Invention Grant
- Patent Title: Exit pupil expanders with wide field-of-view
- Patent Title (中): 退出具有广泛视野的学生扩张器
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Application No.: US12745793Application Date: 2007-12-18
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Publication No.: US08508848B2Publication Date: 2013-08-13
- Inventor: Pasi Saarikko
- Applicant: Pasi Saarikko
- Applicant Address: FI Espoo
- Assignee: Nokia Corporation
- Current Assignee: Nokia Corporation
- Current Assignee Address: FI Espoo
- Agency: Harrington & Smith
- International Application: PCT/IB2007/003960 WO 20071218
- International Announcement: WO2009/077802 WO 20090625
- Main IPC: G02B5/18
- IPC: G02B5/18

Abstract:
The specification and drawings present a new apparatus and method for providing a wide field-of-view as well as illumination uniformity in exit pupil expanders (EPE) using stacked EPE substrates (or plates) with non-symmetric exit pupil expansion that use a plurality of diffractive elements for expanding the exit pupil of a display for viewing.
Public/Granted literature
- US20100296163A1 Exit Pupil Expanders with Wide Field-of-View Public/Granted day:2010-11-25
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