Relevant bibliographies by topics / LED-halogen illuminator

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'LED-halogen illuminator'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "LED-halogen illuminator"

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Shchuruk, Georgy Z., Olexander Z. Shchuruk, and Anton G. Shchuruk. "The evolution of headlight devices in the work of otorhinolaryngologists." OTORHINOLARYNGOLOGY, No2(4) 2021 (March 24, 2021): 66–71. http://dx.doi.org/10.37219/2528-8253-2021-2-66.

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Invention and improving the methods of ENT examination are closely connected with the technological inventions of the 19th and 20th centuries. The invention of the classical exam head mirror in 1861 and improvement of the manufacturing of compact and powerful sources of light (filament lamps) at the time caused the researchers to create new devices for ENT examination. In particular, a head-mounted electro-mirror was created, the principle of which later became the basis for the development of fiber-optic headlamps. The emergence of powerful halogen and xenon light sources in the mid-20th cent
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Efe, Serhat Berat, and Derman Varhan. "Interior Lighting of a Historical Building by Using LED Luminaires: A Case Study of Fatih Paşa Mosque." Light & Engineering, no. 04-2020 (August 2020): 77–83. http://dx.doi.org/10.33383/2020-09.

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In this study, a place of worship lighting in accordance with CIE standards was examined. Halogen lamps were used in the place of worship lighting, which was physically applied. Halogen lamp lighting and LED illuminated place of worship environment were compared in terms of luminance level and economic cost in a simulation environment. The illumination level should be 100 lx or above for places of worship according to CIE standards. Lighting using LED lamps, which provide 100 lx illuminance levels, has yielded 85 % more efficient results than illumination by halogen lamps.
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Koós, Dániel, and István Bodnár. "Designing Procedure of Led-Halogen Hybrid Solar Simulator to Small Size Solar Cell Testing." Műszaki Tudományos Közlemények 9, no. 1 (2018): 123–26. http://dx.doi.org/10.33894/mtk-2018.09.26.

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Abstract During the experimental investigation of solar cells, the quality of the illumination is essential. In the case of solar simulators, the main goal is the accurate reproduction of sunlight. The designing procedure of a halogen LED hybrid solar simulator is described in this article. One of the main goals is the compliance with the relevant standard (ASTM E972).
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Guillén, Cecilia. "Evaluating Photovoltaic Conversion Performance under Artificial Indoor Lighting." Electronics 13, no. 17 (2024): 3378. http://dx.doi.org/10.3390/electronics13173378.

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Several photovoltaic technologies, based on different semiconductor absorbers with band-gap energy in the range Eg = 1.0–1.5 eV are currently sharing the market for outdoor applications. These photovoltaic cells are designed to achieve an optimal photovoltaic conversion under solar illumination (represented by the standard AM1.5 global spectrum), but their performance changes under different artificial indoor lights. Here, the detailed balance principle that was first applied for an ideal photovoltaic absorber under solar radiation is now used by considering the actual spectra of four typical
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Junita, Egri, and Harmadi Harmadi. "Perancangan Sistem Akuakultur pada Fotobioreaktor Mikroalga Chlorella vulgaris." Jurnal Fisika Unand 9, no. 3 (2020): 345–51. http://dx.doi.org/10.25077/jfu.9.3.345-351.2020.

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Telah dilakukan perancangan sistem akuakultur pada fotobioreaktor mikroalga Chlorella vulgaris. Sistem akuakultur pada fotobioreaktor dirancang menggunakan sumber cahaya yang berbeda yaitu cahaya matahari, lampu halogen dan LED biru. Sistem ini berisi 1040 mL mikroalga yang dialiri gas CO2 dengan kecepatan alir 1,5 L/min dan dirancang dengan alat kontrol temperatur menggunakan sensor LM35. Temperatur pada sistem dipertahankan pada rentang (25-35)°C. Intensitas cahaya pada lampu halogen divariasikan yaitu 1000 Lux, 3000 Lux dan 5000 Lux. Sistem akuakultur yang dirancang dapat meningkatkan kadar
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Wren, S. N., D. J. Donaldson, and J. P. D. Abbatt. "Photochemical chlorine and bromine activation from artificial saline snow." Atmospheric Chemistry and Physics Discussions 13, no. 5 (2013): 14163–93. http://dx.doi.org/10.5194/acpd-13-14163-2013.

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Abstract. The activation of reactive halogen species – particularly Cl2 – from sea ice and snow surfaces is not well understood. In this study, we used a photochemical snow reactor coupled to a chemical ionization mass spectrometer to investigate the production of Br2, BrCl and Cl2 from NaCl/NaBr-doped artificial snow samples. At temperatures above the NaCl-water eutectic, illumination of samples (λ > 310 nm) in the presence of gas phase O3 led to the accelerated release of Br2, BrCl and the release of Cl2 in a process that was significantly enhanced by acidity, high surface area and additi
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Wren, S. N., D. J. Donaldson, and J. P. D. Abbatt. "Photochemical chlorine and bromine activation from artificial saline snow." Atmospheric Chemistry and Physics 13, no. 19 (2013): 9789–800. http://dx.doi.org/10.5194/acp-13-9789-2013.

