Led lamp for light source
First Claim
1. An LED lamp comprising:
- a base unit;
an LED chip located in the base unit and capable of emitting light in a light emitting direction;
a shielding member located adjacent a portion of said LED chip, the shielding member forming a window that has a non-symmetrical shape when viewed from the light emitting direction, the window located adjacent the LED chip and in the light emitting direction of the LED chip such that a non-symmetrical light distribution characteristic is emitted from the lamp via the shielding member by the light emitted from the LED chip.
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Accused Products
Abstract
Whereas incandescent light bulbs and other similar light sources known in the related art emit light in all directions, LED lamps can emit light in a single direction, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. In accordance with an embodiment of the invention, an LED lamp for a light source of a headlamp can include an LED chip 2 in the vicinity of the focus of a projection means and a shielding member 7 covering a portion of the LED chip 2 in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip 2 is magnified and projected in an illumination direction by a projection lens 10 or the like constituting the projection means. Accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens 10.
69 Citations
21 Claims
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1. An LED lamp comprising:
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a base unit;
an LED chip located in the base unit and capable of emitting light in a light emitting direction;
a shielding member located adjacent a portion of said LED chip, the shielding member forming a window that has a non-symmetrical shape when viewed from the light emitting direction, the window located adjacent the LED chip and in the light emitting direction of the LED chip such that a non-symmetrical light distribution characteristic is emitted from the lamp via the shielding member by the light emitted from the LED chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An LED lamp comprising:
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a first base unit;
a first LED chip capable of emitting a first light and located in the base unit;
a first shielding member located adjacent a portion of said first LED chip, the first shielding member forming a first window having a first shape such that the first light is emitted from the lamp via the first window of the first shielding member and having a shape defined by the first shape;
a first light distribution characteristic forming structure located adjacent the first shielding member and configured to cause the first light to have a first light distribution characteristic when emitted from the lamp;
a second base unit;
a second LED chip capable of emitting a second light and located in the second base unit;
a second shielding member located adjacent a portion of said second LED chip, the second shielding member forming a second window having a second shape such that the second light is emitted from the lamp via the second window of the second shielding member and having a shape defined by the second shape; and
a second light distribution characteristic forming structure located adjacent the second shielding member and configured to cause the second light to have a second light distribution characteristic when emitted from the lamp, wherein the first light distribution characteristic is different from the second light distribution characteristic. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An LED lamp comprising:
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a base unit;
an LED chip located in the base unit;
means for emitting a non-symmetrical light distribution located adjacent the LED chip and within the base unit. - View Dependent Claims (19, 20, 21)
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Specification