GB1059017A - Improvements relating to optical printing systems - Google Patents

Improvements relating to optical printing systems

Info

Publication number
GB1059017A
GB1059017A GB2452265A GB2452265A GB1059017A GB 1059017 A GB1059017 A GB 1059017A GB 2452265 A GB2452265 A GB 2452265A GB 2452265 A GB2452265 A GB 2452265A GB 1059017 A GB1059017 A GB 1059017A
Authority
GB
United Kingdom
Prior art keywords
elements
group
film
displacement
june
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
Application number
GB2452265A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1059017A publication Critical patent/GB1059017A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Laser Beam Printer (AREA)

Abstract

1,059,017. Photo-composing machines. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 10, 1965 [June 26, 1964], No.24522/65. Heading B6W. [Also in Division H4] An optical deflecting means comprises three electro-optical elements (45, 47, 49) each comprising an electro-optically active crystal (e.g. KD 2 PO 4 ) (45a &c.) between two transparent electrodes (45b, 45c &c.). and three birefringent elements (46, 48, 50) having lengths in the ratio 4: 2:1. A light source (1) is rendered parallel by a lens (2), passes through an opaque plate (3) with transparent characters (4), a lens (5), a polarizer (6), and two groups (101 &c.), (201 &c.) of deflection elements, the first group producing 0 to 7 units of vertical displacement and the second group horizontal displacement, so that the part of the beam containing a selected character passes through an aperture (8) in a diaphragm (9). The beam is reflected to the left-hand end of a third group of deflection elements (301 &c.), of lengths proportional to 32:16: 8: 4: 2: 1, whereby it is displaced horizontally to a desired one of 64 positions on a film (14). After printing a line, the film is displaced vertically, or alternatively a further group of vertical deflection elements is provided so as to print a complete page without moving the film. Elements for displacement by fractions of a unit can be used for subscript, proportional letter spacing &c. The plate (3) may carry component elements of Sanskrit or other characters.
GB2452265A 1964-06-26 1965-06-10 Improvements relating to optical printing systems Expired GB1059017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ0026107 1964-06-26

Publications (1)

Publication Number Publication Date
GB1059017A true GB1059017A (en) 1967-02-15

Family

ID=7202482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2452265A Expired GB1059017A (en) 1964-06-26 1965-06-10 Improvements relating to optical printing systems

Country Status (3)

Country Link
AT (1) AT257204B (en)
DE (1) DE1250172B (en)
GB (1) GB1059017A (en)

Also Published As

Publication number Publication date
AT257204B (en) 1967-09-25
DE1250172B (en) 1967-09-14

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