Patent ID: 9676320
Date: 2017-06-13
CPC Classifications: B60Q,F21S

Claim:
1. A vehicle lamp comprising: a housing for mounting to a vehicle and defining an outward opening; and a transparent lens attached to the outward opening of the housing to define a lamp chamber therebetween, the lens having the lens having an exposed portion and a condensation-trap area, wherein the condensation-trap area is formed below the exposed portion on an inner surface of the lens and located in a portion of the lamp chamber that is concealed, the condensation-trap area having a specific-surface-area-per-cross-sectional area of the inner surface that is larger than the specific-surface-area-per-cross-sectional area of the exposed portion, wherein the inner surface comprises at least one of a prismatic contour pattern and a triangle pattern forming a plurality of cube portions, wherein light from a light source propagates outward through the exposed portion of the lens, but visible light is blocked from propagating into the condensation-trap area.