SU1234804A1 - Relief graphic device for recording optical information on moving medium - Google Patents

Abstract

The invention relates to the field of information and allows improving the quality of recording with an unevenly moving projected image. The carrier 3 is moved from a drive containing an electric motor and gears. The control unit of the speed of movement of the carrier 3 (BUSND) consists of sensors 42, 43, 44 controlling the speed of the image in the photograph plane, illumination and temperature. A slit diaphragm 26 with a slit adjustment means is associated with the BUSCH. The node 7 for the development of the carrier 3 consists of a reflector 9 and a vertically arranged spiral 10 connected to a power source. The cooling unit 8 consists of a half-cylinder, 4, in the end parts of which the hollow axles 5 with rollers 16 are formed along the forming part, and is located behind the node 7 of the phenomenon. Electric charging unit 28 and dispensing unit 29 are made in the form of frames 30, 31 and 4 to 4 oo 4: 3S

Description

1h {pgvoi along the lateral surface of blister-nl, on the frames 30 31, the corona threads 32 are vertically stretched, the projection of the image is provided by the lens 40; diaphragm which is associated with the actuator

The invention relates to the field of information5, in particular, to devices designed to record information (formatting on a photothermogshastic carrier) and can be used in aerial photography.

The aim of the invention is to improve the recording quality when the projected image is unevenly moved

FIG. shows a functional diagram of a relafographic device for recording optical information; and on a moving medium; figure 2 - the device section; Fig. 3 is a block diagram of the control unit of the speed of movement of the carrier.

The device comprises a drum 1 in the form of a pipe section with a selection of 2 on the outer cylindrical surface along the width of the carrier 3, ensuring its fixation vertically. The upper end of the drum 1 in the form of a disk with holes is rigidly seated on the axis of the AE connected to the kinematic scheme of movement of the carrier 3 consisting of an actuator actuator for moving the carrier - electric motor 5 - and gear 6. Inside the drum is located ysei: 7 heat proch events and the node 8 The node 7 consists of a reflector 9 and BepTHKaj ibHO located a spiral 10 connected to a power source, the Reflector 9 is made in the form of a semi-ellipse in cross section and together with the spiral 10 is fixed on a plate 11 movable along the lever 12 and rigidly connected to the axis of the additional element of the thermal unit manifestations of the solenoid 13, the cooling unit 8 consists of a half-cylinder 14, in the end parts of which, io () brauya1ie 1, the hollow core and IS are fastened to

oiiTH jecKoft system - micromotor 41, The means for installing the ventilating and cooling units to the optimal distance from the target diaphragm 26 and the surface of the carrier 3 are connected by a BBS I 3. n f-ly, 3 ip,

five

0

five

0

five

but

rotated rollers 16 are worn. The holes in the axles 15 are connected to a system that provides the circulating working fluid (freon), Node 8 cooling is movably (along the radius) fixed on the lever 17 and joints; with the executive unit of the cooling unit - salt-1-: house 18. Levers 12 and 17 sbapansirovan.o load 19 and fixed on the tubular axes 20 and 21 at a point coinciding with the center of rotation of the drum 1, which is also the chain; Throm their tins. Axes 20 and 21 are rigidly connected to gears 22 and 23 5 through which from the actuators of nodes 7 and 8 of electric motors 24 and 25, respectively, torque is transmitted to levers 12 and 17, which ensures movement of nodes 7 and 8 along the side surface of the drum (relative to slit diaphragm 26). The slit) ragma 26 is made in the form of opaque miacTHfj, the width of one goal between the two can be 51-1en with the actuator of the optical projection system 1 h projection; -1 the motor 27, the electric charge unit 28 and the charge node 29 and the identity - according to the design and r - shl-sh in the form of frames 30 and 31 along the curve of the lateral surface of the drum, on which the bark strings 32 are vertically pulled, electrically isolated from each other. The connection of the required number of threads to the high-voltage source 33 C is completely irradiated by the executive elements of the electric charging nodes 11 of the charging — relays 34 and 35, Kopo iijpy; ontHe the threads are shielded by screens 36. The clamping and leveling of the carrier 3 on the drum 1 is performed by rollers 37; sampled in width from 1m-1g to frame in order to prevent scrapping 1; Olif op. 1

The image recorded on the carrier 3 during transportation, the movement of the working fluid (freon) of the cooling unit - compressor 38. The carrier 3 is stored on the reels of the accumulator 39. The image is projected by the lens 40, the diaphragm of which is connected to the actuator of the optical projection system - micromotor 41

The operation of the device is ensured by the carrier speed control unit, consisting of sensors 42-4 controlling the image speed in the photographic plane, lightness and temperature, respectively, converters 45-47 analog — code, converters 48-58 code — analog and processor 59. In this case, the converters 48-49 are the control of the executive elements of the heat-generating unit 7, the converters 51-53 — the executive elements of the cooling unit 8, the converters 54-55 — the executive elements of the elements 28 and 29 are electrical The charging and charging points, respectively, the converters — the executive elements of the optical systems of the projection system and the converter 58 — the actuating element of the drive for moving the carrier. The processor 59, in the memory of which all the data about the carrier 3 and the shooting mode are stored, evaluates the control sensor signals and generates commands to control the actuators of the electric charging, thermal and cooling units, the optical projection system and the drive for carrier movement.

The device operates in two modes: preparatory and main.

The recording mode is set by the processor 59 by the operator.

In preparatory mode, the processor 59 includes sensors 42-44, converters 45-47 analog — the code that processes their information, and also drives converters 48-58, the analog — into an idle state. Preparatory mode provides preparation of the device for shooting.

