Influence of spectral power distribution on scene brightness at different light levels

• Exterior lighting has multiple objectives. Brightness perception is a relevant parameter for outdoor lighting because it is correlated with perceptions of safety and security. Understanding the influence of the spectral characteristics of lighting to scene brightness perception is important in order to devise exterior lighting specifications that support perceptions of safety and security in exterior lighted environments, as well as to optimize light source technologies to account for these factors. A study of scene brightness perception under different light levels and spectral power distributions was conducted to assess whether scene brightness perception exhibited increased short-wavelength spectral sensitivity as a function of increasing light level. The results confirm that a successful model of spectral sensitivity for scene brightness perception should incorporate a shift in short-wavelength sensitivity like the one investigated in the present study.

Ämnesord

SAMHÄLLSVETENSKAP  -- Psykologi -- Psykologi (hsv//swe)

SOCIAL SCIENCES  -- Psychology -- Psychology (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Arkitekturteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Architectural Engineering (hsv//eng)

HUMANIORA  -- Konst -- Design (hsv//swe)

HUMANITIES  -- Arts -- Design (hsv//eng)

HUMANIORA  -- Konst -- Arkitektur (hsv//swe)

HUMANITIES  -- Arts -- Architecture (hsv//eng)

Nyckelord

Brightness

Exterior lighting

Mesopic photometry

SPD

Spectral sensitivity

Light sources

Spectroscopy

Brightness perception

Safety and securities

Spectral characteristics

Spectral power distribution

Luminance

Arkitektonisk gestaltning

Architectural Design

Architectural Technology

Arkitekturteknik

Publikations- och innehållstyp

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