A control apparatus provided in a lens apparatus controls a plurality of optical systems each including an aperture diaphragm which is variable in aperture diameter. A lens control unit sets driving amount information regarding the respective driving amounts of the aperture diaphragms, and sets driving speed of each of the aperture diaphragms based on the driving amount information. The lens control unit determines the driving speeds of the respective aperture diaphragms such that driving times of the aperture diaphragms of the plurality of optical systems match each other.

A lens barrel includes a linear actuator that is disposed more to the outer peripheral side than the outer peripheral surface of a focus lens unit, and has two permanent magnets, a yoke unit, and a coil; and the focus lens unit that holds a focus lens and is driven back and forth along the optical axis direction. The permanent magnets are disposed substantially in parallel and spaced apart, with the same poles facing each other. The yoke unit includes a center yoke portion, a back yoke portion, and a yoke that magnetically couples the center yoke portion and the back yoke portion. The coil is wound around the center yoke portion, and its center is offset from the center of the two permanent magnets to the outer peripheral side with respect to the optical axis center of the focus lens.

A lens barrel includes a linear actuator that is disposed more to the outer peripheral side than the outer peripheral surface of a focus lens unit, and has two permanent magnets, a yoke unit, and a coil; and the focus lens unit that holds a focus lens and is driven back and forth along the optical axis direction. The permanent magnets are disposed substantially in parallel and spaced apart, with the same poles facing each other. The yoke unit includes a center yoke portion, a back yoke portion, and a yoke that magnetically couples the center yoke portion and the back yoke portion. The coil is wound around the center yoke portion, and its center is offset from the center of the two permanent magnets to the outer peripheral side with respect to the optical axis center of the focus lens.

A low parallax imaging device includes a plurality of imaging lens elements arranged to capture adjacent fields of view. In some examples, adjacent imaging lens elements may contact at datum features to maintain a desired spacing. The spacing may allow for partial overlapping of low-parallax volumes associated with the respective imaging lens elements.

A low parallax imaging device includes a plurality of imaging lens elements arranged to capture adjacent fields of view. In some examples, adjacent imaging lens elements may contact at datum features to maintain a desired spacing. The spacing may allow for partial overlapping of low-parallax volumes associated with the respective imaging lens elements.

The present teachings provide an image capture device including an optical system having a bayonet. The bayonet is connected to a body of the image capture device. The bayonet includes a forward surface, a rearward surface opposing the forward surface, and a bayonet axial surface; and. The optical system includes an integrated sensor and lens assembly (ISLA) extending away from the rearward surface of the bayonet; and a lens module extending away from the forward surface of the bayonet and comprising a lens module axial surface, wherein the lens module axial surface contacts the bayonet axial surface so that the lens module is axially aligned with the bayonet.

The present teachings provide an image capture device including an optical system having a bayonet. The bayonet is connected to a body of the image capture device. The bayonet includes a forward surface, a rearward surface opposing the forward surface, and a bayonet axial surface; and. The optical system includes an integrated sensor and lens assembly (ISLA) extending away from the rearward surface of the bayonet; and a lens module extending away from the forward surface of the bayonet and comprising a lens module axial surface, wherein the lens module axial surface contacts the bayonet axial surface so that the lens module is axially aligned with the bayonet.

An image capture device is described that includes a body; a mounting structure that is connected to the body; an integrated sensor-lens assembly (ISLA) that defines an optical axis and extends through the body and the mounting structure; and an accessory that is releasably connectable to the mounting structure via rotation through a range of motion less than approximately 90 degrees. The mounting structure and the accessory include corresponding angled bearing surfaces that are configured for engagement such that rotation of the accessory relative to the mounting structure creates a bearing effect that displaces the accessory along the optical axis to thereby reduce any axial force required during connection and disconnection of the accessory.

An image capture device is described that includes a body; a mounting structure that is connected to the body; an integrated sensor-lens assembly (ISLA) that defines an optical axis and extends through the body and the mounting structure; and an accessory that is releasably connectable to the mounting structure via rotation through a range of motion less than approximately 90 degrees. The mounting structure and the accessory include corresponding angled bearing surfaces that are configured for engagement such that rotation of the accessory relative to the mounting structure creates a bearing effect that displaces the accessory along the optical axis to thereby reduce any axial force required during connection and disconnection of the accessory.

A piezoelectric material including a perovskite-type metal oxide represented by the following general formula (1); Bi; and Mn, wherein the content of Bi is 0.1-0.5 mol % with respect to 1 mol of the metal oxide, the content of Mn is 0.3-1.5 mol % with respect to 1 mol of the metal oxide, and the piezoelectric material satisfies (L.sub.4−L.sub.5)/L.sub.5≧0.05 and (L.sub.8−L.sub.9)/L.sub.9≧0.05 when the lengths of twelve Bi—O bonds with Bi that is located at a 12-fold site with respect to O in a perovskite-type unit cell as a starting point are taken to be L.sub.1 to L.sub.12 in length order:

(Ba.sub.1-xM1.sub.x)(Ti.sub.1-yM2.sub.y)O.sub.3  (1)

wherein 0≦x≦0.2, 0≦y≦0.1, and M1 and M2 are mutually different metal elements which have a total valence of +6 and are selected from other elements than Ba, Ti, Bi and Mn.