JP2513267B2 - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JP2513267B2
JP2513267B2 JP63039262A JP3926288A JP2513267B2 JP 2513267 B2 JP2513267 B2 JP 2513267B2 JP 63039262 A JP63039262 A JP 63039262A JP 3926288 A JP3926288 A JP 3926288A JP 2513267 B2 JP2513267 B2 JP 2513267B2
Authority
JP
Japan
Prior art keywords
optical
card
recording layer
optical recording
recording medium
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.)
Expired - Fee Related
Application number
JP63039262A
Other languages
Japanese (ja)
Other versions
JPH01214487A (en
Inventor
清 豊田
順一 赤松
真人 山村
裕 大木
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP63039262A priority Critical patent/JP2513267B2/en
Publication of JPH01214487A publication Critical patent/JPH01214487A/en
Application granted granted Critical
Publication of JP2513267B2 publication Critical patent/JP2513267B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373Metallic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23Identity cards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/351Translucent or partly translucent parts, e.g. windows
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/465Associating two or more layers using chemicals or adhesives
    • B42D25/47Associating two or more layers using chemicals or adhesives using adhesives

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、光学カード等の光学記録媒体に関する。TECHNICAL FIELD The present invention relates to an optical recording medium such as an optical card.

〔発明の概要〕[Outline of Invention]

本発明は、光学カード等の光学記録媒体において、透
明基板上に形成された記録層を透明膜で被覆保護すると
共に、この透明膜の表面に所定のパターンの陰画を印刷
することにより、この所定のパターンを、記録層裏面の
金属光沢を有する陽画として、高級感を伴って表示する
ようにしたものである。
The present invention, in an optical recording medium such as an optical card, covers and protects a recording layer formed on a transparent substrate with a transparent film and prints a negative image of a predetermined pattern on the surface of the transparent film to obtain the predetermined pattern. This pattern is displayed as a positive image having a metallic luster on the back surface of the recording layer with a sense of quality.

〔従来の技術〕[Conventional technology]

従来、いわゆるメモリーカード等、各種の情報信号
を、光学的に読み取ることができるように記録した光学
記録媒体が知られている。
Conventionally, there are known optical recording media such as so-called memory cards in which various information signals are recorded so that they can be optically read.

まず、第7図及び第8図を参照しながら、従来の光学
記録媒体としての光学カードについて説明する。
First, an optical card as a conventional optical recording medium will be described with reference to FIGS. 7 and 8.

この両図において、(10)は光学カードであって、例
えばポリカーボネートから成る透明基板(11)の一面に
光学記録層(12)が形成される。第8図に示すように、
この記録層(12)は、例えば、Sb2Se3が400Åの厚さに
蒸着された第1記録層(12a)と、この上にBi2Te3が400
Åの厚さに蒸着された第2記録層(12b)とで構成され
る。
In both figures, (10) is an optical card, and an optical recording layer (12) is formed on one surface of a transparent substrate (11) made of polycarbonate, for example. As shown in FIG.
The recording layer (12) includes, for example, a first recording layer (12a) on which Sb 2 Se 3 is vapor-deposited with a thickness of 400 Å, and Bi 2 Te 3 on the first recording layer (12a).
It is composed of a second recording layer (12b) vapor-deposited with a thickness of Å.

記録前に、この記録層(12)を基板(11)側からみた
反射率は、例えば6328Åの波長の光に対して7%程度で
あるが、記録時のレーザ光の照射により、第1及び第2
の記録層(12a)及び(12b)が合金化して、照射部分の
反射率は36%程度まで上昇する。一方、第2記録層(12
b)側からみた反射率は、レーザ光の照射の有無に拘ら
ず、例えば45%程度である。
The reflectance of the recording layer (12) seen from the substrate (11) side before recording is, for example, about 7% with respect to light having a wavelength of 6328Å. Second
The recording layers (12a) and (12b) are alloyed, and the reflectance of the irradiated portion rises to about 36%. On the other hand, the second recording layer (12
The reflectance viewed from the b) side is, for example, about 45% regardless of the presence or absence of laser light irradiation.

(13)は保護膜であって、適宜の顔料の混練により不
透明にされた合成樹脂フイルムから成り、その表面には
文字または図形から成る所定のパターンの陽画Pが印刷
される。即ち、インク(14){(14c)及び(14f)}が
このパターンの部分だけに付着する。印刷されたパター
ンは、例えば紫外線硬化性樹脂からなるハードコート
(15)で保護される。
Reference numeral (13) is a protective film, which is made of a synthetic resin film made opaque by kneading an appropriate pigment, and a positive image P having a predetermined pattern of characters or figures is printed on the surface thereof. That is, the ink (14) {(14c) and (14f)} adheres only to this pattern portion. The printed pattern is protected by a hard coat (15) made of, for example, an ultraviolet curable resin.

