公开(公告)号：US3745482A

公开(公告)日：1973-07-10

申请号：US3745482D

申请日：1970-11-30

Applicant: BELL TELEPHONE LABOR INC

Inventor： PATEL C

IPC: H01S3/036 ,  H01S3/223 ,  H01S3/00

CPC classification number: H01S3/036 ,  H01S3/2232

Abstract: There is disclosed a laser providing emission of coherent radiation near 10 microns in the far infrared and utilizing transitions between vibrational-rotational levels in carbon dioxide. Also disclosed are beneficial effects from addition of helium to various forms of such a laser.

公开(公告)号：US3723902A

公开(公告)日：1973-03-27

申请号：US3723902D

申请日：1970-11-30

Applicant: BELL TELEPHONE LABOR INC

Inventor： PATEL C

IPC: H01S3/036 ,  H01S3/223 ,  H01S3/00

CPC classification number: H01S3/036 ,  H01S3/2232

Abstract: There is disclosed a laser providing emission of coherent radiation near 10 microns in the far infrared and utilizing transitions between vibrational-rotational levels in carbon dioxide. Also disclosed are beneficial effects from addition of oxygen and water vapor to various forms of such a laser.

公开(公告)号：US3716747A

公开(公告)日：1973-02-13

申请号：US3716747D

申请日：1970-09-04

Applicant: BELL TELEPHONE LABOR INC

Inventor： PATEL C

IPC: H01J31/26 ,  H01J29/46

CPC classification number: H01J31/265

Abstract: THE TARGER OF A TELEVISION CAMERA TUBE INCLUDES A PHOTOEMITTER OR A PHOTOCONDUCTOR AND A PHOTOCHROMIC GLASS LAYER DISPOSED BETWEEN AN IMAGE BEING VIEWED AND THE SOURCE OF A SCANNING LASER BEAM. THE IMAGE IS FOCUSED ONTO ONE SURFACE OF THE PHOTOCHROMIC GLASS LAYER WHILE THE SCANNING BEAM IS MADE INCIDENT ON THE OPPOSITE SURFACE THEREOF. THE MEAM TRANSMITTED THROUGH THE LAYER EMERGES WITH MODULATED INTENSITY CORRESPONDING TO THE INTENSITY PATTERN OF THE IMAGE AND THEN IMPINGES ON THE PHOTOEMITTER, OFR EXAMPLE, TO GENERATE FREE ELECTRONS MODULATED IN SCAN TIME IN ACCORDANCE WITH THE IMAGE INTENSITY PATTERN. THESE ELECTRONS ARE COLLECTED TO PRODUCE AN ELECTRICAL SIGNAL REPRESENATATIVE OF THE IMAGE.