Optical layers for fresnel surfaces

An optical element includes a Fresnel surface including valleys between Fresnel segments. Compensation trenches disposed in the valleys are configured to accept excess of an optical layer received in the valleys during a deposition of the optical layer. The compensation trenches are filled with the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jenkins, Kurt Allen, Richards, Evan M
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An optical element includes a Fresnel surface including valleys between Fresnel segments. Compensation trenches disposed in the valleys are configured to accept excess of an optical layer received in the valleys during a deposition of the optical layer. The compensation trenches are filled with the optical layer.