CA1075946A - Digital flash intensity control system for phototypesetters - Google Patents

Digital flash intensity control system for phototypesetters

Info

Publication number
CA1075946A
CA1075946A CA263,545A CA263545A CA1075946A CA 1075946 A CA1075946 A CA 1075946A CA 263545 A CA263545 A CA 263545A CA 1075946 A CA1075946 A CA 1075946A
Authority
CA
Canada
Prior art keywords
control means
light flux
letter size
proportional
output
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
CA263,545A
Other languages
English (en)
French (fr)
Inventor
Louis E. Griffith
Peter R. Ebner
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.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Itek 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 Itek Corp filed Critical Itek Corp
Application granted granted Critical
Publication of CA1075946A publication Critical patent/CA1075946A/en
Expired legal-status Critical Current

Links

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
    • B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
    • B41B21/08—Light sources; Devices associated therewith, e.g. control devices
    • B41B21/12—Stroboscopic light sources

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Document Processing Apparatus (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
CA263,545A 1975-11-03 1976-10-18 Digital flash intensity control system for phototypesetters Expired CA1075946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/628,692 US4051486A (en) 1975-11-03 1975-11-03 Digital flash intensity control system for phototypesetters

Publications (1)

Publication Number Publication Date
CA1075946A true CA1075946A (en) 1980-04-22

Family

ID=24519924

Family Applications (1)

Application Number Title Priority Date Filing Date
CA263,545A Expired CA1075946A (en) 1975-11-03 1976-10-18 Digital flash intensity control system for phototypesetters

Country Status (6)

Country Link
US (1) US4051486A (enFirst)
JP (2) JPS5257822A (enFirst)
CA (1) CA1075946A (enFirst)
DE (1) DE2649563C2 (enFirst)
FR (1) FR2329441A1 (enFirst)
GB (1) GB1542490A (enFirst)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183638A (en) * 1976-02-03 1980-01-15 Am International, Inc. Exposure control system for photocomposition machines
CN101516002A (zh) * 2008-02-18 2009-08-26 佛山普立华科技有限公司 摄影装置及其闪光调整方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626635A (enFirst) *
US3218945A (en) * 1963-07-12 1965-11-23 Harris Intertype Corp Phototypesetting apparatus
US3710698A (en) * 1969-05-19 1973-01-16 Star New Era Photographic composition system
GB1267824A (en) * 1969-09-10 1972-03-22 Barr & Stroud Ltd Apparatus for automatically drawing lines
JPS4935223B1 (enFirst) * 1969-10-13 1974-09-20
US3738242A (en) * 1971-06-11 1973-06-12 B Lee Adaptive illumination source intensity control device
JPS5340086B2 (enFirst) * 1971-10-16 1978-10-25
JPS5053016A (enFirst) * 1973-09-07 1975-05-10
US3909832A (en) * 1974-06-17 1975-09-30 Addressograph Multigraph Optical device for converting a phototypesetter into headliner operation

Also Published As

Publication number Publication date
GB1542490A (en) 1979-03-21
FR2329441B1 (enFirst) 1983-01-07
US4051486A (en) 1977-09-27
JPS5257822A (en) 1977-05-12
JPS60173324U (ja) 1985-11-16
FR2329441A1 (fr) 1977-05-27
DE2649563C2 (de) 1986-03-06
DE2649563A1 (de) 1977-05-12

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Legal Events

Date Code Title Description
MKEX Expiry