# US 2010/0164840 A1 · Head-mounted display

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- Number: US 2010/0164840 A1
- Document ID: US20100164840A1
- Status: Published application
- Kind: A1
- Application number: 12/522,351
- Filed: 2007-12-26
- Published: 2010-07-01
- Earliest claimed: 2007-01-09
- Assignees: Scalar Corporation
- Inventors: Masao Yamamoto
- Web page: https://patentgrep.com/patent/US20100164840A1

## CPC

- G02B 27/0172: {characterised by optical features}
- G02B 17/086: {wherein the system is made of a single block of optical material, e.g. solid catadioptric systems}
- G02B 2027/0132: {comprising binocular systems}
- G02B 2027/0158: {with adjustable nose pad}
- G02B 2027/0178: {Eyeglass type (eyeglass details G02C)}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

Provided is a head mount display of a type of being attached to eyeglasses. The head mount display (1) includes a case (10) incorporating a display and free-form surface prisms (20). A nose pad (30) is attached to the case (10) of the head mount display (1). The head mount display (1) is used with the case (10) being attached to a bridge (105) of eyeglasses (100). On such an occasion, the nose pad (30) attached to the case (10) functions as the nose pad for the eyeglasses (100).

## Claims

### Claim 1

A head mount display which is provided with:
a display means for displaying an image; and
a light guide means for guiding the image displayed by the display means and enlarged at a predetermined magnification to an eye of a user, and which is used while being attached to an attachment member so as to be located on an inner side of the attachment member, the attachment member having an eyeglass shape and mounted to a head of the user, the head mount display comprising a nose pad held in contact with a nose of the user while the head mount display is attached to the attachment member mounted to the head of the user.

### Claim 2 (depends on 1)

A head mount display according to claim 1, which is detachably attached to the attachment member.

### Claim 3 (depends on 2)

A head mount display according to claim 2, wherein the nose pad is detachable to the head mount display, and is detachably attached to the attachment member from which the head mount display is detached.

### Claim 4 (depends on 2)

A head mount display according to claim 2, further comprising another nose pad attachable to the attachment member when the head mount display is detached from the attachment member, the another nose pad being different from that provided to the head mount display.

### Claim 5

A head mount display system, comprising:
an attachment member having an eyeglass shape and mounted to a head of a user; and
a head mount display used while being attached to an attachment member so as to be located on an inner side of the attachment member, the head mount display comprising:
a display means for displaying an image; and
a light guide means for guiding the image displayed by the display means and enlarged at a predetermined magnification to an eye of a user,
wherein the head mount display comprises a nose pad held in contact with a nose of the user while the head mount display is attached to the attachment member mounted to the head of the user.

### Claim 6 (depends on 5)

A head mount display system according to claim 5, wherein the head mount display is detachably attached to the attachment member.

### Claim 7 (depends on 5)

A head mount display system according to claim 5, wherein the attachment member is provided with temples, and the temples are formed as straight temples.

### Claim 8 (depends on 6)

A head mount display system according to claim 6, wherein the nose pad provided to the head mount display is detachable to the head mount display, and when the nose pad is detached from the head mount display, the nose pad is detachably attached to the attachment member from which the head mount display is detached.

### Claim 9 (depends on 6)

A head mount display system according to claim 6, wherein the attachment member comprises another nose pad held in contact with a nose of the user when the attachment member is mounted to the head of the user while the head mount display is detached from the attachment member, the another nose pad being different from that provided to the head mount display.