JP2001096725A - Stroboscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate a strobo flashing light period so as to automatically rapidly bring the period into good coincidence with a passing period of a subject to be irradiated. SOLUTION: Instead of a volume regulation of a conventional strobo flashing light period by an operator, light irradiating input conditions such as a printing speed value, a printing plate cylinder diameter or the like are input from an input unit 13, and set. A controller 14 calculates an irradiating period based on a control program by using the input conditions, controls an oscillation circuit 9 so as to obtain an irradiating timing pulse of the calculated period, and outputs the pulse to a trigger generator 6 through a photocoupler interface 8. The generator 6 outputs a lamp voltage from a high voltage generator 5 to a lamp unit 2 synchronously with the pulse and irradiates a printing frame image with the flashing light synchronized with the time for sending the image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stroboscope which is used, for example, for checking a picture in a printing apparatus and which periodically irradiates a moving object such as a printing film with a flash.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a plurality of color patterns are sequentially superimposed on a film 101 and a multi-color printed frame image 102 is continuously formed by a printing rotary plate cylinder provided for each of a plurality of colors. There is a printing device that performs printing. In a picture check (color misregistration check, etc.) in this printing apparatus, a frame image 10 on a film 101 moving at high speed in one direction A
2, as shown in FIG.
, The strobe flash B was periodically emitted, and the operator visually checked the pattern of the frame image 102.

[0003] In the visual check of the frame image 102, the operator sees whether the frame image 102 is flowing forward or backward, and operates the volume 104 until the frame image 102 looks stationary. To adjust the strobe flash cycle. Frame image 10
When the passing period (time when natural number of frame images pass) of No. 2 coincides with the strobe flash period (image capturing period), the frame image 102 can be seen as stationary, and the frame image 102 It is possible to observe color misregistration, dirt, and the like of each multicolor printed pattern.

[0004]

However, in the above-described conventional static image observation, the operator sets the strobe flash cycle to the strobe scope 1 so that the frame image 102 appears to be stationary.
The manual adjustment is performed using the volume 104 of the control unit 03. The adjustment requires skill, and if this static image adjustment takes a long time, a large number of substrates (films) are printed before the pattern check of the frame image 102 starts. There was a problem that it flows wastefully.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a stroboscope that can automatically and satisfactorily adjust a strobe flash cycle to a passage cycle of an object to be illuminated quickly and satisfactorily. The purpose is to:

[0006]

According to the present invention, there is provided a stroboscope for irradiating an object to be illuminated with a flash periodically from a luminous means, wherein the luminous cycle is calculated based on a set luminous condition. Means, a light emission timing pulse generating means for outputting a light emission timing pulse in accordance with the calculated light emission cycle, and a light emission drive means for supplying light emission power to the light emission means based on the light emission timing pulse. It is. Preferably, in the stroboscope of the present invention, in a stroboscope for periodically irradiating an illuminated object with a flash from a light emitting means, a light emitting condition setting means for inputting and setting a light emitting condition, and a set light emitting condition Light emission cycle calculation means for calculating a light emission cycle based on the light emission timing, light emission timing pulse generation means for outputting a light emission timing pulse according to the calculated light emission cycle, and light emission drive for supplying light emission power to the light emission means based on the light emission timing pulse Means. The irradiation target is a band-like body (for example, a film) on which a frame image is continuously printed, or an object that continuously passes at a relatively high speed. The light emission conditions may be set in advance, or may be individually set by light emission condition setting means.

With this configuration, if a flash condition is input instead of the volume adjustment of the strobe flash cycle by the operator, the flash period is calculated based on the set flash condition, and the flash according to the calculated flash period is calculated. Since the output is performed, it is possible to automatically and satisfactorily automatically match the passage period of the continuously illuminated object with the strobe flash period.

Preferably, in the stroboscope of the present invention, an input means capable of inputting a light emission condition and a display screen for inputting the light emission condition are displayed, and the numerical value is displayed on the input display screen by a numerical input command from the input means. There is a display control means for displaying, and a light emission condition setting means for setting the light emission condition represented by the numerical value for the light emission cycle calculation.

With this configuration, the luminous output is performed at the luminous cycle based on the luminous condition only by inputting the numerical value of the luminous condition while checking the display screen for inputting the luminous condition, so that the numerical input of the luminous condition is easy. It is possible to automatically and quickly and satisfactorily match the passage period of the irradiation object with the strobe flash period automatically.

