Car number plate lamp
First Claim
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1. A car number plate lamp comprising:
- a lamp body, a light source provided in said lamp body, a reflector provided in said lamp body, and a lens provided across an opening portion of said lamp body, said reflector being three-dimensionally curved so that the entire surface of said reflector viewed in the longitudinal direction thereof curves circular-arcuately about said light source, and the surface perpendicular to said longitudinal direction forms a paraboloid with said light source at a focal point thereof, concentric steps for refracting light from said light source to a number plate being formed in an inner surface of said lens.
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Abstract
A car number plate lamp having an improved illuminating efficiency and more uniform illuminating intensity. A light source and lens are provided in a lamp body, and a lens is mounted across an opening in the lamp body. The reflector is three-dimensionally curved in such a manner that the entire surface of the reflector viewed in the longitudinal direction curves circular-arcuately about the light source. The surface perpendicular to the longitudinal direction forms a paraboloid with the light source at the focal point. Concentric steps for refracting the light from the light source to the number plate are formed in the inner surface of the lens.
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Citations
6 Claims
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1. A car number plate lamp comprising:
a lamp body, a light source provided in said lamp body, a reflector provided in said lamp body, and a lens provided across an opening portion of said lamp body, said reflector being three-dimensionally curved so that the entire surface of said reflector viewed in the longitudinal direction thereof curves circular-arcuately about said light source, and the surface perpendicular to said longitudinal direction forms a paraboloid with said light source at a focal point thereof, concentric steps for refracting light from said light source to a number plate being formed in an inner surface of said lens. - View Dependent Claims (2, 3, 4, 5, 6)
Specification