FLAT ILLUMINATION DEVICE HAVING EDGE LIGHTING
First Claim
Patent Images
1. An edge-lit flat panel unit comprising:
- a planar light guide comprising at least one of a piece of glass and an optical plastic;
an LED card installed at an end surface of the planar light guide;
an LED power supply; and
multiple extruded profiles that are connected together with connection elements to form a frame, the extruded profiles each defining a first open cavity that holds the planar light guide, and at least one of the extruded profiles defining a second open cavity housing the LED card such that the LED card is configured to provide light to the planar light guide through the end surface of the planar light guide,wherein the extruded profiles and the connections elements comprise an insulating plastic;
wherein at least one of the extruded profiles defines a closed cavity that houses at least one of the LED power supply and an LED control unit,wherein the LED card has a U-shaped contour comprising a middle section and lateral sections,wherein the lateral sections are installed along walls of the second cavity to provide reinforcement and heat exchange to the at least one of the extruded profiles that defines the second open cavity and that houses the LED card,wherein the lateral sections of the LED card comprise a light reflective material, andwherein the LED card comprises a limiter that is configured to space the planar light guide not closer than 0.1 mm of an LED of the LED card.
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Abstract
The solution relates to lighting engineering, namely to thin illumination devices having a lateral arrangement of LEDs, which are intended for use as immovably fixed ceiling and wall lights. The technical result of the claimed solution is increased structural strength and improved compactness on account of a monoblock design. The device comprises a housing formed by successively connected plastic profiles, a flat light guide, a U-shaped metallic LED board which is mounted in a cavity of a profile having an open cavity, and a power source arranged in a profile having a closed cavity.
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Citations
5 Claims
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1. An edge-lit flat panel unit comprising:
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a planar light guide comprising at least one of a piece of glass and an optical plastic; an LED card installed at an end surface of the planar light guide; an LED power supply; and multiple extruded profiles that are connected together with connection elements to form a frame, the extruded profiles each defining a first open cavity that holds the planar light guide, and at least one of the extruded profiles defining a second open cavity housing the LED card such that the LED card is configured to provide light to the planar light guide through the end surface of the planar light guide, wherein the extruded profiles and the connections elements comprise an insulating plastic; wherein at least one of the extruded profiles defines a closed cavity that houses at least one of the LED power supply and an LED control unit, wherein the LED card has a U-shaped contour comprising a middle section and lateral sections, wherein the lateral sections are installed along walls of the second cavity to provide reinforcement and heat exchange to the at least one of the extruded profiles that defines the second open cavity and that houses the LED card, wherein the lateral sections of the LED card comprise a light reflective material, and wherein the LED card comprises a limiter that is configured to space the planar light guide not closer than 0.1 mm of an LED of the LED card. - View Dependent Claims (2, 3, 4, 5)
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Specification