Energy-saving approaches to solid state street lighting

Vitta, P.; Stanikūnas, Rytis; Tuzikas, Arūnas; Reklaitis, I.; Stonkus, A.; Petrulis, Andrius; Vaitkevičius, Henrikas; Žukauskas, A.

doi:10.1117/12.893250

Cited by 8 publications

(9 citation statements)

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“…The experiment was carried out within an intelligent LED-based outdoor lighting installation. 8 Six lamp posts were illuminating a section of a street passing through a moderately urbanised pinewood area of the Vilnius University campus (Figure 1). The distance between the posts was 30 m.…”

Section: Methodsmentioning

confidence: 99%

“…[1][2][3] In particular, intelligently dimmed LED-based outdoor lighting installations that track pedestrians and vehicles in real time offer substantial economic benefits. [4][5][6][7][8] Such dynamic tracking can be implemented using different dimming scenarios and luminance distributions (lighting patterns) around a traffic participant. 5,7,8 However, the approaches to the selection of dynamic lighting patterns that are advantageous in terms of subjectively evaluated lighting quality have not been established so far.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8] Such dynamic tracking can be implemented using different dimming scenarios and luminance distributions (lighting patterns) around a traffic participant. 5,7,8 However, the approaches to the selection of dynamic lighting patterns that are advantageous in terms of subjectively evaluated lighting quality have not been established so far.…”

Section: Introductionmentioning

confidence: 99%

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Subjective evaluation of luminance distribution for intelligent outdoor lighting

Viliūnas

Vaitkevičius

Stanikūnas

et al. 2013

Lighting Research & Technology

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A large number of physical dimensions and different criteria make choosing the optimal luminance distribution for outdoor lighting difficult. The optimisation becomes even more complex for light-emitting diode-based lighting installations that can be intelligently operated, providing different luminance distributions around a moving traffic participant. This study aims at establishing the main subjective factors for the assessment of the luminance distribution of an intelligent light-emitting diode-based outdoor lighting installation for pedestrians. Semantic-differential scales and Likert scales have been used to identify subjective impressions and to find the main factors for the optimisation of the control of the luminance distribution. Our results reveal two factors that need to be considered when assessing intelligent outdoor lighting installations: a major factor that is related to the subjective feeling of well-being and a minor factor that is related to the physical properties of the environment.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Subjective evaluation of luminance distribution for intelligent outdoor lighting

Viliūnas

Vaitkevičius

Stanikūnas

et al. 2013

Lighting Research & Technology

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“…Solid-state lighting technology based on lightemitting diodes (LEDs) allows for the development of intelligent street lighting systems with the dynamic changing of the photometric characteristics of luminaires and the luminance of the road surface, depending on traffic and weather conditions [1]. One of the climatic phenomena is fog.…”

Section: Introductionmentioning

confidence: 99%

“…(1)) under conditions of variable fog density. The actual light scattering coefficient equalsk = k E d*.The fog opacity can be characterized by the meteorological optical range (V met ), defined as the length of the path in the atmosphere, which is required for attenuating the luminous flux from a collimated lightsource by 95 % [3]: met 0.05 e aV     .…”

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confidence: 99%

Investigation of LED Light Attenuation in Fog

Otas

Pakėnas

Vaškys

et al. 2012

ElAEE

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Spectral Design of Phosphor-Converted LED Lighting Guided by Color Theory

Hariyani

Brgoch

2021

Inorg. Chem.

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In the race to develop new luminescent materials for the next generation of light-emitting-diode (LED)-based solid-state lighting and display applications, it is often forgotten that color theory and human perception should be some of the principal factors guiding materials design. In this Viewpoint, we explore some of the antiquated colorimetrics established originally for incandescent and fluorescent lighting and discuss how they are still widely applied in the literature today to interpret the color quality of luminescent materials, like inorganic phosphors and quantum dots, and to analyze prototype devices, despite their shortcomings. We then shift our analysis toward contemporary ideas in color theory that more accurately describe the color quality of modern LED light bulbs and flat-panel displays. Finally, the perspective examines the opportunities and challenges of applying these new concepts to guide the design of luminescent materials used in LED-based applications.

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Energy-saving approaches to solid state street lighting

Cited by 8 publications

References 0 publications

Subjective evaluation of luminance distribution for intelligent outdoor lighting

Subjective evaluation of luminance distribution for intelligent outdoor lighting

Investigation of LED Light Attenuation in Fog

Spectral Design of Phosphor-Converted LED Lighting Guided by Color Theory

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