Enhancement of light extraction from light emitting diodes
AI Zhmakin - Physics Reports, 2011 - Elsevier
The large amount of light emitted from a light emitting diode (LED) being trapped inside the
semiconductor structure is the consequence of the large value of the refractive index. The …
semiconductor structure is the consequence of the large value of the refractive index. The …
[引用][C] LED packaging for lighting applications: design, manufacturing and testing
S Liu - 2011 - books.google.com
Since the first light-emitting diode (LED) was invented by Holonyak and Bevacqua in 1962,
LEDs have made remarkable progress in the past few decades with the rapid development …
LEDs have made remarkable progress in the past few decades with the rapid development …
Modeling the radiation pattern of LEDs
Light-emitting diodes (LEDs) come in many varieties and with a wide range of radiation
patterns. We propose a general, simple but accurate analytic representation for the radiation …
patterns. We propose a general, simple but accurate analytic representation for the radiation …
Design and characterization of visible-light LED sources for microstructured photoreactors
The design of stable, compact, and uniform LED light sources for continuous microstructured
photoreactors is reported. The electrical and thermal properties of green LEDs are translated …
photoreactors is reported. The electrical and thermal properties of green LEDs are translated …
Far-field condition for light-emitting diode arrays
In practice, any cluster of light-emitting diodes (LEDs) can be modeled or measured as a
directional point source if the detector is far enough away from the cluster. We propose a far …
directional point source if the detector is far enough away from the cluster. We propose a far …
LED array: where does far-field begin?
Any cluster of light-emitting diodes (LEDs) can be modeled as a directional point source if
the far-zone condition is met. A general condition is derived for the distance beyond which …
the far-zone condition is met. A general condition is derived for the distance beyond which …
Transient measurement of light-emitting diode characteristic parameters for production lines
S Zhou, S Liu - Review of Scientific Instruments, 2009 - pubs.aip.org
A new instrument has been developed for transient measurement of light-emitting diodes
(LEDs), including photometric parameters, colorimetric parameters, and electrical …
(LEDs), including photometric parameters, colorimetric parameters, and electrical …
Elimination of flux loss by optimizing the groove angle in modified Fresnel lens to increase illuminance uniformity, color uniformity and flux efficiency in LED …
A Fresnel lens is an optical component that can be used to create systems more compact,
cost-effective, and lightweight than those using conventional continuous surface optics …
cost-effective, and lightweight than those using conventional continuous surface optics …
Optoelectronic sensor device for monitoring the maceration of red wine: Design issues and validation
F Jiménez-Márquez, J Vázquez, JL Sánchez-Rojas - Measurement, 2015 - Elsevier
Enologists usually rely on spectrophotometers to perform the chromatic characterization of
red wines. This work reports an optoelectronic instrument based on absorbance …
red wines. This work reports an optoelectronic instrument based on absorbance …
Luminescent light diffuser for diffuse lighting applications
A Witzmann, CK Gordon, J Howarth, S Unsworth… - …, 2023 - Wiley Online Library
The lighting industry currently accounts for a significant proportion of all energy demand.
Luminescent white lighting is often impure, inefficient, expensive, and detrimentally emits as …
Luminescent white lighting is often impure, inefficient, expensive, and detrimentally emits as …