HEAD-MOUNTED DISPLAY AND VIRTUAL IMAGE FORMATION LENS USING SAME - NATIONAL UNIV CORPORATION TOKYO UNIV OF AGRICULTURE AND TECHNOLOGY

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:

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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:

WO2013076994A1	2013-05-30
WO2020008804A1	2020-01-09
WO1996018126A1	1996-06-13
WO2015137165A1	2015-09-17

Foreign References:

DE102014107938A1	2015-12-17
CN109407301A	2019-03-01
JP2018084788A	2018-05-31

Other References: