Unlock instant, AI-driven research and patent intelligence for your innovation.

Lighting device with luminescent material wheel and excitation radiation source

A technology for lighting devices and luminescent materials, which can be applied to lighting devices, lighting device parts, projection devices, etc., and can solve the problems of conversion light loss and the like

Active Publication Date: 2017-08-29
CORETRONIC
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Otherwise, part of the converted light may be lost in the opposite direction through the transparent substrate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lighting device with luminescent material wheel and excitation radiation source
  • Lighting device with luminescent material wheel and excitation radiation source
  • Lighting device with luminescent material wheel and excitation radiation source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] Features of the same type or of the same type can be provided with the same reference symbols in the following for the sake of simplification.

[0058] figure 1 A schematic diagram of a lighting device 100 according to a first embodiment of the present invention is shown. For better overview reasons, the usual optical lenses used for beam shaping in this type of setup are in the figure 1 not shown in (but see image 3 ). Furthermore, the optical beam paths are only shown schematically.

[0059] The illumination device 100 has a laser device 101 as an excitation radiation source. The laser device 101 is designed to emit laser light in the blue spectral range, since this represents a suitable excitation wavelength for most phosphors. On the other hand, this allows the use of unconverted blue laser light (surround light path) as the blue channel (B), for example for RGB projection units. The emission wavelength of the blue laser beam 1 is preferably in the range of a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an illumination device (100) having an excitation radiation source (101) and phosphor wheels (102) on both sides. At least one phosphor is arranged in each case on both sides of the two phosphor wheels ( 102 ), ie not only on the front side ( 5 ) but also on the opposite rear side ( 6 ). The phosphors on both sides are excited sequentially in time. For this purpose, at least one translucent region is provided in the rotating phosphor wheel, through which excitation radiation is emitted and can be deflected onto the phosphor on the rear side (6) by means of the optical elements (11, 12). The invention also relates to a method for operating a lighting device and the use of the lighting device in a projector for data projection or video projection.

Description

technical field [0001] The invention relates to a lighting device with a source of excitation radiation and a luminescent material wheel for converting at least a part of the excitation radiation into wavelength-converted radiation, often in the visible range of the electromagnetic spectrum ("converted light") ). [0002] A lighting device of this type can be used in particular as a light-generating unit in a projector, for example for a video projector or a data projector. [0003] The invention also relates to a method for operating a lighting device according to the invention. Background technique [0004] A lighting device for projection applications is known from the prior art, for example document US 2010 / 0245777 A1, which has a disc-shaped phosphor wheel with one or more phosphors. The lighting device here comprises an excitation radiation source which excites the phosphor to emit light having a wavelength different from the wavelength of the excitation radiation (w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20G02B26/00G03B33/08H04N9/31F21V9/40
CPCG02B26/008G03B21/204G03B33/08H04N9/3158H04N9/3117H04N9/3161H04N9/3111
Inventor 乌尔里希·哈特维格克劳斯·芬斯特布施
Owner CORETRONIC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com