Big Island Cities at Night

International Astronomical Union Colloquium ◽

10.1017/s0252921100003791 ◽

1991 ◽

Vol 112 ◽

pp. 98-98

Author(s):

David Westpfahl

Keyword(s):

Street Lighting ◽

Moonless Night

ABSTRACTPhotographs taken during a clear, moonless night from the walkway of the dome of the Canada-France-Hawaii Telescope on Mauna Kea show light trespass from street lighting in Hilo and in Waimea and the sky glow from the growing area around Kona. More full cut-off fixtures would help to prevent deterioration of the quality of the Mauna Kea site.

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The LEDs luminance distribution measurement quality dependency on image focusing

Photonics Letters of Poland ◽

10.4302/plp.v12i4.1077 ◽

2020 ◽

Vol 12 (4) ◽

pp. 121

Author(s):

Dariusz Czyżewski

Keyword(s):

North America ◽

Street Lighting ◽

Distribution Measurement ◽

Luminance Distribution ◽

Fluorescent Lamps ◽

Engineering Society ◽

Ccd Array ◽

Testing Techniques ◽

Color Rendering

Luminance measurements are used in a vast range of lighting technology fields. The author’s research has proved that measuring the luminance distribution on light source surface is the most challenging part of this process. The research has been conducted for a commercially available digital luminance distribution meter, with the goal of analyzing the influence of image focus settings and exposure parameters on the measured luminance values. It has been concluded that the incorrect image focus and inadequately matched exposure parameters (distance from the workpiece) contribute to quantitative changes in the information on luminance distribution on the LED surface and affect the precision the maximum luminance determination. Full Text: PDF ReferencesC. Xu, H. Cheng, and Y. Feng, "Optical design of rectangular illumination with freeform lenses for the application of LED road lighting," Frontiers of Optoelectronics, 2017, CrossRef D. Czyzewski, "LED substitutes of conventional incandescent lamps," Przeglad Elektrotechniczny, vol. 88, no. 11A, pp. 123-127, 2012. DirectLink W. R. Ryckaert, K. A. G. Smet, I. A. A. Roelandts, M. Van Gils, and P. Hanselaer, "Linear LED tubes versus fluorescent lamps: An evaluation," Energy and Buildings, 2012, CrossRef X.-H. Lee, I. Moreno, and C.-C. Sun, "High-performance LED street lighting using microlens arrays," Optics Express, 2013, CrossRef D. Czyzewski, "The street lighting luminaires with LEDs," Przeglad Elektrotechniczny, vol. 86, pp. 276-279, 2009. DirectLink D. Mozyrska, M. Wyrwas, and I. Fryc, "The determination of the LEDs colorimetric parameters, in the range of their operating temperature," Przeglad Elektrotechniczny, vol. 93, no. 4a, pp. 232-234, 2012. DirectLink J. Kowalska and I. Fryc, "Colour rendition quality of typical fluorescent lamps determined by CIE colour fidelity index and colour rendering index," Przeglad Elektrotechniczny, vol. 95, no. 7, pp. 94--97, 2019, CrossRef J. Kowalska, "Analysis of parameters describing the quality of the color rendering of light sources according to the IES TM-30-15 and the CIE 013.3-1995," Przeglad Elektrotechniczny, vol. 93, no. 6, pp. 50--54, 2017, CrossRef K. Houser, M. Mossman, K. Smet, and L. Whitehead, "Tutorial: Color Rendering and Its Applications in Lighting," LEUKOS - Journal of Illuminating Engineering Society of North America, vol. 12, no. 1-2, pp. 7-26, 2016, CrossRef S. Słomiński, "Identifying problems with luminaire luminance measurements for discomfort glare analysis," Lighting Research and Technology, 2016, CrossRef D. Czyzewski, "Investigation of COB LED luminance distribution," 2016, CrossRef M. Jongewaard, "Guide to selecting the appropriate type of light source model," in Proc.SPIE, Aug. 2002, vol. 4775, CrossRef D. Czyzewski, "Selected problems of defining the luminous area of electroluminescent diodes," Przeglad Elektrotechniczny, vol. R. 84, nr 8, pp. 125-128, 2008. DirectLink C. D. Galatanu, "Improving the Luminance Measurement from Digital Images," in 2019 International Conference on Electromechanical and Energy Systems (SIELMEN), 2019, pp. 1-4. CrossRef I. Fryc and E. Czech, "Application of optical fibers and CCD array for measurement of luminance distribution," in Proc. SPIE 5064, Lightmetry 2002: Metrology and Testing Techniques Using Light, 2003, pp. 18-21, CrossRef I. Fryc and E. Czech, "Spectral correction of the measurement CCD array," Optical Engineering, 2002, CrossRef I. Fryc, "Angular characteristics of a silicon detector spectral sensitivity corrected by an absorption filter," in Proc. SPIE 4517, Lightmetry: Metrology, Spectroscopy, and Testing Techniques Using Light, 2001, pp. 42-45, CrossRef I. Fryc, "Accuracy of spectral correction of a CCD array for luminance distribution measurement," in Proc. SPIE 5064, Lightmetry 2002: Metrology and Testing Techniques Using Light, 2003, pp. 38-42, CrossRef M. Moeck and S. Anaokar, "Illuminance analysis from high dynamic range images," LEUKOS - Journal of Illuminating Engineering Society of North America, pp. 211-228, 2006, CrossRef D. Czyżewski, "Research on luminance distributions of chip-on-board light-emitting diodes," Crystals, 2019, CrossRef

