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Light guide

A light guide and light source technology, applied in the field of light guide, can solve problems such as glare

Inactive Publication Date: 2014-03-19
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, standard LED light source applications often suffer from glare

Method used

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Experimental program
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Embodiment Construction

[0025] Figure 1-4 is a schematic illustration of a cross-section of an embodiment of a light guide of the invention arranged in an embodiment of a luminaire of the invention. First, the common reference Figure 1-4 to describe common features. Second, the differences will be described. A general designation such as 100 will be used when referring to all embodiments of eg light guides. When referring to a particular embodiment, a designation such as, for example, 100bd will be used.

[0026] A luminaire 700 comprising a light guide 100 , a light source 200 and a reflector 800 is disclosed. The reflector 800 is applicable to light sources selected from the group of high intensity discharge lamps and halogen lamps. Thus, the reflector 800 may initially be manufactured for use with a high intensity discharge lamp or a halogen lamp, but thanks to the light guide 100 the reflector 800 can be used together with the light source 200 in the form of at least one light emitting dio...

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PUM

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Abstract

The disclosed embodiments relate to a light guide (100a) and a luminaire (700) including such a light guide (100a). The light guide (100a) guides light emitted in a first direction (500) from a light source (200) comprising at least one light emitting diode (210). The light guide (100) directs a major part of the light in a second direction (600), wherein the first direction (500) is not equal to the second direction (600). The light guide (100a) comprises a cone part (110a) having a shape of a cone, and a center axis (120) of the cone part (110a) is in the first direction (500). The light guide (100a) can be used with reflectors (800) that have originally been manufactured for use with high intensity discharge lamps or halogen lamps but because of the light guide (100a), the reflectors (800) can be used together with light sources (200) in the form of at least one light emitting diode (210).

Description

technical field [0001] The present invention relates to the field of light sources, and more particularly to a light guide. Background technique [0002] LEDs (Light Emitting Diodes), or modules including LEDs, produce light in the form of a hemisphere, rather than the omnidirectional light pattern emitted by other state-of-the-art light sources like HID (High Intensity Discharge) lamps and halogen lamps. LED light sources are also often located at the bottom of the reflector. This necessitates the development of reflectors specifically designed for such LED light sources, which are cost and capacity demanding. Additionally, standard LED light source applications often suffer from glare. Contents of the invention [0003] It is an object of the present invention to overcome or alleviate the problems of the prior art. [0004] According to a first aspect of the invention, this and other objects are achieved by a light guide for guiding light emitted in a first direction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/00
CPCF21V7/041F21Y2101/02F21V7/0025F21Y2115/10
Inventor M.科塞M.范亚斯F.W.F.M.范肯彭
Owner SIGNIFY HLDG BV