Abstract: An imaging optical apparatus with a thin blade containing member for containing a blade member for limiting an opening, having an insertion portion that has an opening; an actuator for causing a blade member to slide; a containing frame for containing the actuator and the blade containing member, except for the insertion portion, having, on an outer edge, a recessed lens frame retaining portion into which the insertion portion; a lens frame, held in the lens frame retaining portion, having an insertion hole, for insertion of the insertion portion so that the center of the opening will be coaxial with the optical axis; and a clip for holding, in cooperation with the containing frame, a lens frame that is held in the lens frame retaining portion, through joining with the containing frame.

Abstract: An optical unit has a lens frame that has a slit in a cylinder, and a blade driving device, comprising an insertion portion for insertion into the slit, wherein an opening, provided in the insertion portion, is disposed between lenses in a lens frame, wherein: the blade driving device comprises a frame that has a recessed lens frame storing portion with the insertion portion protruding; a cylinder of the lens frame comprises a pair of supporting faces that are perpendicular to the optical axis of the lens; and the lens frame storing portion of the frame has contact surfaces that contact each of a pair of supporting faces.

Abstract: To enable adjustment of a lens frame (lens barrel) independently, and also to enable a reduction in thickness along the optical axial direction. A blade driving device having a driving member for moving on a plane; a frame for containing the driving member; a thin blade supporting unit that protrudes to the outside, along the direction of movement of the driving member, from a portion of the thickness of the frame, and that has an opening, around the optical axis, along the direction of thickness of the frame; and a blade member that is supported on the blade supporting unit, and that is moved by the driving member, to advance into the opening; wherein the outer peripheral edge of the frame has a recessed portion at the position at which the blade supporting unit protrudes.

Abstract: Because a thin blade is disposed in a space that has a thickness in the optical axial direction, which contains a coil and a magnet, when the blade is driven the blade tends to become unstable, making smooth operation of the thin blade difficult. A blade driving device has a driving member; a frame that is provided with a driving frame chamber that contains the driving member; a blade supporting unit that has an opening and that structures a blade chamber that is separate from the driving frame chamber; and a blade member that is contained in the blade chamber, and that is moved by the driving member to advance into the opening.

Abstract: In a first aspect of a present inventive subject matter, a method of forming a film includes turning a raw material containing at least a first chemical element and a second chemical element into atomized droplets; carrying the atomized droplets containing at least the first chemical element and the second chemical element by use of a carrier gas onto an object; and causing a reaction of the atomized droplets to form a film containing at least the first chemical element and the second chemical element on the object. The first chemical element is selected from among elements of Group 14 and elements of Group 15 of the periodic table. The second chemical element is selected from among d-block elements, elements of Group 13 and elements of Group 14 of the periodic table and different from the first chemical element.

Abstract: A head-mounted display optical system includes: a light deflecting element; a first lens group that has a positive refracting power as a whole, includes a plurality of rotationally symmetrical lenses and one free-form surface lens, and condenses the light incident through the light deflecting element; a second lens group that includes one lens having a positive refracting power that is arranged in a vicinity of an imaging position of an intermediate image formed by the first lens group; a third lens group that includes one rotationally symmetrical lens and one free-form surface lens; and a light reflecting element that has a free-form surface shape formed in a rotationally asymmetrical manner with respect to the optical axis and has a reflection surface that reflects the light having transmitted through the third lens group, in a sequence from a side of the light source side.

Abstract: A lens unit comprises a lens barrel, a pair of base plates, and iris blade, and a blade driving portion. The lens barrel holds a plurality of lenses, and has a first slit that extends in the circumferential direction. A pair of base plates each has an opening portion, and are stacked to structure a blade chamber, with a portion thereof protruding from the first slit, and is positioned so that the opening portions thereof are between the lenses. The iris blade is disposed in the blade chamber. A blade driving portion is secured to a portion of the pair of base plates, and drives the iris blade to open and close the opening portions in the iris blade.

