Invention Grant
- Patent Title: Optical arrangements including Fresnel lens elements
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Application No.: US16063577Application Date: 2017-03-21
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Publication No.: US10761321B2Publication Date: 2020-09-01
- Inventor: Simon Fortin-Deschênes , Ian Powell
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fernando & Partners, LLP
- International Application: PCT/CA2017/000061 WO 20170321
- International Announcement: WO2017/161437 WO 20170928
- Main IPC: G02B27/00
- IPC: G02B27/00 ; G02B3/08 ; G02B27/01 ; G02B25/00 ; G02B3/04 ; G02B27/42

Abstract:
An optical lens arrangement comprises a first Fresnel lens element and a second lens element, The first Fresnel lens element defines a flat surface side and an opposite faceted surface side defining wedge and draft faces. The flat surface side faces towards the eye of a user and the opposite faceted surface side faces away from the eye of the user. The second lens element interfaces with the faceted surface side of first Fresnel lens. The second lens element is selected from the group consisting of: a second Fresnel lens element, a singlet lens element, a doublet lens element and any combination thereof. The first Fresnel lens is proximal relative to the eye of the user and the second lens element is distal relative to the eye of the user. Head mounted devices (HMD) including these optical lens arrangements are provided. Methods of making such optical lens arrangements and HMDs are also provided.
Public/Granted literature
- US20190227305A1 Optical Arrangements Including Fresnel Lens Elements Public/Granted day:2019-07-25
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