Physical and Luminescence Studies of Er3+-Doped into Borate Glass for IR Lighting Application

2021 ◽  
Vol 221 (1) ◽  
pp. 12-19
Author(s):  
N. Jarucha ◽  
N. Wantana ◽  
Y. Ruangtaweep ◽  
J. Kaewkhao ◽  
S. Kothan ◽  
...  
Keyword(s):  
Borate Glass ◽  
Lighting Application

Possibility of Using in Russia the Experience of LED Lighting Application at the USA Airfields

2019 ◽  
pp. 71-77
Author(s):  
Vladimir V. Vorozhikhin ◽  
Eugenia L. Moreva ◽  
Vladimir G. Starovoytov ◽  
Igor G. Tyutyunnik
Keyword(s):  
Air Transportation ◽  
Improve Quality ◽  
Led Lighting ◽  
The Us ◽  
The Usa ◽  
Quality And Reliability ◽  
Lighting Application

The purpose of this paper is an investigation of LEDs illumination experience at US-based aerodromes with an assessment of its feasibility and its necessity in Russia. The following methods were used: the analysis of aerodrome lighting requirements; the review and the analysis of development features in aerodrome LEDs illumination; the experience analysis of LEDs illumination of US-based aerodromes; the deductive analysis and the assessment synthesis of feasibility and necessity of US experience in LEDs illumination at Russian-based aerodromes. The following results were achieved: – The analysis of issues and opportunities was conducted for development of LEDs illumination at US-based aerodromes and of American experts’ recommendations for its use; – The cases were taken for use and assessment of development in LEDs illumination at US-based aerodromes; – The review and the analysis were conducted in relation to a developing market of LEDs illumination at Russian-based aerodromes. The main conclusion is that the US experience will improve quality and reliability of service provided in air transportation, comfort, and safety of Russian flights, as well as competitiveness of Russian- based airports and airlines (indirectly).

Recent Progress of YAG:Ce3+ for White Laser Diode Lighting Application

2020 ◽  
Vol 41 (12) ◽  
pp. 1504-1528 ◽  
Author(s):  
Pan HU ◽  
◽  
Hui DING ◽  
Yong-fu LIU ◽  
Peng SUN ◽  
...  
Keyword(s):  
Laser Diode ◽  
Recent Progress ◽  
Lighting Application

scholarly journals Rapid conversion of highly porous borate glass microspheres into hydroxyapatite

2021 ◽  
Author(s):  
Md Towhidul Islam ◽  
Laura Macri-Pellizzeri ◽  
Virginie Sottile ◽  
Ifty Ahmed
Keyword(s):  
Borate Glass ◽  
Rapid Development ◽  
Glass Microspheres ◽  
Porous Hydroxyapatite ◽  
Interconnected Porosity ◽  
Highly Porous ◽  
Rapid Conversion

This paper reports on the rapid development of porous hydroxyapatite (HA) microspheres with large external pores and fully interconnected porosity.

Metallophthalocyanines as optical active dopants in borate glass

2021 ◽  
pp. 109496
Author(s):  
Barbara Popanda ◽  
Marcin Środa ◽  
Rudolf Słota ◽  
Maja Zakrzyk
Keyword(s):  
Borate Glass

scholarly journals Analysis on High-Power Seaport LED Luminaire with Uniform Light Distribution Based on Optimized Lens and Heatsink

2021 ◽  
Vol 11 (9) ◽  
pp. 4035
Author(s):  
Jinsheon Kim ◽  
Jeungmo Kang ◽  
Woojin Jang
Keyword(s):  
Light Source ◽  
High Power ◽  
Heat Dissipation ◽  
Light Emitting Diode ◽  
Light Distribution ◽  
Light Sources ◽  
Led Light ◽  
High Power Led ◽  
Distribution Requirement ◽  
Lighting Application

In the case of light-emitting diode (LED) seaport luminaires, they should be designed in consideration of glare, average illuminance, and overall uniformity. Although it is possible to implement light distribution through auxiliary devices such as reflectors, it means increasing the weight and size of the luminaire, which reduces the feasibility. Considering the special environment of seaport luminaires, which are installed at a height of 30 m or more, it is necessary to reduce the weight of the device, facilitate replacement, and secure a light source with a long life. In this paper, an optimized lens design was investigated to provide uniform light distribution to meet the requirement in the seaport lighting application. Four types of lens were designed and fabricated to verify the uniform light distribution requirement for the seaport lighting application. Using numerical analysis, we optimized the lens that provides the required minimum overall uniformity for the seaport lighting application. A theoretical analysis for the heatsink structure and shape were conducted to reduce the heat from the high-power LED light sources up to 250 W. As a result of these analyses on the heat dissipation characteristics of the high-power LED light source used in the LED seaport luminaire, the heatsink with hexagonal-shape fins shows the best heat dissipation effect. Finally, a prototype LED seaport luminaire with an optimized lens and heat sink was fabricated and tested in a real seaport environment. The light distribution characteristics of this prototype LED seaport luminaire were compared with a commercial high-pressure sodium luminaire and metal halide luminaire.

Impedance spectroscopy study of zinc oxide incorporated iron borate glass-ceramic

2021 ◽  
Author(s):  
Rajat Ramteke ◽  
Kalpana Kumari ◽  
Soumalya Bhattacharya ◽  
Sanjeev Kumar Sharma ◽  
M.R. Rahman
Keyword(s):  
Zinc Oxide ◽  
Impedance Spectroscopy ◽  
Glass Ceramic ◽  
Borate Glass ◽  
Spectroscopy Study ◽  
Iron Borate ◽  
Impedance Spectroscopy Study
Sign in / Sign up

Export Citation Format

Share Document