JPH0361615U - - Google Patents
Info
- Publication number
- JPH0361615U JPH0361615U JP12138389U JP12138389U JPH0361615U JP H0361615 U JPH0361615 U JP H0361615U JP 12138389 U JP12138389 U JP 12138389U JP 12138389 U JP12138389 U JP 12138389U JP H0361615 U JPH0361615 U JP H0361615U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- laminated piezoelectric
- plane mirror
- plate
- 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.)
- Granted
Links
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図イは本考案に係わる焦点位置制御用ミラ
ーアクチユエータの一実施例を示す構成図、ロ図
はイ図の焦点位置制御用ミラーアクチユエータの
動作を説明するための構成図、第２図イは第１図
イの焦点位置制御用ミラーアクチユエータを用い
た焦点位置制御の一実施例を示す構成図、ロ図は
その動作を説明するための構成図、第３図は平面
ミラーの他の実施例を示す側面図、第４図イは従
来のレンズアクチユエータの一例を示す構成図、
ロ図はイ図のレンズアクチユエータを用いた従来
の焦点位置制御の一例を示す構成図である。
１０…焦点位置制御用ミラーアクチユエータ、
１１…平面ミラー、１２…積層圧電素子、１３…
球面状の突起部、１４…プレート、１５…ケース
、１６…固定ネジ。
FIG. 1A is a configuration diagram showing an embodiment of the mirror actuator for controlling the focal position according to the present invention, and FIG. Figure 2A is a block diagram showing an example of focus position control using the mirror actuator for focal position control in Figure 1A, Figure 2 is a block diagram for explaining its operation, and Figure 3 is A side view showing another embodiment of the plane mirror; FIG. 4A is a configuration diagram showing an example of a conventional lens actuator;
Figure B is a configuration diagram showing an example of conventional focus position control using the lens actuator shown in Figure A. 10...Mirror actuator for focal position control,
11...Plane mirror, 12...Laminated piezoelectric element, 13...
Spherical protrusion, 14... plate, 15... case, 16... fixing screw.
Claims (1)
電素子と、この積層圧電素子の他方の面に固定さ
れたプレートと、前記積層圧電素子の球面状の突
起部をその裏面中央部に接触させた平面ミラーと
、この平面ミラーの外周部をそのつば部で支持す
ると共に前記プレートとは固定ネジにより固定さ
れ前記平面ミラーと積層圧電素子とプレートとを
収納するためのケースで構成され、前記積層圧電
素子への印加電圧の制御によりその伸縮変位量を
調整し、前記平面ミラーを曲率を変えて曲面状に
変形させるようにしたことを特徴とする焦点位置
制御用ミラーアクチユエータ。 A laminated piezoelectric element having a spherical protrusion on one surface, a plate fixed to the other surface of the laminated piezoelectric element, and the spherical protrusion of the laminated piezoelectric element in contact with the center of the back surface thereof. and a case that supports the outer periphery of the plane mirror with its brim and that is fixed to the plate with a fixing screw to house the plane mirror, the laminated piezoelectric element, and the plate, A mirror actuator for focal position control, characterized in that the amount of expansion and contraction of the laminated piezoelectric element is adjusted by controlling the voltage applied to the laminated piezoelectric element, thereby changing the curvature of the plane mirror and deforming it into a curved surface shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12138389U JPH0725859Y2 (en) | 1989-10-17 | 1989-10-17 | Mirror actuator for focus position control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12138389U JPH0725859Y2 (en) | 1989-10-17 | 1989-10-17 | Mirror actuator for focus position control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0361615U true JPH0361615U (en) | 1991-06-17 |
| JPH0725859Y2 JPH0725859Y2 (en) | 1995-06-07 |
Family
ID=31669417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12138389U Expired - Lifetime JPH0725859Y2 (en) | 1989-10-17 | 1989-10-17 | Mirror actuator for focus position control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725859Y2 (en) |
-
1989
- 1989-10-17 JP JP12138389U patent/JPH0725859Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725859Y2 (en) | 1995-06-07 |