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The field of view of the pipes

04.03.2021

The field of view of the visual pipe is determined by the angle of 2 and the interethnic main rays included in the lens, when the pipe is focused on infinity. The space of objects in the form of a cone formed by the extreme main rays will be observed through the pipe. Resolution of the visual pipe. Resolution or permissive strength is the ability of the optical system to depict two points separately. The resolution is characterized by the smallest angle G, at which these points are visible separately. In the first case, the world is a table installed at a distance L from the studied visual pipe. In the second case, it is a well -illuminated transparenum installed in the rear focal plane of the collimator lens. The testing pipe tested is installed in front of the collimator lens so that its visual axis is “combined” with the continuation of the vizier axis of the collimator. Often an auxiliary pipe with a four -time increase is installed behind the visual pipe. Considering the world through the visual pipe, they find that group,. the strokes of which are still distinctly different. The angle under which the strokes of this group are visible is the permitting force of the tested pipe tested. For the convenience of work, each group of strokes instead of the number is indicated by the value of the permitting force in the seconds of the arc corresponding to this group.

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