JPH01144952U - - Google Patents
Info
- Publication number
- JPH01144952U JPH01144952U JP4089088U JP4089088U JPH01144952U JP H01144952 U JPH01144952 U JP H01144952U JP 4089088 U JP4089088 U JP 4089088U JP 4089088 U JP4089088 U JP 4089088U JP H01144952 U JPH01144952 U JP H01144952U
- Authority
- JP
- Japan
- Prior art keywords
- mounting board
- light
- objective lens
- barcode reader
- barcode
- 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
- 238000010586 diagram Methods 0.000 description 1
Description
第１図乃至第６図は本考案の一実施例を示した
ものである。第１図はバーコードリーダの縦断側
面図、第２図は取付基板の要部正面図、第３図は
第２図のＡ―Ａ線断面図、第４図はＬＥＤから発
せられた光の照度を解説する要部断面図、第５図
はＬＥＤの接続を示した回路図、第６図は出力信
号とノイズを示したグラフである。第７図乃至第
９図は従来例を示したものであり、第７図はＬＥ
Ｄの接続を示した回路図、第８図はＬＥＤから発
せられた光の照度を解説する要部断面図、第９図
は出力信号とノイズを示したグラフである。
１９……回路基板、２１……取付基板、２２…
…半球レンズ、２３……ＬＥＤ、２５ａ……ピン
ホール、２６……受光部、３０……中心孔、３２
……対物レンズ、３４……バーコード面。
1 to 6 show an embodiment of the present invention. Figure 1 is a longitudinal side view of the barcode reader, Figure 2 is a front view of the main parts of the mounting board, Figure 3 is a cross-sectional view taken along line A--A in Figure 2, and Figure 4 shows the light emitted from the LED. FIG. 5 is a cross-sectional view of main parts explaining illuminance, FIG. 5 is a circuit diagram showing the connection of LEDs, and FIG. 6 is a graph showing output signals and noise. Figures 7 to 9 show conventional examples, and Figure 7 shows the LE
FIG. 8 is a sectional view of a main part explaining the illuminance of light emitted from the LED, and FIG. 9 is a graph showing the output signal and noise. 19... Circuit board, 21... Mounting board, 22...
... Hemisphere lens, 23 ... LED, 25a ... Pinhole, 26 ... Light receiving part, 30 ... Center hole, 32
...Objective lens, 34...Barcode surface.
Claims (1)
物レンズを備え、之等の間に取付基板を設けると
共に、該取付基板の円周上へ等分割の位置にＬＥ
Ｄを配設し、該ＬＥＤの可視光を半球レンズにて
集光せしめてバーコード面を照射し、且つ、照射
後の光は前記取付基板の中心孔を通過して対物レ
ンズに入射し、更に、ピンホールを通過して受光
部にて受光し、回路基板に設けたＩＣ等を介して
電気信号を出力できるようにしたことを特徴とす
るバーコードリーダ。 (2) 前記取付基板には４個以上のＬＥＤを配設
したことを特徴とする請求項(1)記載のバーコー
ドリーダ。[Claims for Utility Model Registration] (1) A hemispherical lens provided at the tip and an objective lens therefor, with a mounting board provided between them, and at equally divided positions on the circumference of the mounting board. L.E.
D, the visible light of the LED is focused by a hemispherical lens to irradiate the barcode surface, and the light after irradiation passes through the center hole of the mounting board and enters the objective lens, Furthermore, the barcode reader is characterized in that the light passes through the pinhole, is received by the light receiving section, and can be outputted as an electrical signal via an IC or the like provided on the circuit board. (2) The barcode reader according to claim (1), wherein four or more LEDs are arranged on the mounting board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4089088U JPH01144952U (en) | 1988-03-28 | 1988-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4089088U JPH01144952U (en) | 1988-03-28 | 1988-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01144952U true JPH01144952U (en) | 1989-10-05 |
Family
ID=31267347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4089088U Pending JPH01144952U (en) | 1988-03-28 | 1988-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01144952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10501360A (en) * | 1994-10-25 | 1998-02-03 | ユナイテッド パーセル サービス オブ アメリカ，インコーポレイテッド | Automatic electronic camera for label image capture |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223990A (en) * | 1985-03-29 | 1986-10-04 | Stanley Electric Co Ltd | Bar code reader |
| JPS6324379A (en) * | 1986-07-16 | 1988-02-01 | Tokyo Electric Co Ltd | Optical reader |
-
1988
- 1988-03-28 JP JP4089088U patent/JPH01144952U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61223990A (en) * | 1985-03-29 | 1986-10-04 | Stanley Electric Co Ltd | Bar code reader |
| JPS6324379A (en) * | 1986-07-16 | 1988-02-01 | Tokyo Electric Co Ltd | Optical reader |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10501360A (en) * | 1994-10-25 | 1998-02-03 | ユナイテッド パーセル サービス オブ アメリカ，インコーポレイテッド | Automatic electronic camera for label image capture |
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