Abstract: To enable achievement of a reduction in the thickness in a blade driving device that includes a driving member, and to enable a reduction in size of an installation area in a blade driving device that includes a driving member. The blade driving device 1 comprises a base member 2 that has an opening 2A, one or more blade members 3 that operate so as to advance into the opening 2A or withdraw from the opening 2A, and a driving member 4 that is supported on the base member 2 and that moves within a plane that is perpendicular to an optical axis that passes through the opening 2A, for driving the blade member, wherein the driving member 4 is disposed at a position that overlaps the blade member on the periphery of the opening 2A.

Abstract: To enable continuous operational control of the blade member with high resolution and good accuracy, even when achieving miniaturization and thickness reduction in a blade driving device, through enabling smooth movement of a movable member in a blade driving device. A blade driving device 1 comprises: a base member 2 that has an opening 2A; one or a plurality of blade members 3 that operate so as to advance into the opening 2A or withdraw from the opening 2A; a driving member 4 that moves within a plane that is perpendicular to the optical axis that passes through the opening 2A, to drive the blade member 3; and supporting members 7 that are provided between the base member 2 and the driving member 4, so as to provide sliding support or elastic support of the driving member 4 in a state that is separated from the base member 2.

Abstract: By using a lubricating oil composition containing (1) a base oil comprising a base oil A having a kinematic viscosity at 100° C. of 2 mm2/s or more and 7 mm2/s or less and a viscosity index of 120 or less, (2) at least one selected from an acrylate-based polymer and an olefin-based polymer each having a mass average molecular weight of 40,000 or less, and (3) a lubricating oil additive comprising a sulfur-based extreme pressure agent; and having a kinematic viscosity at 100° C. of more than 9.3 mm2/s and 12.5 mm2/s or less and a high temperature high shear viscosity at 150° C. of 2.9 mPa·s or more, a lubricating oil composition capable of making both a lowering in viscosity for fuel saving properties and fatigue resistance for improvement of fatigue life compatible with each other and also having excellent low-temperature viscosity properties is provided.

Abstract: A head-mounted display optical system includes: a light deflecting element that changes a propagating direction of light from a light source; a first lens group that has a positive refracting power as a whole, includes a plurality of rotationally symmetrical lenses formed in a rotationally symmetrical manner with respect to an optical axis and one free-form surface lens formed in a rotationally asymmetrical manner with respect to the optical axis, and condenses the light incident through the light deflecting element; a second lens group that includes one lens having a positive refracting power that is arranged in a vicinity of an imaging position of an intermediate image formed by the first lens group; a third lens group that includes one rotationally symmetrical lens formed in a rotationally symmetrical manner with respect to the optical axis and one free-form surface lens formed in a rotationally asymmetrical manner with respect to the optical axis; and a light reflecting element that has a free-form surfac

Abstract: A tilt correction unit includes: an inner frame, inside which an optical unit is held; an outer frame surrounding the inner frame, with a gap formed between the inner frame and the outer frame around an entire perimeter of the inner frame; an elastic part which is disposed between the outer frame and the inner frame and elastically supports the inner frame inside the outer frame; a rotational movement support part that connects a part of an outer peripheral surface of the inner frame to a part of an inner peripheral surface of the outer frame; and a drive unit that comprises a magnet and a coil disposed opposite each other with a gap therebetween, wherein the inner frame is driven by the drive unit and rotates about the rotational support part, in a plane perpendicular to the optical axis of the optical unit.

Abstract: A lens driving device includes a base member, a movable member that is disposed at the base member and moves in a plane that is orthogonal to an optical axis, a first driving portion that moves the movable member in a direction that is orthogonal to the optical axis in accordance with image shake, a lens frame that is mounted to the movable member and moves in a direction of the optical axis, a second driving portion that moves the lens frame in the direction of the optical axis and includes a first magnet that is secured to the movable member and a first coil that is secured to the lens frame, and a Hall element that is disposed so as to oppose the first magnet in the direction of the optical axis and detects a change in a magnetic field of the first magnet.

