Designcurial features OVI in IALD Award as part of a 2019 issue. The OVI team received an Award of Excellence from the International Lighting Design Awards for their work on the Meixi Urban Helix in Changsha, China.  The project utilized concealed linear LED among other features to light the curved structure of the architectural concept.

A continuous, uniform band of light wraps around the curved structure of the Meixi Urban Helix on Lake Meixi, a natural extension of the architectural concept that merges the natural element of water with the man-made structure. The infinity theme is emphasised by keeping all other structural elements – the radiant vertical helix columns and the undulating wave structure of the bridge – dark in contrast.

The effect is achieved with concealed linear LED cove uplighting to the ramp canopy. The visual depth stems from the RGBW-capable luminaires that are adjusted to distinguish the outer ramp surface from the inner surface. All other lighting uses similar motifs and curves to emphasise helices, the flow of water and the spiralling nature of the structure itself. On the perimeter of the inner ramp, miniature marker lights guide visitors up and down the helix, while also providing sparkle. Their low-level output means they avoid disrupting the panoramic night-time views for visitors.

Radiant in-grade lines also replicate the paving pattern that begins at the centre of the helix. Concealed step lights and under-bench lighting accent the stage and steps. Miniature in-grade LED uplights highlight the edge of the vertical structural elements, generating the image of a spiralling ribbon, another fluid design element.


Meixi Urban Helix, Changsha, China

Lighting Design:

Office for Visual Interaction (OVI)


Award of Excellence

Project Info
Architect: KSP Jürgen Engel Architekten

Judges’ Verdicts
‘An excellent integration of lighting with the overall structure.’

‘The team from Office for Visual Interaction succeeded in ensuring every lighting effect truly mirrors the intent of the architects in combining water and urbanity.’

Meixi Urban Helix in China at night which features many of the lighting designs of the OVI team.

Meixi Urban Helix in China at night features many of the lighting designs of the OVI team.

Additional information about this project can be found here:

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Additional information about this award can be found here: