• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A laser-operated apparatus for data and signaling recording makes use of a laser-beam source whose laser beam is directed at the Bragg angle into a tellurium dioxide monocrystal provided with an array of ultrasonic transducers, each of which is energized independently by at least one amplitude modulated very high frequency carrier. The individual transducer segments generate respective beams within the body of the crystal which, upon emerging, represent individual information channels which are separately controllable to provide the data and information recordal.
    公开号:SU1327803A3
    申请号:SU772555704
    申请日:1977-12-12
    公开日:1987-07-30
    发明作者:Подманицкий Андраш；Текеш Саболч；Л.Маркуш Атилла；Вадас Петер；Пойа Эндре；Балаж Карой；Таллер Андраш
    申请人:Мта Сомиташтехникай Еш Аутоматизалаши Кутато Интезет (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to automation and computing, in particular to devices for recording information
    The purpose of the invention is to simplify and increase the reliability of the device.
    The drawing shows a block diagram of the proposed device.
    The device for recording information contains a monochromatic radiation source 1 (laser), the first unit 2 of the projection of the luminous flux containing a polarized plate 3, collecting 4 and scattering 5 lenses, a multichannel light modulator 6, made in the form of a single crystal-tellurium dioxide with mounted on its surface in series along the optical axis by ultrasonic transducers whose inputs are the control inputs of a multichannel light modulator. In addition, the device contains a second light projection unit 7 containing a diffusing 8 and collecting 9 lenses, a reflective element 10, for example a mirror, an opaque optical shutter 11 with a photodetector 12 attached to it, a mount unit of carrier 13 made in the form of a cylinder with the possibility of rotation around its axis, character generator 14 and control unit 5, containing amplifiers 16, adders 17 and drivers 18, each of which is made in the form of a level controller 19, a key 20, and a generator of sinusoidal signals 21. Input 22 is the information input of the device.
    The device works as follows.
    The beam of light from laser 1 passes through block 2 to multichannel modulator 6, where the beam diameter decreases in proportion to the ratio of the focal lengths of gathering 4 and scattering 5 lenses of block 2. The unbroken and deflected light beams coming out of the multichannel modulator pass through the block 7 is then reflected by the swinging mirror 10, after which it is projected onto the cylinder 13, rotating at a constant speed and covered with a photosensitive layer.
    Undecided, the laser beam overlaps, with the exception of the extreme angular position along the entire length
    5 0 Ь 0 0
    5 0 5
    five
    sweep valve 11, so it does not reach the cylinder,
    The swinging mirror is rotated about the axis of rotation with an amplitude of 10-30 °. The deflected beam moves under the action of these oscillations along the cylinder generator. If the deflected beam is modulated synchronously with the movement of the swinging mirror 10, a series of signs are formed along the cylinder generator that can be projected onto the display screen.
    A small-aperture photodetector 12 mounted near the vertical side of the valve 11 detects a laser beam that is non-sloping and periodically deflected only by swinging a mirror, while the swinging mirror 10 at the time points corresponding to the extreme angular positions produces pulses that serve to synchronize the module Torah 6.
    An ultrasonic transducer (from a series of discretely located segments 13) with a shear action is located on the plane of the modulator crystal 6. Each separate segment 23 receives a collective signal from amplifiers 16, formed by summing the signals from generators 21 passing through the keys 20 and dynamic controllers 19 to the inputs of adders 17,
    The frequencies of the generators are distributed evenly throughout the working range, frequency zone “
    By means of separate segments in the crystal of the modulator 6, the combined phase gratings are formed. A beam of light falling under the so-called Bragg angle is deflected by an angle corresponding to individual frequencies, and thus, different light beams are generated at the output, the intensity of which can be modulated independently of each other using the signal supplied to the control inputs of the modulator 6 .
    In turn, the individual intensity control of each beam is carried out using the sign-generator 14, the output of which is fed to the inputs of the keys 20 and the dynamic level controllers 19 corresponding to the driver 18.
    as a result, at the output of the modulator 6, deflected beams are formed, forming matrix columns,
    The multichannel modulation and the swinging mirror 10 can be synchronized either by a signal from a photodetector 12 inputted to the sign generator 14, or by means of signaling signals issued by the sign generator to the input of the drive mirror 10 (not shown). Input 22 is intended for the organization of communication with a computer.
    Thus, a new constructive implementation of a multichannel modulator and a control unit makes it possible to significantly simplify the proposed device and increase the reliability of its operation.
    权利要求:
    Claims (1)
    [1]
    Formula inveni.ni
    A device for recording information, containing a source of monochromatic radiation, optically coupled through a serially arranged first block of light stream projection, a multichannel light modulator, a second block of light beam projection, and a reflective element with a carrier mount installed with the possibility of rotation around its axis, and with a photodetector mounted on an optically opaque damper, a control unit, information outputs of which are connected to the 27803 . four
    to the control inputs of the multichannel light modulator, character generator, one information input of which (is the information input
    the device, another information input is connected to the photoreceiver output, and the outputs are connected to the information inputs of the control unit, it is important that, in order to simplify and increase the reliability of the device, the multichannel light modulator in it is made in the form of a single crystal of tellurium dioxide with fixed on its surface, successively along the optical axis, ultrasonic transducers, whose control inputs are the control inputs of a multichannel modulator
    20 light, and the control unit contains drivers, each of which is designed as a generator of sinusoidal signals connected to the information input of the corresponding
    25 keys, the control input of which. is one input of the former, and the output is connected to one input of the corresponding level regulator, the other input of which is another 30th input of the former, and the output of the regulator is the output of the former, the adders, whose inputs are connected to the outputs of the corresponding formers, and the outputs are connected to inputs of the respective amplifiers, the outputs of which are the outputs of the control unit.
    Compiler A.Romanov Editor Y. Sereda Tekhred L. Serdyukova Proofreader A. Zimokosov
    f „- -, -,, c .-., t.1 -.- ni-aiп-t-- - - - -
    Order 3396/59 Circulation 672 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    1Z
      I
    U
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    同族专利:
    公开号 | 公开日
    DE2755575C2|1988-05-05|
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    US4201455A|1980-05-06|
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    DE2755575A1|1978-06-22|
    JPS53101228A|1978-09-04|
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    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU76MA2841A|HU175630B|1976-12-15|1976-12-15|Laser device for recording data and signal|
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