このような保護膜(13)が、第7図では図示を省略し
た接着層(16)によって、記録層(12)に接着されて、
記録層(12)がシールされる。
Such a protective film (13) is adhered to the recording layer (12) by an adhesive layer (16) not shown in FIG. 7,
The recording layer (12) is sealed.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

前述のような従来の光学記録媒体は、不透明保護膜
(13)の表面に、通常のインク(14)により所定のパタ
ーンが形成されて、普通の外観を呈するものであって、
高級感に欠けるという問題があった。
The above-mentioned conventional optical recording medium has a predetermined pattern formed on the surface of the opaque protective film (13) by the normal ink (14), and has a normal appearance.
There was a problem of lacking a sense of quality.

観る者に高級感を与えるためには、金属光沢を有する
材料を用いることが一般的であるが、例えばアルミニウ
ム蒸着フイルムを不透明保護膜(13)として用いた場
合、原価が上昇するという問題が生ずる。
It is common to use a material having metallic luster in order to give the viewer a sense of quality. However, if an aluminum vapor-deposited film is used as the opaque protective film (13), the cost increases. .

かかる点に鑑み、本発明の目的は、原価を上昇させる
ことなく、所定のパターンを高級感を伴って個性的に表
示することのできる光学記録媒体を提供するところにあ
る。
In view of such a point, an object of the present invention is to provide an optical recording medium capable of displaying a predetermined pattern uniquely with a sense of quality without increasing the cost.

〔課題を解決するための手段〕[Means for solving the problem]

本発明は、透明基板(11)上の光学記録層(12)を保
護層で被覆するようにした光学記録媒体において、保護
層を透明膜(23)とすると共に、この透明膜の表面に所
定のパターンの陰画を印刷するようにした光学記録媒体
である。
The present invention provides an optical recording medium in which an optical recording layer (12) on a transparent substrate (11) is covered with a protective layer, wherein the protective layer is a transparent film (23), and the surface of the transparent film has a predetermined thickness. Is an optical recording medium for printing a negative image of the pattern.

〔作用〕[Action]

かかる構成によれば、所定のパターンが、光学記録層
の裏面の金属光沢を有する陽画として表示される。
According to this structure, the predetermined pattern is displayed as a positive image having a metallic luster on the back surface of the optical recording layer.

〔実施例〕〔Example〕

以下、第1図及び第2図を参照しながら、本発明によ
る光学記録媒体の一実施例について説明する。
An embodiment of the optical recording medium according to the present invention will be described below with reference to FIGS. 1 and 2.

本発明の一実施例の構成を第1図及び第2図に示す。
この両図において、前出第7図及び第8図に対応する部
分には同一の符号を付して重複説明を省略する。
The structure of an embodiment of the present invention is shown in FIGS.
In both of these figures, the parts corresponding to those in FIGS. 7 and 8 above are designated by the same reference numerals, and a duplicate description will be omitted.

第1図及び第2図において、(20)は光学記録媒体と
しての光学カードを全体として示し、例えばポリエチレ
ンテレフタレートのような透明の合成樹脂フイルムから
成る保護膜(23)の表面には所定のパターンの陰画Nが
印刷される。即ち、インク(24)がこの透明保護膜(2
3)のほぼ全面にわたって、例えば灰色の地(不透明
層)を形成し、所定のパターンの部分は、インク(24)
が付着することなく、インク欠除部(24c)及び(24f)
が形成されて、灰色の地の間に透明保護膜(23)が露呈
される。印刷された陰画パターンNは、例えば紫外線硬
化性樹脂からなるハードコート(25)で保護される。
In FIGS. 1 and 2, (20) shows an optical card as an optical recording medium as a whole, and a predetermined pattern is formed on the surface of a protective film (23) made of a transparent synthetic resin film such as polyethylene terephthalate. Negative image N is printed. In other words, the ink (24) is the transparent protective film (2
For example, a gray background (opaque layer) is formed on almost the entire surface of 3), and the part of the predetermined pattern is the ink (24).
Ink depletion parts (24c) and (24f)
Are formed, and the transparent protective film (23) is exposed between the gray grounds. The printed negative pattern N is protected by a hard coat (25) made of, for example, an ultraviolet curable resin.

