28-01-2021 дата публикации
Номер: US20210025566A1
Принадлежит:
Improvements are disclosed to lighting fixtures adjusted in beam direction during use, both manually and remotely by an operator. The head of the manual fixture is mounted rotatably between two standards, which are attached to a base, such that the attachments can be moved vertically along the standards to adjust the distance between the head and base. The remote fixture uses a two-axis mirror for beam direction and at least one additional axis of adjustment. Improvements to power and data distribution and pre-rig truss are disclosed. 1. (canceled)2. A lighting fixture , said fixture comprising: 'said housing containing at least a light source producing light and a vari-focal optical system forming said light into a directional beam,', 'a housing,'} a first portion resting on said surface,', 'a second portion above said first portion,', 'a coupling between said first portion and said second portion for rotation of said second portion relative to said first portion around a vertical axis,', 'a first standard, attached to said second portion, elongated upwardly from said second portion, and parallel to said vertical axis,', 'a second standard, attached to said second portion, elongated upwardly from said second portion, and parallel to said vertical axis,', 'an attachment of said housing to said first standard, said attachment including first tilt pivot for rotation of said housing relative to said first standard, said first tilt pivot having a rotational axis, said axis being horizontal,', 'an attachment of said housing to said second standard, said attachment including a second tilt pivot for rotation of said housing relative to said second standard, said second tilt pivot having a rotational axis,', 'said axes of said first and said second tilt pivots being aligned,', 'said housing being disposed between said first and said second standards,', 'said stand adapted to permit changing the vertical distance between said tilt pivots and said coupling while said housing ...
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