JPS63164039A - Optical recording medium - Google Patents
Optical recording mediumInfo
- Publication number
- JPS63164039A JPS63164039A JP61311525A JP31152586A JPS63164039A JP S63164039 A JPS63164039 A JP S63164039A JP 61311525 A JP61311525 A JP 61311525A JP 31152586 A JP31152586 A JP 31152586A JP S63164039 A JPS63164039 A JP S63164039A
- Authority
- JP
- Japan
- Prior art keywords
- information
- reading
- recorded
- recording
- opaque
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 abstract description 8
- 239000011521 glass Substances 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract 1
- 241001463014 Chazara briseis Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Credit Cards Or The Like (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的コ
（産業上の利用分野）
本発明は、たとえばレーザ光などを用いて光学的に読取
られる光学的な情報が記録された光メモリカードと称さ
れる光学的記録媒体に関する。DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Application Field) The present invention relates to an optical device called an optical memory card on which optical information that is optically read using, for example, a laser beam is recorded. related to digital recording media.
（従来の技術〉
従来、この種の光メモリカードは、たとえば第２図に示
すように、基材１の上に記録部材２が設けられ、この記
録部材２の上に光学的な情報３が記録されている。そし
て、記録部材２上の情報３が記録されている部分に透明
な保護部材４が設けられている。(Prior Art) Conventionally, in this type of optical memory card, as shown in FIG. 2, for example, a recording member 2 is provided on a base material 1, and optical information 3 is recorded on this recording member 2. A transparent protection member 4 is provided in a portion of the recording member 2 where the information 3 is recorded.
シカし、このように保護部材４が透明であると、肉眼あ
るいは拡大鏡を用いて記録部材２上の情報３が容易に読
取れるため、情報３０安全性が著しく低下し、たとえば
光メモリカードに個人の情報を記録しておくような用途
では、他人に個人の情報を容易に知られてしまうという
問題があった。However, if the protection member 4 is transparent, the information 3 on the recording member 2 can be easily read with the naked eye or using a magnifying glass, which significantly reduces the security of the information 30. In applications where personal information is recorded, there is a problem in that personal information can be easily disclosed to others.
（発明が解決しようとする問題点）
本発明は、上記したように記録部材上に記録された情報
が肉眼あるいは拡大鏡で容易に読取れるため、情報の安
全性が著しく低下するという問題点を解決すべくなされ
たもので、記録部材上に配録された情報を肉眼あるいは
拡大鏡で読取ることが困難となり、情報の安全性が大幅
に向上する光学的記録媒体を提供することを目的とする
。(Problems to be Solved by the Invention) The present invention solves the problem that, as described above, the information recorded on the recording member can be easily read with the naked eye or with a magnifying glass, so the security of the information is significantly reduced. The purpose is to provide an optical recording medium that makes it difficult to read the information recorded on the recording member with the naked eye or with a magnifying glass, and greatly improves the security of information. .
［Ｊ１明の構成］
（問題点を解決するための手段〉
本発明の光学的記録媒体は、記録部材上の少なくとも情
報記録部分に可視光の範囲で不透明で、かつ読取光の範
囲で透過する特性を有する部材で形成された層を有して
いる。[Configuration of J1 Ming] (Means for solving the problem) The optical recording medium of the present invention has at least the information recording portion on the recording member that is opaque in the range of visible light and transparent in the range of reading light. It has a layer made of a material having characteristics.
（作用）
記録部材上の少なくとも情報記録部分に可視光の範囲で
不透明で、かつ読取光の範囲で透過する特性を有する部
材で形成された層を設けることにより、記録部材上に記
録された情報を肉眼あるいは拡大鏡で読取ることが困難
となり、たとえば個人の情報が仙人に漏洩することを防
止でき、情報の安全性が大幅に向上する。(Function) By providing a layer formed of a material that is opaque in the visible light range and transparent in the reading light range at least in the information recording portion of the recording member, the information recorded on the recording member is It becomes difficult to read with the naked eye or with a magnifying glass, and for example, it is possible to prevent personal information from being leaked to a hermit, greatly improving the security of information.
（実施例）
以下、本発明の一実茄例について図面を参照して説明す
る。なお、第２図と同一部分には同一符号を付して説明
する。第１図において、基材１の上に記録部材２が設け
られ、この記録部材２の上に光学的な情報３が記録され
ている。そして、記録部材２上の情報３が記録されてい
る部分には、可視光の節回で不透明で、かつ読取光の範
囲で透過する特性を有する部材で形成された保護部材を
兼ねた層５が設けられている。ここに、層５の具体的な
例をあげると、米国のコダック社の商品名で［コダック
ラツテンフィルター７０Ｊあるいは［コダックラッテン
フィルター８９Ｂ」が適用可能である。このような部材
は、可視光の範囲でほとんど不透明であり、したがって
肉眼あるいは拡大鏡などで記録部材２上の情報３を読取
ることは困ガであり、情報３の安全性が大幅に向上する
。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. Note that the same parts as in FIG. 2 will be described with the same reference numerals. In FIG. 1, a recording member 2 is provided on a base material 1, and optical information 3 is recorded on this recording member 2. In the area on the recording member 2 where the information 3 is recorded, there is a layer 5 which also serves as a protective member and is made of a material that is opaque in the range of visible light and transparent in the range of reading light. is provided. Here, to give a specific example of the layer 5, it is possible to apply "Kodak Wratten Filter 70J" or "Kodak Wratten Filter 89B" which is a trade name of Kodak Company of the United States. Such a member is almost opaque in the visible light range, so it is difficult to read the information 3 on the recording member 2 with the naked eye or with a magnifying glass, and the security of the information 3 is greatly improved.