Further, preferably, the stroboscope of the present invention is a stroboscope in which a printed body (for example, a film) after passing through a printing plate cylinder of a printing apparatus is an object to be irradiated, and a light emitting condition includes a printing speed value and a printing speed. This is data on the plate cylinder circumference. The data relating to the printing speed value and the printing plate cylinder circumference value may be the printing speed value and the printing plate cylinder circumference, or may be the printing speed value and the printing plate cylinder circumference. Further, the printing speed value and the data relating to the printing plate cylinder circumferential value are as follows.
The printing speed value and the printing plate cylinder circumference may be data obtained by calculation.

With this configuration, if data relating to the printing speed value and the printing plate cylinder circumference value is input or set in advance, a light emission cycle is calculated based on these, and a light emission output corresponding to the calculated light emission cycle is calculated. Is performed, it is possible to automatically and satisfactorily match the passage period of the print frame image as the object to be irradiated with the strobe flash period quickly, so that the continuously flowing print frame image appears stationary. Therefore, when the irradiation target is a print target, it does not take much time for static image adjustment (stop motion adjustment) in the picture check, and the print target is less likely to be wasted.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a stroboscope according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a control configuration of a stroboscope according to an embodiment of the present invention. In FIG. 1, a stroboscope 1 includes a lamp unit 2 as a light emitting unit capable of irradiating a strobe flash, a battery 3 as a built-in DC power supply, a power input unit 4 for inputting an external power, and a high voltage for generating a lamp voltage. A voltage generator 5, a trigger generator 6 for applying a lamp voltage to the lamp 2 at a predetermined timing, a DC power supply 7, a photocoupler interface 8, an oscillation circuit 9 as an internal synchronization signal source, and an external input interface 10 and external output interface 1
1, a display unit 12 composed of a liquid crystal display device, an input unit 13 capable of inputting numerical input commands and various control commands, and a control unit 1 for controlling each unit according to various commands from the input unit 13.
4 is provided.

As shown in FIG. 2, the lamp section 2 has a large reflector 21 and a xenon lamp 22 disposed at the center of the reflector 21. The light is reflected by the reflecting mirror 21 so as to efficiently irradiate an object to be irradiated (for example, a frame image on a print film surface). Also, as shown in FIG.
The lamp unit 2 is disposed on the front of the case body 15 of the stroboscope 1, and the front of the lamp unit 2 is protected by a transparent acrylic plate 151. An outer peripheral protection rubber 152 is provided at an outer peripheral corner of the acrylic plate 151, and the case main body 15 is protected by the outer peripheral protection rubber 152.

The battery 3 is a rechargeable battery such as a nickel hydrogen battery or a lithium ion battery.
Are exchangeably accommodated in the lower surface of the. A battery charger (not shown) for charging the battery 3 is provided inside the case body 15.

The power input unit 4 is composed of an external DC power terminal shown in FIG. 3. When a DC (DC) connection terminal side of an AC (AC) adapter is connected to the power input unit 4, a battery charger (not shown) is connected. The battery 3 can be charged through the battery, and electric power for driving the strobe flash operation of the strobe scope 1 can be supplied.

The high voltage generator 5 is composed of a step-up switching regulator, and boosts the power supply voltage from the battery 3 or an AC (AC) adapter via the power supply input unit 4 to a predetermined lamp voltage.

The trigger generating section 6 supplies the lamp voltage from the high voltage generating section 5 to the lamp section 2 by being triggered by a light emission timing pulse described later. The high voltage generator 5 and the trigger generator 6 constitute a light emission drive unit.

The DC power supply unit 7 is provided with a predetermined power supply for driving the photocoupler interface 8, the oscillation circuit 9, the external input interface 10, the external output interface 11, the display unit 12 and the control unit 14 from the DC power supply voltage from the power supply input unit 4. It converts to DC power supply voltage.

The photocoupler interface 8 transmits a light emission timing pulse for activating the trigger generator 6. The photocoupler interface 8 is provided between the trigger generation unit 6 and the control unit 14 because the activation voltage level of the trigger generation unit 6 and the voltage level of the light emission timing pulse from the control unit 14 are different. This is to prevent noise from the side from entering the control unit 14 side.

The oscillating cycle of the oscillating circuit 9 is controlled by the control unit 14 to generate a predetermined internal synchronization light emission timing pulse.

As shown in FIG. 3, the external input interface 10 and the external output interface 11 are constituted by photocoupler interfaces having external input / output terminals disposed on the back of the case body 15, and emit light timing pulses during internal synchronization. Is output to, for example, the printing control device as a synchronization signal, and a synchronization signal can be input from the printing control device as a light emission timing pulse during external synchronization. The reason why the photocoupler interface is used here is that the voltage level on the external side and the voltage level on the control unit 14 are matched, and noise from the external unit
This is in order not to enter the 4 side.

