Light Leaf Päivänvaloa ohjaava säleikkö by Leijing Zhou is a highly esteemed winner of the very prestigious 2026 Pronssipalkinto A' Design Award in Rakennuskomponentit Competition Category.
PronssiRakennuskomponentit· 2026
Light Leaf Päivänvaloa ohjaava säleikkö
by Leijing Zhou
Client: Zhejiang University
Pronssipalkinto A' Design Award Winner in Rakennuskomponentit Category
Verified Award Winner
Verify Award Status for #181573The Design
About Light Leaf Päivänvaloa ohjaava säleikkö
LightLeaf on päivänvaloa ohjaava säleikköjärjestelmä koteihin, joissa on rajallisesti luonnonvaloa. Perinteiset sälekaihtimen säleet on korvattu säädettävillä valoa ohjaavilla lamelleilla, jotka keräävät ympäröivää päivänvaloa ja heijastavat sen syvemmälle huoneeseen. Lamelleissa yhdistyvät korkeaheijastuksinen yläpinta ja häikäisyä hallitseva diffusoiva alapinta. Kevyt alumiinirunko kääntösaranoineen ja asentolukituksineen mahdollistaa yksikön työntämisen ulospäin, kun päivänvaloa tarvitaan enemmän. Järjestelmä tukee modulaarista valmistusta ja kajoamatonta asennusta olemassa oleviin ikkunankarmeihin.
The Recognition
About the Pronssipalkinto A' Design Award
Light Leaf Päivänvaloa ohjaava säleikkö on Pronssipalkinnon A' Design Award -voittaja, erittäin arvostettu tunnustus, joka myönnetään erinomaisille designeille, joita luonnehtivat luovuus, nerokkuus ja oveluus. Pronssivoittajat ovat runsaan taitavia ja silmiinpistävän luovia taiteellisia tuotoksia, jotka todistavat suunnittelijoidensa laajaa kokemusta, mielikuvitusta ja kekseliäisyyttä. Light Leaf Päivänvaloa ohjaava säleikkö:n odotetaan olevan korkeassa arvossa pidetty, ihailtu ja rakastettu esine, joka on huomattavan ammattimainen ja innovatiivinen. Tämä Pronssipalkinnon A' Design Award -voittajadesign sisällyttää itseensä parhaita käytäntöjä taiteessa, tieteessä, designissa ja teknologiassa ja on erinomainen huomiollaan yksityiskohtiin. Light Leaf Päivänvaloa ohjaava säleikkö tyydyttää upeasti tarpeita, koskettaa haluja, viehättää tunteita ja vetoaa uteliaisuuteen.
Behind the Design
Press Kit
Credits, team members and technical details provided by the designer.
- Unique Properties
- LightLeaf is a daylight-redirecting louver system for living spaces with insufficient natural light. By replacing conventional blind slats with adjustable light-guiding blades, it captures ambient daylight and redirects it deeper indoors, creating soft, even illumination without daytime electricity. Designed for low-floor, north-facing, or compact residences, LightLeaf improves visual comfort and spatial quality while balancing privacy, safety, and energy efficiency.
- Dimensions & Packaging
- 900mm x 80mm x 1350mm
- Tags
- Daylight redirecting system, Light-guiding louvers, Passive daylighting, Energy-efficient housing, Urban living solutions, Non-invasive installation, Sustainable architecture, Indoor environmental quality
- Production Technology
- LightLeaf integrates a lightweight aluminum frame with pivot hinges, position locks, and adjustable louver assemblies. The dual-surface louvers combine a high-reflectance upper coating with a diffusive lower finish to enable controlled daylight redirection. The system is engineered for modular fabrication and non-invasive installation on existing window frames. Its design development referenced passive daylighting principles, facade engineering strategies, and basic optical reflection modeling to optimize light distribution efficiency and glare control.
- Design Challenge
- The main challenge was converting a conventional shading device into an effective daylighting system without adding complexity. It required balancing light redirection, glare control, privacy, and structural stability within existing window constraints. Building regulations and wind resistance were key external factors. The solution focused on simplifying the mechanism while maintaining performance and safety.
- Research
- This project is based on applied design research addressing insufficient daylight in residential spaces. The goal was to redesign a familiar window element to improve indoor light quality without electricity. Field observations of low-floor and north-facing homes were combined with simple daylight behavior studies and visual simulations. Results showed that redirecting light upward reduces glare and increases brightness deeper inside, improving comfort and energy efficiency through minimal structural intervention.
- Inspiration
- This project was inspired by the widespread issue of underlit living spaces, especially low-floor, north-facing, or obstructed residences. Observations of residents relying on temporary reflective panels and daytime artificial lighting revealed the need for a more effective and integrated solution. Drawing from passive daylighting principles, LightLeaf reimagines conventional blinds as a light-guiding system to improve indoor environmental quality without additional energy use.
- Project Duration
- The project commenced in October 2025 and was completed in January 2026.
- Operation Flow
- LightLeaf functions like a regular blind in daily use, allowing users to adjust the slats for shading and privacy. When more daylight is needed, the lock is released and the unit is gently pushed outward. By rotating the blades, incoming light is reflected upward and distributed deeper into the room. This simple transformation redirects natural light more evenly, reducing glare near the window while brightening darker areas indoors.
- Team Members
- Keyin Chen
Leijing Zhou
Qikai Tang
Yi Zhou
Rui Yao
Menghan Li
Yijun Zhao
Bingjing Fang
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