JPH0271809U - - Google Patents
Info
- Publication number
- JPH0271809U JPH0271809U JP15041888U JP15041888U JPH0271809U JP H0271809 U JPH0271809 U JP H0271809U JP 15041888 U JP15041888 U JP 15041888U JP 15041888 U JP15041888 U JP 15041888U JP H0271809 U JPH0271809 U JP H0271809U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- focusing
- legs
- mount base
- fixed
- 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
- 238000010586 diagram Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図および第２図はこの考案のレンズの焦点
調節機構の一実施例を示す図であつて、第１図は
一部断面視した正面図、第２図は第１図の要部の
拡大図である。第３図および第４図は他の実施例
を示す図であつて、第３図は一部断面視した正面
図、第４図は第３図の要部の拡大図である。第５
図はこの考案に係る超音波リニアモータの他の例
を示す正面図である。第６図は従来のレンズの焦
点調節機構を示す正面図である。
２１……固定レンズのマウントベース、２２…
…レンズ、２３……焦点調節用レンズ、２４……
焦点調節用レンズのマウントベース、３０……超
音波リニアモータ、３１，３２……脚部、３３…
…胴部、３３Ａ……凹所、３４……振動体、３６
，３７……圧電素子、３８……摩擦材、４０……
ピン、４０Ａ……ばね受け、４１……コイルばね
（弾性部材）、２０……超音波リニアモータ、７
１，７２……脚部、７３……胴部、７４，７５…
…ブロツク。
1 and 2 are diagrams showing one embodiment of the focus adjustment mechanism of the lens of this invention, in which FIG. 1 is a partially sectional front view, and FIG. 2 is a main part of the lens shown in FIG. 1. This is an enlarged view. 3 and 4 are views showing other embodiments, in which FIG. 3 is a partially sectional front view, and FIG. 4 is an enlarged view of the main part of FIG. 3. Fifth
The figure is a front view showing another example of the ultrasonic linear motor according to this invention. FIG. 6 is a front view showing a conventional lens focus adjustment mechanism. 21...Fixed lens mount base, 22...
...Lens, 23...Focal adjustment lens, 24...
Focus adjustment lens mount base, 30... Ultrasonic linear motor, 31, 32... Legs, 33...
...Body part, 33A...Recess, 34...Vibrating body, 36
, 37... piezoelectric element, 38... friction material, 40...
Pin, 40A...Spring receiver, 41...Coil spring (elastic member), 20...Ultrasonic linear motor, 7
1, 72... Legs, 73... Torso, 74, 75...
...Brock.
Claims (1)
た焦点調節用レンズをレンズの軸方向に移動させ
ることにより焦点を合わせるレンズの焦点調節機
構において、 上記固定レンズのマウントベースまたは上記焦
点調節用レンズのマウントベースの一方に、上記
焦点調節用レンズの移動方向に配置された少なく
とも２本以上の脚部とこれらの脚部の端部を連結
する胴部とこれらの脚部と胴部とをそれぞれ振動
させる振動源とを備えてなる超音波リニアモータ
が、上記脚部の先端を上記固定レンズのマウント
ベースまたは上記焦点調節用レンズのマウントベ
ースの他方に圧接して設けられていることを特徴
とするレンズの焦点調節機構。[Claims for Utility Model Registration] In a focusing mechanism for a lens that focuses a fixed lens by moving a focusing lens placed opposite the fixed lens in the axial direction of the lens, A mount base or one of the mount bases of the focusing lens, at least two or more legs disposed in the moving direction of the focusing lens, a body connecting the ends of these legs, and An ultrasonic linear motor comprising a vibration source that vibrates the legs and the body, presses the tips of the legs against the other of the mount base of the fixed lens or the mount base of the focusing lens. A focusing mechanism for a lens, characterized in that it is provided with a focusing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15041888U JPH0271809U (en) | 1988-11-18 | 1988-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15041888U JPH0271809U (en) | 1988-11-18 | 1988-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0271809U true JPH0271809U (en) | 1990-05-31 |
Family
ID=31423545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15041888U Pending JPH0271809U (en) | 1988-11-18 | 1988-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0271809U (en) |
-
1988
- 1988-11-18 JP JP15041888U patent/JPH0271809U/ja active Pending