DE2137934B2 - DEVICE FOR EXPOSING PHOTO MATERIAL IN HAND-OPERATED PHOTO SETTING DEVICES - Google Patents

Description

To create device of the type mentioned, which is a further development, improvement and thus Supplement to the main patent.

The present preferred embodiment of a device for the mechanical storage of analog thickness values in hand-operated photo-setting devices during the exposure time is accordingly characterized in that the oscillating mirror located in the beam path of a scanning optics for the thickness marks with the reversing motor which can be operated by control electronics at the same time as the symbol is exposed in a predetermined direction is in connection with a toothed rack via gears, the gear wheel directly coupled to the reversing motor being able to be coupled via a coupling to an element for the thickness transport of the photographic layer carrier when the rotary movement of the reversing motor is reversed, after the thickness value of a symbol to be set by the opposite analogue linear movement of the Rack saved and the exposure of this symbol is finished.

In this context it is for the thus constructed apparatus of importance that the same ausgelö- with the exposure of the symbol AJ actuation of the reversible motor and thus the displacement is stopped the rack via a photoelectric converter after the deflected about the pivotal mirror image of the Dicktenmarke alignment is aligned with this, and that the movement of the reversing motor for the thickness transport is interrupted in the opposite direction via a limit switch.

In general, the scanning of the thickness mark, which is by no means, as in the present case Embodiment executed, only needs to act an optical scanning possibility, accordingly according to the special design of the thickness mark as a cam, perforation, photo mark or the like their length, thickness, position or also their diameter not only optically but also mechanically, be done electrically, magnetically or in any other suitable way.

The preferred device for mechanical intermediate storage identified in the above form of non-discrete thickness values requires only a very small number of mechanical components, these are also commercially available prefabricated parts such as gears, racks and the like can.

The reversing motor used is only activated during the storage of the thickness value and in reverse Direction actuated during the subsequent thickness transport, so that signs of wear can be reduced to a minimum. The small number of components used makes the inventive Device largely insusceptible to failure and absolutely reliable in its functionality. In the drawing, the device referred to above is in an exemplary embodiment and shown schematically in a perspective illustration.

Each symbol 2 in the form of a character or d. Like. Can for its projection on a photo support? by setting the character carrier accordingly in the beam path of a Light source 4 are brought. The character carrier I reproduced here in the excerpt can be designed in the form of a carrier disk or a rectangular carrier panel. Each symbol 2 a thickness mark 3 is assigned, the length, thickness or position of which is calculated from a fixed zero point represents the actual thickness value.

Corresponding to that in the present exemplary embodiment The optical scanning system used for the thickness mark consists of a photographic applied mark, but it can in general with differently designed scanning devices consist of a cam, a perforation, a magnetization on a magnetic tape strip or the like.

While the symbol 2 is brought into the beam path of the light source 4, with the shutter 6 open corresponding to the duration of the exposure time via the lens 5 directly and sharply on the photo layer carrier 7 is imaged, the scanning optics of the thickness mark 3 uses a second light source 4 α, the image of the thickness mark 3 via the lens 13 and the pivoting mirror 14 on a Aperture IS throws. Depending on the zero position of the swivel mirror 14 and the thickness value of a symbol 2 is assigned analogously, the image 16 of the thickness mark 3 initially occurs at some point the aperture 15. With the triggering of the exposure process for the symbol 2, i. H. with opening the Shutter 6, the swivel mirror 14 is turned around at a constant angular velocity at the same time its axis 17 rotated so that the image 16 on the aperture 15 in the direction of arrow 19 on a Slot 20 wanders to. As soon as the image 16 has reached the slot 20, the photoelectric Transducer 21 generates a pulse by which the rotational movement of the swivel mirror 14 is interrupted will.

The synchronous with the exposure and thus the projection of a symbol 2 on the photographic layer carrier 7 any rotational movement of the swivel mirror 14 in the above-mentioned manner is controlled by the control electronics 8 accomplished. The control electronics 8 with a reversing motor 9 or a brake motor are available for this in connection, its pinion 29 on the output shaft in the teeth of a gear 10 meshes, which in turn are in engagement with the teeth of a rack 11. Diametrically these serrations opposite the rack 11 is acted upon in the manner shown with further teeth, which engage in the teeth of the gear 18, which is fixed to the axis 17 of the pivoting mirror 14 communicates.

When the exposure process is triggered, i. H. when the shutter 6 is opened, the control electronics 8, the reversing motor 9 is set in rotation at the same time, so that the rack 11 is in Moved in the direction of arrow 12 until the image 16 of the thickness mark 3 is above the slot 20 and is thus aligned with the photoelectric converter 21.

The pulse generated in this way puts the reversing motor 9 out of operation via the sleuer electronics 8.

The carried out during the aforementioned displacement of the rack 11 in the direction of arrow 12 The rotary movement of the gearwheel 10 took place with the clutch 23 de-energized, this clutch - here about a magnetic coupling - only then is transferred into the coupling state after both the storage of the thickness value through ana-

logc Verschiebuni ', the rack 11 in the called- The return of the rack 1.1 in the direction of de

th way as well as the exposure process of the photo arrow 24 and thus the return of the pivot

Layer carrier 7 with the respective symbol 2 is mirrored 14 up to the starting position is off for so long

is closed. At this moment it is guided over the until rack I1 reaches the end stop 2 ',

Control electronics 8 not only energized the clutch 23 5 reached and thus the limit switch 26 closes where

but also the reverse mode via the control electronics 8 of the reverse mode

gate 9 rotated in the opposite direction (or 9 out of operation and clutch 23 ent

sets, so that now the rack 11 is excited.

