Abstract: To provide a lens mount structure which can align a lens optical axis with high accuracy without constituting a complicated lens mount structure, the lens mount structure for mounting a lens barrel to a main body of a camera, or the like, by retaining flange portions formed along an outer periphery of a base body of a lens barrel with retaining portions formed on a cylindrical mount disposed on a front of the support unit, the center of gravity of the cylindrical barrel between an front edge and the flanges, wherein reference surfaces for aligning a lens optical axis of the lens barrel mounted on the main body are formed on the respective flange portions; the reference surfaces are formed while facing the center of gravity of the lens barrel, and the reference surfaces are given a slope; and the retaining portions retain the flange portions while the reference surfaces formed on the flange portions remain in contact with retaining surfaces formed on the respective retaining portions.

Abstract: To provide a lens barrel to which a plurality of lenses is attached, enabling high-precision alignment of lens optical axes of the respective optical lenses, the lens barrel includes a first lens-retaining surface having a plurality of first ribs contacting the first optical lens; and a second lens-retaining surface having a plurality of second ribs contacting the second optical lens so that the second surface retains the second optical lens, wherein the first ribs and the second ribs are formed are arranged so as to become offset from each other in a circumferential direction of the lens barrel.

Abstract: To provide a lens mount structure which can align a lens optical axis with high accuracy without constituting a complicated lens mount structure, the lens mount structure for mounting a lens barrel to a main body of a camera, or the like, by retaining flange portions formed along an outer periphery of a base body of a lens barrel with retaining portions formed on a cylindrical mount disposed on a front of the support unit, the center of gravity of the cylindrical barrel between an front edge and the flanges, wherein reference surfaces for aligning a lens optical axis of the lens barrel mounted on the main body are formed on the respective flange portions; the reference surfaces are formed while facing the center of gravity of the lens barrel, and the reference surfaces are given a slope; and the retaining portions retain the flange portions while the reference surfaces formed on the flange portions remain in contact with retaining surfaces formed on the respective retaining portions.

Abstract: To provide a lens barrel to which a plurality of lenses is attached, enabling high-precision alignment of lens optical axes of the respective optical lenses, the lens barrel includes a first lens-retaining surface having a plurality of first ribs contacting the first optical lens; and a second lens-retaining surface having a plurality of second ribs contacting the second optical lens so that the second surface retains the second optical lens, wherein the first ribs and the second ribs are formed are arranged so as to become offset from each other in a circumferential direction of the lens barrel.

Abstract: An optical path adjusting device comprises a hollow cylindrical mount having a center axis in alignment with an optical path of a light beam and an optical parallel mounted on the hollow cylindrical barrel so as to intersect the optical path of the light beam at a specified angle of intersection. The hollow cylindrical barrel is supported so as to rotate about an original optical path of the light beam, thereby causing a displacement of an optical path of said light beam coming out of the optical parallel close to or away from the original optical path of the light beam.

Abstract: An optical path adjusting device comprises a hollow cylindrical mount having a center axis in alignment with an optical path of a light beam and an optical parallel mounted on the hollow cylindrical barrel so as to intersect the optical path of the light beam at a specified angle of intersection. The hollow cylindrical barrel is supported so as to rotate about an original optical path of the light beam, thereby causing a displacement of an optical path of said light beam coming out of the optical parallel close to or away from the original optical path of the light beam.

Abstract: A light source unit having optical elements which include a laser source, a collimator lens, a cylindrical lens and an optical path adjusting optical parallel mounted in fixed positions on a metal mount is adjusted to provide given optical characteristics and secured to a plastic housing of an optical scanning device. After optical scanning device is installed to an image forming machine so as to direct a scanning beam from the laser source toward an image carrier which is scanned by the scanning beam.

Abstract: An apparatus for disintegrating a calculus in the human body by an underwater shock wave produced outside the human body. The apparatus includes a shock wave generation chamber having an inner surface in the shape of a part of a pseudo-ellipsoid of revolution having an opening therein. Also provided is a shock wave generation source positioned at the first focus of the pseudo-ellipsoid of revolution. In addition, a flexible container housing a liquid is attached to the shock wave generation chamber so that the liquid from the flexible container fills up the shock wave generation chamber. The flexible container containing the liquid is brought into contact with the human body, and the shock wave generation chamber is displaced so as to deform the flexible container, until the calculus in the human body is positioned at the second focus of the pseudo-ellipsoid of revolution.

Abstract: A shock wave generating apparatus is provided which includes a shock wave generating chamber and a rotatable carousel in which a plurality of microexplosive carrying members are removeably positioned. Each of the microexplosive carrying members are adapted to be pushed downwardly by a piston through a bore in the casing body and into a shock wave generating chamber. The microexplosive is detonated by heating a detonator adjacent to the explosive by virtue of electrical contact between the microexplosive carrying member and the piston, and activation of a microswitch. Alternately, the housing for the microexplosive carrying members can include a spring for forcing the members over the bore, with each member being forced downwardly by an piston to detonate an explosive charge.

Abstract: The present invention relates to an apparatus for providing intermittent explosion of a plurality of explosive charges initially attached to an explosive capsule support belt. The belt is indexed so that a plurality of spaced capsules on the belt can be separated from the belt by generally vertical movement of an explosive capsule holding rod and then detonated within a shock wave generating chamber which has at least part of its interior surface area which in the shape of a pseudo-ellipsoid. The belt comprises two spaced members which are attached to each other by a plurality of reinforcing rods, with a plurality of capsules being positioned between the base members in a first direction and between the reinforcing rods in a second direction; the capsules are held to the base members by attaching rods which extend from opposed base members.