B154 Three-Dimensional Scanless CT measurement of Light Emission Intensity Distribution of a Premixed Flame

2005 ◽  
Vol 2005 (0) ◽  
pp. 83-84
Author(s):  
Osamu Inagawa ◽  
Takuya Hirano ◽  
Masahiro Hirano ◽  
Yojiro Ishino ◽  
Norio Ohiwa
Keyword(s):  
Intensity Distribution ◽  
Emission Intensity ◽  
Light Emission ◽  
Three Dimensional ◽  
Premixed Flame ◽  
Ct Measurement ◽  
Light Emission Intensity

High Efficiency LED Module with 3D Bending Machine

2012 ◽  
Vol 579 ◽  
pp. 10-21 ◽  
Author(s):  
Chung Yi Lin ◽  
Tung Cheng Pan ◽  
Yao Chi Peng ◽  
Jian Shian Lin ◽  
Cheng Hao Ko ◽  
...  
Keyword(s):  
Automatic Control ◽  
Intensity Distribution ◽  
High Efficiency ◽  
Light Emission ◽  
Optical Design ◽  
Three Dimensional ◽  
Control Program ◽  
High Accuracy ◽  
Luminous Intensity ◽  
Bending Angles

Abstract- In this paper, a bending machine for tuning optical design of LED module is proposed. The tuning is done by changing the bending angles of each package on a given module with the help of automatic control program. Luminous intensity distribution can be controlled by adjusting the light emission path, which in turn can be implemented as changing the bending angles of individual LED packages on the module. The proposed machine is capable of bending packages to specified angles with errors less than 0.1°. Three-dimensional light distribution for bent package LED modules is also studied based on various application scenarios so that each scenario can have diversified luminous intensity distribution resulting in higher uniformity and better luminance quality. The machine has several advantages, including quick bending, high accuracy, and great customizability. These advantages make the machine meet the requirements of automatic mold forming.

Combinatorial approach toward optimization of the light emission intensity of AlOxNy:Yb3+ thin films

2019 ◽  
Vol 58 (12) ◽  
pp. 3097 ◽  
Author(s):  
K. Y. Tucto ◽  
W. Aponte ◽  
J. A. Dulanto ◽  
J. A. Töfflinger ◽  
J. A. Guerra ◽  
...  
Keyword(s):  
Thin Films ◽  
Emission Intensity ◽  
Light Emission ◽  
Combinatorial Approach ◽  
Light Emission Intensity

An Automated Procedure for the Sensitive and Specific Determination of ATP

1969 ◽  
Vol 15 (1) ◽  
pp. 3-14 ◽  
Author(s):  
K Van Dyke ◽  
R Stitzel ◽  
T McClellan ◽  
C Szustkiewicz
Keyword(s):  
Emission Intensity ◽  
Light Emission ◽  
Reading Error ◽  
Specific Determination ◽  
Run Up ◽  
Light Emission Intensity

Abstract An automated procedure is described for the measurement of ATP. This method, based on the linear luminescence response of firefly extracts added to ATP, is rapid, reproducible, and allows a relatively large number of samples to be run (up to 35/hr.). A procedure is also given for the preparation of the luciferin-luciferase system from dried firefly lanterns. Sample volumes required are small, and reading error is about ± 3%. Uniform timing of the addition of reagents and reading of light emission intensity for each sample are insured. Variables investigated include dilution of firefly extract, alterations in time after mixing sample and enzyme, linearity, cation, anion, and ADP and AMP interference.

scholarly journals Microwave-assisted modulation of light emission intensity in alkali-pyrotechnic plumes

2021 ◽  
Vol 225 ◽  
pp. 406-416
Author(s):  
Stuart J. Barkley ◽  
Joel E. Lynch ◽  
Eric J. Miklaszewski ◽  
Jonathan M. Dilger ◽  
William F. Crespo ◽  
...  
Keyword(s):  
Emission Intensity ◽  
Light Emission ◽  
Microwave Assisted ◽  
Light Emission Intensity

scholarly journals The Luminescence Properties and Energy Transfer from Ce3+to Pr3+for YAG:Ce3+Pr3+Phosphors

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Rongfeng Guan ◽  
Liu Cao ◽  
Yajun You ◽  
Yuebin Cao
Keyword(s):  
Energy Transfer ◽  
Emission Intensity ◽  
Electronic Excitation ◽  
Light Emission ◽  
Red Light ◽  
Luminescent Properties ◽  
Concentration Increase ◽  
Transfer Phenomenon ◽  
Colour Rendering ◽  
Light Emission Intensity

Y2.94−xAl5O12(YAG):Ce0.06Prxphosphors with various Pr3+concentrations (x=0, 0.006, 0.01, 0.03, 0.06, and 0.09) were synthesized by using a coprecipitation method. The phases, luminescent properties, and energy transfer phenomenon from Ce3+to Pr3+were investigated. The results indicated that the doping of Pr3+  (x≤0.09)did not produce any new phases but caused a slight lattice parameters increase. After Pr3+doping, the YAG:CePr phosphor emits red light at 610 nm, which was regarded helpful for improving the colour rendering index of the phosphor. With Pr3+concentration increase from 0.006 to 0.01 mol, the intensity of red light emission increased slightly; further increasing Pr3+concentration from 0.01 to 0.09, the red light emission intensity decreased gradually. Excitation at 340, and 460 nm could not lead to the direct electronic excitation of Pr3+ions; however, when YAG:CePr was excited at 340 nm a red light emission at 610 nm appeared, which implied the energy transfer phenomenon from Ce3+to Pr3+.

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