JPS5553049A - Image pick-up tube - Google Patents

Image pick-up tube

Info

Publication number
JPS5553049A
JPS5553049A JP12511278A JP12511278A JPS5553049A JP S5553049 A JPS5553049 A JP S5553049A JP 12511278 A JP12511278 A JP 12511278A JP 12511278 A JP12511278 A JP 12511278A JP S5553049 A JPS5553049 A JP S5553049A
Authority
JP
Japan
Prior art keywords
glass
sheet
conductive film
central part
outerperipheral
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
JP12511278A
Other languages
Japanese (ja)
Inventor
Mitsuo Ichikawa
Tsutomu Fujita
Shiro Aizawa
Tatsuhiko Iida
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 JP12511278A priority Critical patent/JPS5553049A/en
Publication of JPS5553049A publication Critical patent/JPS5553049A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

PURPOSE: To focus on into a photo conductive screen sharply and strengthen the structure of the glass plate so as to prevent it from the damage by arranging to make the thickness at the outer-peripheral part of a thin glass plate to be thicker than that of the region to be scanned by the electron rays of the central part.
CONSTITUTION: On the surface of the sheet of clear glass 1, the sheet of glass 4, and the transparent electric conductive film 5, and the photo conductive film 6 are fixed in turn through the bonding agent 3. By utilizing the signal electrode 8 with the indium material 7, the electron gun 9 is sealed into the opening edge of the outer tube 10. The thickness of the outerperipheral place of this sheet of glass is more thicker than that of the region scanned by the electron rays at the central part (10W20μm at the central part, 40W50μm at the outerperipheral place). Such structure is obtainable by etching with hydrogen fluoride. Due to the above procedure, it can be achieved that images on the photo conductive film become sharp and the strengthening of sheet of glass is improved so as to prevent damages.
COPYRIGHT: (C)1980,JPO&Japio
JP12511278A 1978-10-13 1978-10-13 Image pick-up tube Pending JPS5553049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12511278A JPS5553049A (en) 1978-10-13 1978-10-13 Image pick-up tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12511278A JPS5553049A (en) 1978-10-13 1978-10-13 Image pick-up tube

Publications (1)

Publication Number Publication Date
JPS5553049A true JPS5553049A (en) 1980-04-18

Family

ID=14902133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12511278A Pending JPS5553049A (en) 1978-10-13 1978-10-13 Image pick-up tube

Country Status (1)

Country Link
JP (1) JPS5553049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7999164B2 (en) 2006-11-08 2011-08-16 Shiro Satomi Valve mechanism for musical instrument and brass instrument provided with valve mechanism for musical instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7999164B2 (en) 2006-11-08 2011-08-16 Shiro Satomi Valve mechanism for musical instrument and brass instrument provided with valve mechanism for musical instrument

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