Title:
OPTICAL SYSTEM FOR VIRTUAL IMAGE DISPLAY DEVICE, VIRTUAL IMAGE DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY
Document Type and Number:
Japanese Patent JP2023121413
Kind Code:
A
Abstract:
To reduce the thickness of a light guide member for guiding image light.SOLUTION: An optical system for a virtual image display device includes: a light guide member that guides image light from an image display element for displaying an image; a partial reflector that transmits the image light guided in the light guide member from a first side and reflects the image light guided in the light guide member from a second side different from the first side to emit the image light to the outside: a reflector that is located at the second side different from the first side across the partial reflector and reflects the image light transmitted through the partial reflector toward the partial reflector; and an intermediate image forming portion that forms an intermediate image of the image light in the light guide member.SELECTED DRAWING: Figure 3
Inventors:
SUDO YOSHIFUMI
Application Number:
JP2022024757A
Publication Date:
August 31, 2023
Filing Date:
February 21, 2022
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G02B27/02; G02B17/08; G02B25/00; H04N5/64
Attorney, Agent or Firm:
Hiroyoshi Aoki