公开(公告)号：US5126985A

公开(公告)日：1992-06-30

申请号：US702150

申请日：1991-05-14

申请人： Johannes H. M. Spruit ,  Hendricus F. J. J. Van Tongeren ,  Piet F. Bongers ,  Bernardus A. J. Jacobs

发明人： Johannes H. M. Spruit ,  Hendricus F. J. J. Van Tongeren ,  Piet F. Bongers ,  Bernardus A. J. Jacobs

IPC分类号： G11B5/02 ,  G11B11/10 ,  G11B11/105 ,  G11B13/04

CPC分类号： G11B11/1053 ,  G11B11/10513 ,  G11B13/045

摘要： When information is recorded on a record carrier (1) of the thermomagnetic type, the thermomagnetic recording layer (4) is scanned by a magnetic field generated by a magnetic-field modulator (7). The magnetic field is modulated depending on an information signal (Vi). Moreover, the scanned portion of the record carrier (1) is at the same time locally heated by radiation pulses (10) generated by an optical scanning device (5). By means of radiation pulses (10) the record carrier is heated above a write temperature (Ts), above which temperature the magnetization of the record carrier assumes the direction dictated by the magnetic field. A synchronizing circuit (9) generates the control signal (Vm) for modulating the magnetic field and the control signal (Vr) for generating the radiation pulses, in such a way that at the end of the radiation pulses the field strength is sufficiently high for the heated area of the record carrier to be magnetized in the directio dictated by the magnetic field.

摘要翻译： 当信息被记录在热磁型的记录载体（1）上时，热磁记录层（4）被磁场调制器（7）产生的磁场扫描。 根据信息信号（Vi）来调制磁场。 此外，由光学扫描装置（5）产生的辐射脉冲（10）局部地加热记录载体（1）的扫描部分。 通过辐射脉冲（10），记录载体被加热到高于写入温度（Ts），高于该温度，记录载体的磁化取决于由磁场决定的方向。 同步电路（9）产生用于调制磁场的控制信号（Vm）和用于产生辐射脉冲的控制信号（Vr），使得在辐射脉冲结束时，场强足够高， 由磁场决定的要被磁化的记录载体的加热区域。

公开(公告)号：US4251748A

公开(公告)日：1981-02-17

申请号：US16590

申请日：1979-03-01

申请人： Hendricus F. J. J. van Tongeren ,  Paulus P. M. Schampers ,  Willem P. Weijland ,  Marino G. Carasso

发明人： Hendricus F. J. J. van Tongeren ,  Paulus P. M. Schampers ,  Willem P. Weijland ,  Marino G. Carasso

IPC分类号： H01J29/45 ,  H01J29/39 ,  H01J29/89 ,  H01J31/26 ,  H01J31/38

CPC分类号： H01J29/89 ,  H01J29/39 ,  H01J2229/8922

摘要： The optical cross-talk in a camera tube is reduced by the provision of a filter element which overlaps the entire target. The filter may be arranged in front of the photosensitive target and have a spectral transmission which is adapted to the spectral sensitivity of the target. The filter may also be arranged behind the target and preferably constructed so that it is also low-reflective for incoming light. In order to prevent excessive transverse conduction, such a filter may have a mosaic structure consisting of mutually insulated areas. Optical cross-talk may also be reduced by mounting the target on a support which is separately arranged in the camera tube and which has a small thickness.

摘要翻译： 通过提供与整个目标物重叠的过滤元件来减少相机管中的光学串扰。 滤光器可以布置在光敏靶的前面，并且具有适合于目标的光谱灵敏度的光谱透射。 过滤器也可以布置在目标后面，并且优选地构造成使得其对于入射光也是低反射的。 为了防止过度的横向传导，这种过滤器可以具有由相互绝缘的区域组成的镶嵌结构。 也可以通过将目标物安装在分别布置在照相机管中并且具有小厚度的支撑件上来减少光学串扰。

公开(公告)号：US5045373A

公开(公告)日：1991-09-03

申请号：US481669

申请日：1990-02-14

申请人： Martinus M. Sens ,  Theodorus C. J. M. Bertens ,  Hendricus F. J. J. Van Tongeren ,  Johannes T. H. Thijssen

