公开(公告)号：EP0117604A3

公开(公告)日：1986-11-05

申请号：EP84300191

申请日：1984-01-12

申请人： SONY CORPORATION

发明人： Murano, Kanji c/o Patent Division ,  Nishigaki, Susumu c/o Patent Division ,  Himuro, Masami c/o Patent Division ,  Watanabe, Yoshihisa c/o Patent Division

IPC分类号： G02F01/05 ,  G02F01/055

CPC分类号： G02F1/055

摘要： n electro-optical light shutter (3) includes a ceramic body (6) exhibiting electro-optical effect and a pair of electrodes (4, 5) for applying A.C. voltage to the ceramic body (6) to control the electro-optical effect. The ceramic body (6) is formed of PLZT ceramic having a memory effect at room temperature and which loses the memory effect at an elevated operating temperature caused by application of A.C. voltage to the ceramic body (6). Additionally, a heater (51) may be used to raise the operating temperature of the ceramic body (6).

公开(公告)号：EP0271900A3

公开(公告)日：1988-12-07

申请号：EP87118684

申请日：1987-12-16

申请人： CANON KABUSHIKI KAISHA

发明人： Yoshinaga, Kazuo ,  Miyazaki, Takeshi ,  Ohnishi, Toshikazu ,  Kurabayashi, Yutaka ,  Takasu, Yoshio ,  Kobayashi, Tadashi

IPC分类号： G11B09/02 ,  G11C13/04 ,  G02F01/05

CPC分类号： G11B7/00557 ,  C09K19/38 ,  C09K19/3852 ,  C09K19/3857 ,  G02F1/133365 ,  G02F1/141 ,  G11B7/24 ,  G11B7/25 ,  G11B9/02

摘要： An optical recording method comprises writing in a ferroelectric material heated at or above the glass transition point, and holding the resultant written state below the glass transition point. Preferably, the ferroelectric material constituting the optical recording layer has an optical thickness capable of providing a multiple reflection state. The multiple reflection state of the optical recording layer is locally changed at or above the glass transition point by irradiating the optical recording layer under an electric field with a laser beam in order to write in the optical recording layer.

公开(公告)号：EP0271411A3

公开(公告)日：1988-07-27

申请号：EP87402787

申请日：1987-12-08

申请人： THOMSON-CSF

发明人： Huignard, Jean-Pierre ,  Herriau, Jean-Pierre

IPC分类号： G02F03/00 ,  G02F01/05

CPC分类号： G02F1/0338 ,  G02F1/0126 ,  G02F1/21 ,  G02F3/02 ,  G02F2001/213 ,  G02F2202/13

摘要： Dispositif bistable à cristal photoréactif dans lequel un cristal photoréactif (1) compris entre deux miroirs (2 et 3) est éclaire uniformément par un faisceau lumineux (FE). Un faisceau signal (FS) est focalisé sur une portion déterminée du cristal (1) et effectue la commutation bistable de cette portion à l'intérieur du cristal.

公开(公告)号：EP0249746A3

公开(公告)日：1988-11-23

申请号：EP87106998

申请日：1987-05-14

申请人： Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung

发明人： Krov, Walter, Dr. ,  Halldorsson, Thorsten

IPC分类号： G02B06/28 ,  G02F01/13 ,  G02F01/05 ,  G02B06/42 ,  G02B06/20

CPC分类号： G02B6/2817 ,  G02B6/264 ,  G02B6/4246 ,  H04B10/278

摘要： Die Lichtleitfaser (1) für ein Datenbussystem ist zur längsseitigen Ankopplung von optoelektronischen Sende- und Empfangsstationen (11, 12) geeignet und weist eine koaxial verlaufende, lichtstreuende Ader (4) auf, die eine Ein- bzw. Auskopplung von Licht in die bzw. aus der Licht leitfaser durch die Mantelschicht (3) hindurch ermöglicht.

公开(公告)号：EP0165555A3

公开(公告)日：1988-04-06

申请号：EP85107304

申请日：1985-06-13

申请人： POLAROID CORPORATION

发明人： P.O. Box 96 Stillriver

IPC分类号： G02F01/05 ,  G02F01/29 ,  H04B09/00

CPC分类号： G02F1/035 ,  G02F1/3137 ,  G02F2201/066 ,  Y10S359/90

摘要： A method for externally modulating an optical carrier wave by propagating the wave through a single channel waveguide structured to have an output the optical power of which in the near field is distributed in a predetermined spatial pattern, selectively changing the optical power distribution pattern in correspondence with an information signal, and spatially filtering the power distribution pattern so that only the power available within selected region of the pattern is transmitted beyond the point of spatial filtering where it is available as an optical carrier wave the intensity of which is modulated in correspondence with the information signal.