Abstract: An oil dilution inhibiting apparatus is configured to inhibit oil dilution caused by mixture of fuel into engine oil. The oil dilution inhibiting apparatus includes a control unit. The control unit is configured to estimate friction of an engine and determine that the oil dilution occurs when the friction of the engine is decreased to a value lower than or equal to a predetermined threshold value to perform control so that the engine is operated at a higher speed.

Abstract: An external storage device includes: a read out unit that reads out management information in a camera, regarding an image file that is stored within the camera; an identification unit that identifies information on specifying device to which the image file was transmitted, based upon the management information read out by the read out unit; a selection unit that selects an image file to be received from the camera, on the basis of a result of identification by the identification unit; and a reception unit that receives the selected image file.

Abstract: Goal: Providing a vibration-proof lens that can restrict an increase in thickness in the direction of the optical axis. Means: A vibration-proof lens unit comprising a lens holder that holds a vibration-proof lens; a support that supports the lens holder in a manner to be movable within a plane orthogonal to an optical axis of the vibration-proof lens; an engaging section that engages the lens holder with the support such that the lens holder can move (i) in a rotational direction around an axis line parallel to the optical axis of the vibration-proof lens and (ii) in a direction of a rotational radius orthogonal to the axis line; a rotational driving unit that moves the lens holder in the rotational direction; and a linear driving unit that moves the lens holder in the direction of the rotational radius.

Abstract: Goal: Providing a vibration-proof lens that can restrict an increase in thickness in the direction of the optical axis. Means: A vibration-proof lens unit comprising a lens holder that holds a vibration-proof lens; a support that supports the lens holder in a manner to be movable within a plane orthogonal to an optical axis of the vibration-proof lens; an engaging section that engages the lens holder with the support such that the lens holder can move (i) in a rotational direction around an axis line parallel to the optical axis of the vibration-proof lens and (ii) in a direction of a rotational radius orthogonal to the axis line; a rotational driving unit that moves the lens holder in the rotational direction; and a linear driving unit that moves the lens holder in the direction of the rotational radius.

Abstract: A camera includes: a photographic optical system that comprises a plurality of lenses; an image sensor that captures an image of a photographic subject formed through the photographic optical system; a projection lens unit that projects an image for projection via a projection lens unit, with at least one lens being common to the plurality of lenses of the photographic optical system and to the projection lens unit; and a shift mechanism that sets the at least one common lens to one of a first position upon an optical axis of the photographic optical system and a second position upon an optical axis of the projection lens unit.

Abstract: An external storage device includes: a read out unit that reads out management information in a camera, regarding an image file that is stored within the camera; an identification unit that identifies information on specifying device to which the image file was transmitted, based upon the management information read out by the read out unit; a selection unit that selects an image file to be received from the camera, on the basis of a result of identification by the identification unit; and a reception unit that receives the selected image file.

Abstract: A camera includes: a photographic optical system that comprises a plurality of lenses; an image sensor that captures an image of a photographic subject formed through the photographic optical system; a projection lens unit that projects an image for projection via a projection lens unit, with at least one lens being common to the plurality of lenses of the photographic optical system and to the projection lens unit; and a shift mechanism that sets the at least one common lens to one of a first position upon an optical axis of the photographic optical system and a second position upon an optical axis of the projection lens unit.

Abstract: An image-capturing device includes a photographic optical system; an image-capturing element provided rearward of the photographic optical system along an optical axis of the photographic optical system, which captures an image of a subject by receiving a light flux having been transmitted through the photographic optical system; and a motor provided further rearward of the image-capturing element along the optical axis, which drives the photographic optical system along the optical axis.

Abstract: An image-capturing device includes a photographic optical system; an image-capturing element provided rearward of the photographic optical system along an optical axis of the photographic optical system, which captures an image of a subject by receiving a light flux having been transmitted through the photographic optical system; and a motor provided further rearward of the image-capturing element along the optical axis, which drives the photographic optical system along the optical axis.