JPS6345524U - - Google Patents
Info
- Publication number
- JPS6345524U JPS6345524U JP13938686U JP13938686U JPS6345524U JP S6345524 U JPS6345524 U JP S6345524U JP 13938686 U JP13938686 U JP 13938686U JP 13938686 U JP13938686 U JP 13938686U JP S6345524 U JPS6345524 U JP S6345524U
- Authority
- JP
- Japan
- Prior art keywords
- rotating polygon
- polygon mirror
- light
- light receiving
- 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.)
- Pending
Links
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Radiation Pyrometers (AREA)
Description
第１図はこの考案の一実施例による回転多面鏡
のモニタ装置を用いて回転多面鏡の回転状態をモ
ニタしている状況を示す斜視説明図、第２図ａ，
ｂは第１図における回転多面鏡のモニタ装置の受
光部上を、回転多面鏡における各鏡面のうちの略
中間の傾きを有する鏡面で反射された光スポツト
および各鏡面で反射された光スポツトが移動する
状況を示す各々正面図、第３図は従来提案されて
いた回転多面鏡のモニタ装置により回転多面鏡の
回転状態をモニタしている状況を示す斜視説明図
、第４図は第３図における回転多面鏡のモニタ装
置の受光部上を、回転多面鏡の各鏡面で反射され
た光スポツトが夫々移動する状況を示す正面図で
ある。
１……回転多面鏡、３……光源、５……受光部
、５ａ，５ｂ，５ｃ，５ｄ……フオトダイオード
（受光素子）、６……一方の軸、７……他方の軸
、８……信号処理装置、９……入射光、１０……
反射光。
FIG. 1 is a perspective explanatory view showing a situation in which the rotational state of a rotating polygon mirror is monitored using a rotating polygon mirror monitoring device according to an embodiment of the present invention; FIG.
b shows a light spot reflected by a mirror surface having an approximately intermediate inclination among the mirror surfaces of the rotating polygon mirror and a light spot reflected by each mirror surface on the light receiving part of the rotating polygon mirror monitor device in FIG. 3 is a front view showing a moving situation, FIG. 3 is a perspective explanatory view showing a situation where the rotating state of a rotating polygon mirror is monitored by a conventionally proposed monitoring device for a rotating polygon mirror, and FIG. FIG. 6 is a front view showing a situation in which light spots reflected by each mirror surface of the rotating polygon mirror move on the light receiving section of the rotating polygon mirror monitor device in FIG. DESCRIPTION OF SYMBOLS 1... Rotating polygon mirror, 3... Light source, 5... Light receiving part, 5a, 5b, 5c, 5d... Photodiode (light receiving element), 6... One axis, 7... Other axis, 8... ...Signal processing device, 9...Incoming light, 10...
reflected light.
Claims (1)
入射光を照射する光源と、前記回転多面鏡からの
反射光を受光して電流を出力する受光素子を互い
に直交する一方の軸と他方の軸とで分割した４象
限領域に各々配設してなる受光部と、当該受光部
からの出力電流により前記回転多面鏡の回転状態
を判定する信号処理装置とを備え、前記回転多面
鏡における各鏡面のうちの一つの鏡面による反射
光が、前記受光部の一方の軸上を移動するように
当該受光部の位置を設定したことを特徴とする回
転多面鏡のモニタ装置。 A light source that irradiates incident light onto a rotating polygon mirror having a plurality of mirror surfaces with different inclinations, and a light receiving element that receives reflected light from the rotating polygon mirror and outputs a current, are arranged on one axis and the other axis orthogonal to each other. and a signal processing device that determines the rotational state of the rotating polygon mirror based on the output current from the light receiving unit, each of the mirror surfaces of the rotating polygon mirror A monitoring device for a rotating polygon mirror, characterized in that the position of the light receiving section is set so that the light reflected by one of the mirror surfaces moves on one axis of the light receiving section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13938686U JPS6345524U (en) | 1986-09-12 | 1986-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13938686U JPS6345524U (en) | 1986-09-12 | 1986-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6345524U true JPS6345524U (en) | 1988-03-28 |
Family
ID=31045243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13938686U Pending JPS6345524U (en) | 1986-09-12 | 1986-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6345524U (en) |
-
1986
- 1986-09-12 JP JP13938686U patent/JPS6345524U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0110231A3 (en) | Device for focusing and blending a laser beam | |
| JPS62184522U (en) | ||
| JPS62135116U (en) | ||
| JPH01142918U (en) | ||
| JPH0120641Y2 (en) | ||
| JPH0479261U (en) | ||
| JPH0236143U (en) | ||
| JPS63129808U (en) | ||
| JPS61109420U (en) | ||
| JPS6341933U (en) | ||
| JPH0272414U (en) | ||
| JPS6287310U (en) | ||
| JPS61109421U (en) | ||
| JPS6443295U (en) | ||
| JPH0314769U (en) | ||
| JPH02113716U (en) | ||
| JPS63195616U (en) | ||
| JPS6398516U (en) | ||
| JPH01152429U (en) | ||
| JPH0160895U (en) | ||
| JPS63105007U (en) | ||
| JPS6365016U (en) | ||
| JPS6324644U (en) | ||
| JPH0257024U (en) | ||
| JPS63142729U (en) |