Optical module and head-mounted display apparatus

An optical module comprising:

• an image element that emits an image light;
• a first reflection member that includes:
• an incident portion on which the image light is incident,
• an emission portion that emits the image light, and
• a reflection portion that reflects the image light from the incident portion toward the emission portion;
• a second reflection member that reflects the image light from the first reflection member toward a pupil position;
• a rear optical member disposed between the first reflection member and the second reflection member in the optical path of the image light;
• a front optical member disposed between the image element and the first reflection member in the optical path of the image light;
• and
• a supporting member that is disposed between the first reflection member and the second reflection member in an optical path of the image light, wherein the supporting member includes:
• a first limiting portion,
• a second limiting portion facing the first limiting portion in a first direction,
• a pair of first positioning portions contacts with the first reflection member in a second direction intersecting the first direction, and
• a second positioning portion contacts with the first reflection member in a third direction perpendicular to the first direction and intersecting the second direction,
• the supporting member supports the rear optical member on an opposite side, in the second direction, from the first reflection member,
• a distance between the first reflection member and the front optical member is shorter than a distance between the first reflection member and the rear optical member, and
• the first reflection member includes, on each of one side and the other side in the first direction,
• a third positioning surface brought into contact with the front optical member, and
• a fourth positioning surface that is brought into contact with the front optical member and that is different from the third positioning surface.