Abstract: A booster lever unit includes a first lever pivotably supported by an object via a first pivotal shaft, a second lever pivotably supported by the object via a second pivotal shaft, and a linkage member that links the first lever to the second lever. The pivotal plane of the first lever is parallel to the pivotal plane of the second lever. The first lever has one end provided with an operation section, and another end provided with the first pivotal shaft, and the first lever further includes a first linker, the first linker being provided between the operation section and the first pivotal shaft and linked to the linkage member. The second lever has one end provided with an action section, and another end provided with a second linker linked to the linkage member, and the second pivotal shaft is provided between the action section and the second linker.

Abstract: An enclosure of an electronic computing apparatus allows two electronic computing modules, each having a built-in fan, to be mounted in a perpendicular direction, when the two electronic computing modules are inserted, a shutter is at an intermediate position due to an elastic force of pushing a spring cover in a front surface direction, from push rods corresponding to the two electronic computing modules, and when one of the electronic computing modules is removed, the elastic force of pushing the cover from the push rod on the removal is lost, and the shutter moves, around a rotating mechanism, to a side of a housing space on the removal side and shuts off a flow path in the housing space.

Abstract: An image display device includes: a display panel displaying an image; a first support member and a second support member that support the display panel in an erected state; a first mounting member interposed by fitting between the display panel and one of the first support member and the second support member; a second mounting member interposed by fitting between the display panel and another of the first support member and the second support member; and a first attachment part, a second attachment part, a third attachment part, and a fourth attachment part provided on a back surface of the display panel and having structures fitted to at least one of the first mounting member and the second mounting member. The first attachment part, the second attachment part, the fourth attachment part, and the third attachment part are provided in this order from one end to another end in a width direction of the back surface of the display panel.

Abstract: An image display device includes: a display panel displaying an image; a first support member and a second support member that support the display panel in an erected state; a first mounting member interposed by fitting between the display panel and one of the first support member and the second support member; a second mounting member interposed by fitting between the display panel and another of the first support member and the second support member; and a first attachment part, a second attachment part, a third attachment part, and a fourth attachment part provided on a back surface of the display panel and having structures fitted to at least one of the first mounting member and the second mounting member. The first attachment part, the second attachment part, the fourth attachment part, and the third attachment part are provided in this order from one end to another end in a width direction of the back surface of the display panel.

Abstract: An optical signal emitted from a semiconductor laser is converged by a lens and then received by a single uniaxial birefringent crystal having a C axis that is inclined at an angle other than 90 degrees against a laser optical axis to output an optical signal having a polarized wave component of constant intensity corresponding to the wavelength of the optical signal regardless of temperature changes. The optical signal has an ordinary ray vibrating in a direction perpendicular to a plane including both the C axis and the laser optical axis, and an extraordinary ray vibrating in a direction perpendicular to both the ordinary ray and the laser optical axis. A first main photo detector detects the intensity of a p-polarized component of the optical signal that has passed through a polarizer and a second photo detector directly receives the optical signal converged by the lens.

Abstract: A wavelength filter includes a solid material that is optically transparent and including a pair of planar surfaces substantially parallel to each other; and a supporting member that supports the solid material on a planar surface of the solid material other than the pair of planar surfaces, the supporting member having a rigidity higher than that of the solid material. The solid material is a birefringent material of which an optical axis makes a predetermined angle with respect to a normal to the pair of planar surfaces, and the wavelength filter selects light having a wavelength that is determined by an optical length between the pair of planar surfaces by resonating the light between the pair of planar surfaces.

Abstract: A wavelength filter includes a solid material that is optically transparent and including a pair of planar surfaces substantially parallel to each other; and a supporting member that supports the solid material on a planar surface of the solid material other than the pair of planar surfaces, the supporting member having a rigidity higher than that of the solid material. The solid material is a birefringent material of which an optical axis makes a predetermined angle with respect to a normal to the pair of planar surfaces, and the wavelength filter selects light having a wavelength that is determined by an optical length between the pair of planar surfaces by resonating the light between the pair of planar surfaces.

Abstract: A wavelength monitor comprises a cylindrical lens configured to allow a laser beam emitted from a semiconductor laser to pass therethrough, first and second photodetectors configured to receive the laser beam through the cylindrical lens, and a wavelength filter disposed in an optical path between the semiconductor laser and the first photodetector.

Abstract: An optical signal emitted from a semiconductor laser (1) is converged by a lens (2) and is then received by a single uniaxial birefringent crystal (3). The uniaxial birefringent crystal (3) has a C axis that is inclined at an angle other than 90 degrees against a laser optical axis that is the direction in-which the optical signal is traveling so as to output an optical signal having a polarized wave component of constant intensity corresponding to the wavelength of the optical signal regardless of temperature changes thereof. The optical signal passing through the uniaxial birefringent crystal (3) has an ordinary ray vibrating in a direction perpendicular to a plane including both the C axis and the laser optical axis, and an extraordinary ray vibrating in a direction perpendicular to both the ordinary ray and the laser optical axis. A polarizer (4) receives this optical signal and allows a p-polarized component of the optical signal to pass therethrough.

Abstract: A backward laser beam radiated from a laser diode is received in a photo diode, and an intensity of a forward laser beam radiated from the laser diode is adjusted according to the intensity of the received backward laser beam. The forward laser beam radiated from the laser diode is collimated in a first lens held by a lens holder, and a most portion of the forward laser beam is output through a package window inclined with respect to an optical axis of the laser diode. The remaining portion of the forward laser beam is reflected on the package window as a reflected laser beam and is transmitted through the first lens to be converged in a narrow area placed above the laser diode. A light shielding plate extending in a plane orthogonal to the optical axis is arranged in a wide area including the narrow area and shields the photo diode from the reflected laser beam from. Therefore, the intensity of the forward laser beam radiated from the laser diode is correctly adjusted.

Abstract: A backward laser beam radiated from a laser diode is received in a photo diode, and an intensity of a forward laser beam radiated from the laser diode is adjusted according to the intensity of the received backward laser beam. The forward laser beam radiated from the laser diode is collimated in a first lens held by a lens holder, and a most portion of the forward laser beam is output through a package window inclined with respect to an optical axis of the laser diode. The remaining portion of the forward laser beam is reflected on the package window as a reflected laser beam and is transmitted through the first lens to be converged in a narrow area placed above the laser diode. A light shielding plate extending in a plane orthogonal to the optical axis is arranged in a wide area including the narrow area and shields the photo diode from the reflected laser beam from. Therefore, the intensity of the forward laser beam radiated from the laser diode is correctly adjusted.

Abstract: A wavelength monitor comprises a cylindrical lens configured to allow a laser beam emitted from a semiconductor laser to pass therethrough, first and second photodetectors configured to receive the laser beam through the cylindrical lens, and a wavelength filter disposed in an optical path between the semiconductor laser and the first photodetector.

Abstract: For identifying components in a chromatographically analyzed sample, a chromatogram is produced and identification tables corresponding to presences and absences of specified components are preliminarily stored. Peaks corresponding to the specified components in the chromatogram are identified, and presences and absences of these specified components in the sample are thereby determined. A specified one of the identification tables is automatically selected according to the result of this determination of presences and absences, and components corresponding to individual peaks in the chromatogram are identified by using the selected identification table.