US 11,796,816 B2
Virtual image display apparatus
Takashi Takeda, Suwa (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Nov. 29, 2021, as Appl. No. 17/536,983.
Claims priority of application No. 2020-198142 (JP), filed on Nov. 30, 2020.
Prior Publication US 2022/0171195 A1, Jun. 2, 2022
Int. Cl. G02B 27/00 (2006.01); G02B 27/01 (2006.01); G09G 3/00 (2006.01)
CPC G02B 27/0172 (2013.01) [G09G 3/002 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0132 (2013.01); G02B 2027/0178 (2013.01); G09G 2340/0464 (2013.01); G09G 2340/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A virtual image display apparatus comprising:
a first display device configured to display a first image for a right eye;
a second display device configured to display a second image for a left eye;
an adjustment device configured to adjust a display position of the first image and a display position of the second image, wherein
the first display device and the second display device guide imaging light in a second direction intersecting a first direction in which the first display device and the second display device are aligned, and display the first image and the second image,
the adjustment device makes an adjustment to provide an overlapping area in which the first image and the second image are visually recognized in the overlapping area and an independent area in which the first image and the second image are visually recognized independently,
the adjustment device adjusts the overlapping area by shifting at least one of the display position of the first image and the display position of the second image, and
the first display device and the second display device include
a display element,
a projection optical system configured to converge the imaging light emitted from the display element,
a prism in which the imaging light emitted from the projection optical system is incident on an incident surface while being refracted, is totally reflected by an internal reflecting surface, and is emitted from an emission surface while being refracted, and
a see-through mirror configured to reflect the imaging light emitted from the prism toward a pupil position and transmit external light.