DEVICE FOR DISTRIBUTED LIGHT PROJECTION

DE602021049049T2Active Publication Date: 2026-03-04COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-01-12
Publication Date
2026-03-04

AI Technical Summary

Technical Problem

Existing optical devices struggle with non-uniform light extraction across the surface of waveguides, leading to inconsistent image quality, and there is a need for variable light extraction coefficients along the guide to enhance image projection.

Method used

A distributed light projection device with multiple extraction cells along waveguides, each having different extraction coefficients, controlled by diffraction gratings with adjustable phase shifts to achieve a predefined intensity profile.

Benefits of technology

Enables precise control of light intensity distribution, improving image quality and uniformity across the projection surface.

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