JPH01128319U - - Google Patents
Info
- Publication number
- JPH01128319U JPH01128319U JP2403988U JP2403988U JPH01128319U JP H01128319 U JPH01128319 U JP H01128319U JP 2403988 U JP2403988 U JP 2403988U JP 2403988 U JP2403988 U JP 2403988U JP H01128319 U JPH01128319 U JP H01128319U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- optical device
- scanning optical
- light beam
- housing
- 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 9
- 108091008695 photoreceptors Proteins 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
第１図は本考案の一実施例である走査光学装置
２１を用いたレーザプリンタ３１の基本的な構成
を示す断面図、第２図は走査光学装置２１の断面
図、第３図は走査光学装置２１の回転反射鏡２４
の軸線２４ｂに垂直な平面における断面図、第４
図はｆθレンズ２５のハウジング２２に対する取
付構造を説明するための分解斜視図、第５図は典
型的な先行技術の走査光学装置４を用いたレーザ
プリンタ１の基本的な構成を示す断面図である。
２１……走査光学装置、２２……ハウジング、
２４……回転反射鏡、２５……ｆθレンズ、２６
……反射鏡、２７……感光体、３１……レーザプ
リンタ、５１……第１ｆθレンズ部分、５２……
第２ｆθレンズ部分、５１ｂ，５２ｂ……フレー
ム、６０……端面、６１……開口、７１……光源
、８１，８２……ばね部材。
FIG. 1 is a sectional view showing the basic configuration of a laser printer 31 using a scanning optical device 21 which is an embodiment of the present invention, FIG. 2 is a sectional view of the scanning optical device 21, and FIG. 3 is a sectional view of the scanning optical device 21. Rotating reflector 24 of device 21
A cross-sectional view in a plane perpendicular to the axis 24b of the fourth
The figure is an exploded perspective view for explaining the attachment structure of the fθ lens 25 to the housing 22, and FIG. 5 is a sectional view showing the basic configuration of the laser printer 1 using a typical prior art scanning optical device 4. be. 21... Scanning optical device, 22... Housing,
24...Rotating reflector, 25...fθ lens, 26
...Reflector, 27... Photoreceptor, 31... Laser printer, 51... First fθ lens portion, 52...
2nd fθ lens portion, 51b, 52b... frame, 60... end face, 61... aperture, 71... light source, 81, 82... spring member.
補正 昭６３．４．２
実用新案登録請求の範囲を次のように補正する
。Amendment April 2, 1983 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
光源と、光源からの光ビームを反射して被走査
媒体を走査する回転反射鏡と、回転反射鏡からの
光ビームが導かれるｆθレンズとをハウジングの
密閉空間に収納する走査光学装置において、
ハウジングはｆθレンズからの光ビームが通る
ための開口を有し、この開口の周縁付近にｆθレ
ンズを密着して取付けることを特徴とする走査光
学装置。[Claims for Utility Model Registration] A light source, a rotating reflector that reflects the light beam from the light source to scan a scanned medium, and an fθ lens to which the light beam from the rotating reflector is guided are placed in a closed space of a housing. What is claimed is: 1. A scanning optical device housed in a scanning optical device, characterized in that the housing has an opening through which a light beam from an fθ lens passes, and the fθ lens is closely attached near the periphery of the opening.
Claims (1)
媒体を走査する回転反射鏡と、回転反射鏡からの
光ビームが導かれるｆθレンズとをハウジングの
密閉空間に収納する走査光学装置において、 ハウジングはｆθレンズからの光ビームが通る
ための開口を有し、この開口の周縁付近にｆθレ
ンズをばね部材で押し付けて取付けることを特徴
とする走査光学装置。[Claims for Utility Model Registration] A light source, a rotating reflector that reflects the light beam from the light source to scan a scanned medium, and an fθ lens to which the light beam from the rotating reflector is guided are placed in a closed space of a housing. What is claimed is: 1. A scanning optical device housed in a scanning optical device, characterized in that the housing has an opening through which a light beam from the fθ lens passes, and the fθ lens is pressed against and mounted near the periphery of the opening by a spring member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2403988U JPH01128319U (en) | 1988-02-24 | 1988-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2403988U JPH01128319U (en) | 1988-02-24 | 1988-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01128319U true JPH01128319U (en) | 1989-09-01 |
Family
ID=31243544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2403988U Pending JPH01128319U (en) | 1988-02-24 | 1988-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01128319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002258201A (en) * | 2001-03-02 | 2002-09-11 | Canon Inc | Light deflecting scanner |
| JP2002372658A (en) * | 2001-06-15 | 2002-12-26 | Ricoh Co Ltd | Objective lens and method for attaching it |
-
1988
- 1988-02-24 JP JP2403988U patent/JPH01128319U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002258201A (en) * | 2001-03-02 | 2002-09-11 | Canon Inc | Light deflecting scanner |
| JP2002372658A (en) * | 2001-06-15 | 2002-12-26 | Ricoh Co Ltd | Objective lens and method for attaching it |