- Patent Title: Freeform lens with integrated lightguide and method of manufacture
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Application No.: US17317105Application Date: 2021-05-11
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Publication No.: US12147039B2Publication Date: 2024-11-19
- Inventor: Ozan Cakmakci , Omar David Negrete , Yi Qin
- Applicant: GOOGLE LLC
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE LLC
- Current Assignee: GOOGLE LLC
- Current Assignee Address: US CA Mountain View
- Main IPC: G02B27/01
- IPC: G02B27/01 ; F21V8/00 ; G02C7/02 ; G02C11/00

Abstract:
A head mounted display (HMD) device and method of manufacturing the same. The HMD includes a frame housing a micro-display to project display light, a lightguide configured to receive the display light from the micro-display, and a corrective layer having a world-side surface coupled to the eye-side surface of the lightguide. The lightguide is further configured to have a world-side surface with a radius of curvature based on an ophthalmic corrective prescription and an eye-side surface having an outcoupler feature formed thereon such that the coupled lightguide and corrective layer form a lens configured to fit within the frame.
Public/Granted literature
- US20220269081A1 FREEFORM LENS WITH INTEGRATED LIGHTGUIDE AND METHOD OF MANUFACTURE Public/Granted day:2022-08-25
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