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; and
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,wherein a surface of the shielding member opposing the LED chip is inclined for reflecting light in the direction of a non-shielded portion of 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 presently disclosed subject matter, an LED lamp for a light source of a headlamp can include an LED chip in the vicinity of the focus of a projection means and a shielding member covering a portion of the LED chip in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip is magnified and projected in an illumination direction by a projection lens 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.
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Citations
18 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; and 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, wherein a surface of the shielding member opposing the LED chip is inclined for reflecting light in the direction of a non-shielded portion of the LED chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. 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 the 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; an integral one piece lead extending into and from the base unit; and a bonding wire directly connected to the lead and to the LED chip. - View Dependent Claims (18)
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Specification