Digital Ray Path - Lens Design Technology

Digital Ray Path

Digital Ray-Path® is a lens design technology that improves vision for the wearer through every point of the lens by implementing a realistic computerized simulation of the lens’ optical behavior when it is placed in front of the wearer’s eye. This simulation analyzes the oblique aberrations, which are optical effects that have a negative impact on the lens’ visual performance. These aberrations are evaluated at every point of the lens, taking into account the rotation of the eye and the real position of the lens.

With this information, Digital Ray-Path® is able to optimize the lens surface by compensationally correcting these undesired aberrations. As a result, Digital Ray-Path® creates a lens that provides better vision through every point of the lens. The wearer will perceive wider, more comfortable visual fields in the distance, intermediate and near vision zones.

Step 1: Eye-Lens System

Digital Ray-Path® prepares a simulation of the lens in front of the eye, taking into ac count all of the wearer’s personalization parameters. The more parameters that are measured and provided, such as tilts or back vertex distance, the more accurate the simulation will be.

Step 2: Space Object

Digital Ray-Path® uses information about the progressive design selected for the wearer to determine which areas of the lens are meant for distance, intermediate or near vision.

Step 3: Ray Tracing

Digital Ray-Path® simulates how the eye rotates to look in every direction, at various distances. For each position of the eye, it computes the oblique aberrations that would limit the visual quality through that particular point of the lens. Digital Ray-Path® uses this information to minimize these undesired aberrations point by point across the lens.

Result: A unique digital lens optimized for each individual user.

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