TOURNESOL

Concept in development

MIRROR MOTORISATION.
SOLAR TRACKER.

Tournesol follows the sun and sends its light exactly where you want it: onto a fixed target, or one that moves. Two axes driven over DMX, target accuracy 5 cm at 500 m. Ultra-compact — motors, DMX board and connectors sit inside a 102 × 75 mm cage, with no rack and no remote box. Wind-resistant — the aim holds in a steady 30 km/h. It carries a mirror up to 50 × 50 cm, a Lightbridge CRLS for instance.

Tournesol mounted on its pan and tilt mechanism

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TOURNESOL V0

Tournesol orientation
13:00
EQUINOX
-35°
152°

Local preview of the movement, no DMX output.

Discover

COMPOSITION / EXPLODED VIEW

AN ULTRA-COMPACT
DESIGN.

Everything sits inside a 102 × 75 mm cage: both motors, the DMX board, the connectors and the signal path. No rack, no remote electronics. The panel lifts off to reach the boards, and the slip ring lets Tournesol turn without ever twisting a cable. Open the section view to look inside.

One part stays outside, and only if you run Tournesol on battery: the dual V-Mount charger, which sits at the base or on the rig and reaches the machine through a single 4-pin XLR cable. On mains, there is nothing but Tournesol.

The mirror holds its aim in a steady 30 km/h wind: the structure takes the load without the beam drifting off its target.

Hard-wearing materials and a build meant to take transport, repeated installs and extended use.

  • HARD-WEARING MATERIALS
  • DURABLE BUILD
  • HEAVY USE

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01 · CIRCLIP — Axial retention of the pan shaft under the cage.

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Geometry taken from the Tournesol V1 STEP file. Local preview, no DMX output.

SUN AND PERSON
TRACKING.
IN REAL TIME.

Tournesol never relies on a single measurement. Its GPS position, the time and date, the sun position derived from them, the onboard solar sensor and the target GPS are cross-checked continuously: every source confirms the others, and the aim stays true even when one of them drops out. The same computation follows the sun’s course or a moving person, for bounced light, effects and interactive installations.

Fusion of the Tournesol aiming sources Five sources — Tournesol GPS, time and date, sun position, solar sensor and target GPS — converge into a fusion step that produces a pan and tilt position. TOURNESOL GPS TIME + DATE SUN POSITION SOLAR SENSOR TARGET GPS FUSION

Drag either marker, or use the arrow keys.

Tournesol reflection simulator The sun travels 180 degrees from east to west. Both the sun and the target can be moved. Tournesol re-aims to keep the reflection between them. SUN TARGET TOURNESOL EAST WEST 180°
INCIDENCE
00.0°
REFLECTION
00.0°
ERROR
0.0°
STATE
SOLAR COURSE

MAINS
OR BATTERY.

The format stays built around the two motors. The ballast is an Anton Bauer VM2 dual V-Mount charger: two V-Lock batteries and a 4-pin XLR DC output, the very connector Tournesol takes for power. A battery can be swapped without interrupting the movement, and mains power remains available for permanent installations.

Anton Bauer VM2 dual V-Mount charger One V-Lock battery mounts on each face; either can be swapped while the other keeps powering Tournesol through the 4-pin XLR output. VM2 LR V-LOCK V-LOCK DC OUT · 4-PIN XLR TOURNESOL
BALLAST · ANTON BAUER VM2 — hot swap

CONNECTIVITY / THREE WAYS IN

CONTROLLABLE.
ANYWHERE.

Tournesol V0 is driven from a smartphone over Wi-Fi, from a lighting desk over wired DMX or CRMX, or directly through its USB port.

  1. 01 / MOBILE APPWI-FI
  2. 02 / LIGHTING DESKWIRED DMX + CRMX
  3. 03 / USB PORTSETUP + MAINTENANCE
TOURNESOL

PARTNER / LUMINATOR

A DEDICATED INTERFACE.

Luminator is a Tournesol partner. The app ships a dedicated interface on iPad and iPhone: 3D view of the mechanism, pan / tilt pad, degree-accurate sliders and MIDI assignment. It connects over Wi-Fi, or over wired DMX and CRMX.

Wi-Fi control of Tournesol is free in Luminator, with no licence and no subscription — where DMX control of other sources is paid.

  • BUILT-IN DMX PROFILE
  • 8-BIT OR 16-BIT
  • WI-FI · DMX · CRMX
Range of Lightbridge CRLS precision reflectors Lightbridge CRLS / PRECISION REFLECTOR / 50 · 25 · C100

LIGHTBRIDGE CRLS
COMPATIBLE.

Tournesol V0 is compatible with the CRLS 50 and 25 range. The reflector mounts on the tilt frame, in line with the spigot, with no intermediate adapter.

A Tournesol 1 × 1 version is planned to carry the C100. Final compatibility will depend on the mechanical configuration chosen and on prototype validation.

TOURNESOL / TEAM

TWO PEOPLE.
ONE PROTOTYPE.

Tournesol is built by two film technicians, on their own time and with their own machines. Each one holds half of the project.

  1. 01

    HADRIEN MARTIN

    MECHANICAL DESIGN

    He draws and builds the machine: chassis, motorisation, wind resistance, stand mounting. Fifteen years on set tell him what breaks outdoors and what has to be adjustable one-handed, gloved, in the dark.

    KEY GRIP

  2. 02

    CÔME NOLO

    SOFTWARE AND OUTREACH

    He writes the aiming solver, the DMX profile and the interface that drives Tournesol from Luminator. He also carries the project to rental houses, crews and trade shows.

    GAFFER

PRICE / ESTIMATE

ESTIMATED PRICE
AT LAUNCH.

A launch estimate, not a firm quote: it depends on prototype validation and on production volumes.

TOURNESOL V0 · MOTORISATION ONLY

$3,850EXCL. TAX

€3,500 excl. VAT — indicative conversion

  • Two-axis motorisation — pan 360°, tilt 200°
  • Mount for mirrors up to 50 × 50 cm
  • Built-in DMX board, 8 or 16 bit profile
  • Wi-Fi, wired DMX and CRMX
  • Dedicated interface in Luminator

Mirror not included: Tournesol takes a Lightbridge CRLS up to 50 × 50 cm, ordered separately. Excludes the dual V-Mount charger, optional for battery operation.

ROADMAP

TARGET
MICRO SALON 2027.

MICRO SALON AFC 2027

DATES
25 – 26 FÉVRIER 2027
VENUE
PARC FLORAL DE PARIS
ATTENDANCE
SUBJECT TO VALIDATION

Tournesol is aiming for a first public appearance at Micro Salon AFC 2027, on 25 and 26 February at the Parc Floral in Paris. The showing remains subject to prototype validation and to the event schedule.

A DOMESTIC USE.

A domestic use follows the same principle. Tournesol is aimed at an accessible version, set in a garden, on a terrace or on a roof, that follows the sun all year to send its light onto a façade, a room the winter leaves in shade, or a corner of the garden the sun never reaches.

Contact the makers

Set, exterior, installation or garden: tell us what you want to light, and we answer directly.

Your message and address are used only to reply to you. Nothing is passed to third parties.

Tournesol 1 × 1 V1 on a Lightbridge C100 reflector Two units motorise a C100: one on the yoke axis for tilt, one at the base of the stand for pan. LIGHTBRIDGE C100 TILT PAN TOURNESOL 1 × 1
Tournesol 1 × 1 V1 — one unit on the yoke axis, one at the base of the stand.