Authors propose approach for elimination of the aberrations and enlarging of the eye-box in the augmented reality (AR) wearable devices, based on point-to-point holographic optical element (HOE) lens combiner. This approach is based on the double-pass light propagation through the HOE. The compact design and experimental results are presented. Proposed approach allows archiving balance between compactness and virtual image parameters in AR glasses.
Simple and cost-effective immersion method for freeform optical surface (FFS) measurements is proposed. Method is based on the determination of the borderline curve formed between the contacted immersion liquid and the controlled surface. Proposed method is suitable for measuring polished and rough surfaces, convex and concave freeform, aspheric, spherical surfaces, prisms and another optical and non-optical 3D objects having freeform surface.
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