Hans-Helmut Bechtel

CONVERSION ELEMENT WITH POROUS LAYER

#2 | 2024-10-03

US20240327706A1

OXONITRIDOBERYLLOSILICATE PHOSPHORS

#3 | 2022-05-12

US20220146058A1

Light emitting device with improved warm-white color point

#4 | 2021-01-21

US20210018152A1

Light emitting device with improved warm-white color point

#5 | 2020-12-31

US20200411736A1

Phosphor layer for micro-LED applications

#6 | 2019-10-24

US20190323677A1

Laser lighting module with safety function

#7 | 2019-05-09

US20190140146A1

High luminance crisp white LED light source

#8 | 2019-05-09

US20190137063A1

Light converting device with translucent layer disposed on a light converting layer for converting and scattering laser light

#9 | 2019-03-28

US20190093832A1

Light emitting device with improved warm-white color point

#10 | 2017-11-16

US20170331011A1

METHOD OF FORMING A WAVELENGTH CONVERTED LIGHT EMITTING DEVICE

#11 | 2017-06-08

US20170162758A1

LED based device with wide color gamut

#12 | 2017-02-16

US20170047492A1

LED with scattering features in substrate

#13 | 2017-02-16

US20170047491A1

Light scattering and conversion plate for LEDs

#14 | 2017-01-12

US20170012183A1

Method of forming a wavelength converted light emitting device

#15 | 2016-10-27

US20160315070A1

Light emitting device including a filter and a protective layer

#16 | 2016-10-20

US20160308098A1

PHOSPHOR CONVERTED LIGHT EMITTING DIODE, A LAMP AND A LUMINAIRE

#17 | 2016-07-07

US20160197246A1

White emitting light source and luminescent material

#18 | 2015-02-05

US20150034990A1

Controlling LED emission pattern using optically active materials

#19 | 2014-10-30

US20140319537A1

White emitting light source and luminescent material

#20 | 2014-03-13

US20140070693A1

White emitting light source and luminescent material

#21 | 2014-03-06

US20140062336A1

Method of illumination having light emitting device with ceramic conversion material

#22 | 2013-09-19

US20130240943A1

Red emitting luminescent materials

#23 | 2012-11-15

US20120286647A1

Phosphor converted LED

#24 | 2012-05-31

US20120134134A1

Arrangement for emitting mixed light

#25 | 2011-09-15

US20110220953A1

LED assembly

#26 | 2011-06-16

US20110140131A1

Performing operations; transporting

Photo-detector with wavelength converter

#27 | 2011-02-10

US20110031474A1

Electroluminescent device with improved light decoupling

#28 | 2010-12-23

US20100320492A1

Red emitting SiAlON-based material

#29 | 2010-10-28

US20100273639A1

CERAMIC MATERIAL FOR LEDS WITH REDUCED SCATTERING AND METHOD OF MAKING THE SAME

#30 | 2010-07-01

US20100164344A1

Light emitting device including multiple OLEDs

#31 | 2010-06-03

US20100133563A1

Illumination system comprising a radiation source and a luminescent material

#32 | 2010-03-18

US20100067233A1

Arrangement for emitting mixed light

#33 | 2010-03-11

US20100059777A1

Illumination device, particularly with luminescent ceramics

#34 | 2010-03-04

US20100053933A1

White emitting light source and luminescent material with improved colour stability

#35 | 2009-10-01

US20090244923A1

Light emitting device with ceramic conversion material

#36 | 2009-07-09

US20090174309A1

Light emitting device with a plurality of uniform diameter ceramic spherical color converter elements

#37 | 2009-04-23

US20090105065A1

LIGHT EMITTING DEVICE WITH A CERAMIC GARNET MATERIAL

#38 | 2009-03-26

US20090078949A1

Physics

Light emitting device with conversion structure

#39 | 2009-03-19

US20090072710A1

Fluorescent lighting creating white light

#40 | 2009-03-12

US20090066221A1

Electroluminescent device

#41 | 2009-01-29

US20090026908A1

Light-emitting device

#42 | 2009-01-08

US20090009443A1

Physics

Display Device

#43 | 2008-12-11

US20080303407A1

Display device with solid state fluorescent material

#44 | 2008-11-27

US20080290785A1

Light emitting device with an improved CaAlSiN light converting material

#45 | 2008-10-30

US20080265749A1

Phosphor-Converted Electroluminescent Device with Absorbing Filter

#46 | 2008-09-11

US20080220260A1

Light Emitting Device With A Ceramic Sialon Material

#47 | 2008-09-04

US20080211387A1

Electroluminescent device

#48 | 2008-08-28

US20080203421A1

Structured substrate for a LED

#49 | 2008-08-14

US20080191615A1

Electroluminescent light source

#50 | 2008-08-14

US20080191609A1

Illumination System Comprising a Red-Emitting Ceramic Luminescence Converter

#51 | 2008-04-24

US20080093977A1

Electroluminescent light source with improved color rendering

#52 | 2008-03-13

US20080061688A1

Electroluminescent device with improved light output

#53 | 2007-12-06

US20070278944A1

Display with Reflective Isolating Separator Layer

#54 | 2007-11-01

US20070254208A1

Method for Photo-Embossing a Monomer-Containing Layer

#55 | 2007-09-27

US20070221910A1

Intermediate Layer in Electroluminescent Arrangements and Electroluminescent Arrrangement

#56 | 2007-03-08

US20070053208A1

Uv light source coated with nano-particles of phosphor

#57 | 2006-12-21

US20060286318A1

Luminaire

#58 | 2006-10-24

US10478073

Liquid crystal picture screen with collimator having microprisms

#59 | 2006-10-19

US20060232992A1

Circuit arrangement for ac driving of organic diodes

#60 | 2006-08-17

US20060180807A1

Electroluminescent device with homogeneous brightness

#61 | 2006-05-16

US10494608

Vacuum display device

#62 | 2006-03-30

US20060067621A1

Textiles; paper

Electro-optic filament or fibre

#63 | 2006-02-16

US20060033856A1

Display device with varistor layer

#64 | 2005-12-13

US10143644

Plasma color display screen with pixel matrix array

#65 | 2005-11-24

US20050261751A1

Tanning device

#66 | 2005-11-03

US20050242698A1

Color cathode ray tube having uv-reflective coating

#67 | 2005-09-22

US20050206311A1

Electroluminescent device with improved light output

#68 | 2005-09-08

US20050194882A1

Color cathode ray tube with optical filter system

#69 | 2005-08-18

US20050179386A1