Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HEAD-MOUNTED DISPLAY AND VIRTUAL IMAGE FORMATION LENS USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/149628
Kind Code:
A1
Abstract:
Provided is a head-mounted display that can expand a range in which a user can clearly view an image. The head-mounted display 1 comprises: a display device 3 that displays left-eye and right-eye images 3a, 3b on a screen 3c; and left-eye and right-eye virtual image-forming optical systems 4a, 4b respectively arranged for the left-eye and right-eye images 3a, 3b on the screen 3c, wherein the virtual image-forming optical systems 4a, 4b have power adjustment regions 55 in which a positive power is set in each region through which a user's visual line passes, and a power which is closer to a minus side than an optical center is set on the outside of the optical center in a direction orthogonal to an optical axis.

Inventors:
MIYAJIMA YASUSHI (JP)
TAKAKI YASUHIRO (JP)
Application Number:
PCT/JP2021/001443
Publication Date:
July 29, 2021
Filing Date:
January 18, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NATIONAL UNIV CORPORATION TOKYO UNIV OF AGRICULTURE AND TECHNOLOGY (JP)
ITOH OPTICAL IND (JP)
International Classes:
G02B27/02; G02B13/00; G02B13/18; G02B30/00; H04N5/64; H04N13/344; H04N13/346
Domestic Patent References:
WO2013076994A12013-05-30
WO2020008804A12020-01-09
WO1996018126A11996-06-13
Foreign References:
DE102014107938A12015-12-17
CN109407301A2019-03-01
JP2018084788A2018-05-31
Attorney, Agent or Firm:
IIDA, Akio et al. (JP)
Download PDF: