TW200608597A - Light emitting diode with diffraction lattice - Google Patents
Light emitting diode with diffraction latticeInfo
- Publication number
- TW200608597A TW200608597A TW093125091A TW93125091A TW200608597A TW 200608597 A TW200608597 A TW 200608597A TW 093125091 A TW093125091 A TW 093125091A TW 93125091 A TW93125091 A TW 93125091A TW 200608597 A TW200608597 A TW 200608597A
- Authority
- TW
- Taiwan
- Prior art keywords
- cpdl
- led
- light
- light emitting
- diffraction lattice
- Prior art date
Links
Landscapes
- Electroluminescent Light Sources (AREA)
- Led Devices (AREA)
Abstract
A method of fabricating light emitting diodes (LED) with a colour purifying diffraction lattice (CPDL) is suggested, the essence of the invention is in the use of the coherent scattering of the light by the CPDL for colour purifying of the light emitted by the LED and enhancement its extraction efficiency, the CPDL is a hexagonal two-dimensional periodical pattern on the surface of the LED structure or an internal interface resulting in the periodical variation in the refractive index with the period d. The period of CPDL satisfies the equation d=m λ/n, where m is a positive integer number, λ is the wavelength of the light generated by LED, and n is the refraction index of LED structure. The height of the hexagonal islands forming CPDL is h=λ(2l+1)/2n, l is a positive integer number or zero. Use of CPDL allows to convert the laterally propagating light into the vertically propagating and simultaneously filter its spectrum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93125091A TWI276232B (en) | 2004-08-20 | 2004-08-20 | Light emitting diode with diffraction lattice |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93125091A TWI276232B (en) | 2004-08-20 | 2004-08-20 | Light emitting diode with diffraction lattice |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200608597A true TW200608597A (en) | 2006-03-01 |
TWI276232B TWI276232B (en) | 2007-03-11 |
Family
ID=38646182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93125091A TWI276232B (en) | 2004-08-20 | 2004-08-20 | Light emitting diode with diffraction lattice |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI276232B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102124583A (en) * | 2008-06-26 | 2011-07-13 | 3M创新有限公司 | Semiconductor light converting construction |
-
2004
- 2004-08-20 TW TW93125091A patent/TWI276232B/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102124583A (en) * | 2008-06-26 | 2011-07-13 | 3M创新有限公司 | Semiconductor light converting construction |
CN102124583B (en) * | 2008-06-26 | 2013-06-19 | 3M创新有限公司 | Semiconductor light converting construction |
Also Published As
Publication number | Publication date |
---|---|
TWI276232B (en) | 2007-03-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW200507690A (en) | Optical device and organic EL display | |
DE60014380T2 (en) | LIGHT PANEL | |
RU2004125166A (en) | DIFFERENT PROTECTIVE ELEMENT WITH INTEGRATED OPTICAL WAVEGUIDE | |
EP2843716A3 (en) | Textured phosphor conversion layer light emitting diode | |
TW200745484A (en) | Lighting device | |
RU2011146337A (en) | LIGHTING DEVICE | |
TW200604580A (en) | Refractive index modulated diffraction-type optical element and projector including the same | |
WO2009017035A1 (en) | Translucent substrate, method for manufacturing the translucent substrate, organic led element and method for manufacturing the organic led element | |
WO2009060916A1 (en) | Light transmitting substrate, method for manufacturing light transmitting substrate, organic led element and method for manufacturing organic led element | |
EP1705763A3 (en) | Quantum cascade laser with grating formed by a periodic variation in doping | |
RU2008103332A (en) | METHOD FOR OBTAINING JEWELERY | |
TW200608597A (en) | Light emitting diode with diffraction lattice | |
EP2228836A3 (en) | Light emitting device | |
TW201346187A (en) | LED light mixing element | |
US20070057266A1 (en) | Light emitting diode with diffraction lattice | |
PH12019501148A1 (en) | Optical device augmenting the emission of electro-luminescent light sources with help of a dichroic zno nanorod comprising filter | |
RU112341U1 (en) | LED LAMP | |
Halpin et al. | Study of top ITO nano-gratings on GaN LEDs | |
CN204204897U (en) | A kind of graphical LED substrate of tower-like pattern and LED chip | |
Liu et al. | Using three-component hierarchical structures to improve the light extraction from white LEDs based on red-green-blue color mixing method | |
TW200742117A (en) | Light-emitting diode having forward light-guide structure and method manufacturing the same | |
JP2006059864A (en) | Light emitting element | |
GB2417825A (en) | LED with a colour purifying diffraction lattice | |
JP2012079663A (en) | Surface light source element and luminaire including the same | |
FALLAHI et al. | Integrated hybrid optoelectronic devices |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |