JPH0320314U - - Google Patents
Info
- Publication number
- JPH0320314U JPH0320314U JP8133689U JP8133689U JPH0320314U JP H0320314 U JPH0320314 U JP H0320314U JP 8133689 U JP8133689 U JP 8133689U JP 8133689 U JP8133689 U JP 8133689U JP H0320314 U JPH0320314 U JP H0320314U
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- sectional area
- scanned
- scanning
- transparent rod
- 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 4
- 230000007423 decrease Effects 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Fax Reproducing Arrangements (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
第１図は、本考案に係る光ビーム走査装置を適
用した画像記録装置の一実施例の斜視図である。
第２図は、第１図に示す画像記録装置に用いられ
るレーザユニツトの一実施例の断面図である。第
３図は、本考案に係る光ビーム走査装置に用いら
れる集光ロツドおよび従来の集光ロツドの長手方
向の集光効率を示すグラフである。第４図は、本
考案の光ビーム走査装置の別の実施例の斜視図で
ある。第５図は、従来の光ビーム走査装置の斜視
図である。
符号の説明、１０……画像記録装置、１２……
記録用レーザ、１２ａ……走査用光ビーム、１４
……グリツド用レーザ、１４ａ……同期用光ビー
ム、１６……レーザユニツト、１８……ガルバノ
メータミラー、２０……ｆθレンズ、２２……露
光ドラム、２４，２６……ニツプローラ、２８…
…ミラー、３０……グリツド、３２……集光ロツ
ド、３２ａ……拡散帯、３４……全反射ミラー、
３６……光検出器、３８……同期信号発生装置、
４０……円筒状ハウジング、４２……隔壁、４２
ａ，４２ｂ……開口、４４……コリメータレンズ
。
FIG. 1 is a perspective view of an embodiment of an image recording apparatus to which a light beam scanning device according to the present invention is applied.
FIG. 2 is a sectional view of one embodiment of a laser unit used in the image recording apparatus shown in FIG. FIG. 3 is a graph showing the light focusing efficiency in the longitudinal direction of the focusing rod used in the optical beam scanning device according to the present invention and the conventional focusing rod. FIG. 4 is a perspective view of another embodiment of the optical beam scanning device of the present invention. FIG. 5 is a perspective view of a conventional light beam scanning device. Explanation of symbols, 10... Image recording device, 12...
Recording laser, 12a...Scanning light beam, 14
. . . Grid laser, 14a .
... Mirror, 30 ... Grid, 32 ... Condensing rod, 32a ... Diffusion band, 34 ... Total reflection mirror,
36...Photodetector, 38...Synchronization signal generator,
40... Cylindrical housing, 42... Partition wall, 42
a, 42b...Aperture, 44...Collimator lens.
Claims (1)
より被走査体を走査するとともに、前記光偏向器
により偏向された同期用光ビームを格子に入射し
、該格子を通過した前記同期用光ビームを透明ロ
ツドにより集光し、光検出器で検出することによ
り、前記被走査体上の走査用光ビームの走査方向
の位置検出を行なう光ビーム走査装置において、 前記透明ロツドを格子に沿う長手方向にその断
面積が漸増または漸減するテーパー形状とし、前
記透明ロツドの両端面のうち前記断面積の小さい
側に全反射ミラーを配置し、前記断面積の大きい
側に光検出器を配設したことを特徴とする光ビー
ム走査装置。[Claims for Utility Model Registration] A scanned object is scanned by a scanning light beam deflected by an optical deflector, and a synchronization light beam deflected by the optical deflector is incident on a grating. In the light beam scanning device, the position of the scanning light beam on the object to be scanned in the scanning direction is detected by condensing the synchronization light beam that has passed through a transparent rod and detecting the same with a photodetector. The transparent rod has a tapered shape whose cross-sectional area gradually increases or decreases in the longitudinal direction along the grating, and a total reflection mirror is arranged on the side with the smaller cross-sectional area among both end faces of the transparent rod, and on the side with the larger cross-sectional area. A light beam scanning device characterized by being equipped with a photodetector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8133689U JPH0320314U (en) | 1989-07-11 | 1989-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8133689U JPH0320314U (en) | 1989-07-11 | 1989-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0320314U true JPH0320314U (en) | 1991-02-27 |
Family
ID=31627190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8133689U Pending JPH0320314U (en) | 1989-07-11 | 1989-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0320314U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010967A (en) * | 1983-06-30 | 1985-01-21 | Fujitsu Ltd | Detecting system of scanning position |
| JPS62299171A (en) * | 1986-06-18 | 1987-12-26 | Fuji Photo Film Co Ltd | Light beam scanning device |
-
1989
- 1989-07-11 JP JP8133689U patent/JPH0320314U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010967A (en) * | 1983-06-30 | 1985-01-21 | Fujitsu Ltd | Detecting system of scanning position |
| JPS62299171A (en) * | 1986-06-18 | 1987-12-26 | Fuji Photo Film Co Ltd | Light beam scanning device |
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