The display unit 12 is a liquid crystal display screen 12 shown in FIG.
1, a power-on display, a lot number display, an initial display (light emission cycle setting display; mode 4), and various mode displays (modes 1 to 4 in the present embodiment). 8), various displays such as a battery display (voltage display and charge request display), a display of an accumulated use time of a lamp, a battery, and the like.

As shown in FIG. 3, a power switch 131, a mode setting switch 132, a dial switch 133, an imposition switch 134, and a phase adjuster are provided on the back of the case main body 15 of the stroboscope 1. A switch 135 is provided, and various commands are issued to the control unit 14. Power switch 13
1. Mode setting switch 132 and imposition switch 1
Reference numeral 34 denotes a push button switch. Further, the dial switch 133 is of a rotary encoder type, and can detect the angle of turning the dial, and has a built-in push button switch, and can output a setting command and the like by pressing a central portion. I have.
The phase adjustment switch 135 is formed in a seesaw shape. When one end is pressed, one push button switch is operated, and when the other end is pressed, the other push button switch is operated.

The control unit 14 is a CPU (Central Processing Unit)
A display control unit 142 for performing various display controls on the display unit 12 based on a control program and data in the storage unit 141 in response to various commands from the input unit 13. And a storage control unit 143 that performs setting control on the storage unit 141. Specifically, the control unit 14 receives a mode setting command by turning on the mode setting switch 132, sets the mode to the mode selection mode, and controls to select various modes by dialing the dial switch 133. In addition, when the mode setting switch 132 is not turned on, the control unit 14 controls so as to be in an initial setting mode (mode 4 described later). Further, if the mode setting switch 132 is pressed once again (again) or the dial switch 133 is not operated within a predetermined time (for example, 50 seconds) after the mode setting switch 132 is turned on, the control unit 14 sets the mode. Control is performed to release the selection mode and return to the original initial setting mode (mode 4 described later).

In the initial setting mode, the display control means 142 receives a mode selection command corresponding to the dial angle by the operator turning the dial of the dial switch 133, and displays various modes 1 to be described later on the display screen 121. The mode selection is enabled by sequentially switching and displaying the input screens (a to h in FIG. 4) to (8), and when the center part of the dial switch 133 is pressed, the displayed mode is determined. Various numerical values can be input on the input screen.

After setting the various modes, the display control means 142 switches the numerical value in the increasing direction by turning the dial clockwise to display it on the display screen 121, and turns the numerical value by turning the dial counterclockwise. The control is performed so as to switch to the decreasing direction and display on the display screen 121. In this case, when the dial is turned at a speed equal to or higher than a predetermined speed (for example, half-turn of the dial is 1 second or 10 clicks per second), the display control unit 142 detects this and performs coarse adjustment (a numerical value greatly changes). Display screen 121
When the dial is turned at a speed less than the specified speed, the value is detected and fine-tuned (the value changes slightly)
The display of the numerical value on the display screen 121 is controlled so as to perform this.

Further, the display control means 142 can perform the following various display controls on the display unit 12 in addition to the various mode input screen display and the numerical value input display described above. I have.

When the power is turned on by the power switch 131, the power-on display and the lot number are displayed on the display screen 121 as "POWER UP" as shown in FIG. In the embodiment, 3
(Second), and thereafter, the display shifts to the above-described initial display (mode 4 described later).

In the battery display, the battery voltage is constantly monitored, and the voltage is displayed on the display screen 121 as shown in FIGS. 5A and 5E. A warning is displayed on the display 121 by displaying a charge request display "JUDEN" as shown in FIG. After the charge request is displayed, the power is automatically cut off after a predetermined time, but until then, the charge request is continued. The charging request is canceled by connecting an AC adapter to the power input unit 4.

Further, when the accumulated use time exceeds a predetermined endurance time, a lamp replacement request display or a battery replacement request display is displayed on the display screen 121 for a predetermined time every predetermined time, and the battery 3 and the xenon lamp 22 are displayed. If the accumulated use time is cleared at the time of replacement, the accumulated use time display is canceled (reset). The accumulated use time is cleared by pressing the central portion of the dial switch 133 for 5 seconds or more in the accumulated use time display state.

