing process taking advantage of chemical interactions between slurry and substrate to deliver excellent removal rates and surface finish. Through experiments, the mechanics of the polishing process were also optimized to produce excellent optical figure. In addition to reducing the cost of producing large sapphire sensor windows, the grinding and polishing technology Optimax has developed aids in producing spherical sapphire components to better figure quality.
In addition to reducing the cost of producing large sapphire sensor windows, the grinding and polishing technology Optimax has developed aids in producing spherical sapphire components to better figure quality. Through specially developed polishing slurries, the peak-to-valley figure error of spherical sapphire parts is reduced by over 80%.
In particular, Optimax has placed emphasis on refining the deterministic form correction process. By developing many of these procedures in house, changes can be implemented quickly and efficiently in order to rapidly converge on an optimal manufacturing method. Advances in metrology techniques allow for rapid identification and quantification of irregularities in freeform surfaces, while deterministic correction algorithms precisely target features on the part and drastically reduce overall correction time. Together, these improvements have yielded significant advances in the realm of freeform manufacturing. With further refinements to these and other aspects of the freeform manufacturing process, the production of increasingly radical freeform optical components is quickly becoming a reality.
Varying electro-kinetic interactions to achieve predictable removal rates and smooth surfaces on ZnS
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This course is designed to give the optical engineer or lens designer an introduction to the technologies and techniques of optical materials, fabrication and testing. This knowledge will help the optical engineer understand how the choice of optical specifications and tolerances can either lead to more cost effective optical components, or can excessively drive the price up. Topics covered include optical materials, traditional, CNC and novel optical fabrication technologies, surface testing and fabrication tolerances.
This course is designed to give the optical engineer or lens designer an introduction to the technologies and techniques of infrared optical materials, fabrication and testing. This knowledge will help the optical engineer understand which optical specifications/tolerances lead to more cost effective optical components. Topics covered include conventional and newly developed infrared optical materials, traditional, CNC and novel optical fabrication technologies, surface testing and fabrication tolerances.
This course is designed to reinforce the fundamentals of seeing, measuring and analyzing surface roughness and mid-spatial frequency (MSF) errors. After reviewing these fundamentals this course will cover how MSF errors are created, controlled and/or minimized using a variety of conventional and state of the art CNC optical manufacturing methods.
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