JPS63160525U - - Google Patents

Info

Publication number
JPS63160525U
JPS63160525U JP5212087U JP5212087U JPS63160525U JP S63160525 U JPS63160525 U JP S63160525U JP 5212087 U JP5212087 U JP 5212087U JP 5212087 U JP5212087 U JP 5212087U JP S63160525 U JPS63160525 U JP S63160525U
Authority
JP
Japan
Prior art keywords
scanning device
light
optical scanning
optical
polygon mirror
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.)
Granted
Application number
JP5212087U
Other languages
Japanese (ja)
Other versions
JPH0635212Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987052120U priority Critical patent/JPH0635212Y2/en
Publication of JPS63160525U publication Critical patent/JPS63160525U/ja
Application granted granted Critical
Publication of JPH0635212Y2 publication Critical patent/JPH0635212Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る一実施例の光学走査装置
の縦断面図、第２図は同光学走査装置の横断面図
、第３図は第１図における―矢視図、第４図
は従来の光学走査装置の縦断面図、第５図は同光
学走査装置の横断面図である。 １……レーザビーム発生装置、２……ｆθレン
ズ、３……窓ガラス、４……モーターカバー、５
……回転多面鏡、６……シリンドリカルミラー、
７……ドラム状感光体、８……多面鏡駆動モータ
ー、９……ガス、２０，２１……遮光板、ｂ１…
…入射レーザビーム、ｂ２，ｂ３……走査レーザ
ビーム、ｂ４〜ｂ７……反射ビーム。 FIG. 1 is a longitudinal cross-sectional view of an optical scanning device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the same optical scanning device, FIG. 3 is a view taken along the - arrow in FIG. 1, and FIG. FIG. 5 is a longitudinal cross-sectional view of a conventional optical scanning device, and FIG. 5 is a cross-sectional view of the same optical scanning device. 1... Laser beam generator, 2... fθ lens, 3... Window glass, 4... Motor cover, 5
...Rotating polygon mirror, 6...Cylindrical mirror,
7... Drum-shaped photoreceptor, 8... Polygon mirror drive motor, 9... Gas, 20, 21... Light shielding plate, b 1 ...
... incident laser beam, b 2 , b 3 ... scanning laser beam, b 4 to b 7 ... reflected beam.

Claims (1)

【実用新案登録請求の範囲】 (1) 光ビームを光軸とある角度をもつてｆθレ
ンズに入射させ、出射光を回転多面鏡で偏向した
後、再び前記ｆθレンズを通過させ、面倒れ補正
光学系を介して感光体表面に走査して露光するダ
ブルパス光学走査装置において、前記回転多面鏡
の反射面と前記面倒れ補正光学系との間にあつて
入射光及び走査光を妨げない所要位置に１個また
は複数個の遮光部材を配置したことを特徴とする
光学走査装置。 (2) 前記遮光部材の片面又は両面に反射防止処
理を施したことを特徴とする実用新案登録請求の
範囲第１項記載の光学走査装置。[Claims for Utility Model Registration] (1) A light beam is made incident on an fθ lens at a certain angle with the optical axis, and the emitted light is deflected by a rotating polygon mirror, and then passed through the fθ lens again to correct the surface tilt. In a double-pass optical scanning device that scans and exposes the surface of a photoreceptor through an optical system, a required position that is located between the reflective surface of the rotating polygon mirror and the surface tilt correction optical system and does not interfere with incident light and scanning light. 1. An optical scanning device characterized in that one or more light shielding members are disposed in the optical scanning device. (2) The optical scanning device according to claim 1, wherein one or both surfaces of the light shielding member are subjected to antireflection treatment.
JP1987052120U 1987-04-08 1987-04-08 Optical scanning device Expired - Lifetime JPH0635212Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987052120U JPH0635212Y2 (en) 1987-04-08 1987-04-08 Optical scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987052120U JPH0635212Y2 (en) 1987-04-08 1987-04-08 Optical scanning device

Publications (2)

Publication Number Publication Date
JPS63160525U true JPS63160525U (en) 1988-10-20
JPH0635212Y2 JPH0635212Y2 (en) 1994-09-14

Family

ID=30877007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987052120U Expired - Lifetime JPH0635212Y2 (en) 1987-04-08 1987-04-08 Optical scanning device

Country Status (1)

Country Link
JP (1) JPH0635212Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005004050A (en) * 2003-06-13 2005-01-06 Canon Inc Scanning type optical device
JP2005316393A (en) * 2004-03-31 2005-11-10 Canon Inc Optical element, its manufacturing method and optical appliance using the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4845448B2 (en) * 2004-08-05 2011-12-28 キヤノン株式会社 Optical scanning device
JP4500633B2 (en) 2004-09-07 2010-07-14 キヤノン株式会社 Optical scanning device and image forming apparatus using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62269925A (en) * 1986-05-19 1987-11-24 Toshiba Corp Light beam scanning optical system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62269925A (en) * 1986-05-19 1987-11-24 Toshiba Corp Light beam scanning optical system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005004050A (en) * 2003-06-13 2005-01-06 Canon Inc Scanning type optical device
JP2005316393A (en) * 2004-03-31 2005-11-10 Canon Inc Optical element, its manufacturing method and optical appliance using the same
JP4649222B2 (en) * 2004-03-31 2011-03-09 キヤノン株式会社 Manufacturing method of imaging lens

Also Published As

Publication number Publication date
JPH0635212Y2 (en) 1994-09-14

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