LED device for wide beam generation and method of making the same
First Claim
1. A lighting system comprising:
- a carrier that comprises an upper surface;
a light emitting diode source disposed at the carrier below the upper surface;
an optic comprising an exterior surface and an interior surface,wherein the interior surface defines a cavity facing the light emitting diode source,wherein the interior surface is configured to direct past the upper surface light produced by the light emitting diode source that would otherwise be intercepted and lost or unavailable; and
an air gap disposed between the light emitting diode source and the interior surface.
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Accused Products
Abstract
A predetermined illuminated surface pattern is generated from a predetermined energy distribution pattern of an LED light source within an LED package having a light transmitting dome. An estimated optical transfer function of a lens shape of an optic is defined by the shape of an exterior and inner surface which envelopes at least in part the light transmitting dome of the LED package. An energy distribution pattern is obtained by combination of the estimated optical transfer function and the predetermined energy distribution pattern of the light source. A projection of the energy distribution pattern onto the illuminated surface is determined. The projection is compared to the predetermined illuminated surface pattern. The estimated optical transfer function is illuminated surface pattern.
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Citations
20 Claims
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1. A lighting system comprising:
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a carrier that comprises an upper surface; a light emitting diode source disposed at the carrier below the upper surface; an optic comprising an exterior surface and an interior surface, wherein the interior surface defines a cavity facing the light emitting diode source, wherein the interior surface is configured to direct past the upper surface light produced by the light emitting diode source that would otherwise be intercepted and lost or unavailable; and an air gap disposed between the light emitting diode source and the interior surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A lighting system comprising:
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an LED source disposed in a well so as to produce light rays oriented for impingement on the well; and an optic comprising a refracting outer surface and an inner surface enveloping at least in part the LED source, wherein a zone of contrasting index of refraction is disposed at the inner surface, and wherein the inner surface comprises a region that is operative to redirect said light rays outside the well without said impingement on the well. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A lighting system comprising:
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a light emitting diode source; a piece of material comprising a hole having an interior surface extending circumferentially about the light emitting diode source; and an optic comprising an exterior surface and an interior surface that forms a cavity oriented towards the light emitting diode to receive light from the light emitting diode, the interior surface comprising a region that is operable to redirect out of the hole light produced by the light emitting diode source that would otherwise be intercepted by the interior surface but for said redirection. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification