Abstract: A projection display unit (1) includes a body (10) and an invisible light application unit (30). The body (10) includes a projection optical system and a detection optical system. The projection optical system projects an image onto a projection surface (110). The detection optical system acquires an imaging signal based on invisible light. The invisible light application unit (30) applies the invisible light along a surface in vicinity of the projection surface while being placed on a surface that is an extension of the projection surface. The body (10) is movable with respect to an output opening (31) of the invisible light application unit, and a position of the body is adjustable with respect to the projection surface.

Abstract: A projection display unit (1) includes a body (10) and an invisible light application unit (30). The body (10) includes a projection optical system and a detection optical system. The projection optical system projects an image onto a projection surface (110). The detection optical system acquires an imaging signal based on invisible light. The invisible light application unit (30) applies the invisible light along a surface in vicinity of the projection surface while being placed on a surface that is an extension of the projection surface. The body (10) is movable with respect to an output opening (31) of the invisible light application unit, and a position of the body is adjustable with respect to the projection surface.

Abstract: A projection display unit (1) includes a body (10) and an invisible light application unit (30). The body (10) includes a projection optical system and a detection optical system. The projection optical system projects an image onto a projection surface (110). The detection optical system acquires an imaging signal based on invisible light. The invisible light application unit (30) applies the invisible light along a surface in vicinity of the projection surface while being placed on a surface that is an extension of the projection surface. The body (10) is movable with respect to an output opening (31) of the invisible light application unit, and a position of the body is adjustable with respect to the projection surface.

Abstract: A projection display unit (1) includes a body (10) and an invisible light application unit (30). The body (10) includes a projection optical system and a detection optical system. The projection optical system projects an image onto a projection surface (110). The detection optical system acquires an imaging signal based on invisible light. The invisible light application unit (30) applies the invisible light along a surface in vicinity of the projection surface while being placed on a surface that is an extension of the projection surface. The body (10) is movable with respect to an output opening (31) of the invisible light application unit, and a position of the body is adjustable with respect to the projection surface.

Abstract: An optical pickup includes: a base; a lens holder that is provided on the base to hold an objective lens which collects a light beam emitted from a light source and applies it onto an optical disk; a supporting plate that is provided on the base and spaced from the lens holder in a direction orthogonal to a focusing direction in parallel with a plane including the focusing direction and a tracking direction; and a plurality of suspension wires that is provided over the lens holder and the supporting plate to movably support the lens holder in the focusing direction and the tracking direction with respect to the supporting plate. The supporting plate has flexibility. A damping member is provided on the mounting plate. When the supporting plate is bent in the longitudinal direction of the suspension wire, the damping member is deformed to absorb vibrations of the lens holder.

Abstract: A head actuator supports a head slider and designed to swing around a support shaft over first and second swinging ranges adjacent each other. A restraint member is designed to restrain the swinging movement of the head actuator from separating from the first swinging range toward the second swinging range. A restriction member is designed to restrict the swinging movement of the head actuator from separating from the second swinging range toward the first swinging range. The second swinging range is excluded from the actual swinging range of the head actuator when the restraint member operates. The swinging range of the head actuator can thus be reduced or narrowed. Likewise, the first swinging range is excluded from the actual swinging range of the head actuator when the restriction member operates. The swinging range of the head actuator can thus be reduced or narrowed.

Abstract: A ramp member is supported on a flying slider in a load/unload mechanism of a recording medium drive. The flying slider receives a lift at its air bearing surface based on airflow generated along the moving recording medium. The flying slider flies above the recording medium. The flying height of the flying slider can be controlled with a higher accuracy in the same manner as a flying head slider utilized to read and write data from and into the recording medium. The slope of the ramp member on the flying slider can accordingly be kept at a predetermined level above the recording medium with a higher accuracy. Even if the extent of the slope is reduced, the load bar is allowed to reliably contact the slope. This leads to expansion of the data zone on the recording medium.

Abstract: A head actuator supports a head slider and designed to swing around a support shaft over first and second swinging ranges adjacent each other. A restraint member is designed to restrain the swinging movement of the head actuator from separating from the first swinging range toward the second swinging range. A restriction member is designed to restrict the swinging movement of the head actuator from separating from the second swinging range toward the first swinging range. The second swinging range is excluded from the actual swinging range of the head actuator when the restraint member operates. The swinging range of the head actuator can thus be reduced or narrowed. Likewise, the first swinging range is excluded from the actual swinging range of the head actuator when the restriction member operates. The swinging range of the head actuator can thus be reduced or narrowed.

Abstract: A ramp member is supported on a flying slider in a load/unload mechanism of a recording medium drive. The flying slider receives a lift at its air bearing surface based on airflow generated along the moving recording medium. The flying slider flies above the recording medium. The flying height of the flying slider can be controlled with a higher accuracy in the same manner as a flying head slider utilized to read and write data from and into the recording medium. The slope of the ramp member on the flying slider can accordingly be kept at a predetermined level above the recording medium with a higher accuracy. Even if the extent of the slope is reduced, the load bar is allowed to reliably contact the slope. This leads to expansion of the data zone on the recording medium.

Abstract: The magnetic disk device includes magnetic disks, magnetic head arms and wind shield members arranged above and below the magnetic disks, respectively, in a region adjacent to the magnetic head arms. The wind shield members are arranged on the rotationally upstream side of the magnetic head arms, and the air flow generated by the rotation of the magnetic disks and impinging against the magnetic head arms is guided to the outside of the magnetic disks.

Abstract: The magnetic disk device includes magnetic disks, magnetic head arms and wind shield members arranged above and below the magnetic disks 1, respectively, in a region adjacent to the magnetic head arms. The wind shield members are arranged on the rotationally upstream side of the magnetic head arms, and the air flow generated by the rotation of the magnetic disks and impinging against the magnetic head arms is guided to the outside of the magnetic disks.