Back to works

Dans le blanc des yeux: binocular portals between two distant places

A six-person capstone that turned two coin-operated-style viewing instruments into networked portals between distant parts of a city. The project asked how a familiar physical form could invite people into an unfamiliar social interaction.

Take the handles and the far unit turns to match you, so you can look around a place you are not standing in. If someone is using the other end at the same time, both heads stop and each screen switches to the camera pointed at the other person’s face. The object goes from looking outward to looking someone in the eye.

We demonstrated the working system in supervised campus and exhibition sessions.

RoleInteraction design and journey mapping; control code, and floating build and fabrication support
ContextCART 461 capstone, Concordia University, Fall 2024
TeamSix people
DurationFour months
StackRaspberry Pi 5, Arduino, Python, OSC, GStreamer, LTE/5G
OutcomeTwo working networked viewing instruments

Binoculars as portals

The placement mattered because the two units could connect very different parts of a city and invite social interactions between people who were unlikely to meet otherwise. We drew on Eduardo Kac’s telepresence art as a reference for connecting place, distance, and interaction.

the head moves

Two modes

A pressure plate tells each unit when someone is standing there. The system then shifts between looking around a place and talking to a person.

If you use the binoculars while the other unit is empty, the far unit mirrors your movements so you can look around its surroundings. A microphone and larger speaker let you call to passersby and invite them over.

When someone steps onto the other unit, both switch to interior mode. The screens show the inward-facing eye cameras, and audio moves to a smaller, quieter speaker for a more private conversation.

Mapping the handoff

We adapted the Participant Journey Map to distinguish observation from participation. The map focused our attention on the handoff between those states: when a person first notices the object, understands that another site exists, realizes another person has arrived, and decides whether to engage.

That analysis led us to make the mode change physical. The binoculars stop moving the moment both plates are loaded, so the shift from surveying a place to facing a person arrives as a change in the object rather than a notification on a screen.

The screen delivered the encounter, but the physical change made it legible.

Mast, D., de Vries, S. I., Broekens, J., & Verbeek, F. J. (2021). The Participant Journey Map: Understanding the Design of Interactive Augmented Play Spaces. Frontiers in Computer Science, 3, 674132.

the handoff, mapped

Form studies

The shape mattered. Before building, we rendered two versions into street photographs: one with the mechanism exposed and one wrapped in fabric. The final build used a shorter, pleated fabric skirt.

exposed column
fabric skirt

Building a two-site instrument

Making the concept work pulled several systems into one object: gyroscopes to track movement, pressure plates to sense presence, cameras, microphones, and speakers for the encounter, and LTE to connect the two sites.

The mechanics had to keep up. A slip ring let each head rotate without twisting its cables, while separate motor power kept movement from interrupting the computer mid-stream.

gimbal detail
full assembly
the plywood MVP
pressure / kinetic system

People knew what to do

We demonstrated the prototype on campus and at an exhibition. People recognized the binocular form, took the handles, and began exploring without instructions.

The familiar form gave people a clear first move, even though the experience that followed was new.

in the room

Team and contributions

Alexander Terziyski

Server coding for video and audio feed

Lucien Cusson-Fradet

Physical design, mechanics, electronics, wiring, and assembly

Maxime-Alexandre Gosselin

Physical design, mechanics, electronics, wiring, and assembly

Michael Hemingway

Industrial design, 3D modelling and printing, fabrication, floating build and code support

Shayne La Rocque

Interaction design, journey mapping, floating build and code support

Thomas Rompré

Server coding for video and audio feed