| 摘要 |
A sealed beam headlamp has a convex front transparent lens integrally joined peripherally to a parabolic reflector. An internal centered incandescent filament is carried by the reflector. An anti-fog mask is applied to the lens at either side or is embedded in the lens. The mask is a black, opaque member. It has arms crossed at a right angle. The arms extend across vertical and horizontal of the lens dividing it into four clear quadrants. The mask can be made of flexible, springy material removably held on the headlamp by flexible tabs at ends of the arms. The arms can be pivotally joined to each other.
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