JPH01101218U - - Google Patents
Info
- Publication number
- JPH01101218U JPH01101218U JP19898287U JP19898287U JPH01101218U JP H01101218 U JPH01101218 U JP H01101218U JP 19898287 U JP19898287 U JP 19898287U JP 19898287 U JP19898287 U JP 19898287U JP H01101218 U JPH01101218 U JP H01101218U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- imaging optical
- images
- light beam
- attitude
- 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 12
- 238000003384 imaging method Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 4
- 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
Landscapes
- Lens Barrels (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
第１図は本考案の光走査装置の要部を示すｆθ
レンズホルダの正面図、第２図は第１図の分解図
、第３図はシリンドリカルレンズホルダの説明図
、第４図は本考案の光走査装置の基本構成要領を
示す説明図、第５図イ，ロは最小スポツト径とレ
ンズの回転角との関係を示す図、第６図は従来の
光走査装置の走査光学系の一例を示す概要図、第
７図は第６図の平面図、第８図は第７図を直線的
にモデル化した図である。
１……光源、２……シリンドリカルレンズ、３
……偏向器、８……被走査媒体、９……ｆθレン
ズ、１０，１１……レンズ、１２……シリンドリ
カルレンズホルダ、１３……ｆθレンズホルダ、
１６，１７……長孔、１８……ガイドピン、２１
……回転支点部、２２，２３……台座、２４……
止め板、２５……板バネ、２６……調整ねじ。
Figure 1 shows the main parts of the optical scanning device of the present invention.
A front view of the lens holder, FIG. 2 is an exploded view of FIG. 1, FIG. 3 is an explanatory diagram of the cylindrical lens holder, FIG. 4 is an explanatory diagram showing the basic configuration of the optical scanning device of the present invention, and FIG. 5 A and B are diagrams showing the relationship between the minimum spot diameter and the rotation angle of the lens, FIG. 6 is a schematic diagram showing an example of a scanning optical system of a conventional optical scanning device, and FIG. 7 is a plan view of FIG. 6. FIG. 8 is a linear model of FIG. 7. 1...Light source, 2...Cylindrical lens, 3
...Deflector, 8...Scanned medium, 9...Fθ lens, 10, 11...Lens, 12...Cylindrical lens holder, 13...Fθ lens holder,
16, 17...Long hole, 18...Guide pin, 21
... Rotating fulcrum part, 22, 23 ... Pedestal, 24 ...
Stop plate, 25...plate spring, 26...adjustment screw.
Claims (1)
像する第１結像光学系と、該第１結像光学系から
の光束を偏向器で偏向させた後に被走査媒体上に
結像・走査する第２結像光学系とを有し、且つ上
記第２結像光学系に、主走査方向と副走査方向と
の屈折力の異なるレンズを備えた光走査装置にお
いて、上記第１結像光学系に光軸方向のみの移動
調整装置を設け、第２結像光学系に、上記いずれ
かのレンズの姿勢を調整するための姿勢調整装置
を具備してなることを特徴とする光走査装置。 a first imaging optical system that images the parallel light beam projected from the light source device in one direction; and a deflector that deflects the light beam from the first imaging optical system, and then images and scans it onto the scanned medium. In the optical scanning device, the second imaging optical system includes a lens having different refractive powers in the main scanning direction and the sub-scanning direction, wherein the first imaging optical system An optical scanning device characterized in that the system is provided with a movement adjustment device only in the optical axis direction, and the second imaging optical system is equipped with an attitude adjustment device for adjusting the attitude of any one of the lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19898287U JPH01101218U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19898287U JPH01101218U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01101218U true JPH01101218U (en) | 1989-07-07 |
Family
ID=31489457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19898287U Pending JPH01101218U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01101218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005099819A (en) * | 2004-10-18 | 2005-04-14 | Ricoh Co Ltd | Optical scanner |
| JP2005258450A (en) * | 2005-03-22 | 2005-09-22 | Ricoh Co Ltd | Optical scanner and image forming apparatus |
-
1987
- 1987-12-25 JP JP19898287U patent/JPH01101218U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005099819A (en) * | 2004-10-18 | 2005-04-14 | Ricoh Co Ltd | Optical scanner |
| JP2005258450A (en) * | 2005-03-22 | 2005-09-22 | Ricoh Co Ltd | Optical scanner and image forming apparatus |
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