JPH0284967U - - Google Patents
Info
- Publication number
- JPH0284967U JPH0284967U JP16480088U JP16480088U JPH0284967U JP H0284967 U JPH0284967 U JP H0284967U JP 16480088 U JP16480088 U JP 16480088U JP 16480088 U JP16480088 U JP 16480088U JP H0284967 U JPH0284967 U JP H0284967U
- Authority
- JP
- Japan
- Prior art keywords
- barcode
- reading device
- optical scanning
- scanning means
- diffraction grating
- 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 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Description
第１図は本考案の一実施例のバーコード読取り
装置の光学系の配置図、第２図は回折格子の正面
図、第３図は回折格子によつて得られるスポツト
の形状を示す図、第４図はバーコード上における
走査光の状態を示す図である。
１……バーコード読取り装置、２……バーコー
ド、５……半導体レーザ、７……回折格子、９…
…回転ミラー。
FIG. 1 is a layout diagram of the optical system of a barcode reading device according to an embodiment of the present invention, FIG. 2 is a front view of a diffraction grating, and FIG. 3 is a diagram showing the shape of a spot obtained by the diffraction grating. FIG. 4 is a diagram showing the state of scanning light on a barcode. 1...Barcode reader, 2...Barcode, 5...Semiconductor laser, 7...Diffraction grating, 9...
...Rotating mirror.
Claims (1)
手段によつてバーコードを光走査してバーコード
の内容を読取るバーコード読取り装置において、 前記光源と光走査手段の間の光路の途中に回折
格子を設けたことを特徴とするバーコード読取り
装置。[Claims for Utility Model Registration] A barcode reading device that guides light from a light source to an optical scanning means, and uses the optical scanning means to optically scan a barcode to read the contents of the barcode, comprising: A barcode reading device characterized in that a diffraction grating is provided in the middle of an optical path between means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16480088U JPH0284967U (en) | 1988-12-19 | 1988-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16480088U JPH0284967U (en) | 1988-12-19 | 1988-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0284967U true JPH0284967U (en) | 1990-07-03 |
Family
ID=31450714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16480088U Pending JPH0284967U (en) | 1988-12-19 | 1988-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0284967U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57111509A (en) * | 1980-12-29 | 1982-07-12 | Nippon Telegr & Teleph Corp <Ntt> | Fine space positioning device of information retrieval device |
| JPS636525B2 (en) * | 1985-12-28 | 1988-02-10 | Narisu Keshohin Kk |
-
1988
- 1988-12-19 JP JP16480088U patent/JPH0284967U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57111509A (en) * | 1980-12-29 | 1982-07-12 | Nippon Telegr & Teleph Corp <Ntt> | Fine space positioning device of information retrieval device |
| JPS636525B2 (en) * | 1985-12-28 | 1988-02-10 | Narisu Keshohin Kk |
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