JPS6433744A - Optical card - Google Patents

Optical card

Info

Publication number
JPS6433744A
JPS6433744A JP62188770A JP18877087A JPS6433744A JP S6433744 A JPS6433744 A JP S6433744A JP 62188770 A JP62188770 A JP 62188770A JP 18877087 A JP18877087 A JP 18877087A JP S6433744 A JPS6433744 A JP S6433744A
Authority
JP
Japan
Prior art keywords
recording film
org
substrate
card
metallic sheet
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
JP62188770A
Other languages
Japanese (ja)
Inventor
Yoshikatsu Takeoka
Atsuko Iida
Hiroshi Ohira
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62188770A priority Critical patent/JPS6433744A/en
Publication of JPS6433744A publication Critical patent/JPS6433744A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To provide an optical card which obviates the exfoliation of a recording film from a transparent org. substrate and the cracking of the recording film by forming the card into 4-layered constitution in order of the substrate, the recording film, org. adhesive layer, and protective metallic sheet and specifying the thickness of the protective metallic sheet to a 0.01-0.4mm range. CONSTITUTION:This card is made into the 4-layered structure consisting in laminating the recording film 2, the org. adhesive layer 3 and the protective metallic sheet 4 successively on the transparent org. substrate 1. The thickness of the card is specified to 0.75+ or -0.08mm. Deformed build-up parts 5 called as bubbles are formed on the recording film 2 when a laser beam for recording is projected to the card from the transparent org. substrate 1 side. The protective metallic sheet 4 having the thickness ranging 0.01-0.4mm is used as the protective sheet and since the transparent org. substrate 1 deposited with the recording film 2 and the protective metallic sheet 4 are securely adhered by the org. adhesive layer 3, the card is strong to mechanical deformation and the important problems such as the exfoliation of the recording film 2 from the transparent org. substrate 1 and the cracking of the recording film 2 are obviated.
JP62188770A 1987-07-30 1987-07-30 Optical card Pending JPS6433744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62188770A JPS6433744A (en) 1987-07-30 1987-07-30 Optical card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62188770A JPS6433744A (en) 1987-07-30 1987-07-30 Optical card

Publications (1)

Publication Number Publication Date
JPS6433744A true JPS6433744A (en) 1989-02-03

Family

ID=16229472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62188770A Pending JPS6433744A (en) 1987-07-30 1987-07-30 Optical card

Country Status (1)

Country Link
JP (1) JPS6433744A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544429A (en) * 2005-03-03 2008-12-04 エンクスネット，インコーポレイテッド Optical disk with reduced plane thickness
JP2009512106A (en) * 2005-10-07 2009-03-19 エンクスネット，インコーポレイテッド Thin optical disc that can be read remotely

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544429A (en) * 2005-03-03 2008-12-04 エンクスネット，インコーポレイテッド Optical disk with reduced plane thickness
JP2009512106A (en) * 2005-10-07 2009-03-19 エンクスネット，インコーポレイテッド Thin optical disc that can be read remotely

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