JPS6329715U - - Google Patents
Info
- Publication number
- JPS6329715U JPS6329715U JP12181586U JP12181586U JPS6329715U JP S6329715 U JPS6329715 U JP S6329715U JP 12181586 U JP12181586 U JP 12181586U JP 12181586 U JP12181586 U JP 12181586U JP S6329715 U JPS6329715 U JP S6329715U
- Authority
- JP
- Japan
- Prior art keywords
- light
- width
- emitting element
- rotation angle
- shielding part
- 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
- Optical Transform (AREA)
Description
第１図はこの考案の一実施例を示す断面図、第
２図および第３図は従来の問題点を説明するため
の各説明図である。
１１……レンズ、１３……フオトダイオードア
レイ（受光素子）、１３Ａ……受光部、１４……
スリツト板、１５……スリツト部、１６……遮光
部、Ｘ……遮光部の幅。
FIG. 1 is a cross-sectional view showing one embodiment of this invention, and FIGS. 2 and 3 are explanatory views for explaining the problems of the prior art. 11... Lens, 13... Photo diode array (light receiving element), 13A... Light receiving section, 14...
Slit plate, 15...slit part, 16...light shielding part, X...width of the light shielding part.
Claims (1)
れ複数個連設された受光部を有する受光素子と、
該受光素子と前記発光素子との間に介設されると
ともに回転部材に装着された、スリツト部と遮光
部とを有するスリツト板と、を有し、回転部材の
回転角を光学的に検出する回転角検出器において
、前記遮光部による光の影となる部分の幅が前記
受光部の１つの幅以上となるように、前記遮光部
の幅を所定値以上に設定したことを特徴とする回
転角検出器。 (2) 前記遮光部の幅をＸ、発光素子から受光素
子までの距離をＬ、スリツト板から受光素子まで
の距離を１、発光素子の口径をＷ、および受光部
の１つの幅をａとしたとき、Ｘを｛ｌ（Ｗ−ａ）
／Ｌ＋ａ｝以上となるように設定したことを特徴
とする前記実用新案登録請求の範囲第１項記載の
回転角検出器。[Claims for Utility Model Registration] (1) A light-emitting element, a light-receiving element having a plurality of light-receiving sections disposed facing the light-emitting element and arranged in series;
A slit plate having a slit portion and a light shielding portion is interposed between the light receiving element and the light emitting element and is attached to the rotating member, and optically detects the rotation angle of the rotating member. In the rotation angle detector, the width of the light shielding part is set to a predetermined value or more so that the width of the part shaded by the light by the light shielding part is equal to or more than the width of one of the light receiving parts. Angle detector. (2) The width of the light shielding part is X, the distance from the light emitting element to the light receiving element is L, the distance from the slit plate to the light receiving element is 1, the aperture of the light emitting element is W, and the width of one of the light receiving parts is a. Then, let X be {l(W-a)
/L+a} or more. The rotation angle detector according to claim 1 of the utility model registration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12181586U JPS6329715U (en) | 1986-08-08 | 1986-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12181586U JPS6329715U (en) | 1986-08-08 | 1986-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6329715U true JPS6329715U (en) | 1988-02-26 |
Family
ID=31011432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12181586U Pending JPS6329715U (en) | 1986-08-08 | 1986-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6329715U (en) |
-
1986
- 1986-08-08 JP JP12181586U patent/JPS6329715U/ja active Pending