JPS55154037A - Cathode-ray tube for projection - Google Patents

Cathode-ray tube for projection

Info

Publication number
JPS55154037A
JPS55154037A JP6188479A JP6188479A JPS55154037A JP S55154037 A JPS55154037 A JP S55154037A JP 6188479 A JP6188479 A JP 6188479A JP 6188479 A JP6188479 A JP 6188479A JP S55154037 A JPS55154037 A JP S55154037A
Authority
JP
Japan
Prior art keywords
faceplate
center
sealed
cathode
projection
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
JP6188479A
Other languages
Japanese (ja)
Other versions
JPS6323615B2 (en
Inventor
Katsuhiro Hinotani
Hiroshi Hayama
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP6188479A priority Critical patent/JPS55154037A/en
Publication of JPS55154037A publication Critical patent/JPS55154037A/en
Publication of JPS6323615B2 publication Critical patent/JPS6323615B2/ja
Granted 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

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

Abstract

PURPOSE:To improve the optical precision and simplify the structure by arranging the target surface with the center of curvature which is common to the reflecting mirror of the neck at the inner center of a faceplate. CONSTITUTION:A rigid metallic cabinet 30 is formed by collectively molding or sealing a funnel and a conical body. A target block 50 is provided at the center of a straightfoward hollow spherical faceplate 40 whose thickness is equal and whose outside is convex. Both the faceplate 40 and a conical body 34 are sealed by the sealing means 60. The inter-section between the neck tube and the rigid metallic cabinet 30 is fixed and sealed by the stem 80 with high precision.
JP6188479A 1979-05-18 1979-05-18 Cathode-ray tube for projection Granted JPS55154037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6188479A JPS55154037A (en) 1979-05-18 1979-05-18 Cathode-ray tube for projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6188479A JPS55154037A (en) 1979-05-18 1979-05-18 Cathode-ray tube for projection

Publications (2)

Publication Number Publication Date
JPS55154037A true JPS55154037A (en) 1980-12-01
JPS6323615B2 JPS6323615B2 (en) 1988-05-17

Family

ID=13184008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6188479A Granted JPS55154037A (en) 1979-05-18 1979-05-18 Cathode-ray tube for projection

Country Status (1)

Country Link
JP (1) JPS55154037A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151027A (en) * 1974-05-23 1975-12-04
JPS5237720A (en) * 1975-08-27 1977-03-23 Electro Optiek Nv Television picture projector
JPS5271338U (en) * 1975-11-19 1977-05-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151027A (en) * 1974-05-23 1975-12-04
JPS5237720A (en) * 1975-08-27 1977-03-23 Electro Optiek Nv Television picture projector
JPS5271338U (en) * 1975-11-19 1977-05-27

Also Published As

Publication number Publication date
JPS6323615B2 (en) 1988-05-17

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