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Sistema de Iluminação Publica Inteligente

10.14210/cotb.v11n1.p014-016 ◽

2020 ◽

Author(s):

Fábio Rodrigues de la Rocha

Keyword(s):

Quality Of Life ◽

Smart Cities ◽

Low Cost ◽

Research Work ◽

Sustainable Growth ◽

Street Lighting ◽

Rational Use

Public street lighting management is a well known problemwhich can be revisited from the perspective of Smart Cities.In Smart Cities there is an interconnection of services andinfrastructure to provide sustainable growth and improvementsin citizens’ quality of life. In this research work, weexplore new low cost technologies to create a smart streetlight system capable of monitoring and controlling the lamps,thus reducing the costs with maintenance and allowing amore rational use of electricity.

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LED Street Lighting: A Looking Ahead Perspective

Green ◽

10.1515/green-2015-0020 ◽

2015 ◽

Vol 5 (1-6) ◽

Cited By ~ 3

Author(s):

Rosaria Ciriminna ◽

Lorenzo Albanese ◽

Francesco Meneguzzo ◽

Mario Pagliaro

Keyword(s):

Carbon Dioxide Emissions ◽

Common Pathway ◽

Street Lighting ◽

Light Emitting ◽

Global Impact ◽

Remote Areas ◽

Quality Principles ◽

The Common ◽

Reduce Carbon Dioxide

AbstractProvided that LED street lighting is guided by quality principles, outdoor illumination using light-emitting diodes will have a significant global impact helping to reduce carbon dioxide emissions, save relevant amounts of electricity and enhance the quality of life in cities as well as in remote areas. This study summarizes recent findings providing guidelines for further progress in this crucially important technology on the common pathway to sustainable development.

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The quality of street lighting installations under changing weather conditions

Lighting Research & Technology ◽

10.1177/096032717200400204 ◽

1972 ◽

Vol 4 (2) ◽

pp. 90-96 ◽

Cited By ~ 3

Author(s):

E. Frederiksen ◽

J. Gudum

Keyword(s):

Weather Conditions ◽

Street Lighting

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Surface Quality of the Materials used for Lighting Columns

Quality Production Improvement - QPI ◽

10.2478/cqpi-2019-0057 ◽

2019 ◽

Vol 1 (1) ◽

pp. 417-424

Author(s):

Agata Dudek ◽

Andrii Goroshko

Keyword(s):

Surface Quality ◽

Manufacturing Process ◽

Weather Conditions ◽

Electrical Safety ◽

Light Weight ◽

Street Lighting ◽

Maintenance Costs ◽

Road Users ◽

Materials Used

Abstract Quality of the lighting columns plays a major role in the comfort and safety of life of road users. The surface quality of the materials used in the columns is especially critical during extreme weather conditions. Road infrastructure, including street lighting, uses modern lightweight materials from the group of non-ferrous materials or composites. The materials used in the manufacturing process ensure important advantages, such as durability, electrical safety, aesthetic qualities, low maintenance costs, light weight, and easy transport and assemble. This paper presents an analysis of the quality of coatings used for street lighting columns.

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Effects of street lighting technologies on the success and quality of pollination in a nocturnally pollinated plant

Ecosphere ◽

10.1002/ecs2.2550 ◽

2019 ◽

Vol 10 (1) ◽

Cited By ~ 17

Author(s):

Callum J. Macgregor ◽

Michael J. O. Pocock ◽

Richard Fox ◽

Darren M. Evans

Keyword(s):

Street Lighting

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PUBLIC COMPLAINT HANDLING SERVICES ABOUT PUBLIC STREET LIGHTING AT THE DINAS KEBERSIHAN RUANG TERBUKA HIJAU SURABAYA CITY

DIA Jurnal Ilmiah Administrasi Publik ◽

10.30996/dia.v19i1.5146 ◽

2021 ◽

Vol 19 (1) ◽

pp. 275-289

Author(s):

Johan Vivaldi Alex Sander ◽

Ananta Prathama

Keyword(s):

Open Space ◽

City Government ◽

Street Lighting ◽

The Public ◽

Complaint Handling ◽

Institutional Aspect ◽

The Government ◽

Media Channels ◽

The City

Complaints are an important factor to assist the government in improving the quality of public services. During 2016-2020 in the City Government of Surabaya, the Green Open Space Cleaning Service was ranked as the top 5 Regional Apparatus Organization that received a lot of complaints. The highest complaint was related to public street lighting in the city of Surabaya. The purpose of this study was to determine the service for handling complaints about public street lighting(PJU) at the Dinas Kebersihan Ruang Terbuka Hijau (DKRTH) Surabaya City. This research uses qualitative methods with qualitative data analysis techniques. The results showed that the complaint handling service of the Dinas Kebersihan Ruang Terbuka Hijau (DKRTH) was based on the Peraturan Daerah No. 4 Tahun 2014 Pasal 38 Ayat 2 concerning the Complaint Handling System, namely: 1). In the institutional aspect, there are a series of work rules, allowed and prohibited actions in handling complaints, and information provided to the public. 2). Procedural aspects, response when receiving complaints and follow-up complaints. 3). Integrative, available channels between officers and available media channels for the public. 4). Comprehensive in nature, examines the type and nature of complaints.

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