| 摘要 |
<p>The stage lighting system consists of a housing and one light source, with at least one condenser lens and a projection system (13). The axial distance, between the projection system (13) and the light housing (11) is adjustable by moving the lenses of the projection system. The projection lenses (26, 27) are axially movable relative to each other, and are mechanically couple to each other, and have a common adjustment mechanism. There is a part-spherical reflector (21) and the condenser is formed by a non-spherical lens (22) and a plano-convex lens, mounted on a rail (25). Tension cords are attached to the lens carriages for distance adjustment by a rotary knob attached to a pinion and ratchet.</p> |
