Alignment device
First Claim
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1. A VIDEO TELEPHONE SET COMPRISING A CABINET, A TELEVISION CAMERA HOUSED IN SAID CABINET FOR TELEVISING THE IMAGE OF A LOCAL SUBSCRIBER TO A REMOTE SUBSCRIBER, A LENS SYSTEM ASSOCIATED WITH SAID CAMERA FOR FOCUSING THE IMAGE OF SAID LOCAL SUBSCRIBER TO BE TELEVISED BY SAID CAMERA, THE FIELD OF SAID LENS SYSTEM BEING DIRECTED ALONG AN AXIS, MEANS DISPOSED IN SAID CABINET FOR PROJECTING A BEAM OF LIGHT SUBSTANTIALLY COAXIAL WITH SAID AXIS TOWARD SAID LOCAL SUBSCRIBER, AND MASKING MEANS DISPOSED IN THE PATH OF SAID BEAM FOR OBSTRUCTING A CENTRAL SECTION OF SAID BEAM.
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1 Claim
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1. A VIDEO TELEPHONE SET COMPRISING A CABINET, A TELEVISION CAMERA HOUSED IN SAID CABINET FOR TELEVISING THE IMAGE OF A LOCAL SUBSCRIBER TO A REMOTE SUBSCRIBER, A LENS SYSTEM ASSOCIATED WITH SAID CAMERA FOR FOCUSING THE IMAGE OF SAID LOCAL SUBSCRIBER TO BE TELEVISED BY SAID CAMERA, THE FIELD OF SAID LENS SYSTEM BEING DIRECTED ALONG AN AXIS, MEANS DISPOSED IN SAID CABINET FOR PROJECTING A BEAM OF LIGHT SUBSTANTIALLY COAXIAL WITH SAID AXIS TOWARD SAID LOCAL SUBSCRIBER, AND MASKING MEANS DISPOSED IN THE PATH OF SAID BEAM FOR OBSTRUCTING A CENTRAL SECTION OF SAID BEAM.
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Current AssigneeRobert E. Prescott
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Original AssigneeRobert E. Prescott
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InventorsPrescott, Robert E.
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Application NumberUS04/160,170Time in Patent Office743 DaysField of SearchUS Class Current348/14.16CPC Class CodesH04N 7/142 Constructional details of t...
