Invention Grant
- Patent Title: Optical system for head-mounted display system
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Application No.: US15704813Application Date: 2017-09-14
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Publication No.: US10890694B2Publication Date: 2021-01-12
- Inventor: Joshua Mark Hudman
- Applicant: Valve Corporation
- Applicant Address: US WA Bellevue
- Assignee: Valve Corporation
- Current Assignee: Valve Corporation
- Current Assignee Address: US WA Bellevue
- Agency: Seed Intellectual Property Law Group LLP
- Main IPC: G02B13/18
- IPC: G02B13/18 ; G02B3/02 ; G02B3/08 ; G02B27/01 ; G02B3/04

Abstract:
Systems and methods for providing optical systems which utilize double Fresnel lenses on curved surfaces for use with display systems, such as silicon-based micro display systems (e.g., OLED micro displays) used with head mounted display (HMD) systems. The optical systems disclosed herein may implement multiplexing or blending to provide a smooth profile transition and reduce aberrations between zones or fields (e.g., small FOV angles, large FOV angles) of a Fresnel surface which is defined by multiple Fresnel patterns or functions. An optical system for a micro display is provided which utilizes double Fresnel lenses on curved surfaces to shorten the focal length while maintaining a good shape factor for moldability and aberration control.
Public/Granted literature
- US20180081092A1 OPTICAL SYSTEM FOR HEAD-MOUNTED DISPLAY SYSTEM Public/Granted day:2018-03-22
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