US 8,984,671 B2Granted

Head-mounted device

AssigneeCanon Kabushiki Kaisha

InventorsToshiyuki Yasuda, Takaaki Nakabayashi, Toshiki Ishino, Toshiyuki Okuma, Yoshihiro Saito, Kazuhide Miyata, Hiroshi Komatsu

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Abstract

A head-mounted device to be worn on a user's head includes a first pressing member to press, for example, an occipital region, a second pressing member to press, for example, a parietal region, and first and second linear members connected to the first and second pressing members respectively. The first and second linear members are guided so that a change in lengths of the first and second linear members causes the first and second pressing members to move in the first and second directions respectively. An adjustment unit to adjust the lengths of the first and second linear members includes first and second wind-up units connected to a rotational operation member and to wind up the first and second linear members respectively.

Claims15

Dependent claims

A head-mounted device to be worn on a head of a user comprising:

a first pressing member configured to press a first region of the head from a first direction;
a second pressing member configured to press a second region which is different from the first region of the head from a second direction which is different from the first direction;
a first linear member connected to the first pressing member;
a second linear member connected to the second pressing member;
a guiding member configured to guide the first linear member and the second linear member so that a change in lengths of the first linear member and the second linear member causes the first pressing member and the second pressing member to move in the first direction and the second direction respectively;
and
an adjustment unit configured to adjust the lengths of the first linear member and the second linear member,
wherein the adjustment unit includes first and second wind-up units connected to a rotational operation member and configured to wind up the first linear member and the second linear member,
wherein a transmission characteristic of a rotational force from a rotational shaft of the operation member is different between a connection of the first wind-up unit with the rotational shaft and a connection of the second wind-up unit with the rotational shaft,
wherein the adjustment unit adjusts the lengths of both the first linear member and the second linear member in accordance with one rotating direction of the rotational operation member,
wherein the first region pressed by the first pressing member is a region on a horizontal circumference of the head extending from a temporal region to an occipital region of the head, and
wherein the second region pressed by the second pressing member is a region on a vertical circumference of the head extending from one portion of the horizontal circumference to a parietal region of the head.

9 more elements

A head-mounted device to be worn on a head of a user comprising:

a first pressing member configured to press a first region of the head from a first direction;
a second pressing member configured to press a second region which is different from the first region of the head from a second direction which is different from the first direction;
a first linear member connected to the first pressing member;
a second linear member connected to the second pressing member;
a guiding member configured to guide the first linear member and the second linear member so that a change in lengths of the first linear member and the second linear member causes the first pressing member and the second pressing member to move in the first direction and the second direction respectively;
and
an adjustment unit configured to adjust the lengths of the first linear member and the second linear member,
wherein the adjustment unit includes first and second wind-up units connected to a rotational operation member and configured to wind up the first linear member and the second linear member, and
wherein the adjustment unit adjusts the lengths of both the first linear member and the second linear member in accordance with one rotating direction of the rotational operation member,
wherein the first region pressed by the first pressing member is a region on a horizontal circumference of the head extending from a temporal region to an occipital region of the head, and
wherein the second region pressed by the second pressing member is a region on a vertical circumference of the head extending from one portion of the horizontal circumference to a parietal region of the head.

8 more elements

A head-mounted device to be worn on a head of a user comprising:

a first pressing member configured to press a first region of the head from a first direction;
a second pressing member configured to press a second region which is different from the first region of the head from a second direction which is different from the first direction;
a first linear member connected to the first pressing member;
a second linear member connected to the second pressing member;
a guiding member configured to guide the first linear member and the second linear member so that a change in lengths of the first linear member and the second linear member causes the first pressing member and the second pressing member to move in the first direction and the second direction respectively;
and
an adjustment unit configured to adjust the lengths of the first linear member and the second linear member,
wherein the adjustment unit includes first and second wind-up units connected to a rotational operation member and configured to wind up the first linear member and the second linear member,
wherein a transmission characteristic of a rotational force from a rotational shaft of the operation member is different between a connection of the first wind-up unit with the rotational shaft and a connection of the second wind-up unit with the rotational shaft, and
wherein the adjustment unit adjusts the lengths of both the first linear member and the second linear member in accordance with one rotating direction of the rotational operation member,
wherein the second wind-up unit includes a mechanism which idles the second wind-up unit with respect to the rotational shaft when a torque between the second wind-up unit and the rotational shaft becomes greater than or equal to a defined torque, and
wherein a wind-up diameter of the second wind-up unit is larger than a wind-up diameter of the first wind-up unit.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/204,624Filed 4 Sep 2008
Priority: JP 2007-23471210 Sep 2007
Published: US 2009/0066607 A112 Mar 2009
Granted: 24 Mar 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G02B 27/0176
Head mounted: characterised by mechanical features
H04N 13/344
Displays for viewing with the aid of special glasses or head-mounted displays [HMD]: with head-mounted left-right displays
H04N 2213/001
Details of stereoscopic systems: constructional or mechanical details
H04N 2213/008
Details of stereoscopic systems: aspects relating to glasses for viewing stereoscopic images