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US 12,693,548 B2Granted
Prescription lenses with gradient-index liquid crystal lens and Pancharatnam-Berry phase lens
AssigneeMeta Platforms Technologies, LLC
InventorsRobin Sharma, Carl Chancy, Afsoon Jamali, Kurt Jenkins, Yang Zheng, Rongzhi Huang, Timothy Louis Wong, Evan Mark Richards
Life of this patent
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Abstract
An apparatus includes a partial reflector, a first lens, a reflective polarizer, and a second lens. The second lens includes a first part and a second part coupled to the first part with at least one optical property designed to correct a specific user's refractive error. Various other apparatuses, systems, and methods of manufacture are also disclosed.
Claims20
An apparatus comprising:
- a beamsplitter;
- a first lens;
- a reflective polarizer;
- and
- a second lens configured on an eye side with respect to the first lens, wherein the second lens comprises:
- a first part;
- a second part coupled to the first part with at least one optical property designed to correct a specific user's refractive error.
4 more elements
A system comprising:
- a head-mounted display;
- an optical stack configured to transmit images produced by the head-mounted display to an eyebox, the optical stack comprising:
- a beamsplitter;
- a first lens;
- a reflective polarizer;
- and
- a second lens configured on an eye side with respect to the first lens, wherein the second lens comprises:
- a first part;
- a second part coupled to the first part with at least one optical property designed to correct a specific user's refractive error.
6 more elements
A method of manufacture comprising:
- creating a second lens by coupling a first part to a second part, the second part having at least one optical property designed to correct a specific user's refractive error;
- and
- aligning a partial reflector, a first lens, a reflective polarizer, and the second lens to form an optical stack that results in a folded optical path when aligned with a display, wherein the second is configured on an eye side with respect to the first lens.
Dependencies are inferred from the claim text.