JPH06308409A - Light deflector - Google Patents
Light deflectorInfo
- Publication number
- JPH06308409A JPH06308409A JP5118997A JP11899793A JPH06308409A JP H06308409 A JPH06308409 A JP H06308409A JP 5118997 A JP5118997 A JP 5118997A JP 11899793 A JP11899793 A JP 11899793A JP H06308409 A JPH06308409 A JP H06308409A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- scanner motor
- optical
- polygon mirror
- optical deflector
- 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
Landscapes
- Mechanical Optical Scanning Systems (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、レーザプリンタ等にお
いてレーザ光等を高速度で偏向走査する光偏向器に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical deflector for deflecting and scanning a laser beam or the like at a high speed in a laser printer or the like.
【0002】[0002]
【従来の技術】レーザプリンタやレーザファクシミリ等
の光偏向器は、近年特に高速化が進み、これに用いられ
る回転多面鏡は毎分1万数千回転以上の高速回転を行
う。回転多面鏡をこのような高速度で回転させると、回
転中の風切音が増大し、大きな騒音を発生するため、回
転多面鏡の周囲は略円筒状のカバーで覆われている。2. Description of the Related Art Optical deflectors for laser printers, laser facsimiles and the like have been particularly accelerated in recent years, and rotary polygon mirrors used for these deflectors rotate at high speeds of 10,000 or more revolutions per minute. When the rotary polygon mirror is rotated at such a high speed, the wind noise during rotation is increased and a large noise is generated. Therefore, the periphery of the rotary polygon mirror is covered with a substantially cylindrical cover.
【0003】図5は一般的な光偏向器の全体を説明する
もので、レーザ発振器110から発生されたレーザ光L
はシリンドリカルレンズ105によって所定のビーム形
状に集光されたのち、回転多面鏡101によって偏向走
査され、結像レンズ系106を経て感光ドラム107上
に結像する。回転多面鏡101によって反射されたレー
ザ光の一部は反射ミラー108によって光ファイバ10
9に導入され、走査開始信号に変換される。FIG. 5 illustrates the general structure of a general optical deflector, which is a laser beam L generated from a laser oscillator 110.
After being condensed into a predetermined beam shape by the cylindrical lens 105, it is deflected and scanned by the rotary polygon mirror 101, and an image is formed on the photosensitive drum 107 via the imaging lens system 106. A part of the laser light reflected by the rotating polygon mirror 101 is reflected by the reflecting mirror 108 to the optical fiber 10.
9 and is converted into a scanning start signal.
【0004】図6は回転多面鏡101とその駆動部を示
すもので、回転多面鏡101の駆動部は、回転軸111
と、これに一体的に結合されたロータマグネット112
と、回転軸111を支承する軸受装置113と一体であ
るステータコイル114と、ステータコイル114に駆
動電流を供給する回路基板115を有し、回転多面鏡1
01は、波型ワッシャ116aと平型ワッシャ116b
と止め輪116cからなる押え機構116によって、回
転軸111と一体であるフランジ部材111aに押圧さ
れ、これによって回転軸111と一体化されている。回
転多面鏡101は略円筒状のカバー102によって覆わ
れており、カバー102は図示しない複数のビスによっ
て光学箱に固定されている。これによって、回転多面鏡
101の回転に伴う空気の流動を制限し、風切音の発生
を低減するとともに、風切音が外部へ洩れるのを防ぐ。
なお、カバー102の円筒部分102aにはレーザ光を
通過させる窓103が設けられている。FIG. 6 shows the rotary polygon mirror 101 and its drive unit. The drive unit of the rotary polygon mirror 101 is a rotary shaft 111.
And the rotor magnet 112 integrally connected to the
The rotary polygon mirror 1 includes a stator coil 114 that is integral with a bearing device 113 that supports the rotary shaft 111, and a circuit board 115 that supplies a drive current to the stator coil 114.
01 is a corrugated washer 116a and a flat washer 116b
A pressing mechanism 116 including a stopper ring 116c presses the flange member 111a, which is integrated with the rotating shaft 111, and thereby is integrated with the rotating shaft 111. The rotary polygon mirror 101 is covered with a substantially cylindrical cover 102, and the cover 102 is fixed to the optical box by a plurality of screws (not shown). This restricts the flow of air accompanying the rotation of the rotary polygon mirror 101, reduces the generation of wind noise, and prevents the wind noise from leaking to the outside.
It should be noted that the cylindrical portion 102a of the cover 102 is provided with a window 103 through which laser light passes.
