Abstract: Technical Problem In the case where an optical fiber is wound around several times and housed, it is difficult to take out a terminal end of the optical fiber at a side wound around before. Solution to Problem A housing case includes: a body; and bobbin around which an optical fiber is to be wound, the bobbin being housed rotatably in the body, bobbin having a partition portion, partition portion having a fiber groove that guides the optical fiber between an inside and an outside of the partition portion, and the optical fiber being housed by housing a one end side of the optical fiber in the inside of the partition portion and by winding around an outer wall surface of the partition portion the optical fiber that has been guided to the outside of the partition portion with the fiber groove.

Abstract: Technical Problem In the case where an optical fiber is wound around several times and housed, it is difficult to take out a terminal end of the optical fiber at a side wound around before. Solution to Problem A housing case includes: a body; and bobbin around which an optical fiber is to be wound, the bobbin being housed rotatably in the body, bobbin having a partition portion, partition portion having a fiber groove that guides the optical fiber between an inside and an outside of the partition portion, and the optical fiber being housed by housing a one end side of the optical fiber in the inside of the partition portion and by winding around an outer wall surface of the partition portion the optical fiber that has been guided to the outside of the partition portion with the fiber groove.

Abstract: Provided is a method of chromaticity adjustment of a display device including a drive circuit for generating a gray-scale signal corresponding to a video signal input from an external portion and supplying the gray-scale signal to a plurality of pixels, the method including: measuring chromaticity coordinates of an image displayed on the display device; determining whether the measured chromaticity coordinates are chromaticity coordinates within a first region that does not need a chromaticity correction or chromaticity coordinates within a second region that needs the chromaticity correction; determining, if the measured chromaticity coordinates are the chromaticity coordinates within the second region, which of a plurality of correction regions obtained by dividing the second region the chromaticity coordinates fall within; correcting the gray-scale signal corresponding to the video signal by using a chromaticity correcting portion corresponding to the determined one of the plurality of correction regions;

Abstract: Provided is a method of chromaticity adjustment of a display device including a drive circuit for generating a gray-scale signal corresponding to a video signal input from an external portion and supplying the gray-scale signal to a plurality of pixels, the method including: measuring chromaticity coordinates of an image displayed on the display device; determining whether the measured chromaticity coordinates are chromaticity coordinates within a first region that does not need a chromaticity correction or chromaticity coordinates within a second region that needs the chromaticity correction; determining, if the measured chromaticity coordinates are the chromaticity coordinates within the second region, which of a plurality of correction regions obtained by dividing the second region the chromaticity coordinates fall within; correcting the gray-scale signal corresponding to the video signal by using a chromaticity correcting portion corresponding to the determined one of the plurality of correction regions;

Abstract: There is provided a liquid crystal display device that can easily suppress color variation, even if there is a difference in white tolerance of the backlight. The liquid crystal display device includes a liquid crystal display panel to which an image signal is input, and a backlight provided on one side of the liquid crystal display panel, using a light emitting diode as a light source of the backlight. Information about the white tolerance of the light source using the light emitting diode, which indicates one rank of plural ranks assigned to the white tolerance, is clearly indicated in a portion of the backlight. The information is input to an image quality processing circuit in order to correct gamma characteristics of the image signal according to the information.

Abstract: In a balance device for a mechanical press, a press body or frame rotatably mounts a crankshaft. A slide is supported from the crankshaft by connecting rods so that it reciprocates transverse to the axial direction of the crankshaft as the shaft is rotated. To avoid the development of an oscillating effect in the press body during operation a first gear is positioned on the crankshaft. Balancing gears are supported on the press body in meshed engagement with the first gear. Each of the first gear and the balancing gears has a balance weight for counteracting the tendency of the slide to cause oscillation and vibrations in the press body.

Abstract: A roll feed device for feeding a material to a press in a predetermined timed relationship to the operation of the press. The device includes a pair of feed rolls between which the material is fed, one being an idle roll and the other being a driven roll. The driven roll has a drive shaft, and an intermittent rotating mechanism is operably associated with the drive shaft of the press and has an output shaft parallel to the drive shaft of the driven roll. Disks are mounted on the ends of these shafts and are in frictional engagement with each other for driving the drive shaft from the output shaft. The disks can be easily exchanged for changing the drive of the roll feed device.