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In Search of the Measurable, the Immeasurable and the Elusive Experience of Light
University of Arts, Crafts and Design, Department of Design, Interior Architecture and Visual Communication (DIV), Interior Architecture & Furniture Design.ORCID iD: 0000-0002-7213-3764
2026 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

Drawing on investigations into how light shapes the different layers of spatial experience, this project explores the perceptual and emotional qualities of luminous environments. The work unfolds at the intersection of lighting design practice and scientific disciplines such as perceptual psychology, sensory science and environmental psychology, and between that which can be measured and that which can only be experienced.Light quality is predominantly defined through physical metrics. The absence of established concepts and methods for describing perceived light quality means that these dimensions can neither be communicated, specified nor evaluated in a systematic way. This has consequences for how our shared light environments are shaped and for how light is understood beyond the boundaries of its own discipline.Vision provides us with visual information about the world around us, and light is a prerequisite for this process. Light, understood as radiation, can be measured and described using the tools of physics. Yet light, understood as the experience that arises when this radiation reaches the retina, is a sensory phenomenon; relative, contextual and complex. Within this process, much of the perceived atmosphere is also formed, emerging through the interplay between external conditions and subjective interpretation.The lighting designer operates within this experiential layer, where design intention establishes the framework or ground against which the viewer, occupant or user responds. The project also examines light as narrative: how its articulation relates to perceptual qualities, and how light may function as a form of wordless communication.The project began within scientific research and environmental psychology and concludes within artistic research oriented towards lighting design practice. To work deliberately within the tension between these knowledge traditions has been a guiding principle throughout. The ambition of the work is to contribute to an integrated understanding of the measurable and the immeasurable, and thereby to advance both lighting design and lighting research as fields of knowledge.

Abstract [sv]

Med utgångspunkt i undersökningar av hur ljus påverkar den rumsliga upplevelsens olika lager utforskar projektet ljusmiljöers perceptuella och emotionella kvaliteter. Arbetet rör sig i ett möte mellan ljusdesignpraktik och vetenskapliga discipliner som perceptionspsykologi, sensorik och miljöpsykologi, och mellan det som kan mätas och det som endast kan erfaras.Ljuskvalitet definieras huvudsakligen genom fysikaliska mått. Avsaknaden av etablerade begrepp och metoder för att beskriva upplevd ljuskvalitet gör att dessa dimensioner varken kan kommuniceras, specificeras eller värderas på ett systematiskt sätt, vilket får konsekvenser för hur våra gemensamma ljus­miljöer utformas och hur ljus förstås utanför den egna disciplinen.Synen ger oss den visuella informationen om världen omkring oss, och ljus är en förutsättning för denna process. Ljus i betydelsen ljusstrålning kan mätas och beskrivas med fysikens verktyg, men ljus i betydelsen den upplevelse som uppstår när ljusstrålningen träffar näthinnan är en sinnlig erfarenhet – relativ, kontextuell och komplex. I denna process formas också en stor del av den upplevda atmosfären, i samspelet mellan de yttre förutsättningarna och den subjektiva tolkningen.Ljusdesignern verkar i detta lager av upplevelse, där designintentionen skapar den ram eller fond mot vilken betraktaren, brukaren eller användaren responderar. I projektet undersöks också ljuset som narrativ – hur dess gestaltning hänger samman med de perceptuella kvaliteterna och hur ljus kan fungera som en form av ordlös kommunikation.Projektet inleddes inom vetenskaplig forskning och miljö­psykologi och avslutas inom konstnärlig forskning med inriktning mot ljusdesignpraktik. Att medvetet verka i spänningsfältet mellan dessa kunskapstraditioner har varit en bärande princip genom hela arbetet. Arbetets ambition är att bidra till en integrerad förståelse av det mätbara och det omätbara och därigenom utveckla både ljusdesign och ljusforskning som kunskapsfält.

Place, publisher, year, edition, pages
Stockholm: Konstfack, 2026. , p. 191
Series
Konstfack Dissertation Collection ; 13
Keywords [en]
Lighting design, Light perception, Spatial experience, Atmosphere, Visual perception, Perceived light quality, Semantic evaualtion, Environmental psychology, Sensory studies, Architectural lighting, Luminous environment, Artistic research
National Category
Design
Research subject
Forskningsområden, Sensorium; rumsliga perceptioner; Forskningsområden, Designdriven och gestaltande kunskapsproduktion
Identifiers
URN: urn:nbn:se:konstfack:diva-10789ISBN: 978-91-85549-76-4 (electronic)ISBN: 978-91-85549-75-7 (print)OAI: oai:DiVA.org:konstfack-10789DiVA, id: diva2:2060125
Public defence
2026-06-12, Lumafabriken, Lumaparksvägen 7, Stockholm, 13:00 (English)
Opponent
Supervisors
Funder
Swedish Energy Agency, P2023-01529Available from: 2026-05-21 Created: 2026-05-14 Last updated: 2026-05-26Bibliographically approved

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Enger, Johanna

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