【0005】[0005]
【発明が解決しようとする課題】従来の技術では、カバ
ーを複数のビスにより光学箱に固定するため、部品点数
および組付けのための工程数が多く、コスト高となると
ともに、ビスによる締結力はあまり大きくすることがで
きず耐久性が悪いという未解決の課題がある。In the prior art, since the cover is fixed to the optical box with a plurality of screws, the number of parts and the number of steps for assembling are large, and the cost is high, and the fastening force by the screws is high. Has an unsolved problem that it cannot be made too large and has poor durability.
【0006】本発明は、上記従来の技術の有する未解決
の課題に鑑みてなされたものであって、部品点数および
組付け工程数を削減することができる光偏向器を実現す
ることを目的とするものである。The present invention has been made in view of the above-mentioned unsolved problems of the prior art, and an object thereof is to realize an optical deflector capable of reducing the number of parts and the number of assembling steps. To do.
【0007】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明の光偏向器は、照射された照明光を偏向走査
する回転多面鏡と、前記回転多面鏡を駆動するスキャナ
モータを支持するスキャナモータ基板と、前記回転多面
鏡の外周を覆うカバーを備え、前記カバーが前記スキャ
ナモータ基板を介在させた状態で共締手段によって共締
めして光学箱に固定されたことを特徴とするものであ
る。In order to achieve the above object, the optical deflector of the present invention supports a rotary polygon mirror for deflecting and scanning the illuminated illumination light, and a scanner motor for driving the rotary polygon mirror. And a cover for covering the outer periphery of the rotary polygon mirror, and the cover is fixed together with the scanner motor substrate by an interlocking means to be fixed to the optical box. It is a thing.
【0008】また、共締手段が、光学箱に突設した複数
の係止爪でカバーを係止したものとする。Further, the co-clamping means is supposed to lock the cover with a plurality of locking claws protruding from the optical box.
【0009】さらに、共締手段が、カバーおよびスキャ
ナモータ基板に形成された複数の貫通孔と、前記貫通孔
にそれぞれ嵌挿されてその先端部が前記カバー側へ突出
する光学箱に突設されたピンと、前記ピンの先端部に嵌
合する歯付止め輪からなるものとしたり、共締手段が、
スキャナモータ基板および光学箱に形成された複数の貫
通孔と、前記貫通孔にそれぞれ嵌挿されてその先端部が
前記光学箱側へ突出するカバーに突設されたピンと、前
記ピンの先端部に嵌合する歯付止め輪からなるものとす
る。Further, the co-fastening means is provided on a plurality of through-holes formed in the cover and the scanner motor board, and an optical box which is inserted into the through-holes and has its tip end protruding toward the cover. A pin and a retaining ring with a tooth fitted to the tip of the pin, or the co-fastening means is
A plurality of through-holes formed in the scanner motor board and the optical box, pins that are respectively inserted into the through-holes and have their tip portions protruding from the cover protruding toward the optical box side, and the tip portions of the pins. It shall consist of a fitted snap ring.
【0010】加えて、共締手段が、カバーおよびスキャ
ナモータ基板に形成された複数の貫通孔と、前記貫通孔
にそれぞれ遊嵌されてその先端部が前記カバー側へ突出
する光学箱に突設されたピンと、前記貫通孔と前記ピン
の間の間隙に充填された合成樹脂からなるものとし、ま
た、前記合成樹脂を光硬化性樹脂とするとよい。In addition, the co-fastening means is provided on a plurality of through holes formed in the cover and the scanner motor board, and an optical box which is loosely fitted in the through holes and has its tip protruding toward the cover. And a synthetic resin filled in a gap between the through hole and the pin, and the synthetic resin may be a photocurable resin.
【0011】[0011]
【作用】回転多面鏡およびスキャナモータ等を支持する
スキャナモータ基板と、カバーとを共締手段により共締
めするので、部品点数および組付け工程数を削減できる
とともに、締結力を高めることができる。Since the scanner motor substrate for supporting the rotary polygon mirror and the scanner motor and the cover are fastened together by the fastening means, the number of parts and the number of assembling steps can be reduced and the fastening force can be increased.
【0012】[0012]
【実施例】本発明の実施例を図面に基いて説明する。Embodiments of the present invention will be described with reference to the drawings.
【0013】図1は第1実施例の主要部を示す部分模式
斜視図である。FIG. 1 is a partial schematic perspective view showing the main part of the first embodiment.
