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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
29-01-2014 дата публикации

Optical window

Номер: GB0002504247A
Автор: AMON MAX [US], LUTY CLIFFORD [US], AMON MAX, LUTY CLIFFORD, MAX AMON, CLIFFORD LUTY
Принадлежит:

A window, for receiving a modulated beam of light, restricts the field of view of an optical system by total internal reflection. The window rejects the entry of unwanted radiation, such as noise, and comprises first and second triangularly shaped wedges 16, 20 of optical material. An entry face 36 of the first wedge 16 is perpendicular to a base plane 21, and its rear face 38 is at an acute angle to the entry face 36. An entry face 40 of the second wedge 20 is at the same angle to the base plane 21 as the rear face 38 of the first wedge 16, and the two wedges 16, 20 are separated by an air gap. Preferably, the rear face 38 of the first wedge 16 is contoured to reject incoming radiation from below the base plane 21, with comparable contouring of the adjacent faces of the first and second wedges 16, 20 permitting the entry of skew rays, to increase the directions in which desired radiation is admitted to the optical system.

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Номер записи: 1
18-12-2013 дата публикации

Command optics

Номер: GB0002502938A
Автор: AMON MAX [US], MASSON ANDRE [FR], AMON MAX, MASSON ANDRE, MAX AMON, ANDRE MASSON
Принадлежит:

An optical system provides guidance in the form of a modulated beam for a beamrider missile. The system comprises first and second zoom type optical subsystems providing guidance to the missile when an exhaust plume from a rocket engine is difficult to penetrate. The first optical subsystem PATH D is utilized in a closed loop servo system for positioning a mirror 9 gimballed about two axes, such that it continuously tracks the missile. The second optical subsystem PATH C, along which the beam is directed, comprises negative 12 and positive 13 optical groups forming a defocusable beam expander. These groups 12, 13 are initially defocused. During flight, the negative group 12 is moved away from the positive group 13, toward the focussed position, maintaining, via mirror 9, a constant beam diameter. The positive and negative groups 12, 13 are free of spherical aberration and coma, such that the shape of the beam is not disturbed in any zoom position.

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Номер записи: 2