The storage control means 143 controls the mode and numerical value displayed on the display screen 121 to be registered in the storage means 141 in accordance with a setting command output by pressing the center portion of the dial switch 133. Control is performed so that various calculation results and the like are registered. In a mode 8 described later, the storage control unit 143 stores the various setting contents at the end of the operation even after the power is turned off.
41 is controlled so as to maintain the state stored therein.

Next, the light emission control function will be described. The control unit 14 calculates the printing drum cylinder circumference from the printing drum diameter based on the control program and data in the storage unit 141, the printing cylinder circumference calculating unit 144, the printing cylinder circumference and the input printing It has a light emission cycle calculation means 145 for calculating a light emission cycle value based on the speed, and a timing pulse control means 146 for controlling a light emission timing pulse corresponding to the calculated light emission cycle value.

The plate cylinder circumference calculating means 144 calculates the plate cylinder circumference by inputting the plate cylinder diameter in mode 1 described later. The storage means 141, the storage control means 143, and the plate cylinder circumference calculating means 144 constitute light emission condition setting means (not shown). For example, the printing apparatus has a plate cylinder diameter (diameter) of 125 mm and a printing speed of When printing is performed for 60 minutes, the calculated plate cylinder circumference is stored in the storage controller 1.
43, the light emission condition is set in the storage means 141, and after setting the light emission condition setting mode 4 by the dial switch 133, the print speed of 60 m / Min is input as a numerical value from the dial switch 133, and the print speed is 60 m / Mi.
n is set as a light emission condition in the storage means 141 by the storage control means 143.

The light emission cycle calculating means 145 calculates a time T per one rotation of the printing drum of the printing apparatus as a light emission synchronization timing (light emission cycle), and the printing speed SP = 60.
m / Min = 1 m / Sec, plate cylinder circumference L = plate cylinder diameter φ1
25 mm × π, therefore, the number of rotations per unit time C = SP / L = 1000 / 125π = 2.5464
..Rotation / Sec, T = 1 / 2.5464
= 0.3926 ·· Sec / rotation.

The timing pulse control means 146 controls the oscillation circuit 9 to calculate the calculated light emission cycle value (0.3926
... Sec / rotation), and outputs the light emission timing pulse to the trigger generator 5 via the photocoupler interface 8. The oscillation circuit 9 and the timing pulse control unit 146 constitute a light emission timing pulse generation unit (not shown).

Further, the light emission control adjusting function will be described. The control unit 14 can change the light emission cycle to a natural number times (up to 6 times in the present embodiment) by an operation command from the imposition switch 134 based on a control program. That is, for example, when the imposition switch 134 is pressed 0 times, the light emission cycle becomes 1 time, when it is pressed once, twice the light emission cycle,... 5 times, the light emission cycle becomes 6 times, and when it is pressed 6 times, the light emission cycle becomes 1 time. The light emission cycle can be sequentially changed to a natural number multiple so as to return.

In the fine adjustment control in the static image observation of the print pattern, the control unit 14 emits light every time the operation command from the phase adjustment switch 135, that is, the upper side of the phase adjustment switch 135 is pressed, based on the control program. The cycle is delayed by a predetermined amount and returned, and the picture display position is up (leading phase)
, And every time the lower side is pressed, the light emission cycle is advanced by a predetermined amount to lower the picture display position to the lower side (lag phase).
The movement of the visible position of the picture is controlled so as to move the picture by a predetermined amount.

Here, the contents of the various modes 1 to 8 will be specifically described. Mode 1 is a mode for inputting and setting the plate cylinder diameter. When a mode selection command is issued by the dial switch 133, a plate cylinder circumference input screen of mode 1 is displayed on the display screen 121, and numerical values are inputted by the dial switch 133. 4a, a screen cylinder diameter input screen as shown in FIG. 4a is displayed on the display screen 121, and the center of the dial switch 133 is pressed to store the plate cylinder circumference.
When it is set to 41, the control unit 14 calculates the plate cylinder circumference from the numerically input plate cylinder circumference based on the control program and stores it in the storage means 141.
Are referred to when calculating the light emission cycle.

The mode 2 is a mode for setting a light emission stop timer value used for stopping the light emission of the lamp when it is not used, and the mode selection command by the dial switch 133 as shown in FIG. The input screen of the stop timer value is displayed on the display screen 121, and 9
By inputting a numerical value by the dial switch 133 in units of one minute up to 0 minutes, the time until the light emission stops (OFF) can be input and displayed on the display screen 121, and is displayed when the center part of the dial switch 133 is pressed. The numerical value (05 in FIG. 4B) is set in the storage unit 141. In the re-emission control after the operation of the light emission stop timer, the control unit 14 detects the switch operation of the operator starting to turn the dial switch 133 or operating any other switch based on the control program to emit the lamp light. To get started.