【0014】本実施例の光偏向器は、照射された照明光
であるレーザ光等を偏向走査する回転多面鏡1と、前記
回転多面鏡1を高速回転させる図示しないスキャナモー
タおよびその制御回路用の各種実装部品7を支持するス
キャナモータ基板5と、前記回転多面鏡1の外周を覆う
カバー2を備え、前記カバー2は、前記スキャナモータ
基板5を介在させた状態で光学箱4に突設された複数の
係止爪6でカバー2のフランジ部2bを係止するように
構成した共締手段によって、共締めして光学箱4に固定
されている。The optical deflector of this embodiment is for a rotary polygon mirror 1 for deflecting and scanning the emitted illumination light such as laser light, a scanner motor (not shown) for rotating the rotary polygon mirror 1 at high speed, and its control circuit. The scanner motor substrate 5 for supporting the various mounting components 7 and the cover 2 for covering the outer periphery of the rotary polygon mirror 1 are provided on the optical box 4 with the scanner motor substrate 5 interposed. The flange portion 2b of the cover 2 is locked by a plurality of locking claws 6 that are locked together and fixed to the optical box 4.
【0015】図2は第2実施例の主要部を示す部分模式
斜視図であって、本実施例の光偏向器は、照射された照
明光を偏向走査する回転多面鏡11と、回転多面鏡11
を高速回転させる図示しないスキャナモータおよびその
制御回路用の各種実装部品(不図示)を支持するスキャ
ナモータ基板15と、回転多面鏡11の外周を覆うカバ
ー12を備え、カバー12およびスキャナモータ基板1
5に形成された複数の貫通孔(図示せず)と、前記貫通
孔にそれぞれ嵌挿されてその先端部がカバー12側へ突
出する光学箱14に突設されたピン16と、前記ピン1
6の先端部に嵌合する歯付止め輪16aから構成された
共締手段によって、カバー12がスキャナモータ基板1
5を介在させた状態で光学箱14に対して共締めされて
いる。FIG. 2 is a partial schematic perspective view showing the main part of the second embodiment. The optical deflector of the present embodiment is a rotary polygon mirror 11 for deflecting and scanning the illuminated illumination light, and a rotary polygon mirror. 11
A scanner motor substrate 15 that supports various mounting components (not shown) for a scanner motor and a control circuit for rotating the scanner motor that rotate at high speed, and a cover 12 that covers the outer periphery of the rotary polygon mirror 11 are provided.
5, a plurality of through-holes (not shown), pins 16 projectingly provided in the optical box 14 that are fitted into the through-holes and have their tips protruding toward the cover 12, and the pin 1
The cover 12 is provided with the scanner motor board 1 by the co-fastening means composed of the toothed snap ring 16a fitted to the tip portion of 6.
It is fastened together with the optical box 14 with 5 interposed.
【0016】図3は第3実施例の主要部を示す部分模式
立面図である。FIG. 3 is a partial schematic elevational view showing a main part of the third embodiment.
【0017】本実施例の光偏向器は、照射された照明光
を偏向走査する回転多面鏡21と、回転多面鏡21を高
速回転させる図示しないスキャナモータおよびその制御
回路用の各種実装部品27を支持するスキャナモータ基
板25と、回転多面鏡21の外周を覆うカバー22を備
え、スキャナモータ基板25および光学箱24を貫通す
る複数の貫通孔(図示せず)と、前記貫通孔にそれぞれ
嵌挿されてその先端が光学箱24側へ突出するカバー2
2の下面に突設されたピン26と、前記ピン26の先端
部に嵌合する歯付止め輪26aから構成された共締手段
によって、カバー22がスキャナモータ基板25を介在
させた状態で光学箱24に対して共締めされている。The optical deflector of this embodiment comprises a rotary polygon mirror 21 for deflecting and scanning the emitted illumination light, a scanner motor (not shown) for rotating the rotary polygon mirror 21 at high speed, and various mounting components 27 for its control circuit. A scanner motor substrate 25 for supporting and a cover 22 for covering the outer periphery of the rotary polygon mirror 21 are provided, and a plurality of through holes (not shown) penetrating the scanner motor substrate 25 and the optical box 24 are inserted into the through holes, respectively. Cover 2 with its tip protruding toward the optical box 24
When the cover 22 interposes the scanner motor substrate 25, the cover 22 is optically operated by a co-fastening means composed of a pin 26 protrudingly provided on the lower surface of 2 and a toothed snap ring 26a fitted to the tip of the pin 26. It is fastened together with the box 24.
