JPS6413114A - Optical scanner - Google Patents
Optical scannerInfo
- Publication number
- JPS6413114A JPS6413114A JP16825887A JP16825887A JPS6413114A JP S6413114 A JPS6413114 A JP S6413114A JP 16825887 A JP16825887 A JP 16825887A JP 16825887 A JP16825887 A JP 16825887A JP S6413114 A JPS6413114 A JP S6413114A
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- reflecting
- incident
- scanning
- face
- 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
Abstract
PURPOSE:To obtain an inexpensive optical scanner free of producing dust and having a high scanning frequency by providing a reflecting mirror with a reflecting face perpendicular to the scanning direction of light beams in a scanning area between a rotating mirror and said area. CONSTITUTION:A polygon mirror 1 is rotated about a rotating axis 3, and the reflected light beam 4 of an incident light beam 2 is polarized in the direction of a reflected light beam 41 and moves on a face to be scanned or a space 5. A reflecting plate 7 perpendicular to the scanning direction shown by an arrow in the scanning area 6 is provided in the spatial area outside by a scanning angle phi, and between the polygon mirror 1 and the face to be scanned or the space 5. When the polygon mirror 1 rotates to make the incident light beam 2 incident on a next reflecting face 11', said beam makes incident on the reflecting mirror 7, is reflected thereon and goes toward a chain line 42. When the polygon mirror 1 further rotates, the incident angle etaof the light beam making incident on the reflecting plate 7 from the reflecting face 11' becomes lower; therefore the light beam reflected from the reflecting plate 7 is polarized in the direction of a chain line with two dots 43. Thus the inexpensive optical scanner having a high scanning frequency and free of producing dust can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16825887A JPS6413114A (en) | 1987-07-06 | 1987-07-06 | Optical scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16825887A JPS6413114A (en) | 1987-07-06 | 1987-07-06 | Optical scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6413114A true JPS6413114A (en) | 1989-01-18 |
Family
ID=15864674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16825887A Pending JPS6413114A (en) | 1987-07-06 | 1987-07-06 | Optical scanner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6413114A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03165242A (en) * | 1989-11-24 | 1991-07-17 | Nippon Steel Corp | Surface inspecting device for thin steel sheet |
| WO2005057269A1 (en) * | 2003-12-10 | 2005-06-23 | Matsushita Electric Industrial Co., Ltd. | Display unit and scanning method therefor |
| DE102009021764A1 (en) * | 2009-05-18 | 2010-12-02 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Laser scanner i.e. three dimensional laser scanner, for use in three dimensional area to detect distance of object i.e. unpilot aerial vehicle, to another object, has mirror arranged such that laser rays are reflected in scanning areas |
| JP2015148544A (en) * | 2014-02-07 | 2015-08-20 | 三菱電機株式会社 | laser radar device |
-
1987
- 1987-07-06 JP JP16825887A patent/JPS6413114A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03165242A (en) * | 1989-11-24 | 1991-07-17 | Nippon Steel Corp | Surface inspecting device for thin steel sheet |
| WO2005057269A1 (en) * | 2003-12-10 | 2005-06-23 | Matsushita Electric Industrial Co., Ltd. | Display unit and scanning method therefor |
| US7593151B2 (en) | 2003-12-10 | 2009-09-22 | Panasonic Corporation | Display unit and scanning method therefor |
| DE102009021764A1 (en) * | 2009-05-18 | 2010-12-02 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Laser scanner i.e. three dimensional laser scanner, for use in three dimensional area to detect distance of object i.e. unpilot aerial vehicle, to another object, has mirror arranged such that laser rays are reflected in scanning areas |
| JP2015148544A (en) * | 2014-02-07 | 2015-08-20 | 三菱電機株式会社 | laser radar device |
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