Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Optical converter for high luminances

A converter and high-brightness technology, applied in the field of optical converters, can solve problems such as light share decline, and achieve the effects of small emission spots, good light confinement, and high brightness

Inactive Publication Date: 2014-07-02
SCHOTT AG
View PDF11 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the material scatters so strongly that the excitation light is also diffusely reflected before it is absorbed, the fraction of converted light decreases

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
  • Optical converter for high luminances
  • Optical converter for high luminances
  • Optical converter for high luminances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0081] An exemplary embodiment of the invention is subsequently described with the aid of these figures.

[0082] As a first example, figure 1 A side view showing the schematic structure of a diffusely operating converter.

[0083] The converter comprises a converter body 1 designed as an opto-ceramic and a mirror 3 , which are connected to one another via an adhesive layer 2 . The converter material (optoceramic) is a doped YAG ceramic or LuAG ceramic and forms a grain structure with strong scattering.

[0084] From above, i.e. from the excitation side, blue excitation light 4 of high power density (i.e. with a small beam cross section) falls onto the excitation side of the converter body 1 and, after entering the optoceramic, is converted to produce a long wavelength light 5 and is output outwards by scattering, as shown by the arrows.

[0085] The adhesive layer 2 has, for example, a thickness d of 10 μm Kleb . The mirror 3 reflects the excitation light 4 into the opto...

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

PropertyMeasurementUnit
luminanceaaaaaaaaaa
thicknessaaaaaaaaaa
quantum efficiencyaaaaaaaaaa
Login to View More

Abstract

The invention relates to an optical converter for producing colored or white light from blue excitation light (4). In addition to good conversion, the converter also has good scattering properties in order to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components (5). The converter material is a YAG ceramic or LuAG ceramic or a magnesium-aluminum ceramic having strong scattering.

Description

technical field [0001] The invention relates to a light converter for the generation of colored or white light, in which short-wavelength excitation light is converted by a converter medium into converted light with a longer wavelength. Background technique [0002] The long-wavelength excitation light is converted into diffusely reflected light with a longer wavelength by absorption and emission processes in the converter material. [0003] Within the meaning of the present invention, a converter is understood to be a part of a device for light conversion in which the conversion takes place. The converter here consists of a converter material. The converter material contains a luminescent material which, as a photoactive medium, brings about the conversion. The converter material can have differently sized phosphor densities. The expression “phosphor density” relates to the distribution of the phosphor or phosphor particles in the converter material. Thus, the luminesce...

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 Applications(China)
IPC IPC(8): C09K11/77C04B35/115C04B35/44C04B35/443F21V9/40
CPCC04B2235/3225F21V9/16C09K11/646C09K11/7774Y02B20/181C04B2235/763C04B2235/3286F21V13/08C04B2235/3224C09K11/7721C09K11/7706C04B35/44C04B2235/9653F21V9/30F21V9/45Y02B20/00C09K11/77214
Inventor 沃尔克·哈格曼彼得·纳斯伊冯娜·门克贝恩特·霍佩沃尔弗拉姆·拜尔赖纳·利巴尔德尼古·舒尔茨京特·魏德曼豪克·埃塞曼
Owner SCHOTT AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com