发明人： Martinus M. Sens ,  Theodorus C. J. M. Bertens ,  Hendricus F. J. J. Van Tongeren ,  Johannes T. H. Thijssen

IPC分类号： B41M5/26 ,  G11B7/24 ,  G11B7/243 ,  G11B7/257 ,  G11B11/105

CPC分类号： G11B7/243 ,  G11B11/10582 ,  G11B7/24 ,  G11B7/257 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/2432 ,  G11B2007/25708 ,  G11B2007/25715 ,  G11B7/2578 ,  Y10S428/913 ,  Y10S430/146

摘要： A laminated product comprising substrate (7) and a thin layer (11, 12) of a dielectric compound formed from the oxide or the suboxide of gallium antimonide or indium antimonide, an optical information carrier containing such a thin layer, whereby said thin layer, dependent upon the oxygen content, may function as a recording layer 11 or as a transparent distance layer 12, as well as the suboxide of gallium antimonide or indium antimonide used in the laminated product.

公开(公告)号：US4916465A

公开(公告)日：1990-04-10

申请号：US209443

申请日：1988-06-15

申请人： Hendricus F. J. J. Van Tongeren ,  Martin A. J. P. Farla

发明人： Hendricus F. J. J. Van Tongeren ,  Martin A. J. P. Farla

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0065 ,  G11B11/105

CPC分类号： G11B11/10506 ,  G11B11/10528 ,  G11B11/1053 ,  G11B11/10536 ,  G11B7/0045

摘要： A method and apparatus are described for recording a binary information signal (FIG. 2a) on a record carrier (1) having an information layer (2) whose optical properties are modified upon heating. An information pattern corresponding to this information signal (FIG. 2a) is obtained in that the record carrier 1 is moved relative to an optical system (3) for focussing a radiation beam (4) on the information layer (2), a subsequent recording mark (5) being written on the information layer (2) in selected time intervals (.tau.) by locally heating the information layer by means of the radiation beam (4). The amount of radiation energy (E) applied in a selected time interval depends on the position of the selected time interval (.tau.) in the sequence of consecutive selected time intervals (.tau.). This provides compensation for the influence of the radiation energy (E) applied in the preceding time interval (.tau.) on the temperature at the location of the recording mark (5) to be written in the time interval (.tau.) so that for each recording mark (5) the temperature (T.sub.r) which is reached in the information layer (2) and hence the size of the recording mark (5) is substantially the same.

公开(公告)号：US4774522A

公开(公告)日：1988-09-27

申请号：US24937

申请日：1987-03-12

申请人： Hendricus F. J. J. Van Tongeren ,  Martin A. J. P. Farla

发明人： Hendricus F. J. J. Van Tongeren ,  Martin A. J. P. Farla

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0065 ,  G11B11/105 ,  G01D9/00 ,  G01D15/10

CPC分类号： G11B11/10506 ,  G11B11/10528 ,  G11B11/1053 ,  G11B11/10536 ,  G11B7/0045

摘要： A method and apparatus are described for recording a binary information signal on a record carrier having an information layer whose optical properties are modified upon heating. An information pattern corresponding to the information signal is obtained by moving the record carrier relative to an optical system which focuses a radiation beam onto the information layer. A recording mark is written on the information layer is selected time intervals by locally heating the information layer with the focussed radiation beam. The amount of radiation energy applied during a selected time interval depends on the position of the selected time interval in the sequence of consecutive selected time intervals. This provides compensation for the increase in the temperature at the location where the mark is to be recorded due to heating of the layer during recording of a mark in the preceding time interval. The amount of radiant energy that is applied is chosen so that for each recording mark the temperature which is reached in the information layer, and hence the size of the recording mark, is substantially the same.

