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Solar Daylighting System

Dual-axis tracking · Lens concentration · Fiber transmission — delivering the real solar spectrum to the windowless corners of a building.

Hechang solar daylighting collector with hexagonal Fresnel lens array inside a transparent dome

PRODUCT OVERVIEW

Real Sunlight, Not a Simulation

Mounted on the roof, the collector tracks the sun all day with 0.02° precision. Thirty-six hexagonal Fresnel lenses concentrate sunlight into high-purity quartz fibers, which route flexibly through floors and walls to deliver near-daylight illumination anywhere indoors.

Transmits the true solar spectrum — impossible to fully replicate with artificial light
9–18 light outlets per unit, flexibly allocated to your floor plan
Average power draw below 5 W — only the tracking drive uses electricity
Self-locking dual-axis worm drives, silent operation, lifetime warranty on core mechanisms

Exploded view: transparent dome, twin lens arrays, dual-axis gimbal and base

STRUCTURE

Engineered for Years Outdoors

The unit consists of a transparent dome, twin hexagonal lens arrays, a dual-axis tracking gimbal and a conical base. All optics and drives are sealed inside the dome, protected from wind and rain.

Transparent dome shields all optical and drive components
Twin honeycomb Fresnel arrays maximize collection area
Worm-gear dual-axis gimbal: self-locking and silent
Conical base houses the controller with an independent cooling chamber

HOW IT WORKS

A Sunbeam's Journey Indoors

Precision Tracking

The dual-axis mechanism follows the sun from dawn to dusk at 0.02° precision, running on astronomical trajectory even under clouds.

Lens Concentration

Thirty-six hexagonal Fresnel lenses in a honeycomb layout focus sunlight onto the fiber inlets.

Fiber Transmission

High-purity quartz fibers carry visible light with low loss, routing flexibly through floors and walls.

Indoor Illumination

9–18 outlets with a range of luminaire options bring near-daylight illumination deep into the home.

SPECIFICATIONS

Key Specifications

Tracking	Dual-axis closed loop; hybrid photoelectric + astronomical algorithm; auto-homing on power-up
Tracking accuracy	0.02°
Drive	Self-locking worm gears on both axes; holding current released in position — silent and cool
Lens array	36 hexagonal Fresnel lenses (PMMA optics), honeycomb layout
Transmission	High-purity quartz optical fiber, low-loss visible light transmission
Light outlets	9–18 per unit, allocated to floor plan and scene
Power draw	Below 5 W average (tracking drive only; the lighting itself uses zero energy)
Enclosure	Optical-grade PC dome, UV coating, labyrinth ventilation
Warranty	Lifetime warranty on core mechanisms

Structural line drawing of the solar daylighting collector — Structural drawing · lens array and gimbal inside the dome

* Request the technical manual for full specifications and installation requirements.

APPLICATIONS

Where Sunlight Should Reach

Basement · Home Theater

A patch of daylight without a single window — basements no longer feel like spare space.

Windowless Bathroom

Bring morning sunlight to the morning routine and transform the feel of an internal bathroom.

Green Wall · Foyer

A near-daylight spectrum supports plant growth, keeping indoor green walls thriving long-term.

SUNLIGHT & WELLBEING

Why Real Sunlight

Sleep and metabolism research published in 2025 links ample daytime natural-light exposure with more regular circadian rhythms and better sleep quality. The system transmits the real solar spectrum — something no artificial light source can fully replicate.

Note: the research above reflects correlations between natural light exposure and health indicators. This product is a lighting device and makes no medical claims.

Bring Sunlight Into Your Home

It starts with a site survey — we assess your roof and cabling routes and propose a light-outlet plan.

Book a Site Survey