JPH0441617U - - Google Patents
Info
- Publication number
- JPH0441617U JPH0441617U JP8320290U JP8320290U JPH0441617U JP H0441617 U JPH0441617 U JP H0441617U JP 8320290 U JP8320290 U JP 8320290U JP 8320290 U JP8320290 U JP 8320290U JP H0441617 U JPH0441617 U JP H0441617U
- Authority
- JP
- Japan
- Prior art keywords
- pulse plate
- rotating pulse
- actuator
- flange
- gear
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Optical Transform (AREA)
- Focusing (AREA)
- Lens Barrels (AREA)
Description
第1図は本考案の1実施例を示す焦点レンズ駆
動系の初期状態を示す断面図、第2図は第1図に
おいて矢視A方向から見た一部省略した側面図、
第3図は焦点レンズ駆動系の繰り出し状態を示す
断面図、第4図は回転パルス板とプリント基板を
示す平面図、第5図は従来例を示す第1図と同様
な断面図、第6図は同じく従来例を示す第2図と
同様な側面図である。
2……アクチユエータ、3……第1ギヤ、3a
……鍔部、4……回転パルス板、5……第2ギヤ
、23……フオトカプラ。
FIG. 1 is a sectional view showing an initial state of a focusing lens drive system according to an embodiment of the present invention, and FIG. 2 is a partially omitted side view seen from the direction of arrow A in FIG. 1.
FIG. 3 is a sectional view showing the focusing lens drive system in its extended state, FIG. 4 is a plan view showing the rotating pulse plate and the printed circuit board, FIG. 5 is a sectional view similar to FIG. 1 showing the conventional example, and FIG. The figure is a side view similar to FIG. 2, which also shows the conventional example. 2... Actuator, 3... First gear, 3a
...Brim portion, 4...Rotating pulse plate, 5...Second gear, 23...Photocoupler.
Claims (1)
と、フオトカプラ等の光学素子とによりアクチユ
エータの回転位相を検知する装置において、前記
アクチユエータに連結された歯車列の少なくとも
1つの歯車の端面には、一部切り欠かれた拡大さ
れた鍔部が一体的に形成され、前記回転パルス板
は前記鍔部に取り付けられていることを特徴とす
る位相検出用回転パルス板保持装置。 In a device that detects the rotational phase of an actuator using a rotating pulse plate having patterns with different reflectances and an optical element such as a photocoupler, the end face of at least one gear of a gear train connected to the actuator is partially cut out. 1. A rotating pulse plate holding device for phase detection, characterized in that a missing enlarged flange is integrally formed, and the rotating pulse plate is attached to the flange.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8320290U JPH0441617U (en) | 1990-08-06 | 1990-08-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8320290U JPH0441617U (en) | 1990-08-06 | 1990-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0441617U true JPH0441617U (en) | 1992-04-08 |
Family
ID=31630670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8320290U Pending JPH0441617U (en) | 1990-08-06 | 1990-08-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0441617U (en) |
-
1990
- 1990-08-06 JP JP8320290U patent/JPH0441617U/ja active Pending