Invention Grant
- Patent Title: Dynamic draft for Fresnel lenses
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Application No.: US15264515Application Date: 2016-09-13
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Publication No.: US10025101B2Publication Date: 2018-07-17
- Inventor: Brian Wheelwright , Jacques Gollier , Melissa Geng
- Applicant: OCULUS VR, LLC
- Applicant Address: US CA Menlo Park
- Assignee: OCULUS VR, LLC
- Current Assignee: OCULUS VR, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G02B27/14
- IPC: G02B27/14 ; G02B27/01 ; G02B3/08

Abstract:
A lens includes an optically transparent substrate having a first lens surface and a second lens surface opposite to the first lens surface. The first lens surface includes a plurality of Fresnel structures. A respective Fresnel structure of the plurality of Fresnel structures includes a slope facet and a draft facet. The draft facet is characterized by a draft angle. The draft angle of the respective Fresnel structure is based on a distance of the respective Fresnel structure from a center of the lens.
Public/Granted literature
- US20180074320A1 Dynamic Draft for Fresnel Lenses Public/Granted day:2018-03-15
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