| 摘要 |
PURPOSE: An incandescent lamp for use of reflector mirror is provided to reduce stresses by using an O-shaped extended plate spring for the incandescent lamp. CONSTITUTION: An incandescent lamp comprises an envelope(17) having a vertical axis, a filament, and an electrical lead-out wire(11); a support portion(15) for accommodating the envelope; a sleeve type optical disk(7) connected to the support portion, and which has a cut-out portion(41); a plastic base member(1) for fixing the sleeve type optical disk, and which includes a terminal; and a plate spring(25) shapes as a near O, and which is positioned in a restricted space by the optical disk. The plate spring includes a protrusion(37) protruded from the part of the O-shaped plate spring, and two ends forming a tap(43) protruded from the other part of the O-shaped plate spring. The protrusion of the plate spring is pressed into the optical disk from the tap such that the protrusion is extended through the cut-out portion of the optical disk. |
