JPS6372655U - - Google Patents
Info
- Publication number
- JPS6372655U JPS6372655U JP16382086U JP16382086U JPS6372655U JP S6372655 U JPS6372655 U JP S6372655U JP 16382086 U JP16382086 U JP 16382086U JP 16382086 U JP16382086 U JP 16382086U JP S6372655 U JPS6372655 U JP S6372655U
- Authority
- JP
- Japan
- Prior art keywords
- reading
- light
- reading device
- information
- information reading
- 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.)
- Granted
Links
- 238000005286 illumination Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Description
第１図〜第７図はこの考案の一実施例を示した
もので、第１図は情報読み取り装置の照明手段の
構成を示す図、第２図は情報読み取り装置の全体
構成を示す断面図、第３図及び第４図は光学系の
設定条件を示した図、第５図は鏡面反射による指
向性を示した図、第６図はエンボスカードの鏡面
反射と乱反射を示した図、第７図は黒レベルの補
正を説明するための図である。
１……情報読み取り装置、３……エンボスカー
ド、１７……照明手段、１９……レンズ、２１…
…読み取り部、２３……光源、２５……拡散板、
２７……ハーフミラー。
Figures 1 to 7 show an embodiment of this invention, with Figure 1 being a diagram showing the configuration of the illumination means of the information reading device, and Figure 2 being a sectional view showing the overall configuration of the information reading device. , Figures 3 and 4 are diagrams showing the setting conditions of the optical system, Figure 5 is a diagram showing the directivity due to specular reflection, Figure 6 is a diagram showing specular reflection and diffuse reflection of the embossed card, FIG. 7 is a diagram for explaining black level correction. 1... Information reading device, 3... Embossed card, 17... Lighting means, 19... Lens, 21...
...Reading unit, 23...Light source, 25...Diffusion plate,
27...Half mirror.
Claims (1)
凸情報を読み取る情報読み取り装置において、前
記記録媒体の読み取り面をこの読み取り面に対し
て対向した位置から照らす照明手段と、前記読み
取り面に映る前記照明手段の虚像を捕らえる位置
に設けられたレンズと、このレンズを通して画像
を入力する読み取り部とを備えたことを特徴とす
る情報読み取り装置。 (2) 実用新案登録請求の範囲第１項記載の情報
読み取り装置において、前記照明手段は、光源と
、この光源の光を拡散させる拡散板と、この拡散
板の光を反射してこの反射光を前記読み取り面に
対して照射すると共に、前記読み取り面に映る前
記拡散板の虚像を前記レンズへ導くハーフミラー
とを備えたことを特徴とする情報読み取り装置。 (3) 実用新案登録請求の範囲第２項記載の情報
読み取り装置において、前記ハーフミラーの幅は
、前記読み取り面の読み取り幅より広いことを特
徴とする情報読み取り装置。[Claims for Utility Model Registration] (1) In an information reading device that reads unevenness information recorded on a recording medium with a glossy surface, an illumination that illuminates the reading surface of the recording medium from a position opposite to the reading surface. An information reading device comprising: means; a lens provided at a position to capture a virtual image of the illumination means reflected on the reading surface; and a reading section for inputting an image through the lens. (2) Utility Model Registration In the information reading device according to claim 1, the illumination means includes a light source, a diffuser plate that diffuses the light of the light source, and a diffuser that reflects the light of the diffuser plate to emit the reflected light. An information reading device characterized by comprising: a half mirror that irradiates the reading surface with light and guides a virtual image of the diffuser plate reflected on the reading surface to the lens. (3) Utility Model Registration The information reading device according to claim 2, wherein the width of the half mirror is wider than the reading width of the reading surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986163820U JPH0726767Y2 (en) | 1986-10-25 | 1986-10-25 | Information reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986163820U JPH0726767Y2 (en) | 1986-10-25 | 1986-10-25 | Information reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6372655U true JPS6372655U (en) | 1988-05-16 |
| JPH0726767Y2 JPH0726767Y2 (en) | 1995-06-14 |
Family
ID=31092372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986163820U Expired - Lifetime JPH0726767Y2 (en) | 1986-10-25 | 1986-10-25 | Information reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726767Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0258856U (en) * | 1988-10-21 | 1990-04-27 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57210458A (en) * | 1981-06-22 | 1982-12-24 | Nippon Telegr & Teleph Corp <Ntt> | Optical reader |
-
1986
- 1986-10-25 JP JP1986163820U patent/JPH0726767Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57210458A (en) * | 1981-06-22 | 1982-12-24 | Nippon Telegr & Teleph Corp <Ntt> | Optical reader |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0258856U (en) * | 1988-10-21 | 1990-04-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726767Y2 (en) | 1995-06-14 |
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