Vibration reduction mechanism and optical device

A vibration reduction mechanism, comprising:

• a first member and a second member which move relatively to achieve a blur correction when a blur occurs due to vibration;
• a guide member which is elongated in a first direction perpendicular to an optical axis, and which guides a relative movement of the first member and second member;
• the guide member having
• a plurality of first projections provided at a first member side of the guide member, the first projections being spaced with respect to each other along the first direction, and
• a plurality of second projections provided at a second member side of the guide member, the second projections being spaced with respect to each other along the first direction,
• the first member having first groove portions engaging with the first projections and provided at positions corresponding to the first projections,
• the second member having second groove portions engaging with the second projections and provided at positions corresponding to the second projections,
• wherein at least one of the first groove portions or the second groove portions is formed with an elongated hole shape extending along the first direction.

A vibration reduction mechanism, comprising:

• a first member and a second member which move relatively to achieve a blur correction when a blur occurs due to vibration;
• a guide member which is elongated in a first direction perpendicular to an optical axis, and which guides a relative movement of the first member and the second member;
• the guide member having
• a plurality of first groove portions provided at a first member side of the guide member, the first groove portions being spaced with respect to each other along the first direction, and
• a plurality of second groove portions provided at a second member side of the guide member, the second groove portions being spaced with respect to each other along the first direction;
• the first member having first projections engaging with the first groove portions and provided at positions corresponding to the first groove portions;
• the second member having second projections engaging with the second groove portions and provided at positions corresponding to the second groove portions,
• wherein at least one of the first groove portions or the second groove portions are formed with an elongated hole shape extending along the first direction.

A vibration reduction mechanism, comprising:

• a first member and a second member which move relatively achieve a blur correction when the blur occurs due to vibration;
• a guide member which is elongated in a first direction perpendicular to an optical axis, and which guides a relative movement of the first member and the second member;
• first engagement portions spaced relative to each other along the first direction, each first engagement portion having
• a first guide member part provided at a first member side of the guide member, and having one of a projection or a groove portion, and
• a first member part provided on the first member at a position corresponding to the first guide member, the first member part having another one of a projection or a groove portion than the first guide member part;
• and
• second engagement portions spaced relative to each other along the first direction, to engage the second member with the guide member, each second engagement portion having
• a second guide member part provided at a second member side of the guide member and having one of a projection or a groove portion, and
• a second member part provided on the second member and having another one of a projection or a groove portion than the second guide member,
• wherein groove portions of at least one of the first engagement portion or the second engagement portion are formed with an elongated hole shape extending along the first direction.