US 12,147,044 B2
Optical module and head-mounted display device
Tokito Yamaguchi, Azumino (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Feb. 25, 2022, as Appl. No. 17/681,094.
Claims priority of application No. 2021-029757 (JP), filed on Feb. 26, 2021.
Prior Publication US 2022/0276493 A1, Sep. 1, 2022
Int. Cl. G02B 27/01 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 2027/013 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An optical module comprising:
an image element that emits an image light;
a first optical member that includes a first emission portion emitting the image light from the image element;
a second optical member that includes:
an incident portion on which the image light from the first optical member is incident,
a second emission portion that emits the image light, and
a reflection portion that reflects the image light from the incident portion toward the second emission portion;
a combiner that reflects the image light from the second optical member toward a pupil position; and
a light blocking member that is supported on at least one side of a side of the incident portion of the second optical member and a side of the first emission portion of the first optical member, and that blocks a part of the image light, wherein
a portion of the incident portion of the second optical member protrudes from the light blocking member toward the first emission portion of the first optical member when viewed from a direction along a normal line of a lateral cross section that includes the first optical member, the second optical member, and the combiner.