Abstract: A lens barrel includes lens units movable in an optical axis direction, a driving unit including an annular actuator in which an optical axis serves as a rotation center, a first cam cylinder disposed inwardly of the annular actuator and including a circular cylindrical base portion and a large-diameter portion, a second cam cylinder configured to drive at least one of the lens units by rotating at an outer-peripheral side of the large-diameter portion, and a rotation transmitting portion provided at the large-diameter portion and transmitting rotation of the first cam cylinder to the second cam cylinder, wherein, in a state in which the length of the lens barrel is shortest, a portion of the second cam cylinder and the rotation transmitting portion overlap in the optical axis direction a lens unit holding frame that is closest to an object side.

Abstract: An interchangeable lens (second interchangeable lens) is disclosed which allows a protruding amount from a mount reference surface of the interchangeable lens to be increased. The second interchangeable lens has a protruding portion protruding from a mount reference surface toward an image plane, has a larger protruding amount than the first interchangeable lens and has the same flange back as the first interchangeable lens. The first camera prevents mounting of the second interchangeable lens by the protruding portion of the second interchangeable lens contacting the first wall portion. The second camera includes a second wall portion provided at a position retreated from the protruding portion. The second camera includes a rotatable mirror member, and the rotation center of the mirror member is positioned on the opposite side of a finder optical system with respect to a plane including an in-plane direction of the mirror member.

Abstract: The present invention relates to sliding material provided by sintering a lead-free copper or copper alloy and contains at least one mineral selected from the group consisting of talc, mica, kaolinite mineral and montmorillonite mineral. Pb has conventionally been included in sliding materials for the purpose of obtaining conformability and seizure resistance. Despite the absence of Pb, the Pb-free copper-based sliding material and sliding parts according to the present invention have improved sliding properties.

Abstract: Polyacetal resin compositions, including a polyacetal copolymer, 0.2 to 2 parts by mass of a hindered amine material and 0.2 to 10 parts by mass of powdery aluminum, with respect to 100 parts by mass of a polyacetal copolymer, and 0.3 to 10 parts by mass of a fatty acid having a carbon number of 10 to 30, with respect to 100 parts by mass of the powdery aluminum. Methods of making the compositions, and end products including the resin compositions are also provided.

Abstract: An information medium substrate is formed as a flat plate and includes a first convex part formed on one surface of the information medium substrate in a region between a rim part of a center hole and an inner circumferential edge of an information region and a second convex part formed on another surface of the information medium substrate at a position that overlaps a protruding end part of the first convex part in a thickness direction of the information medium substrate.

Abstract: A tremolo device of an electric guitar includes an inertia block or tremolo bridge plate for attachment to the guitar and having a bore therethrough, an arm attached at a proximal end thereof to the inertia block or tremolo bridge plate, a potentiometer and/or a switch located at a distal end of the arm for controlling electrical functions of the guitar and/or associated amplifier, and one or more wires extending from the potentiometer and/or switch through the arm and passing through the bore of the inertia block or tremolo bridge plate for connection to circuitry within the guitar.

Abstract: A lens barrel includes lens units movable in an optical axis direction, a driving unit including an annular actuator in which an optical axis serves as a rotation center, a first cam cylinder disposed inwardly of the annular actuator and including a circular cylindrical base portion and a large-diameter portion, a second cam cylinder configured to drive at least one of the lens units by rotating at an outer-peripheral side of the large-diameter portion, and a rotation transmitting portion provided at the large-diameter portion and transmitting rotation of the first cam cylinder to the second cam cylinder, wherein, in a state in which the length of the lens barrel is shortest, a portion of the second cam cylinder and the rotation transmitting portion overlap in the optical axis direction a lens unit holding frame that is closest to an object side.

Abstract: Polyacetal resin compositions, including a polyacetal copolymer, 0.2 to 2 parts by mass of a hindered amine material and 0.2 to 10 parts by mass of powdery aluminum, with respect to 100 parts by mass of a polyacetal copolymer, and 0.3 to 10 parts by mass of a fatty acid having a carbon number of 10 to 30, with respect to 100 parts by mass of the powdery aluminum. Methods of making the compositions, and end products including the resin compositions are also provided.

Abstract: A spatial coupling provided between an amplified-light waveguide and an output-light waveguide includes a wavelength selecting element that selectively transmits a light having a desired wavelength band out of a spontaneous emission light generated in the amplified-light waveguide and a lens unit that couples the spontaneous emission light to the wavelength selecting unit. An input-side light reflecting unit provided between a semiconductor pumping laser and the amplified-light waveguide and an output-side light reflecting unit formed on an output side of the spatial coupling unit form a laser resonator.

Abstract: An object of the present invention is to obtain a composition, which is excellent in amelioration of a lipid metabolism disorder and has a preventive or ameliorating effect on hyperlipemia, obesity or type II diabetes induced by the lipid metabolism disorder, and is also economical and safe with respect to allergy, by extracting a rice bran extract containing a rice bran protein, followed by separation. Disclosed is a composition for amelioration of a lipid metabolism disorder, containing a rice bran protein.

