JPS6135748B2 - - Google Patents
Info
- Publication number
- JPS6135748B2 JPS6135748B2 JP53009787A JP978778A JPS6135748B2 JP S6135748 B2 JPS6135748 B2 JP S6135748B2 JP 53009787 A JP53009787 A JP 53009787A JP 978778 A JP978778 A JP 978778A JP S6135748 B2 JPS6135748 B2 JP S6135748B2
- Authority
- JP
- Japan
- Prior art keywords
- lens frame
- mounting plate
- scanning element
- lens
- side end
- 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.)
- Expired
Links
- 238000003384 imaging method Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Heads (AREA)
Description
【発明の詳細な説明】
この発明は、固定走査素子を用いて原稿画像を
光学的に読取り作動させるようにしたフアクシミ
リ等の読取装置における走査素子の取付角調整装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for adjusting the mounting angle of a scanning element in a reading device such as a facsimile machine which uses a fixed scanning element to optically read an original image.
初めに、この種の読取装置における固体走査素
子の配設態様につき、第1図および第2図によつ
て説明する。 First, the arrangement of solid-state scanning elements in this type of reading device will be explained with reference to FIGS. 1 and 2. FIG.
原稿1の画像面1aを照明するための光源2
は、画像面1aの主走査線3に沿つてその至近に
配設されており、更に、原稿1からの反射光Lの
光路上には、結像レンズ4と固定走査素子5が配
置されていて、主走査線3の画像反射光束は、ア
レイ状CCD、フオトダイオードアレイ等で形成
された走査素子5の受光部6に結像し、その結像
光は、素子5の電子自己走査作用により光電変換
されて、原稿画像が読取られる。 A light source 2 for illuminating the image surface 1a of the original 1
is arranged close to the main scanning line 3 of the image plane 1a, and furthermore, an imaging lens 4 and a fixed scanning element 5 are arranged on the optical path of the reflected light L from the original 1. The image reflected light flux of the main scanning line 3 forms an image on the light receiving section 6 of the scanning element 5 formed by an arrayed CCD, a photodiode array, etc., and the imaged light is generated by the electronic self-scanning action of the element 5. The original image is read by photoelectric conversion.
ところで、第2図に示すように、走査素子5の
受光部6の取付位置が、反射光Lの走査結像線A
に対して傾きのずれを生じると、結像のピント外
れに起因して画像の光電変換作動の忠実度が低下
する特性があるが、走査素子5の寸度が極めて小
さいことから、ずれの許容度は極くわずかであ
り、一般には、走査素子5の製作寸法精度、およ
びその組付寸法精度を以てしても、このずれを許
容範囲内に収めることは困難である。 By the way, as shown in FIG.
If there is a shift in the tilt, the fidelity of the photoelectric conversion operation of the image will decrease due to the image being out of focus, but since the dimensions of the scanning element 5 are extremely small, the tolerance for the shift is low. The degree of deviation is extremely small, and in general, it is difficult to keep this deviation within an allowable range even with the dimensional accuracy of manufacturing the scanning element 5 and the dimensional accuracy of its assembly.
すなわち、現在の製造技術では、走査素子5の
セラミツクカバー面から受光部6までの平行性、
および間隔寸度の加工精度には限界があり、か
つ、素子を保持して駆動回路を形成する基板、お
よびソケツトの加工精度にも限界があり、その
上、光学系自体にも、光軸の偏心やずれのための
走査結像線Aの位置ずれが避け難く、このような
ことから、現在のこの種の読取装置では、固体走
査素子5の取付角調整装置を設けて、素子の出力
信号を見ながら受光部6を走査結像線Aに合わせ
るように調整することが実用的な整合方法とされ
ている。 That is, with the current manufacturing technology, the parallelism from the ceramic cover surface of the scanning element 5 to the light receiving part 6,
There are limits to the machining accuracy of the components and spacing dimensions, and there are also limits to the machining accuracy of the substrate and socket that hold the elements and form the drive circuit.Furthermore, the optical system itself has limitations on the optical axis. It is difficult to avoid misalignment of the scanning imaging line A due to eccentricity or misalignment, and for this reason, current reading devices of this type are equipped with an installation angle adjustment device for the solid-state scanning element 5 to adjust the output signal of the element. A practical alignment method is to adjust the light receiving section 6 to match the scanning imaging line A while looking at the image.
