Optical apparatus
An optical apparatus includes a lens barrel, holding members sandwiching and holding the lens barrel with elastic members therebetween, and the elastic members disposed between the lens barrel and the holding members. The holding members include a first holding member, and a second holding member which is disposed on a side opposite to the first holding member in an optical axis direction with the lens barrel sandwiched therebetween. The elastic members include first elastic members and second elastic members. A plurality of first accommodation portions accommodating the first elastic members are formed in one of the lens barrel and the first holding member. A plurality of second accommodation portions accommodating the second elastic members are formed in one of the lens barrel and the second holding member. The first elastic members and the second elastic members have spherical shapes. The first accommodation portions and the second accommodation portions have recessed shapes capable of accommodating the elastic members.
1 . An optical apparatus comprising:
a lens barrel;
holding members sandwiching and holding the lens barrel with elastic members therebetween; and
the elastic members disposed between the lens barrel and the holding members,
wherein the holding members include a first holding member, and a second holding member which is disposed on a side opposite to the first holding member in an optical axis direction with the lens barrel sandwiched therebetween,
the elastic members include a plurality of first elastic members disposed between the lens barrel and the first holding member, and a plurality of second elastic members disposed between the lens barrel and the second holding member,
a plurality of first accommodation portions accommodating the first elastic members are formed in at least one of the lens barrel and the first holding member,
a plurality of second accommodation portions accommodating the second elastic members are formed in at least one of the lens barrel and the second holding member,
the first elastic members and the second elastic members have spherical shapes, and
the first accommodation portions and the second accommodation portions have recessed shapes capable of accommodating the elastic members.
2 . The optical apparatus according to claim 1 ,
wherein the first elastic members and the second elastic members are disposed in the same shape and the same number.
3 . The optical apparatus according to claim 1 ,
wherein amounts of deflection in the first elastic members and the second elastic members are equivalent to each other.
4 . The optical apparatus according to claim 1 ,
wherein the first accommodation portions and the second accommodation portions are provided in the same shape and the same number.
5 . The optical apparatus according to claim 1 ,
wherein the first accommodation portions and the second accommodation portions are formed in one of the lens barrel and the holding members assembled first.
6 . The optical apparatus according to claim 1 ,
wherein cross-sectional shapes of the first accommodation portions and the second accommodation portions in a plane orthogonal to an optical axis are circular shapes or polygonal shapes.
7 . The optical apparatus according to claim 1 ,
wherein in the recessed shapes of the first accommodation portions and the second accommodation portions, a cross-sectional area of an opening portion is larger than a cross-sectional area of a bottom surface portion in a plane orthogonal to an optical axis.
8 . An optical apparatus comprising:
a lens barrel;
holding members sandwiching and holding the lens barrel with elastic members therebetween; and
the elastic members disposed between the lens barrel and the holding members,
wherein the holding members include a first holding member, and a second holding member which is disposed on a side opposite to the first holding member in an optical axis direction with the lens barrel sandwiched therebetween,
the elastic members include a plurality of first elastic members disposed between the lens barrel and the first holding member, and a plurality of second elastic members disposed between the lens barrel and the second holding member,
a plurality of first accommodation portions accommodating the first elastic members are formed in at least one of the lens barrel and the first holding member,
a plurality of second accommodation portions accommodating the second elastic members are formed in at least one of the lens barrel and the second holding member,
the first elastic members and the second elastic members have regular polyhedron shapes, and
the first accommodation portions and the second accommodation portions have recessed shapes capable of accommodating the elastic members.