Abstract: The optical apparatus includes an image pickup optical system including a focus lens, a controller controlling movement of the focus lens in an optical axis direction of the image pickup optical system, a shake detector detecting a shake amount of the optical apparatus in the optical axis direction, and a memory storing plural shake amounts sequentially detected by the shake detector. The controller calculates, in response to a start instruction of exposure for the image pickup and before start of the exposure, a predictive value of the shake amount for a time point of the exposure based on the plural shake amounts stored in the memory and including at least one shake amount detected after the start instruction of exposure. The controller moves the focus lens to a position corresponding to the predictive value before the start of the exposure.

Abstract: A first optical waveguide guides a pumping light emitted from a semiconductor laser. A second optical waveguide absorbs the pumping light and emits a spontaneous emission light having a wavelength longer than that of the pumping light. A third optical waveguide guides a light output from the second optical waveguide to outside. A wavelength selecting element is provided between the second optical waveguide and the third optical waveguide, across which a resonator is formed between the semiconductor laser side and an output side to outside. A wavelength of a laser light emitted from the resonator is set by controlling length of the second optical waveguide.

Abstract: An intermediate for an optical recording medium, according to the present invention, is an intermediate produced beforehand for manufacturing an optical recording medium that has a central mounting hole formed in a central portion thereof and one or more kinds of functional layers formed on a surface thereof, for enabling at least one of information recording and information reproduction. The intermediate has a provisional central hole, which is smaller in diameter than the central mounting hole, formed in a central portion thereof. This makes it possible to drop resin in the vicinity of the center of the intermediate without using a disk-shaped member, in performing spin coating on the intermediate, whereby it is possible to make the layer of applied resin substantially uniform in thickness.

Abstract: A lens apparatus includes a supporting member including a parallel engaging portion parallel to an optical axis direction and a circumferential engaging portion extending in the circumferential direction on a plane orthogonal to the optical axis direction; a lens supporting member configured to supported an optical element; an eccentricity adjusting mechanism including a first adjusting member supported on the parallel engaging portion of the supporting member on the outer periphery of the lens supporting member in a rotatable manner around an axis orthogonal to the optical axis; and an inclination adjusting mechanism including a second adjusting member supported on the circumferential engaging portion of the supporting member on the outer periphery of the lens supporting member in a rotatable manner around an axis orthogonal to the optical axis.

Abstract: A spatial coupling provided between an amplified-light waveguide and an output-light waveguide includes a wavelength selecting element that selectively transmits a light having a desired wavelength band out of a spontaneous emission light generated in the amplified-light waveguide and a lens unit that couples the spontaneous emission light to the wavelength selecting unit. An input-side light reflecting unit provided between a semiconductor pumping laser and the amplified-light waveguide and an output-side light reflecting unit formed on an output side of the spatial coupling unit form a laser resonator.

Abstract: An information medium substrate is formed as a flat plate and includes a first convex part formed on one surface of the information medium substrate in a region between a rim part of a center hole and an inner circumferential edge of an information region and a second convex part formed on another surface of the information medium substrate at a position that overlaps a protruding end part of the first convex part in a thickness direction of the information medium substrate.

Abstract: A lens apparatus includes a supporting member including a parallel engaging portion parallel to an optical axis direction and a circumferential engaging portion extending in the circumferential direction on a plane orthogonal to the optical axis direction; a lens supporting member configured to supported an optical element; an eccentricity adjusting mechanism including a first adjusting member supported on the parallel engaging portion of the supporting member on the outer periphery of the lens supporting member in a rotatable manner around an axis orthogonal to the optical axis; and an inclination adjusting mechanism including a second adjusting member supported on the circumferential engaging portion of the supporting member on the outer periphery of the lens supporting member in a rotatable manner around an axis orthogonal to the optical axis.

Abstract: While clamped by a clamping jig 100, polarization-maintaining fiber cables 11 and 12 are automatically oriented with an orientation adjusting unit 200 and then heated by a heater 105 for curing thermoset resins.

Abstract: A stamper holder capable molding of a substrate having a high-quality. The stamper holder is mounted in a mold of a mold assembly that molds a substrate for an information recording medium, together with a stamper having a molding surface for forming micro asperities in a surface of the substrate, in a state where the stamper is fitted in an insertion hole formed through a central portion of the stamper. The stamper holder is formed such that an outer periphery thereof is increased in diameter on a side toward the molding surface compared with a reverse side thereof to form a sloped surface, and part or all of an outer peripheral surface of the stamper holder opposed to an inner peripheral surface of the stamper defining the insertion hole has a shape complementary to the inner peripheral surface of the stamper.

Abstract: There is provided an intermediate for an optical recording medium, which can be uniformly coated with resin by the spin coating method without using a resin coating-assisting member, and allows formation of a central mounting hole without burrs. The intermediate comprises a hollow cylindrical protruding portion protruding from one surface on which functional layers are formed and a circular recess formed in a central portion of the other surface and having a diameter equal to that of the central mounting hole, and a temporary central hole formed to extend through a central portion of the recess and having a diameter smaller than that of the recess. The protruding portion has an outer diameter smaller than the diameter of the mounting hole and an inner diameter not smaller than the diameter of the temporary central hole, and has a central axis thereof substantially aligned with a center of the temporary central hole.