Led bulbs with adjustable light emitting direction
OwnerZengguang Yuan, Ching Fonginventors
Life of this patent
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Abstract
The invention provides modular, interchangeable LED light bulbs configured to have an adjustable lateral emission direction. Such light bulbs overcome the drawbacks of conventional LED light bulbs that are not suited for use certain application, such as with sideway mounted light fixtures.
Claims27
An LED light bulb comprising a rotational bulb base having a rotational axis allowing secure locking of the bulb base to a matching bulb power socket through a rotational movement, the light bulb having a hemispherical emission profile with its most intense emission lateral to the rotational axis, wherein the hemispherical emission profile is directionally adjustable 360° by rotational movement along the rotational axis without unlocking the bulb base from the bulb power socket.
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An LED light bulb comprising:
- (a) a rotational bulb base portion having a rotational axis allowing secure locking of the base portion to a matching bulb power socket through a rotational movement, wherein the base portion comprises:
- an exposed positive electrical connection site and an exposed negative electrical connection site for electrical communication with the socket;
- an inner cylinder having a first groove circularly placed around its outer surface and a first outward protruding lug;
- a matching outer cylinder having a spatially matching second groove on its inner surface and a second matching inward protruding lug;
- and
- a C-shaped circular spring ring having a cross-sectional profile such that, when the spring ring is placed in the first groove around the outer surface of the inner cylinder, the spring ring fits in the matching second groove around the inner surface of the outer cylinder,
- wherein the first outward protruding lug intercepts the second outward protruding lug when the inner cylinder is rotated relative to the outer cylinder,
- (b) a light-emitting front portion connected to the inner cylinder of the base portion, wherein the front portion comprises:
- a circuit board electrically coupled to the positive electrical connection site and the negative electrical connection site;
- an LED assembly comprising one or more LEDs and electrically coupled to the circuit board such that the one or more LEDs collectively provide a hemispherical emission profile directed laterally to the rotational axis of the base portion;
- and
- a heat sink thermally coupled to the LED assembly and being capable of facilitating heat dispersion to ambient environment,
- wherein the light-emitting front portion and the rotational bulb base portion collectively define a light bulb-like structure.
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20-23. (canceled)
An LED light bulb comprising:
- (a) a rotational bulb base portion having a rotational axis allowing secure locking of the base portion to a matching bulb power socket through a rotational movement, wherein the base portion comprises:
- an exposed positive electrical connection site and an exposed negative electrical connection site for electrical communication with the socket;
- an inner cylinder having a groove circularly placed around its outer surface, the groove having a stop block;
- an outer cylinder matching the inner cylinder, the outer cylinder comprising an opening aligned with the groove of the inner cylinder;
- an intercepting pin protruding through the opening of the outer cylinder;
- and
- an outer shell matching the outer surface of the outer cylinder;
- wherein the intercepting pin intercepts the stop block of the groove when the inner cylinder is rotated relative to the outer cylinder,
- (b) a light-emitting front portion connected to the inner cylinder of the base portion, wherein the front portion comprises:
- a circuit board electrically coupled to the positive electrical connection site and the negative electrical connection site;
- an LED assembly comprising one or more LEDs electrically coupled to the circuit board such that the one or more LEDs collectively provide a hemispherical emission profile directed laterally to the rotational axis of the base portion;
- and
- a heat sink thermally coupled to the LED assembly and being capable of facilitating heat dispersion to ambient environment,
- wherein the light-emitting front portion and the rotational bulb base portion collectively define a light bulb-like structure.
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Dependencies are inferred from the claim text.