Mode 3 is a mode for setting the maximum value of the light emission cycle (frequency). A mode selection command from the dial switch 133 causes a maximum value setting input screen of the light emission cycle of mode 3 to be displayed on the display screen 121. If a numerical value is input by the switch 133, the maximum value of the light emission cycle (frequency) is changed to the display screen 121 as shown in FIG.
Input is displayed above. By pressing the center of the dial switch 133, the input numerical value is set in the storage means 141. As a result, control is performed such that the upper limit frequency of the oscillation circuit 9 as an internal signal generator is fixed by the control unit 14, and unnecessary setting of the light emission cycle exceeding the upper limit frequency can be canceled.

Mode 4 is a mode for switching the display mode of the light emission cycle. When the mode 4 is selected, or when the initial setting mode is not selected, the display mode of the light emission cycle is switched as shown in FIG. Is displayed on the display screen 121, and the display on the display screen 121 is sequentially inverted by a selection command by the dial rotation of the dial switch 133, so that the light emission period (number of light emissions) per minute and the printing speed (every Print length) and frequency.

In the mode 4, when the light emission cycle setting is selected, as shown in FIG.
M) can be set by inputting numerical values while adjusting the dial switch 133. When the frequency setting is selected, the internal frequency (Hz) can be set by inputting a numerical value with the dial switch 133 as shown in FIG. Further, when the print speed setting is selected, the print speed setting shown in FIG.
By inputting the print speed (M / MIN) as a numerical value as shown in (1), the control unit 14 controls the light emission at the light emission cycle automatically calculated using the input print speed and the already calculated plate cylinder circumference. It has become. The printing speed displayed on the display screen 121 is set to .0 by the dial switch 133.
It is variable in units of 01 m / min and can be finely adjusted.

Mode 5 is a synchronous signal selection setting mode for performing a switching setting between use of the internal oscillation circuit 9 and use of the external synchronous signal. The mode 5 internal / external switch setting screen is displayed by a mode selection command from the dial switch 133. When the display is displayed on the screen 121 and the switching input is performed by the dial switch 133, the display screen 12 is displayed as shown in FIG.
1, the oscillation output (light emission timing pulse) from the oscillation circuit 9 is output to the connector (external output interface 11) at the time of the internal synchronization, the oscillation circuit 9 does not operate at the time of the external synchronization, and the connector (the external input interface 10). ) Automatically becomes an external input terminal. In the external synchronization mode, the display is automatically switched to the frequency display and the input light emission cycle is automatically calculated and displayed.

Mode 6 is an hour meter mode of lamp use time R / battery use time B. A display screen of the total use time of R or B in mode 6 is displayed on the display screen 121 in response to a mode selection command by the dial switch 133. Then, when R (or B) is switched and input by the dial switch 133, the accumulated use time of R or B is displayed on the display screen 121 as shown in FIG. This can be used as a guide to know the number of times the xenon tube has been used and the time to replace the battery 3.

Mode 7 is an output selection mode at the time of internal synchronization. In response to a mode selection command from the dial switch 133, an output selection screen at the time of internal synchronization of mode 7 shown in FIG.
If an ON / OFF switching input is made by 3, an internal synchronization signal is output to the outside when necessary at the time of internal synchronization.

Mode 8 is a mode in which various setting contents at the end of the operation are stored in the storage means 141, and the mode selection command from the dial switch 133 causes h in FIG.
The setting content storage selection screen of mode 8 shown in FIG.
Displayed on 1 and turned ON by dial switch 133
When the switch input of / OFF is performed, the character on the selected side on the display screen 121 is inverted. Therefore, by storing the final setting state before the power is turned off, it can be used immediately when the power is turned on next time. The control unit 14 controls the lamp unit 2 to stop emitting light during the operation of the function setting modes 1 to 8 described above. In addition, the control unit 14 stores the light emission cycle (light emission frequency) in the storage unit 141 even after the power is turned off, and retains the set storage contents even when the battery 3 is replaced. I have.

The operation of the above configuration will be described below. FIG. 6 is a flowchart showing an example of the operation of the stroboscope in FIG. First, in step S1, when the power switch 131 of the stroboscope 1 is turned on, in step S2, the model number (D1) is displayed on the display screen 121 together with the "POWER UP" display as shown in FIG.
0DC) and the production number display (99MA05) are displayed for only 3 seconds, and the battery voltage is displayed.