しかして、従来の取付角調整装置では、傾き角
が調整可能な接続具を介して走査素子を不動部に
結合させる方法のものとか、あるいは、弾性体を
介装した調整ねじのねじ止めによつて走査素子を
不動部に結合させるような方式などが採られてい
たが、このような従来の調整構造では、走査素子
5を本体に取付けたままでの調整操作が困難であ
つたり、また、調整位置の再現性が乏しかつた
り、その調整のための構成が複雑となつたり、更
には、調整後において振動や衝撃で調整位置にず
れが生じるなど、その操作性および安定性の面で
実用的でない欠点があつた。 However, with conventional installation angle adjustment devices, the scanning element is connected to a stationary part through a connector whose inclination angle can be adjusted, or by screwing an adjustment screw with an elastic body interposed. However, with such a conventional adjustment structure, it is difficult to perform adjustment operations while the scanning element 5 is attached to the main body, and the adjustment The repeatability of the position is poor, the configuration for adjustment is complicated, and furthermore, the adjusted position may shift due to vibration or shock after adjustment, making it impractical in terms of operability and stability. There was a drawback that it wasn't.
本発明は、上記欠点を解消するためになされた
ものであつて、すなわち、本発明の目的は、簡単
な構造で調整操作が容易で、かつ、調整作動が確
実な走査素子の取付角調整装置を提供することに
ある。 The present invention has been made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide a mounting angle adjustment device for a scanning element that has a simple structure, is easy to adjust, and has a reliable adjustment operation. Our goal is to provide the following.
以下、図示の実施例に基づいて本発明を説明す
る。 The present invention will be described below based on illustrated embodiments.
実施例の調整装置においては、光学系中に配設
されるレンズフレームには、第3図ないし第6図
に示すようU形断面を有するブロツク状のレンズ
フレーム7が用いられる。このレンズフレーム7
は、その下部をなす基部7aと、フレームの左右
側部をなす台部7b,7cが一体に成形されたも
のであつて、結像レンズ8を保持するレンズ筒9
は、基部7aの中央を貫通するねじ孔に光軸方向
の位置を調整し得るように螺合されている。 In the adjusting device of the embodiment, a block-shaped lens frame 7 having a U-shaped cross section is used as the lens frame disposed in the optical system, as shown in FIGS. 3 to 6. This lens frame 7
The lens barrel 9 that holds the imaging lens 8 is formed by integrally molding a base portion 7a forming the lower part and base portions 7b and 7c forming the left and right side portions of the frame.
is screwed into a screw hole passing through the center of the base 7a so that its position in the optical axis direction can be adjusted.
しかして、レンズフレーム7の出光側端面をな
す台部7b,7cの上面の中、一方の台部7bの
上面には、複数(図示では2個)の鋲頭形の突出
体10が前後に固設されており、かつその中間に
は、固定ねじ11をねじ込むためのねじ孔7dが
穿孔されている。 Among the upper surfaces of the pedestals 7b and 7c forming the light-emitting side end surface of the lens frame 7, a plurality (two in the figure) of riveted head-shaped protrusions 10 are arranged in the front and back on the upper surface of one of the pedestals 7b. It is fixedly installed, and a screw hole 7d into which the fixing screw 11 is screwed is bored in the middle thereof.
また、他方の台部7cの上面外縁の中間部は、
内方下向きに傾斜して方形に切欠かれると共に、
この切欠部7eの内壁には、案内孔7fとねじ孔
7gが穿設され、かつ同切欠部7eの側傍には、
複数(図示では2本)の固定ねじ12をねじ込む
ためのねじ孔7hが穿孔されている。 In addition, the middle part of the outer edge of the upper surface of the other platform 7c is
It slopes downward inward and has a rectangular notch,
A guide hole 7f and a screw hole 7g are bored in the inner wall of the notch 7e, and near the side of the notch 7e,
Screw holes 7h for screwing in a plurality of (two in the illustration) fixing screws 12 are bored.
この切欠部7eには、丸頭に成形された突出体
としての調整ねじ13が挿し込まれていて、この
調整ねじ13は、そのくび部13aが案内孔7f
に挿通され、かつそのねじ軸13bがねじ孔7g
に、レンズフレーム7の出射側面端に対して角度
をもつてねじ込まれている。 An adjustment screw 13 as a protruding body formed into a round head is inserted into this notch 7e, and the neck portion 13a of this adjustment screw 13 is inserted into the guide hole 7f.
is inserted into the screw hole 7g, and its screw shaft 13b is inserted into the screw hole 7g.
The lens frame 7 is screwed into the lens frame 7 at an angle to the end of the exit side surface thereof.
