Abstract: A sensor module of the present invention is arranged on a finger of a robot hand. The finger has a pulp region for applying a force to a subject, and a back region opposite to the pulp region. The sensor module of the present invention includes two or more sensors and a surface member. The sensors are arranged at positions corresponding to the pulp region of the finger to detect the force. The surface member covers the finger and the sensors. The sensors are arrayed in a circumferential direction with a predetermined gap. A portion of the surface member covering the pulp region is formed of an elastic material. The portion of the surface member covering the pulp region has an easily-deformable portion at least in a range corresponding to the gap.

Abstract: An optical system includes a movable unit movable in a direction eccentric to an optical axis. The movable unit includes a resin layer and a lens cemented together and satisfies a predetermined condition.

Abstract: A zoom lens includes a plurality of lens units. The plurality of lens units consist of, in order from an object side to an image side, a first lens unit having a negative refractive power, a middle group including one or more lens units, and a final lens unit having a negative refractive power. Each distance between adjacent lens units changes during zooming. The first lens unit includes at least three negative lenses. Predetermined conditions are satisfied.

Abstract: An optical system includes, in order from an object side to an image side, a front lens unit having positive refractive power, an intermediate group, and a rear lens unit. A distance between adjacent lens units changes during focusing. The front lens unit includes a maximum air gap in the optical system. The front lens unit and the rear lens unit do not move for focusing. The intermediate group includes two or more focus lens units that move in different loci for focusing. Predetermined inequalities are satisfied.

Abstract: An apparatus includes a first focus lens, a second focus lens, a first actuator configured to drive the first focus lens, and a second actuator configured to drive the second focus lens. Predetermined inequalities are satisfied.

Abstract: An optical system consisting of a first lens unit having positive refractive power, an intermediate group including one or more lens units, and a final lens unit, disposed in this order from an object side to an image side, with a distance between adjacent lens units that changes during focusing, wherein the first and final lens units remain stationary for focusing, wherein the first lens unit consists of a first subunit including a plurality of positive lenses and a second subunit, disposed in this order from the object side to the image side, wherein the first and the second subunits are disposed with an air gap between the first and second subunits that is the largest air gap formed in the optical system, wherein the optical system satisfies the predetermined inequalities.

Abstract: A zoom lens includes a plurality of lens units. The plurality of lens units consist of, in order from an object side to an image side, a first lens unit having a negative refractive power, a middle group including one or more lens units, and a final lens unit having a negative refractive power. Each distance between adjacent lens units changes during zooming. The first lens unit includes at least three negative lenses. Predetermined conditions are satisfied.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power that does not move during zooming, a second lens unit having negative refractive power that moves during zooming, and a subsequent lens group including one or more lens units. A distance between adjacent lens units changes during zooming. The first lens unit includes four or fewer lenses. Predetermined inequalities are satisfied.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and three or more lens units. A distance between adjacent lens units varies during zooming. A predetermined condition is satisfied.

Abstract: A zoom lens includes a plurality of lens units, the plurality of lens units consisting of, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a rear group consisting of one or more lens units. A distance between adjacent lens units changes during zooming, and the second lens unit does not move for zooming. At least a part of the second lens unit moves in a direction including a component orthogonal to an optical axis during image stabilization. A lens disposed closest to an object in the second lens unit has positive refractive power. A predetermined inequality is satisfied.

Abstract: A zoom lens comprises a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a rear lens group including one or more lens units. The first lens unit, the second lens unit, the rear lens group are arranged in order from an object side to an image side. Intervals between adjacent lens units change during zooming. The first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end. The second lens unit includes three or more lenses. The zoom lens satisfies predetermined inequalities.

Abstract: A zoom lens comprises a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a rear lens group including one or more lens units. The first lens unit, the second lens unit, the rear lens group are arranged in order from an object side to an image side. Intervals between adjacent lens units change during zooming. The first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end. The second lens unit includes three or more lenses. The zoom lens satisfies predetermined inequalities.

Abstract: A zoom lens consisting of, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear lens unit having one or more lens units and having a positive refractive power as a whole. Intervals between adjacent lens units change during zooming. The first lens unit has at least three meniscus lenses each having a negative refractive power and a convex shape toward the object side. At least one of the at least three meniscus lenses includes an aspherical surface having a positive aspherical amount. A predetermined condition is satisfied.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and three or more lens units. A distance between adjacent lens units varies during zooming. A predetermined condition is satisfied.

Abstract: An optical system includes, in order from an object side to an image side, first to fourth lens units. A distance changes between adjacent lens units during focusing from infinity to a close distance. The optical system includes an aperture stop disposed on the image side of the second lens unit, a final lens unit, the first lens unit and the final lens unit being fixed relative to the image plane during the focusing, and focus lens units disposed on the object side and the image side of the aperture stop. A focus lens unit closest to the image plane among the focus lens units moves toward the image side during the focusing. The optical system is configured to increase an absolute value of an imaging magnification at a shortest imaging distance to 0.5 times or higher. The final lens unit includes positive and negative lenses. A predetermined condition is satisfied.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and three or more lens units. A distance between adjacent lens units varies during zooming. A predetermined condition is satisfied.

Abstract: A zoom lens consisting of, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear lens unit having one or more lens units and having a positive refractive power as a whole. Intervals between adjacent lens units change during zooming. The first lens unit has at least three meniscus lenses each having a negative refractive power and a convex shape toward the object side. At least one of the at least three meniscus lenses includes an aspherical surface having a positive aspherical amount. A predetermined condition is satisfied.

Abstract: A zoom lens includes a plurality of lens units. The plurality of lens units consist of, in order from an object side to an image side, a first lens unit having a negative refractive power, a middle group including one or more lens units, and a final lens unit having a negative refractive power. Each distance between adjacent lens units changes during zooming. The first lens unit includes at least three negative lenses. Predetermined conditions are satisfied.

Abstract: A zoom lens consisting of, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear lens unit having one or more lens units and having a positive refractive power as a whole. Intervals between adjacent lens units change during zooming. The first lens unit has at least three meniscus lenses each having a negative refractive power and a convex shape toward the object side. At least one of the at least three meniscus lenses includes an aspherical surface having a positive aspherical amount. A predetermined condition is satisfied.

Abstract: An optical system includes a movable unit movable in a direction eccentric to an optical axis. The movable unit includes a resin layer and a lens cemented together and satisfies a predetermined condition.