Nitrogen separation in linear tungsten-halogen lamps

1972 ◽  
Vol 119 (12) ◽  
pp. 1698
Author(s):  
J.R. Coaton
Keyword(s):  
Halogen Lamps

ANNEALING OF HIGH DOSE IMPLANTED GaAs WITH HALOGEN LAMPS

1983 ◽  
Vol 44 (C5) ◽  
pp. C5-247-C5-251 ◽  
Author(s):  
Y. I. Nissim ◽  
B. Joukoff ◽  
J. Sapriel ◽  
N. Duhamel
Keyword(s):  
High Dose ◽  
Halogen Lamps

Analysis of Characteristics of Halogen and LED Automobile Lamps

2020 ◽  
pp. 57-62
Author(s):  
Olga Yu. Kovalenko ◽  
Yulia A. Zhuravlyova
Keyword(s):  
Power Consumption ◽  
Flip Chip ◽  
Weather Conditions ◽  
Luminous Flux ◽  
Luminous Efficacy ◽  
Colour Temperature ◽  
Study Results ◽  
Calculation Results ◽  
Mandatory Rules ◽  
Halogen Lamps

This work contains analysis of characteristics of automobile lamps by Philips, KOITO, ETI flip chip LEDs, Osram, General Electric (GE), Gtinthebox, OSLAMPledbulbs with H1, H4, H7, H11 caps: luminous flux, luminous efficacy, correlated colour temperature. Characteristics of the studied samples are analysed before the operation of the lamps. The analysis of the calculation results allows us to make a conclusion that the values of correlated colour temperature of halogen lamps are close to the parameters declared by manufacturers. The analysis of the study results has shown that, based on actual values of correlated colour temperature, it is not advisable to use LED lamps in unfavourable weather conditions (such as rain, fog, snow). The results of the study demonstrate that there is a slight dispersion of actual values of luminous flux of halogen lamps by different manufacturers. Maximum variation between values of luminous flux of different lamps does not exceed 14 %. The analysis of the measurement results has shown that actual values of luminous flux of all halogen lamps comply with the mandatory rules specified in the UN/ECE Regulation No. 37 and luminous flux of LED lamps exceeds maximum allowable value by more than 8 %. Luminous efficacy of LED lamps is higher than that of halogen lamps: more than 82 lm/W and lower power consumption. The results of the measurements have shown that power consumption of a LED automobile lamp is lower than that of similar halogen lamps by 3 times and their luminous efficacy is higher by 5 times.

scholarly journals Single-Crystal Growth of Sr2RuO4 by the Floating-Zone Method Using an Infrared Image Furnace with Improved Halogen Lamps

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 392
Author(s):  
Naoki Kikugawa ◽  
Dmitry A. Sokolov ◽  
Tohru Nagasawa ◽  
Andrew P. Mackenzie
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Infrared Image ◽  
Single Crystal Growth ◽  
Molten Zone ◽  
Floating Zone ◽  
Unconventional Superconductor ◽  
Zone Method ◽  
Floating Zone Method ◽  
Halogen Lamps

We report the single-crystal growth of the unconventional superconductor Sr2RuO4, on which research has reached a turning point recently. In order to optimize the quality of crystals grown by the floating-zone method using an infrared image furnace, we focus on an improvement of the structure of the filament in the halogen lamps. By reducing the thickness of the total filament, the form of the molten zone was narrowed. More importantly, the molten zone was observed to be more stable during the growth process. Finally, we obtained the crystals with a length of 12 cm. Additionally, the grown crystal has high quality, displaying the 1.5 K transition temperature expected only for the purest crystals. We also discuss the availability of the newly developed halogen lamps.

Testing Human Visual Detection with Xenon and Halogen Lamps as Used on Forest Machines

2007 ◽  
Vol 18 (2) ◽  
pp. 9-14
Author(s):  
Leo Poom ◽  
Claes Löfroth ◽  
Berndt Nordén ◽  
Magnus Thor
Keyword(s):  
Visual Detection ◽  
Halogen Lamps

Fabrication and Irradiance Mapping of a Low Cost Solar Simulator for Indoor Testing of Solar Collector

2011 ◽  
Vol 133 (4) ◽  
Author(s):  
F. Hussain ◽  
M. Y. H. Othman ◽  
B. Yatim ◽  
H. Ruslan ◽  
K. Sopian ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Solar Collector ◽  
Low Cost ◽  
Test Area ◽  
Solar Simulator ◽  
Halogen Lamps

The fabrication and testing of a solar simulator for indoor testing of solar collector are described. Consisting of Philips 500 W halogen lamps with built-in reflector, which are arranged at 30 cm apart, the system covers a test area suitable for a solar collector of size 120 cm by 53 cm. The height of the lamps above the solar collector under test is set to 160 cm. Measurement of the uniformity of the irradiance over the test area has been made. Four sets of irradiance mapping were performed at 466, 580, 686, and 804 W/m2, yielding at each point the irradiance uniformity percentage of 8.9, 7.6, 6.9, and 7.8%, respectively. The infrared radiation produced by the lamps was filtered by air flowing over the test area.

Rapid Annealing Using Halogen Lamps

1984 ◽  
Vol 131 (5) ◽  
pp. 1145-1152 ◽  
Author(s):  
Juri Kato ◽  
Seiichi Iwamatsu
Keyword(s):  
Rapid Annealing ◽  
Halogen Lamps

scholarly journals Irradiance characteristic of a small-scale solar simulator for testing thermal collectors

2019 ◽  
Vol 112 ◽  
pp. 02012
Author(s):  
Adina-Teodora Gheorghian ◽  
Valentin Apostol ◽  
Tudor Prisecaru ◽  
Camelia Stanciu ◽  
Horaţiu Pop
Keyword(s):  
Stable Distribution ◽  
Small Scale ◽  
Solar Simulator ◽  
Total Irradiation ◽  
Halogen Lamps

This paper describes the development of a small-scale solar simulator for research and educational purposes. The main goal is to provide a uniform and stable distribution of irradiation from a set of four floodlight halogen lamps, over a targeted area of 40x40 cm2. The floodlights are placed perpendicularly to each other, on the top end of a light tube. Two types of halogen lamps were characterised and the total irradiation of the solar simulator was measured over a 5x5 grid. The results showed that the two arrangements of lamps are able to achieve a level of 1000 W/m2 on the 40x40 cm2 targeted area, but the non-uniformity is unsatisfactory. In order to reach a non-uniformity level of 10% using the proposed lamps arrangements, the targeted area should be reduced to 31x31 cm2.

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