上述のような保護膜(23)が、第1図では図示を省略
した透明接着層(16)によって、基板(11)上に形成さ
れた記録層(12)に接着される。
The protective film (23) as described above is adhered to the recording layer (12) formed on the substrate (11) by the transparent adhesive layer (16) not shown in FIG.

これにより、本実施例においては、第2の記録層(12
b)の表面が、いずれも透明の接着層(16)、保護膜(2
3)及びハードコート(25)を透して、印刷インク(2
4)による灰色の地の間から部分的に見える。
Accordingly, in the present embodiment, the second recording layer (12
The surface of b) is transparent adhesive layer (16), protective film (2)
3) and the hard coat (25) through the printing ink (2
4) Partially visible from between the gray ground.

前述のように、第2の記録層(12b)の表面は、45%
程度の高い反射率を有し、接着層(16)〜ハードコート
(25)を透しても、なお40%程度の高い反射率を呈す
る。
As mentioned above, the surface of the second recording layer (12b) is 45%.
It has a high reflectance, and even when it passes through the adhesive layer (16) to the hard coat (25), it still exhibits a high reflectance of about 40%.

従って、本実施例においては、所定の文字または図形
のパターンが、印刷インク(24)による地に、金属光沢
を有する陽画として表示されて、美麗かつ個性的な外観
の光学カードが得られる。
Therefore, in this embodiment, a predetermined character or graphic pattern is displayed as a positive image having a metallic luster on the background of the printing ink (24), and an optical card having a beautiful and unique appearance is obtained.

なお、上述の実施例では、記録層(12)をSb2Se3から
なる第1層(12a)と、Bi2Te3からなる第2層(12b)と
で構成したが、Sb2Se3からなる単一層で構成した場合で
も、記録層(12)の保護膜(23)側の面が高反射率を有
し、同様に、高級感を伴って所定のパターンを表示する
ことができる。
In the above embodiment, the first layer of the recording layer (12) from Sb 2 Se 3 and (12a), is constituted out second layer of Bi 2 Te 3 and (12b), Sb 2 Se 3 Even when the recording layer (12) is formed of a single layer, the surface of the recording layer (12) on the protective film (23) side has a high reflectance, and similarly, a predetermined pattern can be displayed with a sense of luxury.

次に、第3図及び第4図を参照しながら、本発明によ
る光学カードの他の実施例について説明する。
Next, another embodiment of the optical card according to the present invention will be described with reference to FIGS. 3 and 4.

本発明の他の実施例の構成を第3図に示す。この第3
図において、前出第1図及び第7図に対応する部分には
同一の符号を付して重複説明を省略する。
The configuration of another embodiment of the present invention is shown in FIG. This third
In the figure, parts corresponding to those in FIGS. 1 and 7 are designated by the same reference numerals, and duplicate description will be omitted.

第3図において、(24b)はバーコードに対応するイ
ンク欠除部(バーコード部)であって、例えば記録層
(12)に記録された主情報のうち、認識情報IDバーコー
ド形式で印刷されている。その余の構成は第1図の実施
例と同様である。
In FIG. 3, (24b) is an ink lacking part (bar code part) corresponding to a bar code, for example, in the main information recorded on the recording layer (12), printed in the recognition information ID bar code format. Has been done. The remaining structure is the same as that of the embodiment shown in FIG.

第3図の実施例の光学カード(20B)のための読取装
置(30)は、第4図に示すように、カード載置台(31)
の下側の主情報読取光学系(32)と、上側のバーコード
読取光学系(35)とを有する。両光学系(32)及び(3
5)は、発光ダイオード(33)及び(36)からの光をカ
ード(20B)の記録層(12)及びバーコード部(24b)に
それぞれ照射して、カード(20B)からの反射光をそれ
ぞれCCD受光器(ラインセンサ)(34)及びフォトダイ
オード(37)で検出するように構成される。(38)は供
送ローラである。
The reader (30) for the optical card (20B) of the embodiment shown in FIG. 3 has a card mounting table (31) as shown in FIG.
It has a lower main information reading optical system (32) and an upper bar code reading optical system (35). Both optical systems (32) and (3
5) irradiates the recording layer (12) and the bar code part (24b) of the card (20B) with light from the light emitting diodes (33) and (36), respectively, and reflects light from the card (20B), respectively. A CCD light receiver (line sensor) (34) and a photodiode (37) are used for detection. (38) is a feeding roller.