【0018】図4は第4実施例を示し、(A)は主要部
の部分模式斜視図、(B)は共締手段の部分模式断面図
である。FIG. 4 shows a fourth embodiment, (A) is a partial schematic perspective view of a main portion, and (B) is a partial schematic sectional view of a co-fastening means.
【0019】本実施例の光偏向器は、照射された照明光
を偏向走査する回転多面鏡31と、回転多面鏡31を高
速回転させる図示しないスキャナモータおよびその制御
回路用の各種実装部品(図示せず)を支持するスキャナ
モータ基板35と、回転多面鏡31の外周を覆うカバー
32を備えている。そして、スキャナモータ基板35を
貫通する複数の貫通孔である段付き孔32cおよびこれ
らと同心状にスキャナモータ基板35に設けられた貫通
孔35aと、前記貫通孔35aおよび段付き孔32cに
それぞれ遊嵌されてその先端がカバー32側へ突出する
光学箱34に突設された複数のピン36と、前記段付き
孔32および貫通孔35aと前記ピン36の間の間隙に
充填された光硬化性樹脂38から構成された共締手段に
よって、カバー32がスキャンモータ基板35を介在さ
せた状態で光学箱34に対して共締めされている。The optical deflector of this embodiment comprises a rotary polygon mirror 31 for deflecting and scanning the emitted illumination light, a scanner motor (not shown) for rotating the rotary polygon mirror 31 at high speed, and various mounting parts for its control circuit (see FIG. A scanner motor substrate 35 that supports (not shown) and a cover 32 that covers the outer periphery of the rotary polygon mirror 31 are provided. Then, a plurality of through holes 32c penetrating the scanner motor board 35 and a through hole 35a provided concentrically with the scanner motor board 35, and the through hole 35a and the stepped hole 32c are respectively provided. A plurality of pins 36 that are fitted and have their tips projecting toward the cover 32 side, and a plurality of pins 36 protruding from the optical box 34, and the stepped holes 32, the through holes 35a, and the photo-curing property filled in the gaps between the pins 36. The cover 32 is fastened to the optical box 34 with the scan motor board 35 interposed by the fastening means made of resin 38.
【0020】本実施例の光硬化性樹脂38は、段付き孔
32cおよび貫通孔35aとピン36の間の間隙に充填
後光硬化によって硬化させたものであるが、これに代え
て熱硬化性樹脂等の耐熱性をもつ合成樹脂を用いてもよ
い。The photocurable resin 38 of this embodiment is one which is cured by photocuring after being filled in the gap between the stepped hole 32c and the through hole 35a and the pin 36, but instead of this, it is thermosetting. A synthetic resin having heat resistance such as resin may be used.
【0021】[0021]
【発明の効果】本発明は上述のとおり構成されているの
で、次に記載するような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【0022】従来例に比較して部品点数および組付け工
程数を削減することができるので安価に製造することが
できるとともに、締結力を高めて耐久性を向上すること
ができる。Since the number of parts and the number of assembling steps can be reduced as compared with the conventional example, it can be manufactured at low cost and the fastening force can be increased to improve the durability.
【図1】本発明の第1実施例の主要部を示す部分模式斜
視図である。FIG. 1 is a partial schematic perspective view showing a main part of a first embodiment of the present invention.
【図2】本発明の第2実施例の主要部を示す部分模式斜
視図である。FIG. 2 is a partial schematic perspective view showing a main part of a second embodiment of the present invention.
【図3】本発明の第3実施例の主要部を示す部分模式立
面図である。FIG. 3 is a partial schematic elevational view showing a main part of a third embodiment of the present invention.
【図4】本発明の第4実施例の主要部を示し、(A)は
部分模式斜視図、(B)は共締手段の部分模式断面図で
ある。FIG. 4 shows a main part of a fourth embodiment of the present invention, (A) is a partial schematic perspective view, and (B) is a partial schematic cross-sectional view of a co-fastening means.
【図5】従来の光偏向器の全体を説明する説明図であ
る。FIG. 5 is an explanatory diagram illustrating the entire conventional optical deflector.
【図6】従来の光偏向器の主要部の部分模式断面図であ
る。FIG. 6 is a partial schematic cross-sectional view of a main part of a conventional optical deflector.
