The light fixture includes a frame, an optically transmissive panel assembly, a set of light emitting diodes (LEDs), and driving circuitry. The frame has a frame length measured along a length axis and a frame width measured along a width axis, wherein the frame length is greater than the frame widt
The light fixture includes a frame, an optically transmissive panel assembly, a set of light emitting diodes (LEDs), and driving circuitry. The frame has a frame length measured along a length axis and a frame width measured along a width axis, wherein the frame length is greater than the frame width. The optically transmissive panel assembly receives light from the set of light emitting diodes (LEDs) and emits light from an emission area in a patterned luminous intensity, using patterning optics adjacent a light guide plate. The driving circuitry is disposed within the frame and is operatively coupled to the set of LEDs and to a power supply external to the light fixture. The driving circuitry may include a first circuitry segment disposed within a first edge channel of the frame, and a second circuitry segment disposed within a second edge channel of the frame.
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1. A light fixture, comprising: a) a frame having a frame length measured along a length axis and a frame width measured along a width axis, wherein the frame length is greater than the frame width, wherein the frame defines a first channel extending along the length axis at a first edge of the fram
1. A light fixture, comprising: a) a frame having a frame length measured along a length axis and a frame width measured along a width axis, wherein the frame length is greater than the frame width, wherein the frame defines a first channel extending along the length axis at a first edge of the frame, and a second channel extending along the length axis at a second edge of the frame opposite to the first edge of the frame;(b) an array of light emitting diodes (LEDs) disposed within the first channel extending along the length axis at the first edge of the frame;(c) an optically transmissive panel assembly disposed within the frame, wherein the optically transmissive panel assembly light receives light from the array of light emitting diodes (LEDs) at an edge of a light guide plate of the optically transmissive panel assembly adjacent the first channel;d) driving circuitry disposed within the second channel extending along the length axis at the second edge of the frame and operatively coupled to the set of LEDs, the driving circuitry operatively coupled to an AC power supply external to the light fixture to power the set of light emitting diodes (LEDs);wherein the optically transmissive panel assembly emits light from a patterning optics film adjacent a surface of the light guide plate at an emission area of the optically transmissive panel assembly in an asymmetric light distribution, and wherein the asymmetric light distribution directs the light with maximum luminous intensity in a transverse direction toward one of a first side of the light fixture off the first edge of the frame or a second side of the light fixture off the second edge of the frame. 2. The light fixture of claim 1 wherein the patterning optics film comprises a micro-prism film. 3. The light fixture of claim 1, wherein the patterning optics film comprises a micro-lens diffuser film. 4. The light fixture of claim 1, wherein the driving circuitry has a length and a width, wherein a length-to-width ratio thereof is at least 10 to 1. 5. The light fixture of claim 4, wherein the driving circuitry comprises a printed circuit board, with components arrayed serially along the length of the printed circuit board. 6. The light fixture of claim 1, for illuminating an elongate surface, wherein the optically transmissive panel assembly has a diffusion angle for light emitted in a longitudinal direction, that is different than a diffusion angle for light emitted in the transverse direction. 7. The light fixture of claim 1, wherein the optically transmissive panel assembly emits the light in the asymmetric light distribution with the maximum luminous intensity light aimed at a surface offset from a normal to the light fixture in the transverse direction. 8. The light fixture of claim 1, wherein the light fixture is located adjacent an edge of an object, and the optically transmissive panel assembly emits light with maximum luminous intensity in the transverse direction toward a location in front of the object. 9. A light fixture, comprising: a) a frame including a first edge wall and a second edge wall, wherein a first edge channel is defined within said frame adjacent said first edge wall at a first side of the frame and a second edge channel is defined within said frame adjacent said second edge wall at a second side of the frame, wherein the first side of the frame and the second side of the frame form a corner of the frame;b) a set of light emitting diodes (LEDs) disposed within the frame;c) driving circuitry comprising a first printed circuit board disposed within said first edge channel, said first printed circuit board operatively coupled to an AC power supply external to the light fixture and configured to convert an AC input into a DC output; a second printed circuit board disposed within said second edge channel and operatively coupled to said set of light emitting diodes (LEDs) to power the LEDs; and an electrical connector between the first printed circuit board and the second printed circuit board at the corner of the frame. 10. The light fixture of claim 9, wherein the frame is substantially rectangular in form, the first edge channel extends along a length axis, and the second edge channel extends along a width axis. 11. The light fixture of claim 9, wherein the frame has a thickness of 18 mm or less. 12. The light fixture of claim 9, wherein the first printed circuit board disposed within the first edge channel has a length and a width, wherein a length-to-width ratio thereof is at least 10 to 1. 13. The light fixture of claim 12, wherein the first printed circuit board is oriented vertically within the first edge channel. 14. The light fixture of claim 13, wherein the first printed circuit board is mounted to the first edge wall of the frame with a heat dissipating layer between the first printed circuit board and first edge wall. 15. The light fixture of claim 9, wherein each of the first printed circuit board and the second printed circuit board has components arrayed serially along a length of the respective printed circuit board. 16. The light fixture of claim 9, further comprising an optically transmissive panel assembly disposed within the frame, said optically transmissive panel assembly comprising a light guide plate, wherein the set of light emitting diodes (LEDs) are disposed adjacent an edge surface of the light guide plate. 17. The light fixture of claim 9, wherein the first printed circuit board includes an AC/DC transformer, and the second printed circuit board comprises a DC power supply with one or more control function. 18. The light fixture of claim 17, wherein the one or more control function of the second printed circuit board include one or more of dimming, and driving LEDs with multiple correlated color temperature (CCT) values. 19. The light fixture of claim 9, wherein the set of light emitting diodes (LEDs) are disposed within the frame at a third edge of the frame.
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이 특허에 인용된 특허 (50)
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