Illumination – Miscellaneous attachments and fittings
Patent
1980-05-15
1982-06-22
Jordan, Charles T.
Illumination
Miscellaneous attachments and fittings
F21S 1700, F21P 500
Patent
active
043365817
ABSTRACT:
A device primarily intended for positioning a follow spotlight in a theatrical setting to allow a performer or an object to be "picked up" on cue, the invention is mounted on the movable light barrel of a follow spotlight and thus is moved exactly with the spot as the operator aims the beam of light. The present sighting device includes a sighting arm having sight reticles disposed at each end, the sight reticles being held on the arm by retentive couplings which allow 360.degree. rotation of the reticles about the arm. The medial portion of the sighting arm is mounted to the distal end of an L-shaped standard by a cruciform coupling which allows both rotation of the arm about the mounting locus and linear displacement of the arm relative to said coupling. The anterior end of the standard is removably attached to the follow spotlight by a preferably magnetic mount, the standard being capable of rotation about its longitudinal axis. The sighting device can thus be rapidly located on the body of a follow spotlight and the standard, sighting arm, and sight reticles adjusted to align respective apertures of the reticles with the beam of light, the couplings allowing free movement of the several structural elements during adjustment and further acting to positively maintain alignment of the elements once adjusted.
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Darnell Kenneth E.
Jordan Charles T.
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