| 摘要 |
<p>A new mounting arrangement is provided for an inner lamp within a sealed beam envelope. A ceramic holder is provided in which one or more of the outer surfaces of the holder provide reference surfaces for mounting the inner lamp in a reflector. The lamp is mounted in the holder using a suitable adhesive, such as basing cement. The lamp is aligned in the holder with respect to its filament, enabling use of most inner lamps produced that have filaments which are not precisely aligned with their envelopes, thereby increasing the yield of inner lamps. manufacture is simplified since the inner lamp lead wires need only match the current requirements of the inner lamp and adequately match the coefficient of thermal expansion of the inner lamp glass. An improved sealed beam lamp results, in one embodiment, since higher efficiency halogen cycle lamps can now be utilized, and, in another embodiment, since construction is simplified by using the holder as a filament shield.</p> |
