Abstract: A lens apparatus including: a main body configured to house an optical system; and a mount part detachably mountable to the main body and a camera apparatus, in which the mount part includes a first electric contact part that contacts an electric contact part of the camera apparatus and a second electric contact part electrically conductive with the first electric contact part, in which the main body comprises an electric substrate and a third electric contact part electrically conductive with the electric substrate, in which the second electric contact part and the third electric contact part are in contact with each other by connecting the main body and the mount part to each other.

Abstract: A lens apparatus includes a first barrel member including a first helicoid screw on an inner surface included therein, a second barrel member including a second helicoid screw, screwed with the first helicoid screw, on an outer surface included therein, the second barrel member being movable along a direction of an axis of the first barrel member, an urging member configured to urge the second helicoid screw against the first helicoid screw in a direction of a diameter of the first barrel member, and a third barrel member including an outer surface which has a diameter smaller than a diameter of the second helicoid screw. The urging member is held by the second barrel member inside the second barrel member, and is in contact with the outer surface of the third barrel member.

Abstract: A lens apparatus includes an optical element, first and second fixed barrels coupled to each other, a conversion mechanism from a rotary motion to a linear motion, fitted to the first fixed barrel and configured to be rotated about a first axis as an axis of the first fixed barrel to drive the optical element along the first axis, an operation member fitted to an outer periphery of the second fixed barrel and configured to be operated to be rotated about a second axis as an axis of the second fixed barrel, and a transmission ring, supported by the conversion mechanism to be translatable in a first direction orthogonal to the first axis and by the operation member to be translatable in a second direction and orthogonal to the second axis, configured to transmit rotation from the operation member to the conversion mechanism.

Abstract: A lens apparatus includes an optical element, first and second fixed barrels coupled to each other, a conversion mechanism from a rotary motion to a linear motion, fitted to the first fixed barrel and configured to be rotated about a first axis as an axis of the first fixed barrel to drive the optical element along the first axis, an operation member fitted to an outer periphery of the second fixed barrel and configured to be operated to be rotated about a second axis as an axis of the second fixed barrel, and a transmission ring, supported by the conversion mechanism to be translatable in a first direction orthogonal to the first axis and by the operation member to be translatable in a second direction and orthogonal to the second axis, configured to transmit rotation from the operation member to the conversion mechanism.

Abstract: A lens apparatus includes a first barrel member including a first helicoid screw on an inner surface included therein, a second barrel member including a second helicoid screw, screwed with the first helicoid screw, on an outer surface included therein, the second barrel member being movable along a direction of an axis of the first barrel member, an urging member configured to urge the second helicoid screw against the first helicoid screw in a direction of a diameter of the first barrel member, and a third barrel member including an outer surface which has a diameter smaller than a diameter of the second helicoid screw. The urging member is held by the second barrel member inside the second barrel member, and is in contact with the outer surface of the third barrel member.

Abstract: A lens apparatus of the present invention includes: a first barrel configured not to be moved; a second barrel fitted to an inside of the first barrel and configured to be moved relative to the first barrel; and an elastic member fixed to an outer surface of the first barrel, and biasing an outer surface of the second barrel to an inner surface of the first barrel through a bore formed in the first barrel.

Abstract: A lens apparatus includes: a movable barrel arranged in a fixed barrel and holding an optical element; a converter that moves the optical element in an optical axis direction by rotating the movable barrel to the fixed barrel about an optical axis; and an operating part supported to the fixed barrel rotatably about an axis perpendicular to the optical axis, and arranged such that the operating part is rotated from outside of the fixed barrel. The operating part includes an eccentric shaft having an axis different from the rotation axis of the operating part and protruding to the inner diameter side, the eccentric shaft engages with a straight groove provided on the movable barrel and in parallel with the optical axis, and rotation of the operating part rotates the movable barrel about the optical axis via the eccentric shaft to move the optical element in the optical axis direction.

Abstract: A lens apparatus of the present invention includes: a first barrel configured not to be moved; a second barrel fitted to an inside of the first barrel and configured to be moved relative to the first barrel; and an elastic member fixed to an outer surface of the first barrel, and biasing an outer surface of the second barrel to an inner surface of the first barrel through a bore formed in the first barrel.

Abstract: A lens apparatus includes: a movable barrel arranged in a fixed barrel and holding an optical element; a converter that moves the optical element in an optical axis direction by rotating the movable barrel to the fixed barrel about an optical axis; and an operating part supported to the fixed barrel rotatably about an axis perpendicular to the optical axis, and arranged such that the operating part is rotated from outside of the fixed barrel. The operating part includes an eccentric shaft having an axis different from the rotation axis of the operating part and protruding to the inner diameter side, the eccentric shaft engages with a straight groove provided on the movable barrel and in parallel with the optical axis, and rotation of the operating part rotates the movable barrel about the optical axis via the eccentric shaft to move the optical element in the optical axis direction.