Abstract: An actuator (1) is provided with: a movable part (120); a support part (110, 210) which supports the movable part; and a plurality of torsion bars (230) (i) each of which connects the movable part and the support part along a long direction such that the movable part is capable of swinging around a rotational axis which is along the long direction and (ii) which are arranged along a short direction; the farther each torsion bar is from the rotational axis, the smaller a spring constant of each torsion bar is.

Abstract: A driving apparatus (101) is provided with: a first base part (110); a second base part (120); an elastic part (210) configured to couple the first base part with the second base part; a coil (300) disposed on the first base part; a first magnet (710) disposed on one side of the coil; a second magnet (720) disposed on an opposite side of the first magnet as viewed from the coil; a first middle yoke (810) provided on a surface of the first magnet opposed to the coil; and a second middle yoke (820) provided on a surface of the second magnet opposed to the coil. In particular, the first magnet is smaller than the second magnet. The first middle yoke is located closer to the coil than the second middle yoke is.

Abstract: An actuator (1) has a movable portion (120); a supporting portion (210, 110); and a torsion bar (230), a rib (123) is formed on a surface of the movable portion, the movable portion has a protruding portion (122) which protrudes in a direction along the surface and protrudes toward an outside of the movable portion, at least one portion of the rib is formed on the surface to extend on the protruding portion.

Abstract: An optical deflector includes a mirror with a reflective layer on its front-side surface, a first support frame adapted to support the mirror, at least one torsion bar coupled between the first support frame and the mirror; and a reinforcement rib provided on a rear-side surface of the mirror. The torsion bar has a pair of protruded portions arranged symmetrically with respect to the torsion bar in the vicinity of a coupling portion between the torsion bar and the mirror. The reinforcement rib has a central portion and a pair of extension portions extended symmetrically from the central portion and coupled to the protruded portions, respectively, of the torsion bar.

Abstract: A driving apparatus (101) is provided with: a first base part (110); a second base part (120); an elastic part (210) configured to couple the first base part with the second base part; a coil (300) disposed on the first base part; a first magnet (710) disposed on one side of the coil; a second magnet (720) disposed on an opposite side of the first magnet as viewed from the coil; a first middle yoke (810) provided on a surface of the first magnet opposed to the coil; and a second middle yoke (820) provided on a surface of the second magnet opposed to the coil. In particular, the first magnet is smaller than the second magnet. The first middle yoke is located closer to the coil than the second middle yoke is.

Abstract: An optical deflector includes a mirror with a reflective layer on its front-side surface, a first support frame adapted to support the mirror, at least one torsion bar coupled between the first support frame and the mirror; and a reinforcement rib provided on a rear-side surface of the mirror. The torsion bar has a pair of protruded portions arranged symmetrically with respect to the torsion bar in the vicinity of a coupling portion between the torsion bar and the mirror. The reinforcement rib has a central portion and a pair of extension portions extended symmetrically from the central portion and coupled to the protruded portions, respectively, of the torsion bar.

Abstract: A driving apparatus (101) is provided with: a first base part (110); a second base part (120); an elastic part (210) configured to couple the first base part with the second base part; and a driven part (400) supported by the second base part in a drivable aspect. According to such a driving apparatus, for example, if a driving force is applied to the first base part, the driving force is transmitted to the second base part via the elastic part. Thus, the driven part supported by the second base part can be preferably driven.

Abstract: An actuator (1) has a movable portion (120); a supporting portion (210, 110); and a torsion bar (230), a rib (123) is formed on a surface of the movable portion, the movable portion has a protruding portion (122) which protrudes in a direction along the surface and protrudes toward an outside of the movable portion, at least one portion of the rib is formed on the surface to extend on the protruding portion

Abstract: An actuator (1) is provided with: a movable part (120); a support part (110, 210) which supports the movable part; and a plurality of torsion bars (230) (i) each of which connects the movable part and the support part along a long direction such that the movable part is capable of swinging around a rotational axis which is along the long direction and (ii) which are arranged along a short direction; the farther each torsion bar is from the rotational axis, the smaller a spring constant of each torsion bar is.

Abstract: An infrared ray detection element has a plurality of pyroelectric layers that are laminated in a same direction as an incident direction of infrared rays, one or more intermediate electrode layers laminated between the plurality of pyroelectric layers; a front side electrode layer that is laminated on a front side of the pyroelectric layer positioned at a top side; and a back side electrode layer that is laminated on a back side of the pyroelectric layer positioned at a bottom side. The two pyroelectric layers adjacent in a front and back direction are performed with a polarization process such that polarization directions thereof are set to reverse directions to each other.

