Guide
Heliostat & daylighting guide
Plain-English answers about moving real sunlight into the places architecture forgot — dark rooms, north-facing spaces and shaded terraces. Start here.
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What is a heliostat?
How a sun-tracking mirror works, and how it differs from solar panels and light tubes.
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How to get natural light into a north-facing room
Every option for brightening a dark room — from paint and mirrors to skylights and heliostats.
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Heliostat vs. Solatube vs. sun tunnels
Cost, installation, flexibility and winter performance compared — which daylighting fits your home.
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How to bring sunlight to a shaded terrace or garden
Reclaim an outdoor seat the buildings and trees have shaded — automatically, all afternoon.
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No camera, no cloud: how a sun-tracking mirror stays private
How glare protection by geometry and one-time phone AR deliver privacy — with zero cameras.
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Why your home office needs real sunlight, not just bright light
Bright is not biologically effective. Here's why spectrum matters for focus, alertness and sleep.
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Why houseplants struggle under grow lights — and what actually works
Green, UV, far-red — what grow lights miss, and why the complete solar spectrum is still the gold standard.
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Why your morning light sets your sleep quality tonight
The cortisol awakening response, the suprachiasmatic nucleus, and why your ceiling lamp isn't enough.
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Magic in the Night – How the ohoya Heliostat Tracks the Moon
How the heliostat uses astronomical algorithms to follow the moon and direct its soft, silvery glow exactly where you want it.
Bring real sunlight where you miss it
The ohoya Heliostat is in its founder pre-launch. Reserve your place from €49 — fully creditable toward the price, refundable any time.