調整ねじ13は、このようにレンズフレーム7
の台部7cに傾斜して螺合しているので、第7図
に示すように、調整ねじ13をねじ込むことによ
り、調整ねじ13の頭の台部7c上面からの突出
寸度を下げることができ、また、ねじ戻すことに
よりその突出寸度を上げることができる。 The adjustment screw 13 is attached to the lens frame 7 in this way.
As shown in FIG. 7, by screwing in the adjusting screw 13, the protrusion of the head of the adjusting screw 13 from the upper surface of the pedestal 7c can be reduced. Also, by unscrewing it, the protrusion can be increased.
次に、固定走査素子14のソケツト15が固装
された素子基板16は、4隅の小ねじ17によつ
て方形の取付板18の左右の段部18aに固定さ
れており、かつ取付板18の中央部は、走査素子
14に対向する部分が切落されて窓孔18bが開
けられている。 Next, the element substrate 16 to which the socket 15 of the fixed scanning element 14 is fixed is fixed to the left and right steps 18a of the square mounting plate 18 by machine screws 17 at the four corners, and the mounting plate 18 A window hole 18b is formed by cutting off the central portion facing the scanning element 14.
しかして、この取付板18の左右側部には、固
定ねじ11,12の挿通孔18cが穿孔されてい
て、皿形のバネ座金19または波形のバネ座金2
0(第8図)を介して同孔18cに挿通された固
定ねじ11,12は、夫々ねじ孔7d,7hにね
じ締めされている。 Insertion holes 18c for fixing screws 11 and 12 are bored in the left and right sides of this mounting plate 18, and plate-shaped spring washers 19 or corrugated spring washers 2 are provided.
Fixing screws 11 and 12, which are inserted into the hole 18c through the screw holes 7d and 7h, are screwed into the screw holes 7d and 7h, respectively.
上記の如く構成された調整装置において、調整
ねじ13を進退させることにより、レンズフレー
ム7の上面と、走査素子14の受光側端面として
の取付板18下面との傾斜角度を自由かつ容易に
セツトすることが可能である。すなわち、先ず、
固定ねじ11,12を座金19がガタつかない範
囲でわずかに緩めた後、素子14の出力信号をチ
エツクしながら調整ねじ13を回して取付角を変
化させて行き、出力の最も良好な位置で停め、最
度に固定ねじ11,12を締め付ければ良く、こ
のようにすれば、素子14の受光部は走査結像線
に正確に合致し、かつ、調整後の状態では、調整
ねじ13は取付板18との強い摩擦で回り止めさ
れるので、振動や衝撃で調整位置がずれることが
なく、安定した調整が可能である。 In the adjusting device configured as described above, by moving the adjusting screw 13 forward and backward, the inclination angle between the upper surface of the lens frame 7 and the lower surface of the mounting plate 18 as the light-receiving end surface of the scanning element 14 can be freely and easily set. Is possible. That is, first,
After slightly loosening the fixing screws 11 and 12 to the extent that the washer 19 does not wobble, turn the adjusting screw 13 while checking the output signal of the element 14 to change the mounting angle until the position where the best output is obtained is reached. After stopping, all you have to do is tighten the fixing screws 11 and 12. In this way, the light-receiving part of the element 14 will accurately match the scanning imaging line, and in the adjusted state, the adjusting screw 13 will be Since rotation is prevented by strong friction with the mounting plate 18, the adjustment position does not shift due to vibration or impact, and stable adjustment is possible.
なお、上述構成を簡潔化する目的から、第9図
に示すように、ねじ軸21aを有する調整ねじ2
1を、台部の傾斜したねじ孔22aにねじ込んで
構造としても同様な調整が可能である。 In addition, for the purpose of simplifying the above-mentioned structure, as shown in FIG.
1 can be screwed into the inclined screw hole 22a of the base to make the same adjustment.
ここで、上述した実施例では、突出体中の1個
の突出体を突出寸度が可変な可動突出体に形成し
たが、これに換え、一方の台部上面に複数個の可
動突出体を形成すれば、より正頭な面出しが可能
となり、更には、両側台部上面の4隅中の3隅部
に可動突出体を形成すれば、2座標方向の取付角
の調整が可能になるなど、可動突出体の配設数
は、目的に対応して自由に設定し得るものであ
る。 Here, in the above-mentioned embodiment, one of the protrusions was formed as a movable protrusion whose protrusion dimension was variable, but instead of this, a plurality of movable protrusions were formed on the upper surface of one base. By forming movable protrusions at three of the four corners on the top surface of both sides, it becomes possible to adjust the mounting angle in two coordinate directions. The number of movable protrusions can be freely set depending on the purpose.
