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GB1012452A - A method for the manufacture of optical shields having a grooved profile for removing the lines in television pictures - Google Patents

A method for the manufacture of optical shields having a grooved profile for removing the lines in television pictures

Info

Publication number
GB1012452A
GB1012452A GB2050462A GB2050462A GB1012452A GB 1012452 A GB1012452 A GB 1012452A GB 2050462 A GB2050462 A GB 2050462A GB 2050462 A GB2050462 A GB 2050462A GB 1012452 A GB1012452 A GB 1012452A
Authority
GB
United Kingdom
Prior art keywords
manufacture
lines
grooved
cylinder
television pictures
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
GB2050462A
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.)
SABA Schwarzwaelder Apparate Bau Anstalt August Schwer Soehne GmbH
Original Assignee
SABA Schwarzwaelder Apparate Bau Anstalt August Schwer Soehne GmbH
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 DES74490A external-priority patent/DE1203310B/en
Application filed by SABA Schwarzwaelder Apparate Bau Anstalt August Schwer Soehne GmbH filed Critical SABA Schwarzwaelder Apparate Bau Anstalt August Schwer Soehne GmbH
Publication of GB1012452A publication Critical patent/GB1012452A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/002—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00932—Combined cutting and grinding thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/04—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings wherein non-plane surfaces are worked
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/24—Supports for luminescent material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/34—Luminescent screens provided with permanent marks or references
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B2700/00—Machines, apparatus, tools or accessories for artistic work
    • B44B2700/02—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two-dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B2700/025—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two-dimensionally for carving, engraving, or guilloching shallow ornamenting or markings for engraving a surface of revolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Metal Rolling (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

<PICT:1012452/C6-C7/1> <PICT:1012452/C6-C7/2> A method of making a mould for the manufacture of optical shields having a grooved profile for removing the lines in television pictures comprises cutting ahelical groove into a metallic cylinder and electroplating the grooved cylinder so formed to remove the surface roughness. Grooves as shown in Fig. 3 are coated in an electroplating bath with a thin layer of a metal such as nickel to a thickness of 20 microns. An average current density of 2-3 amps./square decimetre are used. For the grooves shown in Fig. 4 a current density of 4-6 amps./square decimetre is used to apply 20 layers to produce a total thickness of 200 microns and to produce the subsequent deforming defect. The grooved surface of the cylinder may be detached and opened flat after the cutting operation has been performed.
GB2050462A 1961-06-24 1962-05-28 A method for the manufacture of optical shields having a grooved profile for removing the lines in television pictures Expired GB1012452A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES74490A DE1203310B (en) 1961-06-24 1961-06-24 Process for profiling a roller used for the production of optical diaphragms with a grooved profile
DES86516A DE1215746B (en) 1961-06-24 1963-08-02 Profiling of roll-shaped matrices for the production of grooved optical screens that remove the line structure of television images

Publications (1)

Publication Number Publication Date
GB1012452A true GB1012452A (en) 1965-12-08

Family

ID=25996493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2050462A Expired GB1012452A (en) 1961-06-24 1962-05-28 A method for the manufacture of optical shields having a grooved profile for removing the lines in television pictures

Country Status (5)

Country Link
CH (1) CH416392A (en)
DE (1) DE1215746B (en)
FR (1) FR1324077A (en)
GB (1) GB1012452A (en)
NL (1) NL280085A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706804A1 (en) * 1993-06-25 1994-12-30 Delacour Frederic Method of treating the surface of a thermoformable material and device for this treatment
WO2004024421A1 (en) * 2002-09-10 2004-03-25 3M Innovative Properties Company Multi-diamond cutting tool assembly for creating microreplication tools

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706804A1 (en) * 1993-06-25 1994-12-30 Delacour Frederic Method of treating the surface of a thermoformable material and device for this treatment
WO2004024421A1 (en) * 2002-09-10 2004-03-25 3M Innovative Properties Company Multi-diamond cutting tool assembly for creating microreplication tools
CN100349725C (en) * 2002-09-10 2007-11-21 3M创新有限公司 Multi-diamond cutting tool assembly for creating microreplication tools

Also Published As

Publication number Publication date
NL280085A (en)
DE1215746B (en) 1966-05-05
CH416392A (en) 1966-06-30
FR1324077A (en) 1963-04-12

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