また、このように構成された光メモリカードの情報を読
取る読取装置は、読取光を赤外とすれば、層５の分光透
過率が赤外で大きくなるために通常の読取装置と同様の
構成となる。ここで、現在通常に用いられている読取光
は、半導体レーザ全損器あるいは赤外発光ダイオードか
ら発せられる光で、その波長は７８０ｎｍ〜９００ｎｍ
の範囲であり、変更することなく本光メモリカードの情
報を読取ることができる。In addition, the reading device configured in this way for reading information on an optical memory card has the same configuration as a normal reading device because if the reading light is infrared, the spectral transmittance of the layer 5 becomes large in the infrared. Become. Here, the reading light normally used at present is light emitted from a semiconductor laser total loss device or an infrared light emitting diode, and its wavelength is 780 nm to 900 nm.
This range allows the information on the optical memory card to be read without modification.
なお、前記実施例では、光メモリカードの構成を３層か
らなる構成としたが、記録部材上の情報記録部分を可視
光の範囲で不透明な部材で形成された層で覆う構成で何
層としてもいいことはいうまでもないことである。In the above embodiment, the optical memory card has a three-layer structure, but it is also possible to cover the information recording portion on the recording member with a layer made of a material that is opaque in the visible light range. It goes without saying that this is a good thing.
［発明の効果］
以上詳述したように本発明によれば、記録部材上に記録
された情報を肉眼あるいは拡大鏡で読取ることが困難と
なり、情報の安全性が大幅に向上する光学的記録媒体を
提供できる。[Effects of the Invention] As detailed above, the present invention provides an optical recording medium in which information recorded on a recording member is difficult to read with the naked eye or with a magnifying glass, and the security of information is greatly improved. can be provided.
第１図は本発明の一実施例を示すもので、同図（ａ）は
平面図、同図（ｂ）は縦断側面図、第２図は従来の光メ
モリカードを示すもので、同図（ａ）は平面図、同図（
ｂ）は縦断側面図である。
１・・・基材、２・・・記録部材、３・・・情報、５・
・・層。
出願人代理人 弁理士 鈴江武彦
（ａ）
（ｂ）
纂１図
（ａ）
（ｂ）
第２図FIG. 1 shows an embodiment of the present invention; FIG. 1(a) is a plan view, FIG. 2(b) is a vertical side view, and FIG. a) is a plan view, the same figure (
b) is a longitudinal side view. 1... Base material, 2... Recording member, 3... Information, 5...
··layer. Applicant's agent Patent attorney Takehiko Suzue (a) (b) Figure 1 (a) (b) Figure 2
Claims (1)
て、前記記録部材上の少なくとも情報記録部分に可視光
の範囲で不透明で、かつ読取光の範囲で透過する特性を
有する部材で形成された層を有することを特徴とする光
学的記録媒体。Optical information is recorded on a recording member, and at least the information recording portion of the recording member is made of a member that is opaque in the visible light range and transparent in the reading light range. An optical recording medium characterized in that it has a layer of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311525A JPS63164039A (en) | 1986-12-25 | 1986-12-25 | Optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311525A JPS63164039A (en) | 1986-12-25 | 1986-12-25 | Optical recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63164039A true JPS63164039A (en) | 1988-07-07 |
Family
ID=18018287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61311525A Pending JPS63164039A (en) | 1986-12-25 | 1986-12-25 | Optical recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63164039A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252149A (en) * | 1989-03-27 | 1990-10-09 | Kyodo Printing Co Ltd | optical card |
| JPH0310392A (en) * | 1989-06-08 | 1991-01-17 | Fuji Electric Co Ltd | Identification band and its information management system |
| JPH06234287A (en) * | 1990-10-19 | 1994-08-23 | Gao Ges Autom Org Mbh | Multilayer card-type data medium and its production |
-
1986
- 1986-12-25 JP JP61311525A patent/JPS63164039A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252149A (en) * | 1989-03-27 | 1990-10-09 | Kyodo Printing Co Ltd | optical card |
| JPH0310392A (en) * | 1989-06-08 | 1991-01-17 | Fuji Electric Co Ltd | Identification band and its information management system |
| JPH06234287A (en) * | 1990-10-19 | 1994-08-23 | Gao Ges Autom Org Mbh | Multilayer card-type data medium and its production |
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