本発明によれば、レンズフレームの側面にねじ
込まれた突出部を回転させて進退させることによ
り、レンズフレームの出射側端面から突出部の突
出度、すなわち固定走査素子取付板の取付け傾き
角を極く微細に、しかも容易に調整することがで
きる。 According to the present invention, by rotating the protrusion screwed into the side surface of the lens frame and moving it forward and backward, the degree of protrusion of the protrusion from the exit side end surface of the lens frame, that is, the mounting inclination angle of the fixed scanning element mounting plate can be minimized. It can be adjusted very finely and easily.
第1図は、読取装置光学系の模式的斜視図、第
2図は、第1図の部分正面図、第3図は、本発明
の一実施例を示す走査素子の取付角調整装置の正
断面図、第4図は、第3図の平面図、第5図は、
第3図の―線における平端面図、第6図は、
第3図の部分における拡大斜視図、第7図は、
取付角調整作用の説明図、第8図は、波形バネ座
金の斜視図、第9図は、別の実施例を示す調整ね
じの正面図である。
7……レンズフレーム、8……結像レンズ、1
3,21……可動突出体としての調整ねじ、14
……固体走査素子、18……取付板。
FIG. 1 is a schematic perspective view of the optical system of the reading device, FIG. 2 is a partial front view of FIG. 1, and FIG. A sectional view, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a plan view of FIG.
The plan end view taken along the line - in Fig. 3 and Fig. 6 are as follows:
An enlarged perspective view of the part shown in FIG. 3, and FIG.
FIG. 8 is a perspective view of a wave spring washer, and FIG. 9 is a front view of an adjusting screw showing another embodiment. 7... Lens frame, 8... Imaging lens, 1
3, 21... Adjustment screw as a movable protrusion, 14
...Solid state scanning element, 18...Mounting plate.
Claims (1)
いて、走査結像光線にその受光部を臨ませた固体
走査素子により原稿画像を読み取る光学読取装置
において、 上記結像レンズを支持し該結像レンズの光軸と
直角をなす出射側端面を有するレンズフレーム
と、 上記固体走査素子を支持し、上記出射側端面に
対向していて、該出射側端面に対して傾動自在に
設けられた固体走査素子取付板と、 上記出射側端面から一部が突出していて、上記
取付板の上記レンズフレームに対向する面の一部
が当接し、上記取付板の上記対向面に対して角度
をもつて上記レンズフレームの上記出射側端面寄
りの側面に螺合した、上記レンズフレームに対し
て進退自在の突出部と からなり、上記突出部を上記レンズフレームに
対して進退させることにより上記取付板の上記出
射側端面に対する取付け傾き角を調整する固体走
査素子の取付角調整装置。[Scope of Claims] 1. An optical reading device that reads a document image using a solid-state scanning element that faces the image surface of the document through an imaging lens and has its light-receiving portion exposed to the scanning imaging beam. a lens frame that supports an image lens and has an output side end face that is perpendicular to the optical axis of the imaging lens; a solid-state scanning element mounting plate provided so as to be tiltable; a portion protruding from the output side end face; a part of the surface of the mounting plate facing the lens frame abuts; and the opposing surface of the mounting plate a protrusion that is screwed onto a side surface of the lens frame near the exit side end face at an angle with respect to the lens frame, and is movable forward and backward with respect to the lens frame, and the protrusion is moved forward and backward with respect to the lens frame. A mounting angle adjustment device for a solid-state scanning element, which adjusts a mounting angle of the mounting plate with respect to the output side end surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP978778A JPS54102821A (en) | 1978-01-30 | 1978-01-30 | Regulator for fitting angle of scanning element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP978778A JPS54102821A (en) | 1978-01-30 | 1978-01-30 | Regulator for fitting angle of scanning element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54102821A JPS54102821A (en) | 1979-08-13 |
JPS6135748B2 true JPS6135748B2 (en) | 1986-08-14 |
Family
ID=11729928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP978778A Granted JPS54102821A (en) | 1978-01-30 | 1978-01-30 | Regulator for fitting angle of scanning element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54102821A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988009440A1 (en) * | 1987-05-28 | 1988-12-01 | Yamada Yuki Seizo Co., Ltd. | Reciprocation switching structure for pumps |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5745731Y2 (en) * | 1974-06-10 | 1982-10-08 |
-
1978
- 1978-01-30 JP JP978778A patent/JPS54102821A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988009440A1 (en) * | 1987-05-28 | 1988-12-01 | Yamada Yuki Seizo Co., Ltd. | Reciprocation switching structure for pumps |
Also Published As
Publication number | Publication date |
---|---|
JPS54102821A (en) | 1979-08-13 |
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