Fuji Photo Film Company, Limited

Fujifilm Corporation

Fujitsu Telecom Networks Limited

Katsumi Shimada

Masaru Noguchi

Yasunori Ohta

Naoto Iwakiri

Kouichi Kitano

Takahiro Iwamoto

Kentaro Noma

Keita Watanabe

Shou Shimizukawa

Yutaka Yoshida

Yusuke Kitagawa

Hiromi Ishikawa

Kazuhiro Tsujita

Noriaki Ida

Sumihiro Nishihata

Osamu Kuroda

Minako Igura

A radiological image-capturing device includes: a first read control section that executes a first read mode in which electric signals stored in a plurality of pixels are read out simultaneously in units of a plurality of rows; and an emission-start determining section that determines that the emission of radiation from a radiation source onto an image-capturing panel has started when the values of the electric signals read by the first read control section have become greater than an arbitrarily settable threshold. If it is determined by the emission-start determining section that the emission of the radiation has started, the first read control section terminates the reading of the electric signals, and thereby brings the image-capturing panel into an exposure state.

Radiological image-capturing device, radiological image-capturing system, radiological image-capturing method, and program

A radiographic apparatus includes an image acquisition controller for controlling operation of more than one electronic cassette. For signal communication between the image acquisition controller and the electronic cassettes, each electronic cassette may be connected to a communication cable. These communication cables are connected to a switching hub that intermediates communication between the electronic cassettes and the image acquisition controller. The radiographic apparatus includes multiple power supplies corresponding in number to the electronic cassettes. Each electronic cassette may be connected to one power supply through a power cable separately from the communication cable.

Radiographic apparatus

A radiological image-capturing device includes: a first read control section that executes a first read mode in which electric signals stored in a plurality of pixels are read out simultaneously in units of a plurality of rows; and an emission-start determining section that determines that the emission of radiation from a radiation source onto an image-capturing panel has started when the values of the electric signals read by the first read control section have become greater than an arbitrarily settable threshold. If it is determined by the emission-start determining section that the emission of said radiation has started, the first read control section terminates the reading of the electric signals, and thereby brings the image-capturing panel into an exposure state.

A layer 2 switch (L2SW) includes (i) a learned information management unit for recording learned information that associates a receiving port, an address of another L2SW, and a source address specified in the original communication frame, when an encapsulated frame, in which a communication frame has been encapsulated by data containing the address of the another L2SW, is received from the backbone network and (ii) a status monitoring unit. The learned information management unit determines the update extent of the learned information, in accordance with a check result of the connection status and thus the occurrence of flooding transfer to a backbone networks side is suppressed.

Relay apparatus for communication frames and relay method

A semiconductor laser device produces a laser beam, which is adapted to be expanded into a linear laser beam for use as stimulating rays for an image read-out operation for reading out a radiation image having been stored on a stimulable phosphor sheet. The semiconductor laser device comprises a semiconductor laser chip for producing the laser beam, a package for accommodating the semiconductor laser chip therein, and a radiating window, which is fitted to the package and allows the laser beam having been produced by the semiconductor laser chip to pass therethrough. A surface of the radiating window is coated with an anti-reflection film having a reflectivity of at most 1.0% with respect to a wavelength of the laser beam having been produced by the semiconductor laser chip.

Semiconductor laser device and radiation image read-out method and apparatus

A quantity of imparted erasing energy, which is to be imparted to a stimulable phosphor sheet in order to erase residual radiation energy remaining on the stimulable phosphor sheet, is adjusted by use of an image recording sensitivity in a next radiation image recording operation, which is to be performed on the stimulable phosphor sheet, and an energy level of the residual radiation energy remaining on the stimulable phosphor sheet. The quantity of the imparted erasing energy is adjusted such that, as the image recording sensitivity in the next radiation image recording operation, which is to be performed on the stimulable phosphor sheet, becomes high, and as the energy level of the residual radiation energy remaining on the stimulable phosphor sheet becomes high, the quantity of the imparted erasing energy is set to be large.

Stimulable phosphor sheet erasing method and apparatus

Disclosed herein is an optical scanner having a light source, a collimator lens, a first image-forming optics system with a cylindrical lens, and a second image-forming optics system with a rotating polygon mirror and an f&thgr; lens. In the optical scanner, a light beam is incident obliquely on the rotating polygon mirror with respect to both a horizontal scanning direction and a vertical scanning direction. The cylindrical lens is disposed so that its generating line is substantially parallel with a plane perpendicular to the axis of rotation of the rotating polygon mirror.

Optical scanner

An imaging optical system for a light beam scanning system for causing a light bundle deflected by a deflector to form an image on a predetermined surface to be scanned and causing the image of the light bundle to scan the surface at a constant speed is provided with an anamorphic lens for compensating for tilt of the deflecting surface of the deflector. The imaging optical system satisfies formula

Imaging optical system for light beam scanning system

In a light beam scanning system, a light beam deflected by a deflector is focused to form an image on a surface and the image is caused to scan the surface at a constant speed. A tilt correcting optical system for compensating for surface tilt in the deflector includes an optical element which is disposed between the deflector and the surface to be scanned and reflects the light beam, deflected by the deflector, to converge on the surface in a direction perpendicular to the direction in which the image scans the surface. The optical element is an in-mirror lens which has a refracting surface at its front face and has a reflecting surface at its rear end face. The refracting surface and the reflecting surfaces are both cylindrical and concave toward the deflector and the radius of curvature of the refracting surface is smaller than that of the reflecting surface.

Tilt correcting optical system

An optical condenser system for a light scanning apparatus includes a first lens which is a single lens formed of plastic and a second lens which is a plano-convex lens formed of glass and convex toward the scanning surface. The first lens is concave toward a deflector of the light scanning apparatus and each side of the first lens is an aspheric surface defined by the following formula (6). The first and second lens satisfying the following formulae (1) to (5)

Optical condenser system for light scanning apparatus

An f.theta. lens includes first and second lens groups arranged in this order from the entrance pupil side. The first lens group consists of a first lens having a negative or positive refracting power. The second lens group consists of a second lens having a positive refracting power and a third lens having a negative refracting power with the second and third lenses being cemented together. The second lens group has a positive refracting power as a whole. The following formulae (1) to (4) are satisfied.

F.theta. lens

In a condenser optical system for a light scanning system, a single lens focuses a light beam deflected by a reflecting surface of a deflector onto a surface to be scanned and causes the deflected light to scan the surface in a main scanning direction at a constant speed. A cylindrical mirror which has a refracting power only in a sub-scanning direction normal to the main scanning direction compensates for surface tilt of the reflecting surface. At least one surface of the single lens is toric to compensate for the surface tilt associated with the cylindrical mirror and the toric surface is aspheric in a main-scanning cross-section.

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Kanagawa-ken, Japan

Katsumi Shimada