JPS5789475A - Base of display material for use in optical recording - Google Patents

Base of display material for use in optical recording

Info

Publication number
JPS5789475A
JPS5789475A JP55164300A JP16430080A JPS5789475A JP S5789475 A JPS5789475 A JP S5789475A JP 55164300 A JP55164300 A JP 55164300A JP 16430080 A JP16430080 A JP 16430080A JP S5789475 A JPS5789475 A JP S5789475A
Authority
JP
Japan
Prior art keywords
base
display device
optical recording
pcs
value
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
JP55164300A
Other languages
Japanese (ja)
Inventor
Mikio Iizuka
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.)
Pilot Corp
Original Assignee
Pilot Pen 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 Pilot Pen Co Ltd filed Critical Pilot Pen Co Ltd
Priority to JP55164300A priority Critical patent/JPS5789475A/en
Publication of JPS5789475A publication Critical patent/JPS5789475A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/20—Acidic compositions for etching aluminium or alloys thereof

Abstract

PURPOSE: To easily provide the obtained titled base with high-temperature resistance and desired optical property, by etching the surface of Al or an Al alloy with hydrofluoric acid or a fluoride.
CONSTITUTION: In order to read an expression on a diaplay device, it is necessary that the PCS (print.contrast.signal) value of the display device is higher than a certain level. In order to obtain a large PCS value, it is necessary to raise the reflection factor of the base of the display device. In addition, a base resisting to a temperature of about 350°C is requested. The base of the display device for use in optical recording, satisfying these requirements is prepared by etching the surface of Al or an Al alloy with hydrofluoric acid or a fluoride. This base can withstand temperature as high as about 350°C and has a desired optical property, i.e. reflectance of about 50% or more, brilliance of about 150 or less and a PCS value of about 0.6 or more.
COPYRIGHT: (C)1982,JPO&Japio
JP55164300A 1980-11-21 1980-11-21 Base of display material for use in optical recording Pending JPS5789475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164300A JPS5789475A (en) 1980-11-21 1980-11-21 Base of display material for use in optical recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164300A JPS5789475A (en) 1980-11-21 1980-11-21 Base of display material for use in optical recording

Publications (1)

Publication Number Publication Date
JPS5789475A true JPS5789475A (en) 1982-06-03

Family

ID=15790492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164300A Pending JPS5789475A (en) 1980-11-21 1980-11-21 Base of display material for use in optical recording

Country Status (1)

Country Link
JP (1) JPS5789475A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59797A (en) * 1982-05-14 1984-01-05 エ−リツヒ・ウチユ・コマンデイトゲゼルシヤフト Code bar for indication of massproduction parts
JPS6019528A (en) * 1983-07-13 1985-01-31 三菱化学株式会社 Manufacture of aluminum-synthetic resin laminate
JPS6051987A (en) * 1983-08-30 1985-03-23 Nissan Motor Co Ltd Manufacture of bar code card

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59797A (en) * 1982-05-14 1984-01-05 エ−リツヒ・ウチユ・コマンデイトゲゼルシヤフト Code bar for indication of massproduction parts
JPH0352113B2 (en) * 1982-05-14 1991-08-08 Eeritsuhi Uchu Kg
JPS6019528A (en) * 1983-07-13 1985-01-31 三菱化学株式会社 Manufacture of aluminum-synthetic resin laminate
JPS6051987A (en) * 1983-08-30 1985-03-23 Nissan Motor Co Ltd Manufacture of bar code card
JPH0344359B2 (en) * 1983-08-30 1991-07-05 Nissan Motor

Similar Documents

Publication Publication Date Title
JPS5298804A (en) Turbine operation
JPS5335565A (en) Electrochromic display device
JPS5789475A (en) Base of display material for use in optical recording
JPS55149909A (en) Selective light transmissible laminate
JPS539411A (en) Harmony correction circuit
JPS6445011A (en) Superconductive oxide ceramic material
JPS5424046A (en) Reflecting mirror
JPS5689701A (en) Half mirror
JPS5661536A (en) Reflection type heat collecting plate and method of manufacturing and using the same
JPS5294098A (en) Liquid crystal displaying device
JPS5558466A (en) Resistance measuring circuit
JPS5425493A (en) Manufacture of transparent conductive film
JPS52136679A (en) Abrasion test
JPS5411674A (en) Semiconductor device of mesa type
JPS5362556A (en) Semiconductor strain gauge bridge circuit
JPS5333095A (en) Liquid crystal display element
JPS5245270A (en) Semiconductor device
JPS52146699A (en) Production of combustible gas detecting element
JPS57195177A (en) Preparation of liquid crystal composition
JPS52120794A (en) Liquid crystal display unit
JPS5334498A (en) Liquid crystal display unit
JPS52104777A (en) All a -a alloy strand conductor
JPS5489770A (en) Optical type liquid level gauge
JPS5228377A (en) Temperature distribution measuring device
JPS52106680A (en) Surface stabilized semiconductor element