# US 2017/0285366 A1 · Infrared video display eyewear

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- Number: US 2017/0285366 A1
- Document ID: US20170285366A1
- Status: Published application
- Kind: A1
- Application number: 15/592,589
- Filed: 2017-05-11
- Published: 2017-10-05
- Earliest claimed: 2013-03-22
- Assignees: Seiko Epson Corporation; Brian C. Longbotham
- Applicants: Seiko Epson Corporation
- Inventors: Brian C. LONGBOTHAM; Judith BAIN
- Web page: https://patentgrep.com/patent/US20170285366A1

## CPC

- H04N 23/51: Housings
- G02B 23/125: {head-mounted}
- G02B 27/017: {Head mounted}
- G02B 27/0172: {characterised by optical features}
- H04N 13/239: using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance (H04N13/243 takes precedence)
- H04N 13/254: in combination with electromagnetic radiation sources for illuminating objects
- H04N 13/344: with head-mounted left-right displays
- H04N 23/20: for generating image signals from infrared radiation only
- G02B 2027/0127: {comprising devices increasing the depth of field}
- G02B 2027/0134: {of stereoscopic type}
- G02B 2027/0138: {comprising image capture systems, e.g. camera}
- G02B 2027/0154: {with movable elements}
- H04N 13/246: Calibration of cameras
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A wearable display apparatus for viewing video images of scenes and/or objects illuminated with infrared light, the display apparatus including a transparent display that is positioned in a user's field of vision when the display apparatus is worn, a stereoscopic video camera device including at least two cameras that each capture reflected infrared light images of a surrounding environment and a projection system that receives the infrared light images from the stereoscopic camera device, and simultaneously projects (i) a first infrared-illuminated video image in real-time onto a left eye viewport portion of the transparent display that overlaps a user's left eye field of vision and (ii) a second infrared-illuminated video image in real-time onto a right eye viewport portion of the transparent display that overlaps a user's right eye field of vision.

## Claims

### Claim 1

A display system for viewing video images of objects comprising:
a wearable display including a transparent display that is positioned in a user's field of vision when the wearable display is worn;
a stereoscopic video camera device including at least two cameras that each capture video images of the surrounding environment; and
a projection system mounted to the wearable display that receives the video image from the stereoscopic camera device, and projects (i) a first video image onto a transparent left eye viewport portion of the transparent display, the first video image overlapping the user's left eye field of vision and (ii) a second video image onto a transparent right eye viewport portion of the transparent display, the second video image overlapping the user's right eye field of vision,
wherein the stereoscopic video camera device is configured to be mounted to a hard hat.

### Claim 2 (depends on 1)

The display system according to claim 1, further comprising:
a belt that is disposed around the hard hat;
a bracket attachment that is fastened to the belt; and
a support device that is rotatably fixed to the bracket attachment, wherein
the stereoscopic video camera device is attached to one end of the support device, and the infrared light source is attached to another end of the support device.

### Claim 3 (depends on 2)

The display system according to claim 2, wherein
the support device is substantially bent at 90° so that a viewing angle of the stereoscopic video camera device and a viewing angle of the infrared light source are substantially the same.

### Claim 4 (depends on 3)

The display system of claim 3, wherein
when the support device is rotated, the viewing angle of the stereoscopic video camera device and the viewing angle of the infrared light source remain substantially the same.

### Claim 5 (depends on 2)

The display system of claim 2, further comprising a fastener that fastens the support device to the stereoscopic video camera device.

### Claim 6 (depends on 2)

The display system of claim 2, wherein the belt encircles the hard hat and extends over the top of the hard hat.

### Claim 7 (depends on 2)

The display system of claim 2, wherein
the bracket attachment increases a clamping force to fix the support device in place, and
the bracket attachment decreases a clamping force to rotate the support device.

### Claim 8

A display system for viewing video images of objects comprising
a wearable display including a transparent display that is positioned in a user's field of vision when the wearable display is worn;
a camera, and
a mechanism that is to be secured with respect to the user's head or a hard hat worn by the user and supports the camera, the mechanism have a rotatable part to change an orientation of the camera with respect to the user's field of vision or the hard hat.