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Coded warning system for lighting units

A technology of warning system and lighting unit, which is applied in the direction of lighting devices, electrical components, light sources, etc., and can solve problems such as fan degradation

Active Publication Date: 2016-01-13
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fan performance may degrade due to dust buildup and may only require removal and cleaning, or other maintenance, rather than replacement

Method used

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  • Coded warning system for lighting units
  • Coded warning system for lighting units
  • Coded warning system for lighting units

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0113] Image 6 A block diagram of an exemplary lighting unit operatively associated with the coded warning system of the present invention is shown. The lighting unit includes arrays 20, 30, 40 each having a plurality of LED-based light sources in thermal contact with one or more heat sinks or thermal management systems (not shown). In one embodiment, the red light sources 22, green light sources 32, and blue light sources 42 in the arrays 20, 30, 40 may be mounted on separate heat sinks. The combination of colored light generated by each of red light source 22, green light source 32, and blue light source 42 may generate light of a particular hue, such as white light. In one embodiment, the lighting unit includes mixing optics (not shown) to spatially homogenize the output light generated by the mixed light from the red light source 22 , the green light source 32 and the blue light source 42 .

[0114] Current drivers 28 , 38 , 48 are coupled to the arrays 20 , 30 , 40 res...

example 2

[0130] see Figure 7 , shows an exemplary lighting unit 1 with a detachable fan module. This lighting unit 1 is intended to be installed in a ceiling recess of approximately profile 2 by screw-type fixing 3 . In the upper part of the lighting unit, the fan 4 is detachably positioned on a circuit board 8 configured to act as a controller of the lighting unit. When driven, the fan 4 rotates to draw air into the lighting unit along the path 6 between the side wall of the lighting unit 1 and the recess 2 . The air leaves the upper part of the lighting unit along a path 7 between the opposite side walls of the lighting unit 1 and the recess 2 . The baffle 5 ensures that the air flows substantially from one side of the lighting unit 1 to the other, rather than in the upper volume of the recess 2 . see Figure 8A (Cross-section viewed from above), the air flow 6, 7 passes through the heat sink mounted on the circuit board 8 and removes waste heat from the heat sink.

[0131] F...

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PUM

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Abstract

The present application discloses a method and apparatus for providing a desired warning signal for a lighting unit. A coded warning system is provided that employs a detection module (320) and a signal generation module (330), wherein the detection module is configured to obtain information regarding detection of one or more operating parameters of a lighting unit, and the signal generates The module generates a desired warning signal selected from a plurality of warning signals upon determining that one or more of the operating parameters are abnormal operating parameters (331). Each of the plurality of warning signals is indicative of a specific abnormal operating parameter or a known combination of specific abnormal operating parameters.

Description

technical field [0001] The present invention is generally directed to lighting units. More specifically, various inventive methods and devices disclosed herein relate to lighting units configured to communicate anomalies in their operation via lighting effects and warning systems due to coding of the lighting units. Background technique [0002] Digital lighting technology, ie lighting based on semiconductor light sources such as light emitting diodes (LEDs), offers a viable alternative to traditional fluorescent, HID and incandescent lamps. Functional advantages and benefits of LEDs include high energy conversion and optical efficiency, durability, low operating costs, and many other benefits. Recent advances in LED technology provide efficient and robust full-spectrum light sources that enable a variety of lighting effects in many applications. Some of the fixtures employing these light sources feature a lighting module that includes one or more LEDs capable of producing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B37/03H05B44/00
CPCH05B45/22H05B47/24H05B47/105H05B45/32H05B47/29H05B47/165H05B47/19H05B47/25H05B45/325H05B45/56H05B47/00H05B47/20
Inventor D.洛夫兰S.波利
Owner SIGNIFY HLDG BV