光学系(35)によって読み取られたバーコードが所定
のIDと一致しない場合、光学系(32)による主情報読取
を待たずに、カード(20B)が装置(30)外に排出され
る。
When the barcode read by the optical system (35) does not match the predetermined ID, the card (20B) is ejected to the outside of the device (30) without waiting for the main information read by the optical system (32).

前述のように、保護膜(23)側から見た記録層(12)
の反射率が40%程度と高いため、バーコード部(24b)
は光学的に高コントラストとなり、検出裕度が大きくな
って、バーコード読取光学系(35)として構成が簡単で
低価格のものを使用することができる。
As described above, the recording layer (12) viewed from the protective film (23) side.
Since the reflectance of is as high as about 40%, the barcode part (24b)
Has a high optical contrast and a large detection margin, and a bar code reading optical system (35) with a simple structure and low cost can be used.

また、カード(20B)の挿入直後にバーコードが読み
取られない場合は、逆向きに挿入されたものと判断され
て、同様に、カード(20B)が排出され、逆方向挿入が
防止される。
If the barcode cannot be read immediately after the card (20B) is inserted, it is determined that the card (20B) has been inserted in the opposite direction, and the card (20B) is similarly ejected to prevent the reverse insertion.

次に、第5図及び第6図を参照しながら、本発明によ
る光学カードの更に他の実施例について説明する。
Next, another embodiment of the optical card according to the present invention will be described with reference to FIGS. 5 and 6.

本発明の更に他の実施例の構成を第5図に示す。この
第5図において、前出第1図及び第7図に対応する部分
には同一の符号を付して重複説明を省略する。
The configuration of still another embodiment of the present invention is shown in FIG. In FIG. 5, parts corresponding to those shown in FIGS. 1 and 7 are designated by the same reference numerals, and redundant description will be omitted.

第5図において、(24m)は位置決めマークとしての
インク欠除部であって、光学カード(20M)の長手方向
(X方向)及び幅方向(Y方向)にそれぞれ対応する基
準線を有する。その余の構成は第1図の実施例と同様で
ある。
In FIG. 5, (24m) is an ink lacking portion as a positioning mark, and has reference lines corresponding to the longitudinal direction (X direction) and the width direction (Y direction) of the optical card (20M). The remaining structure is the same as that of the embodiment shown in FIG.

第5図の実施例の光学カード(20B)のための光学装
置(40)は、第6図に示すように、カード載置台(トレ
イ)(41)の下側の主情報書込光学系(42)と、上側の
位置決めマーク読取用光学系(ピックアップ)(43)と
を有する。両光学系(42)及び(43)は、図示を省略し
た同一基台に固定され、トレイ(41)はカード(20M)
を載置してX方向及びY方向に移動するように構成され
ている。
As shown in FIG. 6, the optical device (40) for the optical card (20B) of the embodiment shown in FIG. 5 has a main information writing optical system (below the card mounting table (tray) (41). 42) and an upper positioning mark reading optical system (pickup) (43). Both optical systems (42) and (43) are fixed on the same base (not shown), and the tray (41) is a card (20M).
Is mounted and moved in the X and Y directions.

図示を省略した給送機構によって、光学カード(20
M)がトレイ(41)に載置されると、トレイ(41)がま
ずX方向に移動する。ピックアップ(43)はレーザダイ
オード(44)からの光をカード(20M)の上面(24b)に
照射して、カード(20M)からの反射光をビームスプリ
ッタ(45)を介してフォトダイオード(46)で受光す
る。
An optical card (20
When M) is placed on the tray (41), the tray (41) first moves in the X direction. The pickup (43) irradiates the light from the laser diode (44) onto the upper surface (24b) of the card (20M), and the reflected light from the card (20M) passes through the beam splitter (45) to the photodiode (46). To receive light.

ピックアップ(43)が位置決めマーク(24m)のX方
向の基準線を検出すると、トレイ(41)はX方向の移動
を停止し、カード(20M)がX方向に関して所定位置に
配される。
When the pickup (43) detects the reference line of the positioning mark (24m) in the X direction, the tray (41) stops moving in the X direction, and the card (20M) is placed at a predetermined position in the X direction.

次いで、トレイ(41)がY方向に移動し、上述と同様
にして、カード(20M)がY方向に関して所定位置に配
されて、位置決めが完了する。
Next, the tray (41) moves in the Y direction, the card (20M) is placed at a predetermined position in the Y direction in the same manner as described above, and the positioning is completed.

