Invention Grant
- Patent Title: Achromatic freeform prism for near eye displays
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Application No.: US16007512Application Date: 2018-06-13
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Publication No.: US10989923B2Publication Date: 2021-04-27
- Inventor: Akash Arora , Mingwei Hsu , Gangok Lee , Zhiqiang Liu , Angus Wu , Wei Zhou
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Conley Rose, P.C.
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02C7/14 ; G02B27/42

Abstract:
A near eye display includes a main freeform prism lens and a micro-display corrector lens, where the main freeform prism lens includes a first freeform surface, a second freeform surface, and a third freeform surface, the first freeform surface refracting a light from a micro-display into a body of the main freeform prism lens, and the main freeform prism lens having an exit pupil diameter greater than 12 millimeter (mm), and a lateral color aberration of less than 4 micrometer (um)) across a diagonal field of view (FOV), where the micro-display corrector lens is positioned between the main freeform prism lens and the micro-display, the micro-display corrector lens including a first corrector lens surface and a second corrector lens surface, and each surface of the main freeform prism lens and the micro-display corrector lens comprises a surface sag.
Public/Granted literature
- US20190384061A1 Achromatic Freeform Prism for Near Eye Displays Public/Granted day:2019-12-19
Information query