Next, in step S3, it is determined whether the mode setting switch 132 has been operated for various mode selection operations. If it is determined in step S3 that the mode setting switch 132 has been operated, step S4
It is determined whether or not the mode 1 is selected by the dial switch 133. When the mode 1 is selected, if there is an input of the plate cylinder circumference in step S5, the plate cylinder circumference is calculated in step S6. In step S7, the storage unit 141 stores the calculated plate cylinder circumference in the storage unit 141.
Is set to

Next, in step S8, it is determined whether or not mode 2 has been selected by the dial switch 133. If mode 2 has been selected, the flash stop timer value can be set in step S9. The value is input numerically and the storage control means 14
3 is set in the storage means 141.

Further, in step S10, it is determined whether or not mode 3 is selected by the dial switch 133. If mode 3 is selected, the maximum value of the light emission cycle (frequency) can be set in step S11. The maximum value of the light emission cycle (frequency) is input as a numerical value, and is set in the storage means 141 by the storage control means 143.

In step S12, it is determined whether or not the mode 4 is selected by the dial switch 133. If the mode 4 is selected, the number of times of light emission (F), the printing speed (M / M) and the frequency (Hz) are determined. The display can be switched to any one. Details will be described later.

Further, in step S13, it is determined whether or not the mode 5 is selected by the dial switch 133. If the mode 5 is selected, the use of the oscillation circuit 9 / the use of the external synchronization signal is switched by the dial switch 133 in step S14. Setting is possible.

In step S15, it is determined whether or not the mode 6 is selected by the dial switch 133. If the mode 6 is selected, the display of the lamp use time R / battery use time B is switched and displayed by the dial switch 133 in step S16. And the lamp usage time R /
It is also possible to reset (clear) the integration of the battery usage time B. To reset (clear), press the dial switch 133 for 5 seconds or more.

Further, in step S17, it is determined whether or not mode 7 is selected by the dial switch 133. If mode 7 is selected, in step S18 the internal signal is output to the external by the dial switch 133 if necessary at the time of internal synchronization. Can be set to be output to

Further, in step S19, it is determined whether or not the mode 8 is selected by the dial switch 133. If the mode 8 is selected, the various setting values at the end point are stored in the storage means 141 in step S20. It becomes possible.

Here, in addition to the case where the mode setting switch 132 has not been operated for a predetermined time or more after the power is turned on in step S3 (NO), the mode setting switch 132 is operated (turned on) in step S12 and the dial switch 13 is turned on.
Even when the mode 4 is selected by 3, the mode automatically shifts to the light emission cycle adjustment mode of the mode 4, and an input screen for light emission cycle selection is displayed on the display screen 121 in step S <b> 21. On this input screen, the number of times of light emission (F), the printing speed (M / M), and the frequency (Hz) are displayed. In steps S22 and S23, the control unit 14 determines which one has been selected by the dial switch 133. Is done.

In the above step S22, the dial switch 1
When "print speed (M / M)" is selected by the user 33, a print speed input screen is displayed in step S24, and the print speed is input by the dial switch 133 on this input screen. The light emitting cycle is calculated using the set printing speed and the set plate cylinder circumference, and in step S26, the timing pulse is output to the trigger generating unit 6 based on the calculated value.
The lamp unit 2 periodically emits light with the lamp voltage from
The object to be monitored (printed film) is irradiated with a strobe flash.

When "number of flashes (F)" is selected by the dial switch 133 in step S23, the number of flashes per minute is input by the dial variable adjustment of the dial switch 133 in step S27.
At 26, a light emission timing pulse is obtained based on the variable number of times of light emission, the light emission timing pulse is output to the trigger generation unit 6, and the lamp unit 2 is periodically caused to emit light by the lamp voltage from the trigger generation unit 6, The object to be monitored (printed film) is irradiated with a strobe flash.

In this case, the dial variable adjustment of the number of times of light emission is performed by visually confirming that the pattern of the
Although it appears to be heavy or triple, or appears to flow in a certain direction, the number of flashes per minute increases (the light emission cycle becomes faster) when the dial of the dial switch 133 is rotated right, and the number of flashes is increased when the dial is rotated left. The number of flashes per minute is reduced when the dial operation of the dial switch 133 is stopped and the center part is pressed when the flow of the pattern is visually observed in a single image so that the flow of the pattern stops by visual observation. (Emission cycle) is determined.

