Is VIVIFoCAL S1 Right for You? See How Adaptive Focus Works

VIVIFoCAL S1 Product Overview

From a quick glance at your phone to a closer look at the details on your workbench, everyday life rarely stays at one viewing distance. VIVIFoCAL S1 Adaptive Eyewear brings a different approach to these transitions, using distance sensing and moving-lens optics to adjust focus automatically as viewing distance changes.

Is VIVIFoCAL S1 Right for You? Discover Adaptive Focus

VIVIFoCAL S1 adaptive eyewear overview

Your Prescription. Your VIVIFoCAL S1.

Share your latest prescription so our team can confirm whether it falls within S1's supported prescription range and explore the available lens customization options.

Prescription customization is available for eligible orders within the supported range. Please refer to the current offer details for what is included with your purchase.

Core Product Feature: Adaptive Focus

Traditional bifocals and progressive lenses provide different optical powers through designated areas of the lens. VIVIFoCAL S1 takes a different approach: its optical system adjusts lens power based on measured viewing distance, rather than relying on fixed viewing zones alone. It's a new way to bring near and far tasks together in one pair of eyewear.

Demonstration of the VIVIFoCAL S1 adaptive focus mechanism

Discover more about VIVIFoCAL S1 Adaptive Eyewear on the product page.

How VIVIFoCAL S1 Works

Four systems, working together: sensing, computing, actuation, and focusing.

1. Sensing

A time-of-flight (ToF) sensor built into the bridge emits light signals and detects their reflections to measure the distance to objects ahead. These measurements provide distance data for S1's adaptive focus system.

S1 ToF distance sensing diagram

2. Computing

Using distance measurements and focus-control calculations, the microcontroller (MCU) determines the lens movement needed to reach the target optical power.

S1 microcontroller focus calculation diagram

3. Actuation

The MCU directs the motor to make the calculated adjustment. VIVIFoCAL's transmission mechanism then translates motor movement into controlled lens displacement.

S1 motor and lens actuation animation

4. Focusing

At the heart of S1 is an Alvarez optical system. By shifting two complementary lens elements relative to one another, it changes optical power to support focus adjustment across different viewing distances.

S1 Alvarez optical focus adjustment animation

From Distance Sensing to Adaptive Focus

Distance sensing, precise calculations, motor-driven movement, and dynamic optics all work together in VIVIFoCAL S1—designed to make everyday transitions between viewing distances more seamless.

VIVIFoCAL S1 adaptive eyewear in use

Discover VIVIFoCAL S1 Adaptive Eyewear. Explore the product and current reservation options.