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Related Experiment Video

Updated: Feb 24, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

Published on: September 21, 2017

Build Your Own Equiluminance Helmet.

Salammbo Connolly¹, Denis Connolly², Anne Cleary²

¹Lycée Paul Claudel d'Hulst, Paris, France.

|August 25, 2017

Summary

This summary is machine-generated.

A new wearable helmet isolates S cones to study vision at equiluminance. This portable device effectively replicates the findings of larger, more complex setups for vision research.

Keywords:

Colour contours/surfaces face perception light lightness/brightness object recognition optic flow perception temporal processing time perception

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Area of Science:

Vision science
Ophthalmology
Human perception

Background:

Studying color vision requires isolating specific cone photoreceptors.
Equiluminance, where perceived brightness is equal across different colors, is crucial for understanding color perception.
Existing S cone isolating techniques are often large and cumbersome.

Purpose of the Study:

To develop a wearable S cone isolating device.
To explore human vision at equiluminance using a portable method.
To assess the efficacy of a helmet-based S cone isolation technique.

Main Methods:

Construction of a wearable helmet incorporating S cone isolating technology.
Field testing in various environments (parks, streets) while wearing the helmet.
Qualitative assessment of the helmet's performance against established methods.

Main Results:

The wearable helmet successfully isolated S cones.
The device allowed for exploration of vision at equiluminance in real-world settings.
The helmet demonstrated properties consistent with larger, less portable versions.

Conclusions:

A wearable S cone isolating helmet is feasible for vision research.
This portable device offers a practical approach to studying equiluminance.
The findings support the potential of the helmet for broader applications in vision science.