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US 2025/0028173 A1Published application
Transparent cover window for use in a near infrared sensing device
AssigneeGoogle Inc.
InventorsSaeid Rezaei, Daniel Corbalan, Andrew Logan, Jiwon Yang, Han Zhang
Life of this patent
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Abstract
A cover is described for use in protecting near infrared sensors mounted to an augmented reality headset. Manufacturing the cover includes a polycarbonate injection molding process followed by a multi-coating deposition process. Contours of the sensor apparatus can be masked prior to the deposition to improve yield.
Claims20
A method, comprising:
- forming a molded plastic substrate having a film-in-mold layer on an internal surface thereof;
- and
- forming a stack of coatings on a portion of an external surface of the molded plastic substrate, the stack of coatings including at least one of a hard coating, an anti-reflective (AR) coating, or an anti-smudge (AS) coating.
An apparatus, comprising:
- a molded plastic substrate having a first surface and a second surface;
- a molding film attached to the first surface of the molded plastic substrate;
- and
- a stack of coatings formed on the second surface, the stack of coatings including:
- a hard coating in contact with the second surface of the molded plastic substrate;
- an AR coating in contact with the hard coating;
- and
- an AS coating in contact with the AR coating.
5 more elements
An apparatus comprising:
- a lens;
- a frame surrounding the lens;
- a light sensor mounted to the frame;
- a multi-layer cover over the light sensor;
- and
- a user-controlled switch configured to activate the multi-layer cover.
3 more elements
Dependencies are inferred from the claim text.