US3196016A - Photocomposing process for the production of process copies without use of a layout - Google Patents

Photocomposing process for the production of process copies without use of a layout Download PDF

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Publication number
US3196016A
US3196016A US171394A US17139462A US3196016A US 3196016 A US3196016 A US 3196016A US 171394 A US171394 A US 171394A US 17139462 A US17139462 A US 17139462A US 3196016 A US3196016 A US 3196016A
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US
United States
Prior art keywords
light
photographic
exposure
base
picture
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US171394A
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English (en)
Inventor
Seelig Anton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FILM KLISCHEE GmbH
FILM-KLISCHEE GmbH
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FILM KLISCHEE GmbH
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B17/00—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography
    • B41B17/02—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography with manually-adjustable character carriers to enable characters to be photographed in succession
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B15/00—Photographic composing machines with movable character carriers for composing lines of characters prior to photography
    • B41B15/10—Details
    • B41B15/28—Photographic devices
    • B41B15/32—Film-handling mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/152—Making camera copy, e.g. mechanical negative

Definitions

  • the masking plate with the lay-out was tipped off and the letter was exposed on the underlying light-sensitive material thus exposed. This operation was repeated until the entire word had been composed.
  • the lay-out in such cases, contained either the complete text to be set, or the complete text could he formed or designed during the setting.
  • Another process involves the use of a luminous foil of long-lasting intensity to determine positioning of the letters.
  • the light-sensitive material is, in this case, covered by a masking plate on top of which the luminous foil is placed.
  • Each sign or letter is first projected on the luminous foil and after removal of the masking plate also on the light-sensitive material. Positioning of the letters is controlled and regulated on the luminous foil.
  • the present invention provides a process which does not require a lay-out to determine letter spacing and posi- Patented July 20, 1965 tioning, but makes it possible to watch the composition of the word to be set letter after letter, as in writing.
  • the following example illustrates how a word is composed photographically under optical control.
  • the device used works similar to a pohtographic enlarger. It contains a red filter placed in the course of the rays. By means of this red filter, the letter may be projected and adjusted on the ligh -sensitive material without influencing the latter. The red fitter is removed from the course of the ray during the exposure and the photographic material thus exposed to actinic, preferably strong white light. After exposure, the red filter moves automatically back in the course of the rays.
  • the light-sensitive material may be placed on a socalled cross-slide which is movable to the left and right and also vertically. This is necessary in order to set several lines one under the other.
  • Photographic material having steep gradation and a light sensitivity one-two hundredth that of normal photographic paper is dipped into a developing solution. After about 26 seconds of soaking in this solution, the material is taken out and wiped in order to remove any drops of solution sticking to the coating. The moistened material is then put on the cross-slide.
  • FIGS. 1 through 6 illustrate composing the German word
  • FIG. la letter E is selected and is projected on the light-sensitive photographic material, saturated with developer solution, using red light. While the projected E is visible to the operator, so that he can adjust the paper with respect to the locus of projection of the E, the projected red rays do not serve to biacken the paper.
  • the illustrated FIG. la shows red in hatching.
  • actinic e.g. strong white
  • the red filter is removed from the path of the light rays and the light-sensitive material is exposed to the actinic light and blackens immediately to bring the letter r into line with the E, may be effected, and the cross-slide is moved to the left until it is in the desired position next to E (see FIG. 2b). as visually observed. Thereupon, the red filter is removed and the exposure to actinic light blackens the r immediately (see FIG. 20).
  • the light-sensitive material is taken oil of the cross-slide, preferably again dipped into the developing solution (about 2 to 3 seconds only) in order to equalize eventual irregularities in developing, and thereafter fixed in a normal fixative bath, rinsed and dried.
  • the photographic material used for this process has an exceedingly contrast-rich silver chloride emulsion layer of very low sensitivity; its maximum sensitivity is in the yellow-green range at about 540 A. wavelength.
  • the paper base of this photographic paper is a web of about 85 grams per square meter and made without addition of baryta.
  • This illustrative paper provides the two essential characteristics of The curves shown in attached FIG. 7 illustrate the important characteristics of photographic papers useful in the carrying out of this process.
  • the Abscissa in logarithmic scale
  • the slope of the curves is a direct measure of the gradation.
  • the slope should be as steepas possible, i.e., at least 45? and preferably steeper than 75 from the horizontal.
  • Typical examples for good usable combinations of sensitivity and gradation are:
  • curves (a) and (b) represent photographic materials which are not usable in the present invention because they are too sensitive and their gradation is not sufiiciently steep, whereas curve (c) represents an operable photographic material of tolerable sensitivity and usably steep gradation.
  • Curves (d) and (e) represent photographic materials having preferred steepness of gradation and relatively low sensitivity.
  • the paper can be treated after fixation with a 1% solution of Na CO in water for about one minute in order to shorten the time necessary for the subsequent washing.
  • any projector which projects a real image of the letter or type selected from the letter slide onto the photographic material, so long as means are provided for moving the photographic material under the projector in every direction desired, so as to place the projected image on the proper spot on the photographic paper before exposure to actinic light.
  • the cross-slide is just such a means for moving the material; A combination of a cross-slide with a photographic camera is described in Einbowung in die Mikrofilmtechnik by Janiak & Raabe, Ed. Verlag Peter Steffen G.m.b.H., pp. 53-55.
  • Photocomposing process .for the production of a process copy which comprises. the steps consisting essentially of impregnating with developing solution a photosensitive base having a lightsensitive coating containing silver chloride, of a steep gradation corresponding to a slope of at least 45 of the gradation curve obtained by plotting the exposure in Lux. sec as abscissa against the degree of blackening produced by such exposure as ordinate, both in logarithmic scale, and of a sensitivity low enough that no blackening occurs unless exposed to at least 1.5 Lux. sec.
  • Photocomposing process for the production of a' process copy which comprises the steps consisting essenti-' ally of impregnating with developing solution a photosensitive base having a light-sensitive coating containing silver chloride of a steep gradation corresponding to a slope of at least 75 of the curve obtained by plotting the exposure in Lux. sec. as abscissa against the degree of blackening produced by such exposure as ordinate, both in logarithmic scale, and of a sensitivity low enough that no blackening occurs unless exposed to at least 2 Lux. sec.