If "frequency display (Hz)" is selected by the dial switch 133 in step S23, an input screen for emission frequency display is displayed on the display screen 121 in step S28, and the frequency is set by the dial switch 133. Set variably. The set light emission frequency is automatically converted to a light emission cycle in step S25, and is displayed on the display screen 121 together with the light emission frequency. In the external synchronization mode or the like, the mode is automatically switched to “frequency display (Hz)”, the input light emission cycle is calculated, and displayed together with the light emission frequency. Further, the process proceeds to step S26, in which an object to be monitored (print film) is irradiated with a strobe flash having a predetermined frequency.

Further, when the central portion of the dial switch 133 is pressed for 2 seconds or more in step S29, the mode can be shifted to the mode selection mode, and various modes 1 to 8 can be sequentially selected by dial operation of the dial switch 133. . In this mode selection mode, control is performed so as to stop the irradiation of the flash light.

Further, if the operation of pressing the center portion of the dial switch 133 for 2 seconds or more is not performed in step S29, the process shifts to the phase adjustment processing of the frame image (print pattern) in step S30. Adjustment of the display position of the frame image by visual observation (phase adjustment) is such that each time one end of the phase adjustment switch 134 is pressed, the visually displayed pattern display position moves in one direction, and the other end of the phase adjustment switch 134 is moved. Each time the button is pressed, the picture display position moves in the opposite direction. The phase adjustment switch 134 may be operated so that the printed picture (frame image) is at the proper display position (the center position of flash irradiation).

Thereafter, in step S31, the power switch 1
Steps S26, S29, S3 until 31 is shut off
Each process of 0 is repeated.

In the case where the device is left with light emission,
The light emission of the lamp unit 2 stops after the light emission stop timer set in the mode 2 elapses. If the lamp usage time integrator is set at the time of lamp replacement, it is reset.
Further, when charging the battery, the power switch 131 is turned off.
Then, connect the DC plug side of the AC adapter to the DC power supply terminal (power supply input unit 4) on the back side of the case body.
When the AC outlet of the C adapter is connected to a commercial power supply, charging starts. In addition, it can be used with the AC outlet of the AC adapter connected to a commercial power supply, but cannot be charged at high speed. Although not particularly described in the present embodiment, it is configured such that full charge is detected and charging is stopped.

Here, the printing apparatus will be briefly described with reference to FIG. In FIG. 7, a printing plate cylinder 10 is provided for each color.
5a to 105c are provided, and after the printing film 107 supplied from the roll 106 passes through the printing plate cylinder 105a and a pattern of a specific color is printed, the drying unit 1
08a is dried by passing through another printing plate cylinder 105b, and then a specific color picture is printed by passing through another printing plate cylinder 105b, and then dried by passing through a drying unit 108b, and further dried by another printing plate cylinder 105c. , A specific color pattern is printed, and then dried by passing through the drying unit 108c, so that each printing rotary plate cylinder 10 provided for each of a plurality of colors is printed.
By 5a to 105c, the frame images of a plurality of colors are sequentially superimposed on the printing film 107, and the multi-color printed frame images are continuously printed in the longitudinal direction.

When the operator prints the print film 107 at a predetermined printing speed while printing, the stroboscope 1
The various light emission conditions are input and set, and the light is emitted at a predetermined light emission cycle, and the light is emitted to the printing film 107.
The top frame image 07 is made to look still. The operator looks at the still frame image, visually inspects the printing position deviation of the characters and the pictures of the frame image printed for each color, and determines the color and the number of the printing cylinders among the printing rotary plate cylinders 105a to 105c. The operator grasps the direction of the picture and how much the picture is displaced, and inputs the correction color, the correction direction, and the correction amount from the operation unit (not shown) of the printing apparatus and corrects the image. Then, it is confirmed by visual inspection whether or not the characters and patterns printed for each color match.

In this case, the light emission speed (M
If / M) is selected, instead of the conventional volume adjustment of the strobe flash period, light emission input conditions such as a printing speed value and a printing plate cylinder diameter are input from the input unit 13 and set, and the light emission input conditions are used. Then, the control unit 14 calculates the light emission cycle based on the control program, and outputs the light emission timing pulse of the calculated light emission cycle to the trigger generation unit 6 via the photocoupler interface 8. The trigger generator 6 outputs the lamp voltage from the high voltage generator 5 to the lamp 2 in synchronization with the timing pulse. This makes it possible to irradiate the print frame image with a strobe flash synchronized with the time at which the print frame image is sent. In this way, the period of passage of the object to be irradiated and the period of strobe flash can be automatically and satisfactorily matched with each other, so that continuously flowing frame images can be viewed as still.

