Define spherical geometry. spherical geometry synonyms, spherical geometry pronunciation, spherical geometry translation, English dictionary definition of spherical geometry. n. The geometry of circles, angles, and figures on the surface of a sphere. Ame
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An example system that is capable of measuring the Large Synoptic Survey Telescope secondary mirror is presented along with a sensitivity analysis.doi:10.1117/12.829053M. DubinP. SuJ. BurgeFizeau interferometer with spherical reference andCGH correction for measuring large convexaspheres. M.B.Dubin,P...
Calabi–Yau (CY, for short) triangulated categories appear in many branches of mathematics and physics, such as conformal field theory and string theory in theoretical physics, homological mirror symmetry in algebraic and symplectic geometry, and cluster-tilting theory in representation theory. Much wor...
and without a fold mirror. As in the embodiment of FIG. 1b, the focussing lens 45c of FIG. 1a focusses light from the second reflector portion 17 to the circular homogenizer rod 28c. The focussing lens 45c may be used instead of, or in addition to, any of the fold mirrors 24, 24a...
Over the years, new metrology approaches have been developed to keep pace with the ever changing definition of "large". The latest class of large secondary mirrors requires a new approach that is practical, scalable and can produce low uncertainty measurements. This paper presents a new ...
The calculated backscattering flux changes with distance d is shown in Figure 7a where the mirror has tilt angle of 5°. For Monte-Carlo estimation, 10,000 random pairs of patches are chosen and the backscattered flux is plotted the blue curve and the gray curve is the corresponding standard...
Depending on the construction of the omnidirectional camera, it is possible to obtain 3 types of sensors: dioptric, which uses a combination of shaped lenses (e.g., fisheye lenses); catadioptric, which combines a standard camera with a shaped (parabolic, hyperbolic, or elliptical) mirror; and...