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GB1245413A - A method of and apparatus for cutting stencils - Google Patents

A method of and apparatus for cutting stencils

Info

Publication number
GB1245413A
GB1245413A GB01278/68A GB1127868A GB1245413A GB 1245413 A GB1245413 A GB 1245413A GB 01278/68 A GB01278/68 A GB 01278/68A GB 1127868 A GB1127868 A GB 1127868A GB 1245413 A GB1245413 A GB 1245413A
Authority
GB
United Kingdom
Prior art keywords
stencil
laser
original
output
duplicating
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
GB01278/68A
Inventor
John Arthur Sperry
Peter Albert Newman
John Anthony Parker
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.)
N I G MASON Ltd
Original Assignee
N I G MASON Ltd
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 N I G MASON Ltd filed Critical N I G MASON Ltd
Priority to GB01278/68A priority Critical patent/GB1245413A/en
Publication of GB1245413A publication Critical patent/GB1245413A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

1,245,413. Lasers. NIG MASON Ltd. 7 March, 1969 [7 March, 1968], No. 11278/68- Heading H1C. [Also in Division B3] A pulsed laser is used to produce a stencil or similar perforated duplicating or printing plate by modulating the laser pulses and moving either the laser or the stencil. A CO 2 or argon laser is used which is Q-switched by a saturable absorption cell and has its output pulses modulated by an electro-optical cell or a deflecting mirror, modulation being controlled by the output of a photomultiplier which scans the original to be duplicated. The original and stencil may be mounted on a single rotating drum or separate synchronized drums. The photomodulator output controls the electrooptical cell in such a manner that the formation of a multiplicity of closely spaced apertures for passing ink through the stencil is inhibited when a white area of the original is scanned. A wax stencil may be used, or for repeated duplicating or printing runs a polyester film or a non-reflective thin metal sheet or foil may be provided.
GB01278/68A 1968-03-07 1968-03-07 A method of and apparatus for cutting stencils Expired GB1245413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB01278/68A GB1245413A (en) 1968-03-07 1968-03-07 A method of and apparatus for cutting stencils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB01278/68A GB1245413A (en) 1968-03-07 1968-03-07 A method of and apparatus for cutting stencils

Publications (1)

Publication Number Publication Date
GB1245413A true GB1245413A (en) 1971-09-08

Family

ID=9983277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01278/68A Expired GB1245413A (en) 1968-03-07 1968-03-07 A method of and apparatus for cutting stencils

Country Status (1)

Country Link
GB (1) GB1245413A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320834A1 (en) * 1975-08-11 1977-03-11 France Fa Norbert Beyrard Printing high density information using a laser beam - scanning a matrix horizontally in synchronism with a line scanned original e.g. for 'video film'
GB2162015A (en) * 1984-05-23 1986-01-22 Brinmiln Ltd Method of screen printing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320834A1 (en) * 1975-08-11 1977-03-11 France Fa Norbert Beyrard Printing high density information using a laser beam - scanning a matrix horizontally in synchronism with a line scanned original e.g. for 'video film'
GB2162015A (en) * 1984-05-23 1986-01-22 Brinmiln Ltd Method of screen printing

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