An illumination device comprising a light source and a light-guide

一种照明设备、光导的技术，应用在照明和加热设备、光导、光源等方向，能够解决目的不一致等问题

Active Publication Date: 2009-08-05
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this is inconsistent with the purpose of the device disclosed in WO2006054199 to realize said lighting device in the existing lamp shape

Method used

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  • An illumination device comprising a light source and a light-guide
  • An illumination device comprising a light source and a light-guide
  • An illumination device comprising a light source and a light-guide

Examples

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Embodiment Construction

[0025] figure 1 A longitudinal section through a first embodiment of a lighting device 1 according to the invention is shown. The lighting device comprises a semiconductor light source 10 for generating light and a primary optical system 20 for feeding the light to a secondary optical system 30 provided to radiate the light and achieve the desired radiation pattern.

[0026] The semiconductor light source 10 includes at least one light emitting element, such as an LED or a laser diode.

[0027] The primary optical system 20 comprises a light guide having a first end 21, a second end 22, an optical axis 23 extending between the first and second ends, a mirrored end face 24 and an outcoupling structure 25. The outcoupling structure is located between the first and second ends for guiding outcoupled light into the secondary optical system 30.

[0028] The secondary optical system 30 comprises mirrors and / or lens systems designed to achieve the desired light radiation pattern. ...

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Abstract

Proposed is an illumination device (1), comprising a semiconductor light source (10) for generating light, a primary optical system (20) for feeding the light to a secondary optical system (30), which is provided for radiating the light and for achieving a desired radiation pattern. The semiconductor light source may comprise LEDs and / or Laser- Diodes. The primary optical system comprises a light-guide with a mirrored end-face (24) and an out-coupling structure (25) for directing light into the secondary optical system. The mirrored end-face optically folds the light-guide, effectively extending the length over which the light is advantageously homogenized inside the light guide. Furthermore, optically folding the light-guide makes more economical use of the space inside the secondary optical system. This is especially advantageous when designing an LED based retrofit for existing form factors of halogen based illumination devices.

Description

technical field [0001] The invention relates to a lighting device, which comprises: a semiconductor light source device; a main optical system, which comprises a light guide, the light guide has a first end, a second end, and a light guide between the first end and the second end An optical axis extending between and an outcoupling structure located between the first end and the second end for outcoupling light, wherein the light source device is configured to couple light into the first end ; a secondary optical system, wherein said light guide is arranged to guide outcoupled light into said secondary optical system in order to achieve a desired light radiation pattern. Such lighting fixtures are specifically sized to replace conventional lighting fixtures using incandescent, halogen or gas discharge bulbs or lamp caps. Background technique [0002] An embodiment of a lighting device of the mentioned type is known from the application WO2006054199. This document discloses...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V8/00F21K7/00F21Y101/02F21K99/00
CPCG02B6/0033F21K9/52F21Y2101/02F21K9/61F21Y2115/10
Inventor W·范杜内弗尔特
Owner SIGNIFY HLDG BV
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