# US 2014/0225979 A1 · Videoconferencing system using an inverted telescope camera

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- Number: US 2014/0225979 A1
- Document ID: US20140225979A1
- Status: Published application
- Kind: A1
- Application number: 14/126,530
- Filed: 2012-06-15
- Published: 2014-08-14
- Earliest claimed: 2011-06-15
- Assignees: Mebe Viewcom AB
- Inventors: Erik Eskilsson
- Web page: https://patentgrep.com/patent/US20140225979A1

## CPC

- H04N 7/142: {Constructional details of the terminal equipment, e.g. arrangements of the camera and the display}
- H04N 7/144: {camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact}
- H04N 7/15: Conference systems
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

The present invention relates to a system for life-size video conferencing provided in studio having a local conferee space (100). The video conferencing system comprises an optical input unit (30), an optical output unit (40), a screen (60), a network unit (34) and a transparent barrier (38). The transparent barrier (38) is arranged to seal and protect the video conferencing system from the local conference space (100) and the screen (60) is provided skewed, with an angle a in relation to the optical output unit (40), between the transparent barrier (38) and the optical output unit (40) in such a way that it totally reflects the image (31) of the local conference space into the optical input unit (30) and is transparent for a conferee sitting in the local conference space (100) and viewing the optical output unit (40). The optical input unit (30) is a camera provided with a lens system in form of an inverted telescope.

## Claims

### Claim 1

A system for life-size videoconferencing provided in a studio having a local conference space, said video conferencing system comprising an optical input unit, an optical output unit and a network unit, wherein the optical input unit is a camera provided with a image forming system in form of an inverted telescope through which visible light of objects to be filmed travel to create images.

### Claim 2 (depends on 1)

The videoconferencing system according to claim 1, wherein the network unit further comprises a processing unit for enlarging the created images.

### Claim 3 (depends on 1)

The videoconferencing system according to claim 1, wherein the network unit further comprises a processing unit for enhancing the brightness of the created images.

### Claim 4 (depends on 1)

The videoconferencing system according to claim 1, further comprising a screen and a transparent barrier, wherein the transparent barrier is arranged to seal and protect the video conferencing system from the local conference space and the screen is provided skewed, with an angle α in relation to the optical output unit, between the transparent barrier and the optical output unit in such a way that it totally reflects the image of the local conference space into the camera and is transparent for a conferee sitting in the local conference space and viewing the optical output unit.

### Claim 5 (depends on 4)

The videoconferencing system according to claim 4, wherein the angle α is in the range of 30-45.

### Claim 6 (depends on 1)

The videoconferencing system according to claim 1, wherein a mirror is arranged to reflect an image of the local conference space into the camera.

### Claim 7 (depends on 4)

The videoconferencing system according to claim 4, wherein the transparent barrier is a surface foiled polyester film.