Abstract: A MEMS sensor has a frame portion 2 formed in a rectangular frame shape and a convexoconcave shaped membrane 3 that is constructed within the frame portion 2, the convexoconcave shape of the membrane 3 extend to two direction where a concave and a convex are orthogonal to each other, and square concave portions 3a and square convex portions 3b are disposed in a web shape within a whole in-plane area of the membrane 3.

Abstract: A MEMS sensor has a membrane 3 in a polygon released via a support portion 2, and the membrane 3 has a reinforcement rib portion 6 made up of a plurality of radially extending rib portions 6a and a plurality of divisional membranes 7 constructed between adjacent two rib portions 6a, 6a and formed in a polygon with the two rib portions 6a, 6a as two sides.

Abstract: A sensor array has a plurality of sensor elements, each of which has a rectangular frame shaped frame portion formed by connecting a plurality of frame pieces and a membrane that is constructed within the frame portion and has sensitivity as sensor, and the plurality of sensor elements are disposed in a planar shape in a state that the frame pieces in adjacent sensor elements are shared. The membrane has covexoconcave shape in which rectangular concave portions and rectangular convex portions are disposed in a web shape.

Abstract: A recording/reproducing apparatus (100) is provided with: a first substrate (41) on which a recording medium (43) is mounted; and a second substrate (21) to which a recording/reproducing head (23), which performs information recording and information reproduction on the recording/reproducing medium is fixed, wherein the second substrate is relatively displaced in a predetermined direction substantially parallel to the first substrate with respect to the first substrate, a particulate (30) is placed in a gap between the first substrate and the second substrate, the particulate can be displaced with displacement of the second substrate, the particulate has a substantially circular cross section in a direction that the second substrate is displaced when the second substrate is displaced.

Abstract: A driving apparatus (1) is provided with: a fixed part (11) having a fixed-part plane (12); and a driven part (13) having a driven-part plane (14), which faces the fixed-part plane, and driven in a direction substantially parallel to the fixed-part plane, a liquid lubricant (30) is between the fixed-portion plane and the driven-part plane, the driven-part plane faces the fixed-part plane such that the driven-part plane is substantially parallel to the fixed-part plane.

Abstract: An infrared ray sensor and a method of fabricating the same is provided to increase detection sensitivity and to be easily fabricated with high yield rate. Provided herein is an infrared ray sensor having a frame-shaped substrate section formed in a square frame shape, a projecting base material section formed inside the frame-shaped substrate section and elongating to an incident direction of an infrared ray, and an infrared ray detection section provided on at least an upper lateral surface of the projecting base material section. The projecting base material section is made up of a plurality of rib-like element base material sections having a plurality of vertical base material sections and horizontal base material sections combined in a lattice shape.

Abstract: A first thermal buffer layer and a second thermal buffer layer are arranged between a recording medium and an actuator structure. The heat conductivity of the first thermal buffer layer is set low and the heat conductivity of the second thermal buffer layer is set high. Most of the heat generated from a coil wiring of the actuator structure is blocked by the first thermal buffer layer, and heat leaked from the first thermal buffer layer is diffused by the second thermal buffer layer. Temperature distribution on the recording medium is made uniform, and thus, a configuration wherein the recording medium and the actuator structure are placed one over another can be provided, information reading accuracy or information recording stability can be improved and the sizes of an information storage device can be reduced.

Abstract: A recording/reproducing apparatus (100) is provided with: a first substrate (41) on which a recording medium (43) is mounted; and a second substrate (21) to which a recording/reproducing head (23), which performs information recording and information reproduction on the recording/reproducing medium is fixed, wherein the second substrate is relatively displaced in a predetermined direction substantially parallel to the first substrate with respect to the first substrate, a particulate (30) is placed in a gap between the first substrate and the second substrate, the particulate can be displaced with displacement of the second substrate, the particulate has a substantially circular cross section in a direction that the second substrate is displaced when the second substrate is displaced.

Abstract: A driving apparatus (1) is provided with: a fixed part (11) having a fixed-part plane (12); and a driven part (13) having a driven-part plane (14), which faces the fixed-part plane, and driven in a direction substantially parallel to the fixed-part plane, a liquid lubricant (30) is between the fixed-portion plane and the driven-part plane, the driven-part plane faces the fixed-part plane such that the driven-part plane is substantially parallel to the fixed-part plane.

Abstract: A first thermal buffer layer and a second thermal buffer layer are arranged between a recording medium and an actuator structure. The heat conductivity of the first thermal buffer layer is set low and the heat conductivity of the second thermal buffer layer is set high. Most of the heat generated from a coil wiring of the actuator structure is blocked by the first thermal buffer layer, and heat leaked from the first thermal buffer layer is diffused by the second thermal buffer layer. Temperature distribution on the recording medium is made uniform, and thus, a configuration wherein the recording medium and the actuator structure are placed one over another can be provided, information reading accuracy or information recording stability can be improved and the sizes of an information storage device can be reduced.