しかる後、書込光学系(42)の高レベルのレーザ光LB
がカード(20M)の記録層(12)を照射して、主情報が
所定の領域に書き込まれる。
Then, the high level laser light LB of the writing optical system (42)
Illuminates the recording layer (12) of the card (20M), and main information is written in a predetermined area.

上記実施例においては、光学記録媒体として、一例で
ある光学カードについて説明したが、これに限らず透明
基板上の光学記録層を保護層で被覆している各種光学記
録媒体に適用できる。
Although an optical card as an example has been described as the optical recording medium in the above-described embodiments, the present invention is not limited to this, and can be applied to various optical recording media in which the optical recording layer on the transparent substrate is covered with a protective layer.

〔発明の効果〕〔The invention's effect〕

以上詳述のように、本発明によれば、透明基板上に形
成された記録層を透明膜で被覆保護すると共に、この透
明膜の表面に所定のパターンの陰画を印刷するようにし
たので、この所定のパターンを、記録層裏面の金属光沢
を有する陽画として、高級感を伴って個性的に表示する
ことができる光学記録媒体が得られる。
As described above in detail, according to the present invention, the recording layer formed on the transparent substrate is covered and protected by the transparent film, and a negative image having a predetermined pattern is printed on the surface of the transparent film. By using this predetermined pattern as a positive image having a metallic luster on the back surface of the recording layer, it is possible to obtain an optical recording medium capable of displaying individuality with a sense of quality.

【図面の簡単な説明】[Brief description of drawings]

第1図及び第2図は本発明による光学カードの一実施例
の構成を示す斜視図及び分解断面図、第3図は本発明の
他の実施例の構成を示す斜視図、第4図は、第3図の実
施例のための読取装置の構成を示す略線側面図、第5図
は本発明の更に他の実施例の構成を示す斜視図、第6図
は第5図の実施例のための光学装置の構成を示す略線側
面図、第7図及び第8図は従来の光学カードの構成例を
示す斜視図及び分解断面図である。 (11)は透明基板、(12)は光学記録層、(20),(20
B),(20M)は光学カード、(23)は透明保護膜、(2
4)は印刷インク、(24b),(24c),(24f),(24
m)はインク欠除部である。
1 and 2 are a perspective view and an exploded sectional view showing the construction of an embodiment of an optical card according to the present invention, FIG. 3 is a perspective view showing the construction of another embodiment of the present invention, and FIG. FIG. 5 is a schematic side view showing the construction of a reading device for the embodiment of FIG. 3, FIG. 5 is a perspective view showing the construction of still another embodiment of the present invention, and FIG. 6 is the embodiment of FIG. FIG. 7 is a schematic line side view showing the configuration of an optical device for the above, FIG. 7 and FIG. (11) is a transparent substrate, (12) is an optical recording layer, (20), (20
B) and (20M) are optical cards, (23) is a transparent protective film, (2
4) is printing ink, (24b), (24c), (24f), (24
m) is an ink lacking section.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】透明基板上の光学記録層を保護層で被覆す
るようにした光学記録媒体において、 上記保護層を透明膜とすると共に、 この透明膜の表面に所定のパターンの陰画を印刷するよ
うにしたことを特徴とする光学記録媒体。
1. An optical recording medium in which an optical recording layer on a transparent substrate is covered with a protective layer, wherein the protective layer is a transparent film, and a negative image having a predetermined pattern is printed on the surface of the transparent film. An optical recording medium characterized by the above.
JP63039262A 1988-02-22 1988-02-22 Optical recording medium Expired - Fee Related JP2513267B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63039262A JP2513267B2 (en) 1988-02-22 1988-02-22 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63039262A JP2513267B2 (en) 1988-02-22 1988-02-22 Optical recording medium

Publications (2)

Publication Number Publication Date
JPH01214487A JPH01214487A (en) 1989-08-28
JP2513267B2 true JP2513267B2 (en) 1996-07-03

Family

ID=12548220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63039262A Expired - Fee Related JP2513267B2 (en) 1988-02-22 1988-02-22 Optical recording medium

Country Status (1)

Country Link
JP (1) JP2513267B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05254283A (en) * 1992-03-10 1993-10-05 Omron Corp Optical card and reader thereof
US7461791B2 (en) * 2006-02-03 2008-12-09 Arthur Blank & Company, Inc. Method and apparatus for forming ISO-compliant transaction cards including PLA

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0739060Y2 (en) * 1987-11-26 1995-09-06 凸版印刷株式会社 Optical disc

Also Published As

Publication number Publication date
JPH01214487A (en) 1989-08-28

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