Abstract: There is provided an image blur correction device including: a correction optical element; a first movable frame; a second movable frame; a fixed frame; a first main guide shaft and a first auxiliary guide shaft; a second main guide shaft and a second auxiliary guide shaft; a first driving part; and a second driving part. The first auxiliary guide shaft is shorter than the first main guide shaft and the second driving part is placed between the first auxiliary guide shaft and the correction optical element. The second auxiliary guide shaft is shorter than the second main guide shaft and the first driving part is placed between the second auxiliary guide shaft and the correction optical element.

Abstract: A lens includes a front group including a plurality of lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.

Abstract: An object is to provide an electronic component installation apparatus capable of efficiently doing component installation work for which plural substrates including a double-sided mounting substrate are targeted.

Abstract: There is provided an image blur correction device including: a correction lens; a first movable frame; a second movable frame; a fixed frame; a first main guide shaft and a first auxiliary guide shaft; a second main guide shaft and a second auxiliary guide shaft; a first driving part; and a second driving part. The first auxiliary guide shaft is shorter than the first main guide shaft and the second driving part is placed between the first auxiliary guide shaft and the correction lens. The second auxiliary guide shaft is shorter than the second main guide shaft and the first driving part is placed between the second auxiliary guide shaft and the correction lens.

Abstract: A tape feeder feeds electronic components by advancing a tape intermittently. The tape feeder includes a motor controller for controlling a motor, which rotatively drives a sprocket to advance the tape, and a communication unit for receiving a control signal from a control unit of an electronic component mounting apparatus and transmitting a control parameter such as a rotating speed, an amount of rotation, and acceleration and deceleration pattern to the motor controller. The tape feeder has such a structure that a tape advancing speed and an amount of tape advancement are easily changeable according to a type of the electronic components by changing the control parameter of the rotating speed and the amount of rotation of the motor.

Abstract: A lens includes a front group including a plurality of lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.

Abstract: A zoom lens includes: a front group including a plurality of movable lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.

Abstract: A lens driving mechanism eccentrically drives at least one lens or lens subunit, hereunder called a correcting lens, in a lens system constituting a taking lens unit in a plane perpendicular to an optical axis direction, and includes a movable frame holding the correcting lens, two coils fixed at a lens barrel where the taking lens unit is disposed, and magnetic circuit formation members generating a magnetic field crossing the coils that are disposed around the correcting lens when viewed in the optical axis direction of the taking lens unit. The members include at least two magnets and yokes disposed at each of the two coils for generating movement forces in different directions perpendicular to the optical axis. The yokes oppose the respective magnets. Either the magnets or the yokes are held by the movable frame, and the other of the magnets and yokes are secured to the lens barrel.

Abstract: A zoom lens including a varifocal lens unit having a plurality of movable lens groups, and a prism disposed on an image side of the varifocal lens unit. The prism has an incident plane on which a light flux from the varifocal lens unit enters, and an exit plane from which the light flux is emitted toward an image plane, and is configured such that the incident plane or the exit plane or both planes can be inclined with respect to an optical axis, whereby a field of view is shifted by a predetermined amount by inclining the plane.

Abstract: In a linear driving mechanism for electronic component mounting apparatus that performs mounting operation for mounting an electronic component on a substrate and linearly drives a transfer beam 8 in a Y direction using a linear motor, an object to be driven and the linear motor are disposed such that a position P of thrust generated by the linear motor for driving the transfer beam 8 in the Y direction approximately corresponds to a central position D1 of inertial resistance of the object to be driven comprising movable portions such as transfer beam 8, loading head 9, and transfer plate 12. Accordingly, twisting moment applied to the transfer beam 8 due to inertial force is eliminated in acceleration/deceleration, and loading position accuracy is ensured and a component life can be lengthened.

Abstract: There is provided an image blur correction device including: a correction lens; a first movable frame; a second movable frame; a fixed frame; a first main guide shaft and a first auxiliary guide shaft; a second main guide shaft and a second auxiliary guide shaft; a first driving part; and a second driving part. The first auxiliary guide shaft is shorter than the first main guide shaft and the second driving part is placed between the first auxiliary guide shaft and the correction lens. The second auxiliary guide shaft is shorter than the second main guide shaft and the first driving part is placed between the second auxiliary guide shaft and the correction lens.

Abstract: A zoom lens includes a varifocal lens unit including a plurality of movable lens groups, and a prism disposed on an image side of the varifocal lens unit. The prism has an incident plane into which a light flux from the varifocal lens unit enters, and an exit plane from which the light flux is emitted toward an image plane, the exit plane capable of being inclined with respect to an optical axis, the exit plane inclined in accordance with a following conditional expression “?=?f×?/[Bf(n?1)]”, where ?: an angle formed by a normal of the exit plane and the optical axis, f: a focus distance of a whole lens system, ?: a turning angle of a lens system, Bf: a distance from the exit plane of the prism to the image plane along the optical axis, and n: a refraction index of the prism.

