JP2001133826A5

JP2001133826A5 -

Info

Publication number: JP2001133826A5
Application number: JP1999319166A
Authority: JP
Filing date: 1999-11-10
Publication date: 2006-12-28
Anticipated expiration: 2019-11-10

Description

【特許請求の範囲】
【請求項１】
振れを補正する補正光学手段と、該補正光学手段を異なる二方向に移動させる為に各々推力を発生させる第１、第２の駆動手段と、前記補正光学手段を固定部材に対して弾性支持する弾性支持手段とを有する振れ補正光学装置において、前記弾性支持手段は、圧縮バネであることを特徴とする振れ補正光学装置。
【請求項２】
前記圧縮バネは、光軸を中心として等分に少なくとも３ヶ所に配置され、振れ補正非動作中においては、前記補正光学手段を光軸中心に保持することを特徴とする請求項１に記載の振れ補正光学装置。
【請求項３】
前記第１の駆動手段の少なくとも一部、及び、前記第２の駆動手段の少なくとも一部は、前記補正光学手段に設けられることを特徴とする請求項１又は２に記載の振れ補正光学装置。
【請求項４】
前記第１の駆動手段の少なくとも一部、及び、前記第２の駆動手段の少なくとも一部を、前記補正光学手段上の前記圧縮バネの取付け部とは光軸方向にずれた位置に設けたことを特徴とする請求項１又は２に記載の振れ補正光学装置。
【請求項５】
前記第１の駆動手段、前記第２の駆動手段を、導電部材と磁石とにより構成したことを特徴とする請求項１に記載の振れ補正光学装置。
【請求項６】
前記第１の駆動手段の導電部材、及び、前記第２の駆動手段の導電部材を、前記補正光学手段に設けたことを特徴とする請求項５に記載の振れ補正光学装置。
【請求項７】
前記補正光学手段を、前記第１の駆動手段による駆動方向、及び、前記第２の駆動手段の駆動方向を含む面に沿って変位するように規制する規制手段を有することを特徴とする請求項１に記載の振れ補正光学装置。
【請求項８】
前記規制手段の少なくとも一部を、前記補正光学手段に設けたことを特徴とする請求項７に記載の振れ補正光学装置。
【請求項９】
前記補正光学手段に設けられる前記規制手段の少なくとも一部を、前記補正光学手段上の前記圧縮バネの取付け部とは光軸方向にずれた位置に設けたことを特徴とする請求項８に記載の振れ補正光学装置。 [Claims]
[Claim 1]
The correction optical means for correcting the runout, the first and second driving means for generating thrusts to move the correction optical means in two different directions, and the correction optical means are elastically supported with respect to the fixing member. A runout correction optical device having an elastic support means, wherein the elastic support means is a compression spring.
2.
The first aspect of claim 1, wherein the compression springs are arranged at at least three places equally divided about the optical axis, and the correction optical means is held at the center of the optical axis during the runout correction non-operation. Runout correction optical device.
3.
The runout correction optical device according to claim 1 or 2, wherein at least a part of the first drive means and at least a part of the second drive means are provided in the correction optical means.
4.
At least a part of the first driving means and at least a part of the second driving means are provided at positions shifted in the optical axis direction from the mounting portion of the compression spring on the correction optical means. The runout correction optical device according to claim 1 or 2.
5.
The runout correction optical device according to claim 1, wherein the first driving means and the second driving means are composed of a conductive member and a magnet.
6.
The runout correction optical device according to claim 5, wherein the conductive member of the first drive means and the conductive member of the second drive means are provided in the correction optical means.
7.
The claim is characterized by having a regulating means for regulating the correction optical means so as to be displaced along a surface including a driving direction by the first driving means and a driving direction of the second driving means. The runout correction optical device according to 1.
8.
The runout correction optical device according to claim 7, wherein at least a part of the regulation means is provided in the correction optical means.
9.
8. The eighth aspect of the present invention, wherein at least a part of the regulating means provided in the compensating optical means is provided at a position deviated from the mounting portion of the compression spring on the compensating optical means in the optical axis direction. Runout correction optical device.

また、上記第２の目的を達成するために、請求項２に記載の発明は、圧縮バネを、光軸を中心として等分に少なくとも３ヶ所に配置し、振れ補正非動作中においては、前記補正光学手段を光軸中心に保持するようにした請求項１に記載の振れ補正光学装置とするものである。 Further, in order to achieve the second object, the invention according to claim 2 has the compression springs arranged at at least three places equally divided about the optical axis, and the above-mentioned invention is performed during the runout correction non-operation. The run-out correction optical device according to claim 1, wherein the correction optical means is held at the center of the optical axis.