Abstract: A library device includes: a housing for accommodating a magazine to be able to be put in and out, wherein the magazine has slots for accommodating recording medium cartridges to be able to be put in and out; an accessor for conveying the recording medium cartridge ejected from the slot to the magnetic tape drive; and a cartridge jump-out preventing mechanism for preventing the recording medium cartridge from jumping out to a moving path of the accessor. The cartridge jump-out preventing mechanism includes: an elastic pushing mechanism which can push the recording medium cartridge into the slot by using an elastic force when the magazine is inserted into the housing; and a latch mechanism which can hold the recording medium cartridge so that the recording medium cartridge does not jump out of the slot when the recording medium cartridge is completely accommodated in the slot.

Abstract: Disclosed are an information system etc.

Abstract: A library device includes: a housing for accommodating a magazine to be able to be put in and out, wherein the magazine has slots for accommodating recording medium cartridges to be able to be put in and out; an accessor for conveying the recording medium cartridge ejected from the slot to the magnetic tape drive; and a cartridge jump-out preventing mechanism for preventing the recording medium cartridge from jumping out to a moving path of the accessor. The cartridge jump-out preventing mechanism includes: an elastic pushing mechanism which can push the recording medium cartridge into the slot by using an elastic force when the magazine is inserted into the housing; and a latch mechanism which can hold the recording medium cartridge so that the recording medium cartridge does not jump out of the slot when the recording medium cartridge is completely accommodated in the slot.

Abstract: A sensor device includes: a member that has an aperture facing a target measuring position through which a target to be measured passes; a sensor that is provided in an opposing relation to the target measuring position, and that measures a physical quantity of the target at a sensor surface facing the aperture; and a moving member that reciprocates a movement in a predetermined direction, and includes: a cleaning unit that cleans the sensor surface by contacting the sensor surface while the moving member moves to at least one of an outward movement and a return reciprocal movement; an applying portion that applies to the moving member a force in one direction of the reciprocation movement; and a manipulation portion that is moved by an operator against the force applied by the applying portion in an direction opposite to that of a direction of the force.

Abstract: A sensor device includes: a member that has an aperture facing a target measuring position through which a target to be measured passes; a sensor that is provided in an opposing relation to the target measuring position, and that measures a physical quantity of the target at a sensor surface facing the aperture; and a moving member that reciprocates a movement in a predetermined direction, and includes: a cleaning unit that cleans the sensor surface by contacting the sensor surface while the moving member moves to at least one of an outward movement and a return reciprocal movement; an applying portion that applies to the moving member a force in one direction of the reciprocation movement; and a manipulation portion that is moved by an operator against the force applied by the applying portion in an direction opposite to that of a direction of the force.

Abstract: It is an object of the present invention to provide a photopolymer-based volume phase hologram recording material that can record/reproduce image information with excellent properties in terms of bit error rate (BER) or signal to noise ratio (SNR), which expresses the ratio of digital signal to noise, and that is suitable for application to holographic information recording, etc., and to provide a volume phase hologram recorded material employing the material. In accordance with the present invention, it is possible to record/reproduce a volume phase hologram with reduced noise, etc. in data hologram recording by a produced polymer that has been polymerized by means of interference fringes generated by interference between information light and reference light, the produced polymer having a weight-average molecular weight of 1,000 to 3,000,000.

Abstract: A volume hologram recording material is provided that has high sensitivity, good storage stability after recording, and a large interference fringe refractive index difference, the material being used for forming a volume hologram recording film desirable as a data recording system. A volume hologram recording medium comprising same is also provided. The hologram recording material comprises as constituents a polymer matrix having a three-dimensional crosslinking structure, a polymerizable monomer, and a tertiary amine compound, and the polymer matrix is formed in the presence of the polymerizable monomer by a polymerization reaction that is different from a polymerization reaction of the polymerizable monomer.

Abstract: A volume hologram recording material is provided that has high sensitivity, good storage stability after recording, and a large interference fringe refractive index difference, the material being used for forming a volume hologram recording film desirable as a data recording system. A volume hologram recording medium comprising same is also provided. The volume hologram recording material is a polymer matrix having a three-dimensional crosslinking structure having a plurality of reactive groups, the polymer matrix being capable of recording, by means of refractive index difference, interference fringes that result from the interference of coherent light, the material not having a polymerizable monomer as a constituent.