US3440937A - Photographic composition apparatus - Google Patents

Photographic composition apparatus Download PDF

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Publication number
US3440937A
US3440937A US618048A US3440937DA US3440937A US 3440937 A US3440937 A US 3440937A US 618048 A US618048 A US 618048A US 3440937D A US3440937D A US 3440937DA US 3440937 A US3440937 A US 3440937A
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US
United States
Prior art keywords
matrix
drum
characters
optical
character
Prior art date
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
US618048A
Other languages
English (en)
Inventor
Louis M Moyroud
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.)
Photon Inc
Original Assignee
Photon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US368839A external-priority patent/US3291015A/en
Application filed by Photon Inc filed Critical Photon Inc
Application granted granted Critical
Publication of US3440937A publication Critical patent/US3440937A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B41B17/04—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography with a carrier for all characters in at least one fount
    • B41B17/10—Photographic composing machines having fixed or movable character carriers and without means for composing lines prior to photography with a carrier for all characters in at least one fount with a continuously-movable carrier
    • 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
    • B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
    • B41B21/16—Optical systems

Definitions

  • This invention utilizes a continuously rotating matrix similar to that disclosed in my copcnding application Ser. No. 441,738.
  • the projection area of the present invention is much enlarged to a suificient length so that a Whole line may be projected without any mechanical translation of the optical system. This is due mainly to: (1) the unique arcuate mask which serves to mask all but the selected character throughout the entire arc of the projection area; (2) the optical system which has the unique characteristic of imaging the concave arc of the projection area as a straight line at the film plane.
  • one of the objects of this invention is to provide a phototypesetter which requires no mechanical translation of the optical system.
  • Another object of this invention is to provide a means for photographically composing typographic images on photographic film or paper at extremely high speeds.
  • Still a further object of this invention is to provide a high speed phototypesetter which can be manufactured at a relatively low cost.
  • a further object of this invention is to provide a means for very rapid mixing of several type faces within a line having a common baseline.
  • FIG. 1 is a cut away view of a preferred embodiment of the invention.
  • FIG. 2 is a top plan view of the embodiment shown in FIG. 1.
  • FIG. 3 is a view showing a portion of the arcuate shield with electro optical shutter elements in the window opening.
  • FIG. 4 shows another embodiment of the invention.
  • FIG. 5 shows an enlarged view of the electro-optical shutter elements associated with the optical system as shown in FIG. 4.
  • FIG. 1 the characters of the matrix are transparent on opaque background and are attached to a continuously rotating drum 132.
  • This drum is provided with apertures which receive matrix segments 134.
  • the drum carries three rows of characters of different styles or faces 136, 138 and 140. Each row can contain one or more complete alphabets and certain frequently used characters can also be repeated several times as explained in my Patent No. 3,291,015.
  • the drum is continuously driven by a motor 154 secured to the base 156 of the machine.
  • a timing disc 204 is secured to drum 132 to generate pulses as it intercepts a light beam generated by the exciter lamp arrangement 200 associated with photocell 202.
  • the signals generated by this arrangement serve to generate a pulse everytime a character moves past a fixed position as described in my aforesaid Patent No. 3,291,015.
  • a certain area of the matrix can be illuminated for very short instants by a flash lamp 212 associated with an optical condensing system 210.
  • the light emitted by the flash lamp is limited to an area slightly larger than the largest character by an aperture or window 208 cutout in the arcuate mask 206 mounted on axially pivoted member 180 acting like a shield or shutter to prevent the projection of unwanted characters.
  • Member 180 is axially pivoted at 192 on the fixed extension 194 of the frame of the machine. It is also supported at the other end by arcuate rails schematically shown at 188.
  • Member 180 is provided with a gear segment 182, see FIG. 2, engaged by pinion 184 of a stepping motor 186.
  • Aperture 208 is periodically moved, as explained in the aforesaid patent.
  • the beam of light emerging from the selected character is deflected by a mirror 142 to an optical system 158 to a light receptive surface 6, which can be a photosensitive film or a heat sensitive plate material.
  • the optical system 158 is so designed as to compensate for the curvature of the matrix in the projection area. This area is limited by lines 173 and 174 whichdefine a projection area T.
  • the length of the matrix in the projection area T is projected as a straight line of the same length T, mul tiplied by the enlargement ratio of the optical system 158.
  • the mirror 142 can be pivoted around a fixed axis in order to select a specified matrix row or it can be attached to a fixed extension 196 of the machine frame, as shown in FIG. 1.
  • control circuit The details of the control circuit have not been described in this because such control circuit is identical to that described in my Patent No. 3,291,015. It is assumed that the control circuit will accept either punched paper tape or computer generated magnetic tape. Alternatively, the control circuit described in my copending application Ser. No. 441,738 with slight modifications which will be obvious to those skilled in the art can be used.
  • the window aperture of the preferred embodiment is shown in detail in FIG. 3. It is made large enough to expose all three levels of character rows 136, 1'38 and on the matrix.
  • an electro-optic material commercially known as Varad whose transparency can be varied from complete transparency to opaque by the application of electrical current.
  • the light transmission area of the aperture 208 can be limited by means of a shutter movable in a direction at right angles to the displacement of shield 206 as described in my copending application Ser. No. 441,738.
  • the light source 150 which can be a relatively small flash tube such as an E.G. & G. FX78 flash tube.
  • This tube is shown mounted in a reflector housing 152 which is mounted directly on the arcuate shield directly in front of the window opening 146.
  • This arrangement has certain advantages in that light is directed to the character without the necessity of an elaborate and expensive optical condensing system.
  • FIGURE 4 shows an embodiment wherein two optical wedges 160 and 162 are located at the exit end of optical system 158 for the purpose of projecting on the same common base line 108 on film 6 any of the diiferent type faces of rows 136, 138 or 140. It is evident that in this example only one-third of the emerging light is utilized. As the optical system 158 and its associated wedges would make three images of each character row, shutters 164, 166 and 168 are associated with each three lens areas in order to abturate any of these areas shown at 161, 163 and 165 in FIG. 5.
  • a character projector comprising a continuously rotating drum, a matrix strip having light transparent characters formed in an opuaqe background mounted around the periphery of said drum, an intermittent light source located outside the drum in position to illuminate a portion of the matrix strip, a mirror within the drum positioned to direct the light rays passing through the transparent characters along a path substantially parallel to the axis of the drum, a lens positioned in said parallel path, an image plane, said lens being effective to focus the light rays so that the image of the transparent characters is formed in the image plane a window slightly wider than the maximum width of any character on the matrix, means to move the window through an arcuate path substantially concentric to the drum, means to position said window to any one of a plurality of positions along said arcuate path and means to actuate said intermittent light source whenever a selected one of the matrix characters appears within the window thereby causing the image of said character to be projected to the image plane.
  • the window comprises an opening formed in an arcuate member and a support member eflective to support said arcuate member in a position substantially concentric to the axis of the drum.
  • the opening contains a three section electro-optical shutter, said sections each comprising rectangular areas adjoining each other in a vertical row, operative means eflFective to selectively cause any one of said sections to switch to its transparent state.