1,11,21,31 回転多面鏡 2,12,22,32 カバー 2a,12a,22a,32a 円筒壁 2b,12b,32b フランジ部 3,13,23,33 開口部 4,14,24,34 光学箱 5,15,25,35 スキャナモータ基板 6 係止爪 7,27 実装部品 16,26,36 ピン 16a,26a 歯付止め輪 32c 段付き孔 35a 貫通孔 1, 11, 21, 31 Rotating polygon mirror 2, 12, 22, 32 Cover 2a, 12a, 22a, 32a Cylindrical wall 2b, 12b, 32b Flange part 3, 13, 23, 33 Opening part 4, 14, 24, 34 Optical box 5,15,25,35 Scanner motor board 6 Locking claw 7,27 Mounting component 16,26,36 Pin 16a, 26a Toothed snap ring 32c Stepped hole 35a Through hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 蕗田 卓 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 (72)発明者 鍋田 昇 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 (72)発明者 宮本 英幸 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Taku Butada 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Noboru Nabeda 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Hideyuki Miyamoto 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.
Claims (6)
面鏡と、前記回転多面鏡を駆動するスキャナモータを支
持するスキャナモータ基板と、前記回転多面鏡の外周を
覆うカバーを備え、前記カバーが前記スキャナモータ基
板を介在させた状態で共締手段によって共締めして光学
箱に固定されたことを特徴とする光偏向器。1. A rotary polygon mirror that deflects and scans the emitted illumination light, a scanner motor substrate that supports a scanner motor that drives the rotary polygon mirror, and a cover that covers the outer periphery of the rotary polygon mirror. The optical deflector is fixed to the optical box by being fastened together by the fastening means with the scanner motor substrate interposed.
止爪でカバーを係止したものであることを特徴とする請
求項1記載の光偏向器。2. The optical deflector according to claim 1, wherein the co-fastening means is one in which the cover is locked by a plurality of locking claws protruding from the optical box.
タ基板に形成された複数の貫通孔と、前記貫通孔にそれ
ぞれ嵌挿されてその先端部が前記カバー側へ突出する光
学箱に突設されたピンと、前記ピンの先端部に嵌合する
歯付止め輪からなることを特徴とする請求項1記載の光
偏向器。3. The co-fastening means is provided in a plurality of through-holes formed in the cover and the scanner motor board, and an optical box that is fitted into the through-holes and has its tip end protruding toward the cover. The optical deflector according to claim 1, wherein the optical deflector comprises a pin and a retaining ring with a tooth fitted to a tip portion of the pin.
光学箱に形成された複数の貫通孔と、前記貫通孔にそれ
ぞれ嵌挿されてその先端部が前記光学箱側へ突出するカ
バーに突設されたピンと、前記ピンの先端部に嵌合する
歯付止め輪からなることを特徴とする請求項1記載の光
偏向器。4. The co-fastening means is provided with a plurality of through-holes formed in the scanner motor substrate and the optical box, and a cover which is inserted into the through-holes and has its front end protruding toward the optical box. The optical deflector according to claim 1, wherein the optical deflector comprises a pin and a retaining ring fitted to the tip of the pin.
タ基板に形成された複数の貫通孔と、前記貫通孔にそれ
ぞれ遊嵌されてその先端部が前記カバー側へ突出する光
学箱に突設されたピンと、前記貫通孔と前記ピンの間の
間隙に充填された合成樹脂からなることを特徴とする請
求項1記載の光偏向器。5. The co-fastening means is provided on a plurality of through-holes formed in the cover and the scanner motor board, and an optical box which is loosely fitted in the through-holes and has its front end protruding toward the cover. The optical deflector according to claim 1, wherein the optical deflector comprises a pin and a synthetic resin filled in a gap between the through hole and the pin.
徴とする請求項5記載の光偏向器。6. The optical deflector according to claim 5, wherein the synthetic resin is a photocurable resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5118997A JPH06308409A (en) | 1993-04-22 | 1993-04-22 | Light deflector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5118997A JPH06308409A (en) | 1993-04-22 | 1993-04-22 | Light deflector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06308409A true JPH06308409A (en) | 1994-11-04 |
Family
ID=14750450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5118997A Pending JPH06308409A (en) | 1993-04-22 | 1993-04-22 | Light deflector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06308409A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000305035A (en) * | 1999-02-18 | 2000-11-02 | Ricoh Co Ltd | Scanning optical device |
KR20020033922A (en) * | 2000-10-31 | 2002-05-08 | 김춘호 | Method for fabricating a display module for use in a virtual reality display system |
-
1993
- 1993-04-22 JP JP5118997A patent/JPH06308409A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000305035A (en) * | 1999-02-18 | 2000-11-02 | Ricoh Co Ltd | Scanning optical device |
KR20020033922A (en) * | 2000-10-31 | 2002-05-08 | 김춘호 | Method for fabricating a display module for use in a virtual reality display system |
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