In the present embodiment, the printing speed value and the printing plate cylinder diameter of the printing apparatus are inputted and set, the light emission cycle is calculated based on these values, and the light emission output is performed according to the calculated light emission cycle. However, the present invention is not limited to the printing speed value and the printing plate cylinder diameter in the printing apparatus, and other setting light emitting conditions (for example, the printing speed value and the printing plate cylinder circumference) are input, and based on the set light emitting condition. Calculate the light emission cycle,
The light emission output according to the calculated light emission cycle can be performed.

[0070]

As described above, according to the first aspect, instead of adjusting the volume of the strobe flash cycle by the operator,
If the light emission conditions are input and set, the light emission period is calculated based on the set light emission conditions, and the light emission output is performed according to the calculated light emission period. Can be automatically matched quickly and satisfactorily.

According to the second aspect of the present invention, the luminous output is performed at the luminous cycle based on the luminous condition only by inputting the numerical value of the luminous condition while checking the display screen for inputting the luminous condition. Numerical values can be easily input, and the passing period of the irradiation target and the strobe flash period can be quickly and satisfactorily matched.

Further, according to the third aspect, if the printing speed value and the printing plate cylinder diameter are inputted and set, the light emission cycle is calculated based on these printing speed values and the printing plate cylinder diameter, and the calculated values are calculated. Since the flash output is performed according to the flash cycle, the pass cycle of the print frame image and the strobe flash cycle can be automatically and satisfactorily matched so that the continuous print frame image looks static. can do.
Therefore, in the case where the irradiation target is a printing target, it is possible to reduce the time required for the stop motion adjustment in the picture check and to avoid wastefully flowing the printing target.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a control configuration of a stroboscope according to a first embodiment of the present invention.

FIG. 2 is an external view showing a front configuration of the stroboscope of FIG.

FIG. 3 is an external view showing a rear surface configuration of the stroboscope of FIG. 1;

4A to 4H are input screen diagrams in various modes in the stroboscope of FIG. 1;

5A to 5E are views showing various display screens at the time of a predetermined operation in the stroboscope of FIG. 1;

FIG. 6 is a flowchart illustrating an example of an operation of the stroboscope in FIG. 1;

FIG. 7 is a schematic diagram for explaining a schematic configuration of a printing apparatus.

FIG. 8 is a schematic diagram illustrating a planar configuration of a printing film as an irradiation target.

FIG. 9 is a schematic diagram showing an arrangement state of a stroboscope with respect to a print film as an irradiation object.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stroboscope 105a-105c Printing plate cylinder 107 Printing film 2 Lamp part 22 Xenon lamp 3 Battery 4 Power input part 5 High voltage generation part 6 Trigger generation part 7 DC power supply part 8 Photocoupler interface 9 Oscillation circuit 10 External input interface 11 Internal Input interface 12 Display unit 121 Liquid crystal display screen 13 Input unit 131 Power switch 132 Mode setting switch 133 Dial switch 134 Imposition switch 135 Phase adjustment switch 14 Control unit 141 Storage unit 142 Display control unit 143 Storage control unit 144 Plate cylinder circumference Calculation means 145 Light emission cycle calculation means 146 Timing pulse control means

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masao Arita 4-2-1-10 Hachimotomatsu-Higashi, Higashihiroshima City, Hiroshima Prefecture Metasoft Fuji Inside F-term (reference) 2C250 EB27 EB29 EB36 3K098 BB20

Claims (3)

[Claims] 1. A stroboscope for periodically irradiating an illuminated object with a flash from a light emitting means, wherein a light emitting cycle calculating means for calculating a light emitting cycle based on a set light emitting condition, and in accordance with the calculated light emitting cycle. A stroboscope comprising: a light emission timing pulse generating unit that outputs a light emission timing pulse; and a light emission driving unit that supplies light emission power to the light emission unit based on the light emission timing pulse. 2. An input means capable of inputting the light emission condition,
Display control means for displaying a display screen for inputting the light emission condition and displaying a numerical value on the display screen for input by a numerical input command from the input means, and setting the light emission condition indicated by the numerical value for a light emission cycle calculation 2. The stroboscope according to claim 1, further comprising: light emission condition setting means. 3. A stroboscope in which a printed body after passing a printing plate cylinder of a printing apparatus is an object to be irradiated, wherein the light emission condition is data on a printing speed value and a printing plate cylinder circumference value. The stroboscope according to claim 1 or 2, wherein