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1. 发明专利

NL6815606A 未知
公开(公告)号：NL6815606A
公开(公告)日：1969-07-01
申请号：NL6815606
申请日：1968-11-01
IPC分类号： G02F1/35 , G11C13/04 , G11B7/04
摘要： 1,236,108. Uses of luminescence. WESTERN ELECTRIC CO. Inc. 23 Dec., 1968 [26 Dec., 1967], No. 60966/68. Heading C4S. [Also in Divisions G4 and HI] An optical memory comprises a solid twophoton fluorescent medium having at least two energy states at levels such that a radiative transition from a higher state to a lower state can occur, means producing a pair of energy pulses having a duration of a picosecond or less which coincide and overlap within a region of the medium to create in the region free radicals at an energy level intermediate the two states, and means for producing the radiation transition by increasing the energy of the free radicals to the higher state. A solidified fluorescent medium 12, which can be frozen or polymerized, is used as a two dimensional or three dimensional store. A laser beam pulse of frequency f 1 is deflected by deflector 15 and applied to the medium 12. A laser beam pulse of frequency f/ 2 = +¢f 1 is deflected and applied to block 12. The pulses are arranged to overlap at a particular memory cell 18 and have frequency and intensity such that both beams are required to excite electrons from level S o to level S 1 from where they undergo a non-radiative transition to level T 1 and produce free radicals which do not recombine because the medium is solid. Read out can occur by applying a collimated beam from an infra red source (e.g. CO 2 laser) to the cell to liquefy the cell, if the medium is frozen to cause the radicals to combine, undergo a non-radiative transition from T 1 to S 1 and allow electrons excited to S 1 to fall to one of the levels of S 0 accompanied by fluorescence which is detected. If the medium is polymerized frequencies f 3 , f4 of suitable intensities are used to create read-out in a similar manner. The two frequencies can be used to excite the free radicals to a level higher than level S 1 which is then reached by a non-radiative transition. In a further embodiment, one pulse source is used (e.g. a Nd : glass laser), the beam being applied to a frequency doubler to produce frequencies f 1 2f 1 which are applied to a variable delay delaying frequency 2f 1 more than f 1 . The memory cell block is backed by a mirror reflecting frequency f 1 but not 2f 1 so that the cell selected is that occurring when reflected frequency f 1 overlaps delayed frequency 2f 1 . The fluorescent medium may be anthracene, pyrene, 3,4-benzpyrene and may be polymerized by mixing the solid form with paranitrostyrene and liquid styrene, then heating. Alternatively it may be dissolved in benzene lowered to liquid helium temperatures.

2. 实用新型

JPS5226839U 失效
公开(公告)号：JPS5226839U
公开(公告)日：1977-02-24
申请号：JP11279675
申请日：1975-08-14
IPC分类号： G06K7/015 , G06F7/08 , G06K1/00 , G11B7/00 , G11B7/08 , G11B7/135 , G11B7/30 , G11C13/04 , G11B7/04

3. 实用新型

JPS503097Y1 失效
公开(公告)号：JPS503097Y1
公开(公告)日：1975-01-27
申请号：JP9149670
申请日：1970-09-14
IPC分类号： G11B7/125 , H01L33/48 , H01L33/00 , G11B7/04

4. 发明专利

JPS56501781A 失效
公开(公告)号：JPS56501781A
公开(公告)日：1981-12-03
申请号：JP50013181
申请日：1980-10-24
IPC分类号： G11B7/00 , G11B7/003 , G11B7/08 , G11B7/12 , G11B7/135 , G11B7/14 , G11B7/04

5. 实用新型

JPS5779949U JPS5779949U - 失效
公开(公告)号：JPS5779949U
公开(公告)日：1982-05-17
申请号：JP15496280
申请日：1980-10-31
IPC分类号： G11B7/242 , G11B7/00 , G11B7/004 , G11B7/24 , G11B7/04

6. 发明专利

FR2537318B1 未知
公开(公告)号：FR2537318B1
公开(公告)日：1988-07-08
申请号：FR8315329
申请日：1983-09-27
申请人： FUJI PHOTO FILM CO LTD
发明人： TANIGUCHI YATAKA , KATO HISATOYO
IPC分类号： G02B6/42 , G03B42/02 , H01J31/00 , H04N1/028 , G11B7/04 , H04N1/024
摘要： A light-shielding cover for a light guide member guiding light emitted from a stimulable phosphor sheet carrying a radiation image stored therein when the stimulable phosphor sheet is exposed to stimulating rays comprises a flexible light-shielding member for covering the whole of the side faces of the light guide member without closely contacting the side faces, and a pair of rod-like core metal members fitted to the flexible light-shielding member for sandwiching a portion near a linear light input face of the light guide member from both sides thereof.

7. 发明专利

CS191984B2 RETARDING CIRCUIT FOR THE LIMITATION OF THE DYNAMICS IN THE STUDIO TECHNICS 未知
公开(公告)号：CS191984B2
公开(公告)日：1979-07-31
申请号：CS518176
申请日：1976-08-10
申请人： ELEKTROAKUSZTIKAI GYAR
发明人： MAGYAR MIKLOS , SOMOGYI GYOERGYI , HAASZ LEVENTE
IPC分类号： G06G7/12 , G11B7/04

8. 发明专利

DE2745301A1 Data recorded credit card - has data stored in fluorescent compound read by IR source 未知
公开(公告)号：DE2745301A1
公开(公告)日：1979-04-19
申请号：DE2745301
申请日：1977-10-07
申请人： HITACHI LTD
发明人： SUZUKI ATSUSHI
IPC分类号： B41M3/14 , B44F1/12 , C09K11/80 , C09K11/81 , G06K19/02 , G06K19/14 , G11B7/24 , G06K7/12 , G07C9/00 , G11B7/04
摘要： A data card of the type used as credit cards contains information stored that is read by an IR beam. The aim is to record the data such that it may be accurately read even though folds and marks are present. The card (1) has information recorded using a compound of neodymium (2) that exhibits a sharp absorption and emission characteristic at specific wave lengths. An infrared beam (6) is directed onto a slit (4) onto the card and the reflected light is detected (9) after transmission through a fibre optic bundle (8) over a filter. Other flourescent compounds, such as ylterbium and erbium may be used.

9. 发明专利

BR7409547A 未知
公开(公告)号：BR7409547A
公开(公告)日：1976-05-25
申请号：BR954774
申请日：1974-11-13
申请人： TVI TEL IND SA
发明人： EBERLE K
IPC分类号： G01C23/00 , G01D9/00 , G01P1/14 , G06K11/00 , G07C5/00 , G11B7/004 , G11B7/04

10. 发明专利

NL6901121A 未知
公开(公告)号：NL6901121A
公开(公告)日：1969-07-28
申请号：NL6901121
申请日：1969-01-23
IPC分类号： G11C13/04 , H01J29/14 , H01J29/18 , H01J29/24 , H01J29/20 , G11B7/04 , G11C11/32

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