Lighting systems having multiple edge-lit lightguide panels
First Claim
1. A lighting system, comprising:
- an edge-lit lightguide panel being extended along a longitudinal axis of the lighting system, the edge-lit lightguide panel having a pair of mutually-opposing panel surfaces and having a peripheral edge being extended along and spaced transversely away from the longitudinal axis, wherein one of the pair of panel surfaces includes a first light output interface;
a visible-light source including a plurality of semiconductor light-emitting devices, the visible-light source being configured for generating visible-light emissions from the plurality of semiconductor light-emitting devices and being located along the peripheral edge for directing the visible-light emissions into the edge-lit lightguide panel;
another edge-lit lightguide panel being extended along the longitudinal axis, the another edge-lit lightguide panel having another pair of mutually-opposing panel surfaces and having another peripheral edge being extended along and spaced transversely away from the longitudinal axis, wherein one of the another pair of panel surfaces includes a second light output interface;
another visible-light source including another plurality of semiconductor light-emitting devices, the another visible-light source being configured for generating additional visible-light emissions from the another plurality of semiconductor light-emitting devices and being located along the another peripheral edge for directing the additional visible-light emissions into the another edge-lit lightguide panel;
a total internal reflection lens, having a central light-emission axis being transverse to the longitudinal axis, the total internal reflection lens including a third light output interface being located between the first and second light output interfaces, the third light output interface being spaced apart from a central light input interface by a total internal reflection side surface, the total internal reflection side surface being extended along the central light-emission axis, the total internal reflection lens having a further visible-light source including a further plurality of semiconductor light-emitting devices, the further visible-light source being configured for generating further visible-light emissions from the further plurality of semiconductor light-emitting devices and being located at the central light input interface for directing the further visible-light emissions through the total internal reflection lens to the third light output interface;
wherein the first, second and third light output interfaces cooperatively define an emission aperture for forming combined visible-light emissions including the visible-light emissions, the additional visible-light emissions, and the further visible-light emissions; and
wherein the emission aperture forms a shielding zone for redirecting some of the combined visible-light emissions.
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Accused Products
Abstract
Lighting system including: two edge-lit lightguide panels; three visible-light sources; and total internal reflection lens or bowl reflector. Each edge-lit lightguide panel is extended along longitudinal axis, has pair of mutually-opposing panel surfaces, and has peripheral edge extended along and spaced transversely away from longitudinal axis. Panel surfaces include first and second light output interfaces. Two visible-light sources located along panel peripheral edges for directing light into panels. Lens or reflector has reflective side surface and central axis transverse to longitudinal axis for directing light to third light output interface located between the others. Output interfaces cooperatively define emission aperture forming shielding zone for redirecting combined light emissions.
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Citations
111 Claims
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1. A lighting system, comprising:
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an edge-lit lightguide panel being extended along a longitudinal axis of the lighting system, the edge-lit lightguide panel having a pair of mutually-opposing panel surfaces and having a peripheral edge being extended along and spaced transversely away from the longitudinal axis, wherein one of the pair of panel surfaces includes a first light output interface; a visible-light source including a plurality of semiconductor light-emitting devices, the visible-light source being configured for generating visible-light emissions from the plurality of semiconductor light-emitting devices and being located along the peripheral edge for directing the visible-light emissions into the edge-lit lightguide panel; another edge-lit lightguide panel being extended along the longitudinal axis, the another edge-lit lightguide panel having another pair of mutually-opposing panel surfaces and having another peripheral edge being extended along and spaced transversely away from the longitudinal axis, wherein one of the another pair of panel surfaces includes a second light output interface; another visible-light source including another plurality of semiconductor light-emitting devices, the another visible-light source being configured for generating additional visible-light emissions from the another plurality of semiconductor light-emitting devices and being located along the another peripheral edge for directing the additional visible-light emissions into the another edge-lit lightguide panel; a total internal reflection lens, having a central light-emission axis being transverse to the longitudinal axis, the total internal reflection lens including a third light output interface being located between the first and second light output interfaces, the third light output interface being spaced apart from a central light input interface by a total internal reflection side surface, the total internal reflection side surface being extended along the central light-emission axis, the total internal reflection lens having a further visible-light source including a further plurality of semiconductor light-emitting devices, the further visible-light source being configured for generating further visible-light emissions from the further plurality of semiconductor light-emitting devices and being located at the central light input interface for directing the further visible-light emissions through the total internal reflection lens to the third light output interface; wherein the first, second and third light output interfaces cooperatively define an emission aperture for forming combined visible-light emissions including the visible-light emissions, the additional visible-light emissions, and the further visible-light emissions; and wherein the emission aperture forms a shielding zone for redirecting some of the combined visible-light emissions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 35, 36, 37, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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- 31. The lighting system of 30, wherein the total internal reflection lens has a field angle being within a range of between about 60 degrees and about 40 degrees.
- 38. The lighting system of 35, wherein the total internal reflection lens has a field angle being within a range of between about 30 degrees and about 20 degrees.
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55. A lighting system, comprising:
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an edge-lit lightguide panel being extended along a longitudinal axis of the lighting system, the edge-lit lightguide panel having a pair of mutually-opposing panel surfaces and having a peripheral edge being extended along and spaced transversely away from the longitudinal axis, wherein one of the pair of panel surfaces includes a first light output interface; a visible-light source including a plurality of semiconductor light-emitting devices, the visible-light source being configured for generating visible-light emissions from the plurality of semiconductor light-emitting devices and being located along the peripheral edge for directing the visible-light emissions into the edge-lit lightguide panel; another edge-lit lightguide panel being extended along the longitudinal axis, the another edge-lit lightguide panel having another pair of mutually-opposing panel surfaces and having another peripheral edge being extended along and spaced transversely away from the longitudinal axis, wherein one of the another pair of panel surfaces includes a second light output interface; another visible-light source including another plurality of semiconductor light-emitting devices, the another visible-light source being configured for generating additional visible-light emissions from the another plurality of semiconductor light-emitting devices and being located along the another peripheral edge for directing the additional visible-light emissions into the another edge-lit lightguide panel; a bowl reflector having a central light-emission axis being transverse to the longitudinal axis, the bowl reflector including a third light output interface being located between the first and second light output interfaces, the third light output interface being spaced apart from a central light input interface by a visible-light-reflective side surface, the visible-light-reflective side surface being extended along the central light-emission axis and defining a portion of a cavity, the bowl reflector having a further visible-light source including a further plurality of semiconductor light-emitting devices, the further visible-light source being configured for generating further visible-light emissions from the further plurality of semiconductor light-emitting devices and being located at the central light input interface for directing the further visible-light emissions through the cavity to the third light output interface; wherein the first, second and third light output interfaces cooperatively define an emission aperture for forming combined visible-light emissions including the visible-light emissions, the additional visible-light emissions, and the further visible-light emissions; and wherein the emission aperture forms a shielding zone for redirecting some of the combined visible-light emissions. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 92, 93, 94, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111)
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- 88. The lighting system of 87, wherein the bowl reflector has a field angle being within a range of between about 60 degrees and about 40 degrees.
- 95. The lighting system of 94, wherein the bowl reflector has a field angle being within a range of between about 30 degrees and about 20 degrees.
Specification