نتایج جستجو برای: optical instrument
تعداد نتایج: 346252 فیلتر نتایج به سال:
We studied instrument myopia as an overall effect consisting of interactions among the observer's accommodation and resolution during instrument viewing and the manner in which the instrument is focused. Previous investigations of instrument myopia generally have been limited to only one of these variables. Our results are consistent with the dark-focus-bias theory of accommodation, which holds...
This paper focuses on the application of rapid prototyping techniques using additive manufacturing in combination with parametric design to create low-cost, yet accurate and reliable instruments. The methodology followed makes it possible to make instruments with a degree of customization until now available only to a narrow audience, helping democratize science. The proposal discusses a holist...
Our overall, long-term goal is to significantly advance our understanding of the light scattering properties of marine particles as well as their general optical properties. Our goal is to study particle optical properties using a unique set of new optical instruments that we have developed on previous ONR funded projects. Observational studies will be conducted at sea in various coastal waters...
Many electronic instruments as computer chips, video recorders, optical instruments lens need a perfect finish. If the surfaces are too rough, the performance of such instruments can be very faulty; so that the finishing of such pieces needs the measuring of the surface texture. Toward 1980 it is relied on some methods of surface analysis, among them there is the interferometric technique, whic...
چکیده ندارد.
Multi-beam interference (MBI) provides the ability to form a wide range of sub-micron periodic optical-intensity distributions with applications to a variety of areas, including photonic crystals (PCs), nanoelectronics, biomedical structures, optical trapping, metamaterials, and numerous subwavelength structures. Recently, pattern-integrated interference lithography (PIIL) was presented as a ne...
Our overall, long-term goal is to significantly advance our understanding of the light scattering properties of marine particles as well as their general optical properties. Our goal is to study particle optical properties using a unique set of new optical instruments that we have developed on previous ONR funded projects. Observational studies will be conducted at sea in various coastal waters...
An open-source database containing metrology data for X-ray mirrors is presented. It makes available metrology data (mirror heights and slopes profiles) that can be used with simulation tools for calculating the effects of optical surface errors in the performances of an optical instrument, such as a synchrotron beamline. A typical case is the degradation of the intensity profile at the focal p...
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