Abstract: A zoom lens includes: a front group including a plurality of movable lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.

Abstract: A lens device is provided. The lens device includes: an image stabilizer having a lens holding frame which holds a correcting lens, a first driver which moves the lens holding frame in a first direction perpendicular to an optical axis direction of the correcting lens, and a second driver which moves the lens holding frame in a second direction perpendicular to the optical axis direction and the first direction; and a lens barrel in which the image stabilizer is installed. The optical axis of the correcting lens held by the image stabilizer is displaced from the center of the lens barrel, and the image stabilizer is arranged such that a direction of thrust generated by each of the first and second drivers forms an angle of approximately 45° with a line connecting the optical axis of the correcting lens and the center of the lens barrel.

Abstract: A zoom lens including a varifocal lens unit having a plurality of movable lens groups, and a prism disposed on an image side of the varifocal lens unit. The prism has an incident plane on which a light flux from the varifocal lens unit enters, and an exit plane from which the light flux is emitted toward an image plane, and is configured such that the incident plane or the exit plane or both planes can be inclined with respect to an optical axis, whereby a field of view is shifted by a predetermined amount by inclining the plane.

Abstract: A zoom lens includes a varifocal lens unit including a plurality of movable lens groups, and a prism disposed on an image side of the varifocal lens unit. The prism has an incident plane into which a light flux from the varifocal lens unit enters, and an exit plane from which the light flux is emitted toward an image plane, the exit plane capable of being inclined with respect to an optical axis, the exit plane inclined in accordance with a following conditional expression “?=?f×?/[Bf(n?1)]”, where ?: an angle formed by a normal of the exit plane and the optical axis, f: a focus distance of a whole lens system, ?: a turning angle of a lens system, Bf: a distance from the exit plane of the prism to the image plane along the optical axis, and n: a refraction index of the prism.

Abstract: A lens driving mechanism for eccentrically driving at least one lens or lens subunit, hereunder called a correcting lens, in a lens system constituting a taking lens unit in a plane perpendicular to an optical axis direction includes an electro-mechanical conversion element and a link mechanism. The electro-mechanical conversion element is fixedly disposed at a lens barrel where the taking lens unit is disposed, and is mechanically deformed by an application of a voltage. The link mechanism increases the mechanical deformation of the electro-mechanical conversion element and transmits the increased mechanical deformation to the correcting lens, and is disposed around the correcting lens at the outer side of an effective diameter of the correcting lens when viewed in the optical axis direction.

Abstract: A lens driving mechanism eccentrically drives at least one lens or lens subunit, hereunder called a correcting lens, in a lens system constituting a taking lens unit in a plane perpendicular to an optical axis direction, and includes a movable frame holding the correcting lens, two coils fixed at a lens barrel where the taking lens unit is disposed, and magnetic circuit formation members generating a magnetic field crossing the coils that are disposed around the correcting lens when viewed in the optical axis direction of the taking lens unit. The members include at least two magnets and yokes disposed at each of the two coils for generating movement forces in different directions perpendicular to the optical axis. The yokes oppose the respective magnets. Either the magnets or the yokes are held by the movable frame, and the other of the magnets and yokes are secured to the lens barrel.

Abstract: A mounting head unit for an electronic component for making a pick-up operation of the electronic component and loading operation thereof is removably attached to a head mounting bracket of an electronic component mounting device. Each mounting head unit is provided with a control board for controlling the a mounting mechanism including a plurality of unit mounting heads each equipped with an adsorption nozzle for holding the electronic component. In the mounting operation, on the basis of the operation command from a main unit control section for controlling the entire operation of the electronic component mounting device, the control board controls the operation of each of the unit mounting heads. In this way, the replacement of wirings in replacing the mounting head can be easily made and the time delay in signal processing can be removed to realize the high speed operation.

Abstract: In a linear driving mechanism which is arranged in electronic component mounting apparatus that performs mounting operation for mounting an electronic component on a substrate and linearly drives a transfer beam 8 in a Y direction using a linear motor, an object to be driven and the linear motor are disposed such that a position P of thrust generated by the linear motor for driving the transfer beam 8 in the Y direction approximately corresponds to a central position D1 of inertial resistance of the object to be driven comprising movable portions such as transfer beam 8, loading head 9, and transfer plate 12. Accordingly, twisting moment applied to the transfer beam 8 due to inertial force is eliminated in acceleration/deceleration, and loading position accuracy is ensured and a component life can be lengthened.