JPS6376962U - - Google Patents
Info
- Publication number
- JPS6376962U JPS6376962U JP17209486U JP17209486U JPS6376962U JP S6376962 U JPS6376962 U JP S6376962U JP 17209486 U JP17209486 U JP 17209486U JP 17209486 U JP17209486 U JP 17209486U JP S6376962 U JPS6376962 U JP S6376962U
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- bandpass filter
- light
- laser
- sensor
- 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
- 239000011521 glass Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図ないし第３図はこの考案の一実施例を示
すもので、第１図は縦断側面図、第２図は分解斜
視図、第３図は受光センサの斜視図、第４図は変
形例を示す水平断面図、第５図は従来例を示す読
取り装置の概略構成図、第６図は出力波形図、第
７図はフイルタの波長特性図である。
１……原稿（読取り対象物）、４……レーザ光
源、６……回転多面鏡（光走査器）、８……受光
器、９……集光レンズ、１０……受光センサ、１
３……受光面、１４……センサ保護ガラス、１５
……センサケース、１７……レンズブロツク、１
７ｃ……開口周縁部、２１……バンドパスフイル
タ、２１ａ……取付け部。
Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a longitudinal side view, Figure 2 being an exploded perspective view, Figure 3 being a perspective view of the light receiving sensor, and Figure 4 being a modified version. FIG. 5 is a schematic configuration diagram of a reading device showing a conventional example, FIG. 6 is an output waveform diagram, and FIG. 7 is a wavelength characteristic diagram of a filter. 1... Document (object to be read), 4... Laser light source, 6... Rotating polygon mirror (optical scanner), 8... Light receiver, 9... Condensing lens, 10... Light receiving sensor, 1
3... Light receiving surface, 14... Sensor protection glass, 15
...Sensor case, 17...Lens block, 1
7c...opening periphery, 21...bandpass filter, 21a...attachment part.
Claims (1)
ームを読取り対象物上で走査させる光走査器と、
レンズブロツクにより集光レンズと受光センサと
を一体化してなり前記読取り対象物からの反射光
を集光レンズで受光センサに結像させる受光器と
を備え、前記集光レンズと前記受光センサとの間
にバンドパスフイルタを介在させたレーザ読取り
装置において、前記バンドパスフイルタを前記受
光センサの受光面のサイズより大きめに形成し、
このバンドパスフイルタの一面を前記レンズブロ
ツクの開口周縁部に当接させるとともに他面を前
記受光センサのセンサケース又はセンサ保護ガラ
スに当接させ、前記受光面サイズ外の光有効通過
領域外をこのバンドパスフイルタの取付け部とし
て挾着固定したことを特徴とするレーザ読取り装
置。 a laser light source; an optical scanner that scans a reading target with a laser beam from the laser light source;
A light receiver is provided, which integrates a condensing lens and a light receiving sensor by a lens block, and forms an image of the reflected light from the object to be read on the light receiving sensor using the condensing lens. In a laser reading device having a bandpass filter interposed therebetween, the bandpass filter is formed to be larger than the size of the light receiving surface of the light receiving sensor,
One surface of this bandpass filter is brought into contact with the opening periphery of the lens block, and the other surface is brought into contact with the sensor case or sensor protection glass of the light receiving sensor, so that the outside of the light effective passage area outside the light receiving surface size is covered by this bandpass filter. A laser reading device characterized in that a bandpass filter is clamped and fixed as an attachment part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17209486U JPS6376962U (en) | 1986-11-10 | 1986-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17209486U JPS6376962U (en) | 1986-11-10 | 1986-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6376962U true JPS6376962U (en) | 1988-05-21 |
Family
ID=31108326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17209486U Pending JPS6376962U (en) | 1986-11-10 | 1986-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6376962U (en) |
-
1986
- 1986-11-10 JP JP17209486U patent/JPS6376962U/ja active Pending