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Segmented mirrors are typically hexagonal and arranged in a honeycomb pattern. A segmented mirror is an array of smaller mirrors designed to act as segments of a single large curved mirror. The segments can be either spherical or asymmetric (if they are part of a larger parabolic reflector [1]). They are used as objectives for large reflecting ...
The target may be a physical object, distant from the heliostat, or a direction in space. To do this, the reflective surface of the mirror is kept perpendicular to the bisector of the angle between the directions of the Sun and the target as seen from the mirror. In almost every case, the target is stationary relative to the heliostat, so the ...
In the 1st century CE Seneca mentioned large wall mirrors; it may have been in front of one of these that Demosthenes used to practise his speeches in the 4th century BCE. The rich had silver or silver-plated mirrors. [18] Celtic mirrors in Britain were produced up until the Roman conquest. [19]
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Spin casting is a technique for constructing large parabolic mirrors by using the curved surface formed by a rotating liquid (e.g. in a rotating furnace). [1] It is distinct from the spin casting or centrifugal rubber mold casting (CRMC) technique used for casting metal or plastics.
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