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  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
US171394A 1961-02-14 1962-02-06 Photocomposing process for the production of process copies without use of a layout Expired - Lifetime US3196016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF33202A DE1145490B (de) 1961-02-14 1961-02-14 Verfahren zur Herstellung von Text- und Kopiervorlagen auf photographischem Wege unter optischer Kontrolle

Publications (1)

Publication Number Publication Date
US3196016A true US3196016A (en) 1965-07-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US171394A Expired - Lifetime US3196016A (en) 1961-02-14 1962-02-06 Photocomposing process for the production of process copies without use of a layout

Country Status (4)

Country Link
US (1) US3196016A (de)
CH (1) CH404402A (de)
DE (1) DE1145490B (de)
GB (1) GB990476A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286608A (en) * 1964-05-20 1966-11-22 Visual Graphics Corp Photographic-type printing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3067767D1 (en) * 1980-09-23 1984-06-14 Projectaline Ag Device and method for the production of characters, especially of a caption, on photographic material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687072A (en) * 1950-02-27 1954-08-24 George A Lohr Photographic lettering device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687072A (en) * 1950-02-27 1954-08-24 George A Lohr Photographic lettering device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286608A (en) * 1964-05-20 1966-11-22 Visual Graphics Corp Photographic-type printing device

Also Published As

Publication number Publication date
GB990476A (en) 1965-04-28
CH404402A (de) 1965-12-15
DE1145490B (de) 1963-03-14

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