Title:
LENS UNIT AND LAMINATE FILM
Document Type and Number:
WIPO Patent Application WO/2023/176658
Kind Code:
A1
Abstract:
Provided is a lens unit that can make VR goggles lightweight and improve visibility. A lens unit according to an embodiment of the present invention is used in a display system for displaying an image to a user, and comprises: a reflective polarizing member that reflects light that has been emitted forward from a display surface of a display element representing an image and transmitted through a polarizing member and a first λ/4 member; a first lens unit disposed on the optical path between the display element and the reflective polarizing member; a half-mirror that is disposed between the display element and the first lens unit, transmits light emitted from the display element, and reflects light reflected by the reflective polarizing member toward the reflective polarizing member; a second lens unit disposed in front of the reflective polarizing member; a second λ/4 member disposed on the optical path between the half-mirror and the reflective polarizing member; and a protective member disposed on the optical path between the half-mirror and the second lens unit, wherein the protective member is in contact with a space formed between the protective member and at least one among the first lens unit and the second lens unit, and the protective member has a maximum value of the 30° positive reflectance spectrum in the wavelength range of 420-680 nm of 1.4% or lower.
Inventors:
KOJIMA TADASHI (JP)
GOTO SHUSAKU (JP)
GOTO SHUSAKU (JP)
Application Number:
PCT/JP2023/008965
Publication Date:
September 21, 2023
Filing Date:
March 09, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B27/02; G02B17/08; G09F9/00; H04N5/64; H04N13/344; H04N13/346
Domestic Patent References:
| WO2021145446A1 | 2021-07-22 |
Foreign References:
| JP2019526075A | 2019-09-12 | |||
| JP2012215790A | 2012-11-08 | |||
| JP2013025318A | 2013-02-04 | |||
| JP2020507123A | 2020-03-05 | |||
| JP2015106105A | 2015-06-08 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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