A removable and flexible protective cap that is configured and dimensioned to stretch and slip over fixed camera lenses, detachable camera lenses and other tubular-shaped objects. The protective cap fits on objects having different diameters. The protective cap further includes integrated bumpers to provide improved protection against impacts. The protective cap has a memory such that when it is removed from a lens, it returns to its original shape. The protective cap may include a lint-resistant feature to prevent lint and dust from adhering to the cap. The protective cap is particularly suited for lenses used in photography, videography, hunting, military, and astronomy. The protective cap is also suited for use on non-optical devices, including gun barrels. In addition, the protective cap is suitable for use on other tubular-shaped objects.

A removable and flexible protective cap that is configured and dimensioned to stretch and slip over fixed camera lenses, detachable camera lenses and other tubular-shaped objects. The protective cap fits on objects having different diameters. The protective cap further includes integrated bumpers to provide improved protection against impacts. The protective cap has a memory such that when it is removed from a lens, it returns to its original shape. The protective cap may include a lint-resistant feature to prevent lint and dust from adhering to the cap. The protective cap is particularly suited for lenses used in photography, videography, hunting, military, and astronomy. The protective cap is also suited for use on non-optical devices, including gun barrels. In addition, the protective cap is suitable for use on other tubular-shaped objects.

An example device includes a main housing having a rotation track. The device also includes a camera having a plurality of imaging modules. The camera is attached to the main housing externally. A subset of the plurality of imaging modules is to power on by a rotation of the camera via the rotation track.

To provide an imaging system, an imaging device, and an imaging method capable of accurately and easily synchronizing a plurality of imaging devices while suppressing a manufacturing cost and the like of the imaging device. Provided is an imaging system including three sound devices configured to output reference sounds different from one another, and a plurality of imaging devices configured to perform imaging in synchronization with one another on the basis of the reference sounds, in which each of the sound devices includes a first capture unit configured to capture the reference sound output from another of the sound devices, and an output unit configured to output the corresponding reference sound on the basis of the capture of the reference sound from the another of the sound devices, and each of the imaging devices includes a second capture unit configured to capture each of the reference sounds, a storage unit configured to store information regarding mutual relative positions of the three sound devices, and a synchronization signal generation unit configured to correct any one of the reference sounds on the basis of an interval of capturing each of the reference sounds and the relative positions to generate a synchronization signal for imaging.

A vibrating device includes a dome-shaped cover, a cylindrical or substantially cylindrical vibrating body, and a piezoelectric element. The dome-shaped cover is disposed so as to include a detection field of an optical detector element, and the cylindrical or substantially cylindrical vibrating body is fixed to the cover. The piezoelectric element is fixed to the vibrating body and vibrates the cover via the vibrating body. The vibrating body includes a cylinder portion, a first connection portion connected to a first end portion of the cylinder portion, a first ring-shaped portion connected to the first connection portion at a position near the cover, a second connection portion connected to a second end portion of the cylinder portion, and a second ring-shaped portion connected to the second connection portion at a position opposite to a surface to which the cylinder portion is connected.

A lens assembly may include a plurality of lenses; and a lens barrel holding the plurality of lenses. At least one of the lenses may include a glass lens press-fit and held in a lens holder comprising a cylindrical portion. An adhesive-agent groove connected to a fitting hole inlet may be disposed in a face of the lens holder adjacent to the fitting hole inlet to retain an adhesive agent injected into the adhesive-agent groove, the glass lens being fit to the lens holder via the fitting hole inlet. Catches protruding along a direction of an optical axis may be disposed inside the adhesive-agent groove. An adhesive agent may be disposed in a gap formed between a side face of the glass lens and the catches face facing each other, the adhesive agent fixing the glass lens to the lens holder.

An image capture device may include one or more optical elements. One or more lens covers may be used to cover the optical element(s). Usage of the lens cover(s) with respect to the optical element(s) may be determined. The operation of the image capture device may be changed based on whether the lens cover(s) are on or off the optical element(s).

An anti-shake compensation structure is provided. The anti-shake compensation structure includes an auto-focus module driving a lens to move along a light entering path of the lens. The auto-focus module includes a lens holder holding the lens, a coil adjacent to the lens holder, and a magnet corresponding to the coil. The anti-shake compensation structure further includes an outer frame supporting the lens holder, and a compensation driving unit driving the lens to sway relative to the outer frame along a direction not parallel to the light entering path. The compensation driving unit includes a compensation coil corresponding to the magnet.

An anti-shake compensation structure is provided. The anti-shake compensation structure includes an auto-focus module driving a lens to move along a light entering path of the lens. The auto-focus module includes a lens holder holding the lens, a coil adjacent to the lens holder, and a magnet corresponding to the coil. The anti-shake compensation structure further includes an outer frame supporting the lens holder, and a compensation driving unit driving the lens to sway relative to the outer frame along a direction not parallel to the light entering path. The compensation driving unit includes a compensation coil corresponding to the magnet.

A lens limiting assembly includes a lens assembly ring and a locking ring arranged outside the lens assembly ring. The lens assembly ring includes an accommodating groove. The locking ring includes a body and a hook protruding inwardly from the body and accommodated in the accommodating groove.