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LED lighting

A light-emitting diode and light-emitting technology, which is applied in the field of lighting systems, can solve problems such as unreliability, increased volume of sensors, and inability to adjust light-emitting diodes correctly, and achieves the effect of compact design and easy implementation.

Inactive Publication Date: 2007-06-06
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A disadvantage associated with the described way of controlling light distribution is the need to design a control system
Additionally, sensors and control systems may limit lighting system design
Third, with this design, the sensor adds bulk and can darken the light distribution of the LEDs
Fourth, requiring all sensors to operate accurately is unreliable
For example, if one of the sensors is damaged or destroyed, this system cannot properly regulate the associated LED(s)

Method used

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Embodiment Construction

[0032] Preferred embodiments in accordance with the present invention are described below, wherein reference characters refer to like or corresponding parts throughout the drawings. All embodiments suitably include conventional electronic circuits for operating light emitting diodes, which are well known in the art and therefore will not be described in greater detail here.

[0033]Figure 1A shows a schematic cross-sectional view of a light emitting diode assembly 10 in accordance with the present invention. This assembly comprises a light mixing chamber 11 in which two light emitting diodes 12, 14 are arranged, each surrounded by a reflector 15, 16 and a lens. In this embodiment, side emitting light emitting diodes are used. The advantage of such a light-emitting diode is that a mix of light-emitting diodes with a relatively low number of wall reflections is facilitated by the radiation pattern emitted by the side of the light-emitting diode. Therefore, high efficiency can ...

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Abstract

The present invention generally relates to a lighting system comprising LED modules (10, 20), arranged adjacent to each other, preferably in a matrix configuration. By introducing light apertures (101) between two or several adjacent modules, each comprising a mixing chamber (11, 21), light is transmitted sideways between the mixing chambers of the adjacent modules, whereby the perceived lighting from the associated module windows is equalized. Hence, the invention facilitates an homogenization of perceived illumination without the need for an electronic control system.

Description

technical field [0001] The present invention generally relates to lighting systems including light emitting diode assemblies, and more particularly, the present invention relates to systems and methods for improving the lighting characteristics of light emitting diode assembly systems, and the present invention also relates to light emitting diode assemblies for use in such systems. Background technique [0002] It is well known to use components comprising light emitting diodes (LEDs) when arranging lighting systems for general lighting applications. When designing these light emitting diode systems and light emitting diode assemblies, care should be taken to implement a system that facilitates obtaining the desired intensity, uniformity, and color temperature of each color, and which preferably requires a minimum amount of design effort. In general, a system in which the illumination is as uniform as possible is most preferred. [0003] In one type of conventional light e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00
CPCF21S2/005F21Y2101/02F21S10/02F21Y2115/10F21Y2113/13
Inventor S·M·韦尔布鲁格N·B·普菲菲尔S·J·M·库彭斯
Owner KONINK PHILIPS ELECTRONICS NV