JPH0433011U - - Google Patents
Info
- Publication number
- JPH0433011U JPH0433011U JP7579890U JP7579890U JPH0433011U JP H0433011 U JPH0433011 U JP H0433011U JP 7579890 U JP7579890 U JP 7579890U JP 7579890 U JP7579890 U JP 7579890U JP H0433011 U JPH0433011 U JP H0433011U
- Authority
- JP
- Japan
- Prior art keywords
- curved surfaces
- convex curved
- polygon mirror
- convex
- shape
- 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 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Landscapes
- Mechanical Optical Scanning Systems (AREA)
Description
第１図は本考案の実施例を示す平面図、第２図
は第一の変形例を示す斜視図、第３図は第二の変
形例を示す斜視図、第４図は特開昭６３−１８８
１１２号公報に開示された第一の従来例を示す斜
視図、第５図は特開平１−１７７０１１号公報に
開示された第二の従来例を示す平面図てある。
１１，１７……ポリゴンミラー、１３，１４…
…凸曲面、１５，１８，１９……走査面。
Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a perspective view showing a first modification, Fig. 3 is a perspective view showing a second modification, and Fig. 4 is JP-A-63 -188
FIG. 5 is a perspective view showing the first conventional example disclosed in Japanese Patent Application Laid-Open No. 112-177011, and FIG. 11, 17... Polygon mirror, 13, 14...
... Convex curved surface, 15, 18, 19... Scanning surface.
Claims (1)
らなる複数の走査面が周面上に形成されたポリゴ
ンミラーにおいて、回転軸に対して軸対称位置に
配置された同形状の複数の凸曲面で形成されて互
いに凸曲面の面形状が異なる複数の曲面軍を形成
し、少なくとも一つの前記曲面群の全凸曲面を走
査面に形成したことを特徴とするポリゴンミラー
。 In a polygon mirror in which a plurality of convex curved surfaces each having a negative power in the optical scanning direction are formed on the circumferential surface, a plurality of convex curved surfaces of the same shape are arranged at axially symmetrical positions with respect to the rotation axis. A polygon mirror characterized in that a plurality of curved surfaces are formed, each having a convex curved surface having a different surface shape, and all convex curved surfaces of at least one of the curved surfaces are formed on a scanning surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7579890U JPH0433011U (en) | 1990-07-17 | 1990-07-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7579890U JPH0433011U (en) | 1990-07-17 | 1990-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0433011U true JPH0433011U (en) | 1992-03-18 |
Family
ID=31616695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7579890U Pending JPH0433011U (en) | 1990-07-17 | 1990-07-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0433011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019124924A (en) * | 2017-11-21 | 2019-07-25 | ジック アーゲー | Polygon scanner and method for detection of object in monitoring area |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234119A (en) * | 1985-08-07 | 1987-02-14 | Mitsubishi Metal Corp | Polygon mirror |
| JPH01234813A (en) * | 1988-03-16 | 1989-09-20 | Canon Inc | Image forming device |
-
1990
- 1990-07-17 JP JP7579890U patent/JPH0433011U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234119A (en) * | 1985-08-07 | 1987-02-14 | Mitsubishi Metal Corp | Polygon mirror |
| JPH01234813A (en) * | 1988-03-16 | 1989-09-20 | Canon Inc | Image forming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019124924A (en) * | 2017-11-21 | 2019-07-25 | ジック アーゲー | Polygon scanner and method for detection of object in monitoring area |