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US 12,619,012 B2Granted
Optical device and injection molding method for producing same
AssigneesFEV Group GmbH, UPT-Optik Wodak GmbH
InventorsSteffen Jentsch, Martin Mueller, Horst Wodak, Martin Rümmelein
Life of this patent
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Abstract
An optical device includes: a transparent substrate and a coherent transparent layer enclosing the substrate in at least three places, which: forms a plurality of first optical lenses on a first surface and forms a plurality of second optical lenses on a second surface of the substrate arranged opposite the first surface, the transparent layer having a predetermined thickness. A method of manufacturing the optical device is also provided.
Claims11
An optical device comprising:
- a transparent substrate;
- a coherent transparent layer enclosing the substrate in at least three places, which forms a plurality of first optical lenses on a first surface and forms a plurality of second optical lenses on a second surface arranged opposite the first surface of the substrate, the transparent layer having a predetermined thickness;
- and
- an image-bearing layer arranged between the substrate and at least one lens-forming portion of the transparent layer.
1 more element
A method of manufacturing an optical device, comprising the steps of:
- S1:
- applying an image-bearing layer to a transparent substrate;
- S2:
- positioning the substrate in an injection mold;
- and
- S3:
- injection molding of a layer-forming material into the injection mold, so that the layer-forming material, by solidifying, forms a coherent transparent layer which encloses the substrate on at least three sides and which forms a plurality of first optical lenses on a first surface and which forms a plurality of second optical lenses on a second surface arranged on a side of the substrate opposite to the first surface.
4 more elements
Dependencies are inferred from the claim text.