Abstract: A lubricant oil composition containing an organic molybdenum compound which contains at least either one of a nitrogen (N) atom and an oxygen (O) atom in the molecule thereof and which may optionally contain a sulfur (S) atom, wherein a sulfur content of the organic molybdenum compound is 0.5% by mass or less based on the organic molybdenum compound. The lubricant oil composition, when used as a lubricant oil for a low-friction sliding material, exhibits an extremely low friction coefficient. A sliding mechanism having excellent low-friction property and wear resistance can be provided by combining the lubricant oil composition and a sliding member having a DLC film on its sliding face.

Abstract: A tilt correction unit includes: an inner frame, inside which an optical unit is held; an outer frame surrounding the inner frame, with a gap formed between the inner frame and the outer frame around an entire perimeter of the inner frame; an elastic part which is disposed between the outer frame and the inner frame and elastically supports the inner frame inside the outer frame; a rotational movement support part that connects a part of an outer peripheral surface of the inner frame to a part of an inner peripheral surface of the outer frame; and a drive unit that comprises a magnet and a coil disposed opposite each other with a gap therebetween, wherein the inner frame is driven by the drive unit and rotates about the rotational support part, in a plane perpendicular to the optical axis of the optical unit.

Abstract: A base plate is elongate and an opening for a photographing optical path is configured close to one end in its longitudinal direction. A shutter blade is rotatably mounted to the blade-mounting shank of the base plate so that when the opening is fully opened, a part covering the opening is stored in the region of the base plate in the longitudinal direction. Another shutter blade is slidably mounted to the blade-mounting shank of the base plate so that when the opening is fully opened, a part covering the opening is stored in the region of the base plate in its lateral direction. Each of the shutter blades is constructed so that the reciprocating operation is performed by the driving pin of an electromagnetic actuator to open and to close the opening.

Abstract: A blade driving device for use in cameras that includes a mechanical shutter blade that openably and closably disposed in front of a CCD, and is capable of blocking light passing through an exposure aperture. The blade driving device also includes a motor that drives the shutter blade, and a control means that drive-controls the motor. In this blade driving device, photography is performed such that the storage of an electric charge starts in the CCD and the closing motion of the shutter blade is completed. Opening energization is applied to the motor in order to allow the shutter blade to pre-perform an opening motion before performing a closing motion whenever a still image is photographed. Thus, the shutter blade always reaches an opened state prior to photography even if the shutter blade is closed without permission by receiving an impulsive force from the outside because of, for example, being dropped. Therefore, photography can be reliably performed.

Abstract: A digital camera includes at least one shutter blade in which opening and closing operations of an exposure aperture are performed using an electromagnetic actuator. The digital camera also includes an image sensor converting light from an object into image information, and an image processing circuit which stores the image information converted by the image sensor in an image memory so that the image information can be fetched and such that the image processing circuit has terminals for connecting the image processing circuit to an estimation display device. Further, the digital camera includes an exposure control circuit including a reference table controlling the amount of light exposure and at least one correction table allowing the amount of light exposure controlled by the reference table to be corrected, and includes a driving circuit driving the electromagnetic actuator according to an output signal of the exposure control circuit.

Abstract: A base plate is elongate and an opening for a photographing optical path is configured close to one end in its longitudinal direction. A shutter blade is rotatably mounted to the blade-mounting shank of the base plate so that when the opening is fully opened, a part covering the opening is stored in the region of the base plate in the longitudinal direction. Another shutter blade is slidably mounted to the blade-mounting shank of the base plate so that when the opening is fully opened, a part covering the opening is stored in the region of the base plate in its lateral direction. Each of the shutter blades is constructed so that the reciprocating operation is performed by the driving pin of an electromagnetic actuator to open and to close the opening.