JPH0332722U - - Google Patents
Info
- Publication number
- JPH0332722U JPH0332722U JP8984789U JP8984789U JPH0332722U JP H0332722 U JPH0332722 U JP H0332722U JP 8984789 U JP8984789 U JP 8984789U JP 8984789 U JP8984789 U JP 8984789U JP H0332722 U JPH0332722 U JP H0332722U
- Authority
- JP
- Japan
- Prior art keywords
- drive means
- piezoelectric drive
- piezoelectric
- focus actuator
- connecting member
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案のフオーカスアクチユエータの
第１の実施例の斜視図である。第２図は本考案の
フオーカスアクチユエータの第１の実施例の断面
図である。第３図はバイモルフの拡大断面図であ
る。第４図は本考案フオーカスアクチユエータの
の第１の実施例の要部拡大断面図である。第５図
は本考案のフオーカスアクチユエータの第２の実
施例の要部拡大断面図である。第６図は本考案の
フオーカスアクチユエータの第３の実施例の要部
拡大断面図である。第７図は従来のアクチユエー
タの斜視図である。第８図は従来のバイモルフの
拡大側面図である。
１……対物レンズ、２……対物レンズ保持体、
３……第１の圧電駆動手段、４，５……バイモル
フ、４ａ，４ｂ……圧電素子からなる板、６……
固定部材、７，８……第１の連結部材、７ａ，８
ａ……中央電極、９……支持部材、１０……第２
の圧電駆動手段、１１，１２……バイモルフ、１
３，１４……第２の連結部材、１５ａ，１５ｂ…
…外部電極、１６，１７，１８，１９……積層形
圧電アクチユエータ、２０，２１，２２，２３…
…連結部材、２０ａ，２１ａ……湾曲部、２２ａ
，２３ａ……薄肉部。
FIG. 1 is a perspective view of a first embodiment of the focus actuator of the present invention. FIG. 2 is a sectional view of the first embodiment of the focus actuator of the present invention. FIG. 3 is an enlarged cross-sectional view of the bimorph. FIG. 4 is an enlarged sectional view of a main part of the first embodiment of the focus actuator of the present invention. FIG. 5 is an enlarged sectional view of a main part of a second embodiment of the focus actuator of the present invention. FIG. 6 is an enlarged sectional view of a main part of a third embodiment of the focus actuator of the present invention. FIG. 7 is a perspective view of a conventional actuator. FIG. 8 is an enlarged side view of a conventional bimorph. 1...Objective lens, 2...Objective lens holder,
3...First piezoelectric drive means, 4, 5...Bimorph, 4a, 4b...Plate made of piezoelectric elements, 6...
Fixed member, 7, 8...First connecting member, 7a, 8
a...Central electrode, 9...Supporting member, 10...Second
piezoelectric drive means, 11, 12...bimorph, 1
3, 14... second connecting member, 15a, 15b...
...External electrode, 16, 17, 18, 19... Laminated piezoelectric actuator, 20, 21, 22, 23...
...Connection member, 20a, 21a...Curved portion, 22a
, 23a... Thin wall portion.
Claims (1)
圧電駆動手段と第２の圧電駆動手段とを備え、 前記第１の圧電駆動手段に屈曲可能な連結部材
と支持部材を介して前記第２の圧電駆動手段を取
り付け、該第２の圧電駆動部材に対物レンズ保持
体を取り付けたフオーカスアクチユエータ。 ２ 前記屈曲可能な連結部材を圧電板の電極で構
成した実用新案登録請求の範囲第１項記載のフオ
ーカスアクチユエータ。 ３ 前記屈曲可能な連結部材を弾性を有する板状
部材で構成した実用新案登録請求の範囲第１項記
載のフオーカスアクチユエータ。[Claims for Utility Model Registration] 1. A first piezoelectric drive means and a second piezoelectric drive means each comprising a pair of piezoelectric plates substantially parallel to each other, and a bendable connecting member connected to the first piezoelectric drive means; A focus actuator in which the second piezoelectric drive means is attached via a support member, and an objective lens holder is attached to the second piezoelectric drive member. 2. The focus actuator according to claim 1, wherein the bendable connecting member is constituted by a piezoelectric plate electrode. 3. The focus actuator according to claim 1, wherein the bendable connecting member is made of an elastic plate-like member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8984789U JPH082812Y2 (en) | 1989-08-01 | 1989-08-01 | Focus actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8984789U JPH082812Y2 (en) | 1989-08-01 | 1989-08-01 | Focus actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0332722U true JPH0332722U (en) | 1991-03-29 |
| JPH082812Y2 JPH082812Y2 (en) | 1996-01-29 |
Family
ID=31639405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8984789U Expired - Fee Related JPH082812Y2 (en) | 1989-08-01 | 1989-08-01 | Focus actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082812Y2 (en) |
-
1989
- 1989-08-01 JP JP8984789U patent/JPH082812Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082812Y2 (en) | 1996-01-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |