JPS566355A - Projection type cathode-ray tube - Google Patents

Projection type cathode-ray tube

Info

Publication number
JPS566355A
JPS566355A JP8232779A JP8232779A JPS566355A JP S566355 A JPS566355 A JP S566355A JP 8232779 A JP8232779 A JP 8232779A JP 8232779 A JP8232779 A JP 8232779A JP S566355 A JPS566355 A JP S566355A
Authority
JP
Japan
Prior art keywords
meniscus lens
adjusting screw
ray tube
projection type
type cathode
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.)
Pending
Application number
JP8232779A
Other languages
Japanese (ja)
Inventor
Mitsuru Matsushita
Kazuhiro Chihara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8232779A priority Critical patent/JPS566355A/en
Publication of JPS566355A publication Critical patent/JPS566355A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/894—Arrangements combined with the vessel for the purpose of image projection on a screen

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE:To prevent cracking in the portion in contact with the adjusting screw of a meniscus lens by providing a ceramic part between the adjusting screw for regulating the relative position of the meniscus lens and the meniscus lens. CONSTITUTION:The spacer 5 is provided with the adjusting screw 5a by which the relative position of the meniscus lens 2 to the spacer 5 is regulated. And, the ceramic part 5d is provided between the adjusting screw 5a and the meniscus lens 2. The ceramic part 5d serves to prevent directly contacting between the adjusting screw 5a and the meniscus lens 2, whereby permitting the cracking of the meniscus lens 2 to be prevented.
JP8232779A 1979-06-26 1979-06-26 Projection type cathode-ray tube Pending JPS566355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8232779A JPS566355A (en) 1979-06-26 1979-06-26 Projection type cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8232779A JPS566355A (en) 1979-06-26 1979-06-26 Projection type cathode-ray tube

Publications (1)

Publication Number Publication Date
JPS566355A true JPS566355A (en) 1981-01-22

Family

ID=13771451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8232779A Pending JPS566355A (en) 1979-06-26 1979-06-26 Projection type cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS566355A (en)

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