JPS52135580A - Method of forming protection film - Google Patents

Method of forming protection film

Info

Publication number
JPS52135580A
JPS52135580A JP15336976A JP15336976A JPS52135580A JP S52135580 A JPS52135580 A JP S52135580A JP 15336976 A JP15336976 A JP 15336976A JP 15336976 A JP15336976 A JP 15336976A JP S52135580 A JPS52135580 A JP S52135580A
Authority
JP
Japan
Prior art keywords
protection film
temperature
retaining film
forming protection
forming
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
JP15336976A
Other languages
Japanese (ja)
Inventor
Akiyoshi Saito
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 JP15336976A priority Critical patent/JPS52135580A/en
Publication of JPS52135580A publication Critical patent/JPS52135580A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: In a method of forming a temperature-retaining film for a light-emitting tube of a high voltage metallic vapor discharge lamp, coating of a material for the temperature-retaining film is dividedly made several times so as to minimize peel-off of the temperature-retaining film.
COPYRIGHT: (C)1977,JPO&Japio
JP15336976A 1976-12-22 1976-12-22 Method of forming protection film Pending JPS52135580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15336976A JPS52135580A (en) 1976-12-22 1976-12-22 Method of forming protection film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15336976A JPS52135580A (en) 1976-12-22 1976-12-22 Method of forming protection film

Publications (1)

Publication Number Publication Date
JPS52135580A true JPS52135580A (en) 1977-11-12

Family

ID=15560937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15336976A Pending JPS52135580A (en) 1976-12-22 1976-12-22 Method of forming protection film

Country Status (1)

Country Link
JP (1) JPS52135580A (en)

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