Moved back in the direction of arrow 24. Since this is the process in the present embodiment now with coupled needle roller 25 io. Simplification only photo designed for one font size takes place, the analog translation machine can of course be used by this Toric movement of the rack 11 stored suitable means for any font size Applied thickness value Transferred to the photo layer carrier 7, find manure.

d. That is, that this is exactly this thickness value

transported further and brought into a position «5 the exposure time as well as the duration of the thickening

in which he is responsible for taking up the next transport and selecting a character;

the symbol 2 can be locked. During the approximately equal time intervals by the operator

Thickness transport of the photo layer carrier 7 can take up more orders of magnitude, can with a

Immediately after the exposure of the pre-photo typesetting machine with such a trained

previous characters or symbols 2 with 10 intermediate storage options for the thickness value

simultaneous storage of the associated thickness due to the parallel running of exposure over time

value unlockable character carrier 1 by and storage of this thickness value on the one hand

Person operating the photo typesetting machine and the thickness transport and the characters

which can be set to the next symbol 2, on the other hand, the setting speed by about

the. 25 should be increased by a third.

1 sheet of drawings

Claims (3)

1 2 projection position can be brought (whereby the patent claims: mean shift value as an analog value up to the beginning of the film shift by the determined 1. Device for carrying out the process value is recorded), according to patent application rens for the photographic setting of lettering 5 P 19 18 762.3-51. chen with any, not divided into subunits Thickness values, which had been assumed by the dung from a hand-operated photo-setting device, tax stamps assigned to characters, with the symbols on the the character carrier are determined which character carrier according to the graphic Tax marks with the help of a scanning device ίο design of the characters, such as letters od. Control the film advance before then the like., Not different in discrete sub-units Character carrier unlocked and the next time will have subdivisible lengths, each can be brought into the projection position (whereby the determined shift value is assigned as a mark. According to the analogue in the proposal The setting process of each symbology is the size up to the beginning of the film shifting process to the determined value held bols or characters significantly shortened by the fact that is) according to claim 3 of the patent application, the exposure of the photo support and the Dick-P 19 18 762.3-51, thus marked transport of the same no longer in time as before net that they take place one after the other in the beam path of a scanning optics, but that rather the same- (4 (7,13) for the thick marks (3) located 20 at the same time as the exposure of the character Oscillating mirror (14) with which the thickness value is stored by a control, electronics (8) simultaneously with the exposure so that immediately after this storage and Process of the symbol (2) in a predetermined after the end of the exposure already the next Direction actuatable reversible motor (9) can be selected via characters, while the gears (29, 10, 18) with a toothed rack (11) 25 sen the thickness transport of the photo layer carrier Connection is, which is directly feasible. the reversing motor (9) coupled gear (10) In a preferred embodiment of a Via a coupling (23) to an element (25) for the device according to the main patent for implementation Thickness transport of the photo layer carrier (7) tion of the associated process scanning the when reversing the rotary movement of the reverse 30 the thickness of the set symbol analog thick motor (9) can be coupled after the thickness mark via scanning optics consisting of a value of a symbol to be set (2) lamp, a condenser, an objective, a by opposing analog linear movement of oscillating mirrors and a photoelectronic wandder Toothed rack (11) stored and the Beiich- ler by the oscillating mirror from a synchrontung this symbol (2) has ended. 35 motor via an electromagnetic clutch, a 2. Apparatus according to claim 1, characterized in gear drive, as well as a lever transmission so that it is moved simultaneously with the Beiich- long until the thickness mark triggers a fototung of the symbol (2) triggered actuation of the electronic signal in the converter, wherein the reversing motor (9) and thus the displacement size of the pivoting movement corresponds to the thickness of the rack (11) in question via a photoelectric symbol in the size of the original.
The converter (21) is stopped after the synchronous motor, which is deflected by the swivel mirror (14) used in the proposed device, runs during the entire thickness mark (3) in alignment with this output time of the photosetting device, with a coupling being established , and that the movement of the reversal of the mechanism for the swivel mirror to the motor (9) for the thickness transport in the reverse direction takes place simultaneously with the reverse direction via a limit switch (26) and the exposure of a symbol and the electric break . magnetic clutch is de-energized again as soon as 3. Apparatus according to claim 1, characterized in that the optical image of the thickness mark over the itself indicates that the scanning of the thickness swivel mark is continuously rotating around an axis (3) Depending on the design, the mirror falls on the photoelectric converter. There Ben as cams, perforations, photo mark or the like. The synchronous motor used only one direction of rotation its length, thickness, position or its passage, the thickness transport takes place according to knife light-optical, mechanical, electrical, ma-finished exposure process and the reset Magnetically or in an equivalent way, it follows the storage arrangement when the clutch is de-energized. 55 follow the dead weight of a specially designed seesaw. Based on the knowledge of the main application that the setting speed of a manually operated Photo setting machine with any thickness values The invention relates to a device 6 ° for the characters or symbols without cost Carrying out the procedure for the photographic playful and time-consuming shortening of the exposure setting of characters with any, not in time or speed for the thickness trans subunits divisible thickness values that can be increased by increasing the exposure of the port by the characters assigned tax stamps symbol and the thickness transport of the photo shift the character carrier are determined, which 65 carrier no longer take place consecutively Steiiermarken with the help of a scanning device, but by means of temporary storage over-film advance control before the line lapping can then be carried out, lies with the present erfinch bearer unlocked and the next character in proc- ess based on the task is another beneficial one