Transparent cube corner array manufacturing process for head-up display applications
2021
We introduce an original approach for an extended Head Up Display solution. This configuration is based on the projection of images directly on the windshield of a vehicle, allowing the display of various information around the user viewing axis, as a peripheral dashboard. We highlight that this solution is only effective if we can manage both directivity and diffusivity of the reflected light. We introduce for that purpose two technological options. A pragmatic one allows us to evaluate at short term the HUD behavior. Another proposes an original approach with a manufacturing process based on the etching of a deep cube corner cavity in a composite silicon wafer that incorporates a diffuser surface. We demonstrate both technological options and give some perspectives for future works.
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