In the transition from the preparatory mode to the shooting on the converters 48-58 from the processor 59 commands are received, as a result of which

- s 0

4 - 15 20 25 z e. . j

,

50

55

8044

(The control signals for the corresponding actuator and | 1X elements are adjusted. Depending on the signal from sensor 42, 1 converted to code in converter 45, processor 59 sends a command to converter 58, and the control signal goes to electric motor 5, which through gear 6 and axis 4 drives the drum 1 with the carrier 3, which is pressed by the pressure rollers 37, while the recess 2 provides the carrier for fixing it vertically. Additional elements. The corresponding number of corona filaments 32 of electrical charging unit 28 and charging unit 29 is switched on from high-voltage device 33 by means of relays 34 and 35, which are controlled by converters 54 and 55, respectively. Exposure time

H K t, .cn.

where t, is the charging time;

  exposure time; K | - coefficient, and depends on

media type 3.

The charging time at a given exposure can be ensured by the condition N K,

H - G

where N is the number of connected corona threads; K, is the coefficient characterizing the charging device; V is the speed of movement of the drum I.

Similarly, the dosing time and the number of threads of the dosing unit are determined. Thus, the required charging and charging time for changing the speed of the drum 1 is provided by connecting the appropriate number of corona filaments 32.

The time of occurrence characteristic of this carrier 3 is provided

heating unit 7, consisting of a reflector 9, made in the form of a semi-ellipse, in one of the focuses of which is located the spiral 10. The electric motor 25 through the brush 23 rotates 12 with the heater 7. The angle of rotation of the lever is 12

where r

tnP

relative to the center of the slit diaphragm-N-PL 26 is determined by the expression

S arctg,

radius of the drum 1;

time of occurrence.

Turning the lever 12 by the angle oi, depending on the speed of movement of the drum 1, provides the necessary ratio between the end of the exposure (slit width 26) and the beginning: of thermal manifestation. The motor 25 of the lever 12 is controlled by a converter 48. The shape of the reflector 9 provides focusing of the radiation in the second focus with a divergence angle, the magnitude of which depends on the size of the slit 5 of the time the carrier 3 develops and remains constant for this heater. In this case, the dpina of the developed zone 1 will be determined by the expression

  2d tg I,

where d is the distance from the second focus of the ellipse to the side surface of the drum I. The required development time at a given temperature and change in velocity V is kept constant by a proportional change in length: developed area by selecting the required distance from the second focus of the ellipse to the side surface of the drum 1 d using a solenoid 13, which is controlled by the converter 49. The heat of the developed zone 1 must be supplied q

q s- TK,

where c is the heat capacity of the material of the drum 1 f

temperature of appearance is necessary; coefficient taking into account the loss of heat in the environment.

If Q is the heat released by the spirals 10, then in the second focus of the reflector 9 Q will be collected, where b is the coefficient g: useful action, taking into account the reflectivity. From here on land 1 falls

a 1-9- JL9 1 2d tg 1

T to

The change Q is achieved by changing the voltage on the spiral IO, which

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five

about

five

five

five

/ arctg --- arctgK

performed by converter 50.

The cooling mode of the carrier 3 has a large value, since it determines the quality of the recorded image and is determined by the specified carrier. The angle of rotation of the lever 17 of the cooling unit 8 with respect to the slit diaphragm when the speed V is changed is determined by the angle

1 + 1. 2dtgjy2 + l

R

where 1 is the length of the section of the drum 1 where the temperature drops from the manifestation temperature to the solidification temperature of the thermoplastic layer of the carrier 3.

Cooling is carried out by the heat of the working fluid (freon) circulating through the hollow axles 15 of the rollers 16, which are in contact with the side surface of the drum 1. The motor 24 is controlled by the converter 51, and the solenoid 18, which ensures contact rollers 16 with a drum 1, a converter 52. The cooling mode (movement and temperature of the working fluid) is carried out by a spring 38 and is controlled by a converter 53.

The required recording exposure is determined by the expression

“E. t ,,,

where E is the bondage on the surface of the carrier 3; t ,, time of exposure. During slit shooting, the exposure time is t: 1 / V where 1 is the width and spruce between the plates 26, V is the speed of movement of the carrier 3. The control of the expansion is realized as a change in the illumination by changing the objective lens 40 aperture and by changing the width of the projected slit; In this case, the micro-motor of the male-27 unit is controlled by the converter 56, and the micro-motor 4i of the diaphragm is controlled by the converter 57.

The feeding of the unexposed carrier onto the drum 1 and the receiving of the storage device 39 which is inserted from the reels is carried out by pressure rollers 37, which are controlled by the converter 58.

The process of shooting is controlled by the processor 59, which receives all data about the change of shooting parameters from sensors 42, 43 and 44 through converters 45, 46 and 47 as a result of processing this data, processor 59 commands the appropriate converters 48-58 to control performance and elements.

Claims (2)

1. A relief device for recording optical information on a moving medium containing a carrier moving drive, optical image projection system on the carrier, electrical charging and thermal drawing nodes, characterized in that, in order to improve the recording quality when the projected image is unevenly moving It contains a carrier speed control unit for synchronous movement with the projected image of "P g. 2 34804 neither eat ten , slit diaphragm with means for adjusting the width of the slit associated with the speed control unit, carrier cooling unit located behind the development unit in the direction of movement of the carrier and associated with the carrier speed control unit installing means for installing the cooling and control units at optimal distances x from the slit diaphragm and the surface of the carrier. 2. The device according to claim. characterized in that the control unit of the speed of movement of the carrier includes sensors controlling the speed of the projected image, the illumination in the optical image and the temperature of the carrier in the zones of manifestation, each of which is connected via a processor respectively to a drive for moving the carrier and executive elements of the control means the width of the slit and the means of installation of the nodes of the development and cooling at optimal distances from the slit diaphragm and the surface of the carrier. (riz. 5