Invention Grant
- Patent Title: Large field of view see through head mounted display having magnified curved intermediate image
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Application No.: US16352127Application Date: 2019-03-13
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Publication No.: US11435584B2Publication Date: 2022-09-06
- Inventor: Dehua Liu , Chun Yip Wong , Kin Lung Chan
- Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
- Applicant Address: HK Shatin
- Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
- Current Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
- Current Assignee Address: HK Shatin
- Agency: Norton Rose Fulbright US LLP
- Main IPC: G02B27/00
- IPC: G02B27/00 ; G02B27/01 ; G02B27/28

Abstract:
Systems and methods providing optical structures providing a large field of view (FOV) for personal portable displays are described. An optical structure of embodiments comprises a catadioptric optical configuration configured to produce a magnified curved intermediate image, wherein the magnified curved intermediate image is furthered magnified with proper reflection angle and transmitted to viewer's eye. The catadioptric optical configuration may comprise two curved mirrors and a polarization prism. Optical structures comprising such catadioptric optical configurations may utilize relatively small sized image sources to produce a large FOV. Such optical structures are well suited for use in large FOV optical see through (OST) head-mounted displays (HMDs).
Public/Granted literature
- US20200292816A1 COMPACT OPTICAL STRUCTURE DESIGN FOR LARGE FIELD OF VIEW OPTICAL SEE THROUGH HEAD MOUNTED DISPLAY Public/Granted day:2020-09-17
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