JPS5247672A - Illuminance correction filter and manufacturing method thereof - Google Patents

Illuminance correction filter and manufacturing method thereof

Info

Publication number
JPS5247672A
JPS5247672A JP12329975A JP12329975A JPS5247672A JP S5247672 A JPS5247672 A JP S5247672A JP 12329975 A JP12329975 A JP 12329975A JP 12329975 A JP12329975 A JP 12329975A JP S5247672 A JPS5247672 A JP S5247672A
Authority
JP
Japan
Prior art keywords
manufacturing
illuminance correction
correction filter
passing
rate
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.)
Granted
Application number
JP12329975A
Other languages
Japanese (ja)
Other versions
JPS5748814B2 (en
Inventor
Toshio Ueda
Hidemasa Komoro
Shoko Nishizawa
Hiroshi Yokomizo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12329975A priority Critical patent/JPS5247672A/en
Priority to DE19762646022 priority patent/DE2646022A1/en
Priority to FR7630991A priority patent/FR2328278A1/en
Priority to GB47635/76A priority patent/GB1562094A/en
Publication of JPS5247672A publication Critical patent/JPS5247672A/en
Publication of JPS5748814B2 publication Critical patent/JPS5748814B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • H01J9/2272—Devices for carrying out the processes, e.g. light houses
    • H01J9/2273—Auxiliary lenses and filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/205—Neutral density filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Optical Filters (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE: The effective face of filter is divided into a number of small blocks, and by varying the passing through rate of the small blocks, the disirable distribution of passing through rate is held, and the illuminance correction on the fluorescent face is performed.
COPYRIGHT: (C)1977,JPO&Japio
JP12329975A 1975-10-15 1975-10-15 Illuminance correction filter and manufacturing method thereof Granted JPS5247672A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP12329975A JPS5247672A (en) 1975-10-15 1975-10-15 Illuminance correction filter and manufacturing method thereof
DE19762646022 DE2646022A1 (en) 1975-10-15 1976-10-12 LIGHT INTENSITY DISTRIBUTION CORRECTION FILTER AND THEIR MANUFACTURING PROCESS
FR7630991A FR2328278A1 (en) 1975-10-15 1976-10-14 LIGHT INTENSITY DISTRIBUTION CORRECTIVE FILTER AND METHOD FOR MANUFACTURING THE SAID FILTER
GB47635/76A GB1562094A (en) 1975-10-15 1976-11-16 Method of operating a fuel fired combustion apparatus in conjunction with a diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12329975A JPS5247672A (en) 1975-10-15 1975-10-15 Illuminance correction filter and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JPS5247672A true JPS5247672A (en) 1977-04-15
JPS5748814B2 JPS5748814B2 (en) 1982-10-18

Family

ID=14857091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12329975A Granted JPS5247672A (en) 1975-10-15 1975-10-15 Illuminance correction filter and manufacturing method thereof

Country Status (3)

Country Link
JP (1) JPS5247672A (en)
DE (1) DE2646022A1 (en)
FR (1) FR2328278A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421255A (en) * 1977-07-19 1979-02-17 Matsushita Electronics Corp Manufacture for correction filter for exposure unit and its manufacturing unit
JPS5421256A (en) * 1977-07-19 1979-02-17 Matsushita Electronics Corp Manufacture for correction filter for exposure unit and its manufacturing unit
US5368513A (en) * 1989-10-02 1994-11-29 Bv Optische Industrie "De Oude Delft" Method for manufacturing a correction mask for an image intensifier tube of the proximity-focus type having an oblong cathode and anode, and also a method for correcting an image intensifier tube

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142126A (en) * 1978-03-06 1979-02-27 Wagner Electric Corporation Vacuum fluorescent display having uniform character brightness
US4488793A (en) * 1982-12-23 1984-12-18 Rca Corporation Photodepositing a CRT screen structure using discrete-element optical filter
US4547813A (en) * 1984-01-27 1985-10-15 Burroughs Corporation Apparatus for controlling light distribution in line scan optical imaging systems
FR2566542B1 (en) * 1984-06-22 1988-01-15 Videocolor METHOD FOR MANUFACTURING A VARIABLE LIGHT TRANSMISSION COEFFICIENT FILTER ON ITS SURFACE
DE3910520A1 (en) * 1989-04-01 1990-10-04 Gossen Gmbh Method for producing an optical filter for homogenising an inhomogeneously luminescing surface
NL8902443A (en) * 1989-10-02 1991-05-01 Optische Ind De Oude Delft Nv METHOD FOR MANUFACTURING A PROXIMITY FOCUS-TYPE IMAGERIZER TUBE WITH PROLIMED CATHODE AND ANODE, AND METHOD FOR CORRECTING AN IMAGE AMPLIFIER TUBE.
DE3934196C2 (en) * 1989-10-13 1994-01-20 Agfa Gevaert Ag Process for the production of an optical graduated filter, and optical filter produced by this process
DE102015103389A1 (en) 2015-03-09 2016-09-15 Schultheiss Gmbh Method and device for correcting an inhomogeneous intensity distribution of a radiation field generated by a radiation source

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870010A (en) * 1954-02-04 1959-01-20 Philco Corp Method of manufacturing electrical apparatus
GB1481979A (en) * 1973-08-29 1977-08-03 Hitachi Ltd Light exposure apparatus for manufacturing colour picture tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421255A (en) * 1977-07-19 1979-02-17 Matsushita Electronics Corp Manufacture for correction filter for exposure unit and its manufacturing unit
JPS5421256A (en) * 1977-07-19 1979-02-17 Matsushita Electronics Corp Manufacture for correction filter for exposure unit and its manufacturing unit
US5368513A (en) * 1989-10-02 1994-11-29 Bv Optische Industrie "De Oude Delft" Method for manufacturing a correction mask for an image intensifier tube of the proximity-focus type having an oblong cathode and anode, and also a method for correcting an image intensifier tube

Also Published As

Publication number Publication date
FR2328278B1 (en) 1981-03-27
FR2328278A1 (en) 1977-05-13
DE2646022A1 (en) 1977-04-28
JPS5748814B2 (en) 1982-10-18

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