公开(公告)号：US5216737A

公开(公告)日：1993-06-01

申请号：US834417

申请日：1992-02-12

申请人： Johannes C. Driessen ,  Jan W. Kokkelink ,  Hendricus F. J. J. Van Tongeren

发明人： Johannes C. Driessen ,  Jan W. Kokkelink ,  Hendricus F. J. J. Van Tongeren

IPC分类号： G02B6/42 ,  G02B27/28 ,  G02F1/095

CPC分类号： G02B6/4208 ,  G02F1/0955

摘要： The invention relates to an optoelectronic device comprising a semiconductor laser enclosed in an envelope, an optical fibre coupled to the semiconductor laser, and further coupled to at least one optical isolator and an outgoing optical fibre (pigtail). According to the invention, the semiconductor laser and the optical isolator are each enclosed in a separate module. The laser module mainly provides space to the semiconductor laser and to an optical fibre coupled thereto and ending in a ferrule in a tubular projection of the laser module. The module for the optical isolator is tubular in shape and contains in that order a first graded index lens, an optical isolator, a second graded index lens, and an outgoing optical fibre (pigtail) coupled to this second graded index lens through a ferrule. The tubular projection of the laser module and an end portion of the tubular optical module are so shaped in relation to one another that a mechanical coupling of the two modules can be obtained whereby the optical coupling between the modules is achieved simultaneously.

公开(公告)号：US5107537A

公开(公告)日：1992-04-21

申请号：US622669

申请日：1990-12-05

申请人： Cornelis G. Schriks ,  Hermanus A. Van De Pas ,  Jan W. Kokkelink ,  Hendricus F. J. J. Van Tongeren

发明人： Cornelis G. Schriks ,  Hermanus A. Van De Pas ,  Jan W. Kokkelink ,  Hendricus F. J. J. Van Tongeren

IPC分类号： G02B6/42

CPC分类号： G02B6/4225 ,  G02B6/4204 ,  G02B6/421 ,  G02B6/4237 ,  G02B6/4292

摘要： An optoelectronic device with a coupling is provided, comprising a lens (10), between an optical transmission fiber (13) and a semiconductor laser diode (2), which device is provided with a holder (1) for the laser diode, a holder (12) for the optical transmission fiber and an intermediate piece (16) present between these two holders, the spherical lens (10) being accommodated in the cover (9) of the holder (1) of the laser diode (2), while the holder (12) of the transmission fiber contains a hollow glass rod (14) in which a core portion (11) of the transmission fiber is accommodated, the end (15) of the glass rod and the fiber core being flat and polished, while the intermediate piece (16) has a sleeve shape and slides with exact fit over the cover (9) of the holder of the semiconductor laser diode (2), which sleeve-shaped intermediate piece has two grooves spaced some distance apart, at which grooves the intermediate piece and the cover of the holder of the semiconductor laser diode are fastened to one another by means of a number of laser welds after axial alignment, while furthermore the ends of the intermediate piece (16) and the holder (12) for the transmission fiber (11) facing one another have flat surfaces perpendicular to the axial alignment direction, which surfaces are fastened to one another with a plurality of laser welds after transversal adjustment.

公开(公告)号：US4353005A

公开(公告)日：1982-10-05

申请号：US161546

申请日：1980-06-20

申请人： Hendricus F. J. J. van Tongeren ,  Paulus P. M. Schampers ,  Willem P. Weijland ,  Marino G. Carasso

发明人： Hendricus F. J. J. van Tongeren ,  Paulus P. M. Schampers ,  Willem P. Weijland ,  Marino G. Carasso

IPC分类号： H01J29/39 ,  H01J29/89 ,  H01J29/45 ,  H01J31/26

CPC分类号： H01J29/89 ,  H01J29/39 ,  H01J2229/8922

摘要： The optical cross talk in a camera tube is reduced by the provision of a filter element which overlaps the entire target. The filter may is be arranged behind the target and is constructed so that it has low reflectance for incoming light. In order to prevent excessive transverse conduction, such a filter has a mosaic structure consisting of mutually insulated areas.

摘要翻译： 通过提供与整个目标物重叠的过滤元件来减少相机管中的光学串扰。 过滤器可以布置在目标后面，并且被构造成使得其对于入射光具有低反射率。 为了防止过度的横向导电，这种过滤器具有由相互绝缘的区域组成的马赛克结构。