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Abstract. The activation of reactive halogen species – particularly Cl2 – from sea ice and snow surfaces is not well understood. In this study, we used a photochemical snow reactor coupled to a chemical ionization mass spectrometer to investigate the production of Br2, BrCl and Cl2 from NaCl/NaBr-doped artificial snow samples. At temperatures above the NaCl-water eutectic, illumination of samples (λ > 310 nm) in the presence of gas phase O3 led to the accelerated release of Br2, BrCl and the release of Cl2 in a process that was significantly enhanced by acidity, high surface area and additi
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Schuerger, Andrew C., and Jeffrey T. Richards. "Effects of artificial lighting on the detection of plant stress with spectral reflectance remote sensing in bioregenerative life support systems." International Journal of Astrobiology 5, no. 2 (2006): 151–69. http://dx.doi.org/10.1017/s1473550406003053.

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Plant-based life support systems that utilize bioregenerative technologies have been proposed for long-term human missions to both the Moon and Mars. Bioregenerative life support systems will utilize higher plants to regenerate oxygen, water, and edible biomass for crews, and are likely to significantly lower the ‘equivalent system mass’ of crewed vehicles. As part of an ongoing effort to begin the development of an automatic remote sensing system to monitor plant health in bioregenerative life support modules, we tested the efficacy of seven artificial illumination sources on the remote detec
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Markina, O. M. "Lighting setting features of opto-electronic measuring system for controlling adhesive joints optical components." Journal of Achievements in Materials and Manufacturing Engineering 2, no. 84 (2017): 49–57. http://dx.doi.org/10.5604/01.3001.0010.7781.

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Purpose: The purpose of this article is to study the features of setting and selecting the source of illumination of the optoelectronic measuring system for the control of adhesive joints of optical parts. Design/methodology/approach: The research and analysis of the lighting characteristics of halogen and LED lamps, used as a source of illumination in the measuring system, was carried out. Findings: In the course of experimental studies, the sensitivity and resolution of fixing defects of adhesive joints of optical parts were increased and the measurement error was reduced from 10 ± 1.2 micro
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NGUYEN, Van Son, Véronique JUBERA, Alain GARCIA, Claude LUCAT, and Hélène DEBEDA. "Towards hydrogen detection at room temperature with printed ZnO nanoceramics films activated with halogen light." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, CICMT (2015): 000224–29. http://dx.doi.org/10.4071/cicmt-wp13.

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Though semiconducting properties of ZnO have been extensively investigated under hazardous gases, research is still necessary for low-cost sensors working at room temperature. Study of printed ZnO nanopowders based-sensor has been undertaken for hydrogen detection. A ZnO paste made with commercial nanopowders is deposited on interdigitated Pt electrodes and sintered at 400°C. ZnO layer structure and morphology are first examined by XRD, SEM and emission/excitation spectra prior to the study of the effect of UV-light on the electrical conduction of the semiconductor oxide. Then, the response to
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Dissertations / Theses on the topic "LED-halogen illuminator"

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Полежаева, О. В., Р. В. Зайцев та М. В. Кириченко. "Светодиодно-галогеновый осветитель". Thesis, Сумский государственный университет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/41063.

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Одной из проблем создания имитаторов солнечного излучения является приближение спектрального состава их излучения к солнечному спектру. Ранее созданы осветители, для исследования фотоэлектрических преобразователей, на основе вольфрамовых ламп накаливания и импульсных ксеноновых ламп, главные недостатки которых: существенное несоответствие спектра имитируемого излучения солнечному, значительная инерционность и энергопотребление. В настоящий момент стало возможным существенно приблизиться к желаемым свойствам за счет использования полупроводниковых светодиодов разного цвета.
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Conference papers on the topic "LED-halogen illuminator"

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Bullough, John D., and Nicholas P. Skinner. "Performance of Headlights Fitted with LED Replacement Bulbs." In WCX SAE World Congress Experience. SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2230.

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<div class="section abstract"><div class="htmlview paragraph">To ensure adequate visibility without excessive glare, vehicle headlights are designed to use a specific source of illumination. The optical designs of headlights gather the luminous flux produced by the light source to produce a useful beam pattern that meets the relevant requirements and standards for vehicle forward lighting. With the advent of solid state, light emitting diode sources for general illumination, an increasing number of LED replacement headlight bulb products has emerged over the past decade. In most ca
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Štampfl, Veronika, and Jure Ahtik. "The influence of the surrounding space on the lighting conditions in a photographic scene." In 11th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design, 2022. http://dx.doi.org/10.24867/grid-2022-p95.

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Lighting conditions are one of the most important factors for good photographic exposure. In enclosed spaces, like a photography studio, we can control the light in several ways. We can adjust the type of light source, the shape of the light source, its intensity, and in some cases the colour temperature of the emitted light. The distance of the light source from the observed photographic scene affects the amount of light that reaches the desired target, and therefore the actual lighting conditions on the photographic scene. However, the environment surrounding the photographic scene is often
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Journal articles
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