Landscapes

  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Projection-Type Copiers In General (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
US618048A 1964-05-20 1967-02-23 Photographic composition apparatus Expired - Lifetime US3440937A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US368839A US3291015A (en) 1964-05-20 1964-05-20 Type composing apparatus
GB7752/66A GB1180913A (en) 1964-05-20 1966-02-22 Improvements in or relating to Photographic Type-Composing.

Publications (1)

Publication Number Publication Date
US3440937A true US3440937A (en) 1969-04-29

Family

ID=26241644

Family Applications (2)

Application Number Title Priority Date Filing Date
US618048A Expired - Lifetime US3440937A (en) 1964-05-20 1967-02-23 Photographic composition apparatus
US617912A Expired - Lifetime US3512462A (en) 1964-05-20 1967-02-23 Photographic composition apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
US617912A Expired - Lifetime US3512462A (en) 1964-05-20 1967-02-23 Photographic composition apparatus

Country Status (5)

Country Link
US (2) US3440937A (de)
BE (1) BE694286A (de)
DE (2) DE1522494C3 (de)
GB (1) GB1180913A (de)
NL (1) NL6702597A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654846A (en) * 1970-04-01 1972-04-11 Electronic Image Systems Corp Electro-mechanical shutter array
US5497216A (en) * 1991-12-24 1996-03-05 Canon Kabushiki Kaisha Reader-printer
US5220378A (en) * 1992-04-21 1993-06-15 Eastman Kodak Company Optical arrangement especially suitable for use in a high speed multi-magnification photofinishing printer
JP2773545B2 (ja) * 1992-05-29 1998-07-09 ノーリツ鋼機株式会社 回転画像焼付方法及び装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134090A (en) * 1956-06-04 1964-05-19 Ibm Proportional space recording devices
US3252392A (en) * 1963-07-12 1966-05-24 Us Scientific Instruments Apparatus for character recording

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942538A (en) * 1958-07-17 1960-06-28 Mergenthaler Linotype Gmbh Character presentation scheme for phototypographical machine
NL259294A (de) * 1959-12-21
US3106881A (en) * 1960-09-20 1963-10-15 Ibm Recording and printing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134090A (en) * 1956-06-04 1964-05-19 Ibm Proportional space recording devices
US3252392A (en) * 1963-07-12 1966-05-24 Us Scientific Instruments Apparatus for character recording

Also Published As

Publication number Publication date
DE1522493A1 (de) 1969-12-11
DE1522493B2 (de) 1972-03-30
DE1522494B2 (de) 1974-01-31
DE1522494A1 (de) 1970-07-30
GB1180913A (en) 1970-02-11
US3512462A (en) 1970-05-19
BE694286A (de) 1967-08-21
DE1522494C3 (de) 1974-08-22
NL6702597A (de) 1967-08-23

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