US 12,013,723 B2
Head mounted display
Toru Kuronuma, Kanagawa (JP)
Assigned to Sony Interactive Entertainment Inc., Tokyo (JP)
Appl. No. 17/428,383
Filed by Sony Interactive Entertainment Inc., Tokyo (JP)
PCT Filed Feb. 8, 2019, PCT No. PCT/JP2019/004606
§ 371(c)(1), (2) Date Aug. 4, 2021,
PCT Pub. No. WO2020/161882, PCT Pub. Date Aug. 13, 2020.
Prior Publication US 2022/0137663 A1, May 5, 2022
Int. Cl. G06F 1/16 (2006.01); G02B 27/01 (2006.01); G02B 27/02 (2006.01)
CPC G06F 1/163 (2013.01) [G02B 27/0176 (2013.01); G02B 27/02 (2013.01); G02B 27/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A head mounted display having a mounting band for surrounding a head of a user, the mounting band including:
a case that configures a rear portion of the mounting band;
a stretching unit that configures a side portion of the mounting band and that extends from a front side toward a rear side, at least part of a rear portion of the stretching unit being accommodated in the case, where the stretching unit includes a right stretching unit that configures a right side portion of the mounting band and a left stretching unit that configures a left side portion of the mounting band;
an adjustment mechanism that adjusts a length of the stretching unit to be accommodated in the case by relatively moving the stretching unit with respect to the case;
a winding target member accommodated in the case, where the winding target member includes a right winding target member and a left winding target member such that: (i) the right target winding member is not fixed to the case and is fitted in a right fitting region formed in the case, and (ii) the left winding target member is not fixed to the case and is fitted in a left fitting region formed in the case; and
a spring member which is fixed at a front portion thereof to the stretching unit and is wound at a rear portion thereof on the winding target member and in which an unwinding amount from the winding target member changes according to the length of the stretching unit accommodated in the case, the spring member generating elastic force to act in a direction in which the stretching unit is accommodated into the case, first elastic force generated by a first unwinding amount and second elastic force generated by a second unwinding amount that is different from the first unwinding amount being equal to each other, where the spring member includes a right spring member which is fixed at a front portion thereof to the right stretching unit and is wound at a rear portion thereof on the right winding target member, and a left spring member which is fixed at a front portion thereof to the left stretching unit and is wound at a rear portion thereof on the left winding target member,
wherein the case has a recess portion depressed forwardly between the right fitting region and the left fitting region, and at least part of the adjustment mechanism is attached to the recess portion.