LED light bulb having an LED light engine with illuminated curved surfaces
First Claim
1. An LED light bulb encompassed by a first illumination zone and a second illumination zone different from said first illumination zone, comprising:
- a light transmissive shell defining an inner space;
a thermally conductive support block comprising a first projecting surface and a second projecting surface away from said first projecting surface;
an LED light engine arranged on said support block, comprising a first LED module attached to said first projecting surface of the support block and a second LED module attached to said second projecting surface of the support block;
wherein said first LED module comprises a first illuminated curved surface facing toward said first illumination zone, curved about a first center axis and extending along said first center axis;
wherein said second LED module comprises a second illuminated curved surface facing toward said second illumination zone, curved about a second center axis and extending along said second center axis; and
wherein said first center axis of the first illuminated curved surface is arranged at an angle with said second center axis of the second illuminated curved surface; and
a base attached to the shell along a longitudinal axis of the light bulb and configured to receive an internal circuitry electrically connected to the LED light engine.
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Abstract
The present invention relates to an LED light bulb utilizing LED light sheets with illuminated curved surfaces and can be used as a replacement bulb. The LED light bulb comprises an LED light engine having first and second LED modules with first and second illuminated curved surfaces facing toward different illumination zones I1, I2 respectively and attached to a thermally conducive support block with an increased curved surface area for heat dissipation. Said first and second illuminated curved surfaces are curved about first and second axes A, B respectively and are arranged to be offset from each other with said axes A and B substantially perpendicular to each other such that an improved illumination with direct lights shone to at least six different sides of the light bulb and subsequently a substantially spherical illumination of dispersed lights may be obtained along with an enhanced cooling of the light bulb.
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Citations
30 Claims
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1. An LED light bulb encompassed by a first illumination zone and a second illumination zone different from said first illumination zone, comprising:
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a light transmissive shell defining an inner space; a thermally conductive support block comprising a first projecting surface and a second projecting surface away from said first projecting surface; an LED light engine arranged on said support block, comprising a first LED module attached to said first projecting surface of the support block and a second LED module attached to said second projecting surface of the support block;
wherein said first LED module comprises a first illuminated curved surface facing toward said first illumination zone, curved about a first center axis and extending along said first center axis;
wherein said second LED module comprises a second illuminated curved surface facing toward said second illumination zone, curved about a second center axis and extending along said second center axis; and
wherein said first center axis of the first illuminated curved surface is arranged at an angle with said second center axis of the second illuminated curved surface; anda base attached to the shell along a longitudinal axis of the light bulb and configured to receive an internal circuitry electrically connected to the LED light engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An LED light bulb encompassed by a first illumination zone and a second illumination zone different from said first illumination zone, comprising:
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a light transmissive shell defining an inner space enclosed by a first envelope and a second envelope; a thermally conductive support block comprising a first projecting surface and a second projecting surface;
wherein said first projecting surface includes a first outwardly-projecting convex profile toward said first envelope of the shell; and
wherein said second convex surface includes a second outwardly-projecting convex profile toward said second envelope of the shell;an LED light engine attached to said support block, comprising a first LED module attached to said first projecting surface of the support block and a second LED module attached to said second projecting surface of the support block;
wherein said first LED module comprises a first illuminated curved surface facing toward said first illumination zone, curved about a first center axis and extending along said first center axis;
wherein said second LED module comprises a second illuminated curved surface facing toward said second illumination zone, curved about a second center axis and extending along said second center axis; and
wherein said first center axis of the first illuminated curved surface is arranged at an angle substantially perpendicular to said second center axis of the second illuminated curved surface; anda base attached to the shell along a longitudinal axis of the light bulb and configured to receive an internal circuitry electrically connected to the LED light engine. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An LED light bulb encompassed by a first illumination zone and a second illumination zone different from said first illumination zone, comprising:
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a light transmissive shell defining an inner space; a thermally conductive support block comprising a first projecting surface, a second projecting surface and a central stem extending away from said first and second projecting surfaces along a longitude axis of the light bulb;
wherein said first projecting surface includes a first outwardly-projecting convex profile and said second projecting surface includes a second outwardly-projecting convex profile away from said first outwardly-projecting convex profile of the first project surface;an LED light engine attached to said support block, comprising a first LED module attached to said first projecting surface of the support block and a second LED module attached to said second projecting surface of the support block;
wherein said first LED module comprises a first illuminated curved surface facing toward said first illumination zone and said second LED module comprises a second illuminated curved surface facing toward said second illumination zone;
wherein said first illuminated curved surface of the first LED module is of a first half-cylindrical shape curved about a first center axis with a first radius and extending along said first center axis, and said second illuminated curved surface of the second LED module is of a second half-cylindrical shape curved about a second center axis with a second radius and extending along said second center axis;
wherein said first center axis of the first illuminated curved surface of the first LED module is arranged at an angle substantially perpendicular to said second center axis of the second illuminated curved surface of the second LED module; anda base comprising a supporting stand secured to said central stem of the support block, configured to receive an internal circuitry therein and attached to said shell along said longitudinal axis of the light bulb. - View Dependent Claims (27, 28, 29, 30)
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Specification