Altman Stage Lighting Company

Other

Charles W Altman

Rotatable detachable head for weather resistant spot light

The present invention provides a spotlight adjusting system for controlling the beam of a spotlight. A ellipsoidal reflector-lamp assembly is movable to a plurality of positions relative to the iris. The diaphragm of the iris is independently adjustable to a plurality of positions so that the light being reflected from the focal area of the reflector assembly can be controlled between passing the full beam received at the iris to a portion of the beam received there. The rear lens is adjustable relative to the iris and the front lens. The system provides mounting structures for both a long throw and a short throw front lens so that the system can be selectively mounted with either a removable long or short focal front lens.

Spotlight and adjusting system

Spotlight

An axial spotlight system, including an axially mounted arc lamp in an ellipsoidal reflector. The usually associated thermal problem at the forward terminal of the lamp is eliminated by a metal mounting frame which connects the terminal to the reflector and thereby performs as a heat sink for the lamp to avoid deterioration of the forward terminal. To further limit problems at the forward terminal of the lamp a lead wire is permanently affixed thereto and accurate focusing of the lamp is accomplished by means of the metal mounting frame holding the front of the lamp and an adjustment assembly holding the back of the lamp.

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Yonkers, NY, United States of America

Charles W Altman