Abstract: A connector panel includes: a disc-shaped panel base that has a first screw portion on an outer circumferential surface of the panel base; an attachment that has a first cylindrical portion and a flange, the attachment having a second screw portion at a first-end portion of an inner circumferential surface of the first cylindrical portion; and an intermediate support whose inner circumferential surface has a third screw portion to which the first screw portion of the panel base is to be screwed, and whose outer circumferential surface has a fourth screw portion to which the second screw portion of the attachment is to be screwed, the intermediate support having a second cylindrical portion that is to be disposed coaxially with the first cylindrical portion of the attachment.

Abstract: A cholesteric resin layered body including a substrate, an intermediate layer, and a cholesteric resin layer in this order, wherein a difference in a reflection band center wavelength of the cholesteric resin layer before and after the layered body is heated at 130° C. for 8 hours is 50 nm or less, method for producing the same, as well as a reflective material, a display medium and a decorating material including the same.

Abstract: A cholesteric resin layered body including a substrate, an intermediate layer, and a cholesteric resin layer in this order, wherein a difference in a reflection band center wavelength of the cholesteric resin layer before and after the layered body is heated at 130° C. for 8 hours is 50 nm or less, method for producing the same, as well as a reflective material, a display medium and a decorating material including the same.

Abstract: A sheet-shaped lightguide member has a first surface (11A), which is divided into at least two areas. The sheet-shaped lightguide member has the first surface (11A) and a second surface (11B) that face each other and a peripheral edge surface (11C). The lightguide member receives light through at least a part of the peripheral edge surface, guides the light, and emits the guided light from the first surface (11A) serving as a light exit surface. The lightguide member is divided into the at least two light exit areas (14A, 14B) and has a light-blocking part (18) provided along a boundary between mutually adjacent light exit areas to block transmission of light between the adjacent light exit areas.

Abstract: Provided is a direct-type backlight device having a sufficient luminance in a front direction and capable of suppressing a luminance unevenness on a light emitting plane with a reduced electric power consumption. In the direct-type backlight device having linear light sources 2, a reflecting plate 3 and a light diffusing member 1, a distance (a) between centers of the adjacent two linear light sources is 30 to 65 mm. The light diffusing member 1 has an approximately flat light incident plane 1A and a light outgoing plane 1B on which multiple linear prisms 4 are aligned. The linear prism 4 has two inclined surfaces 4A having an approximately equal tilt angle against a plane which is perpendicular to a thickness direction of the light diffusing member 1.

Abstract: A thin direct-type backlight capable of realizing high brightness uniformity is provided by a specific configuration of the direct-type backlight whereby high light beam utilization ratio is maintained while periodical unevenness of the light emitting surface is suppressed. In a direct-type backlight device having a plurality of linear light sources in parallel, a reflection plate and a light diffusion plate, at least one of main surfaces of the light diffusion plate is provided with a prismatic ridges having a sawtooth-shaped cross-section. The apex angle “y” (degree) of the prismatic ridge of the light diffusion plate, the distance “a” (mm) between centers of the adjacent linear light sources, and the distance “b” (mm) from a center of the linear light sources to a surface of the light diffusion plate facing the light source satisfy the relationship of 80×(b/a)+15<y<180×(b/a)+70.

Abstract: A lens array sheet having a plurality of pyramid-shaped projections or recesses on a surface of its transparent base material film, particularly suitable to be used as a light condensing plate of an organic electroluminescence element is provided.

Abstract: Provided is a direct-type backlight device having a sufficient luminance in a front direction and capable of suppressing a luminance unevenness on a light emitting plane with a reduced electric power consumption. In the direct-type backlight device having linear light sources 2, a reflecting plate 3 and a light diffusing member 1, a distance (a) between centers of the adjacent two linear light sources is 30 to 65 mm. The light diffusing member 1 has an approximately flat light incident plane 1A and a light outgoing plane 1B on which multiple linear prisms 4 are aligned. The linear prism 4 has two inclined surfaces 4A having an approximately equal tilt angle against a plane which is perpendicular to a thickness direction of the light diffusing member 1.

Abstract: A sheet-shaped lightguide member has a first surface (11A), which is divided into at least two areas. The sheet-shaped lightguide member has the first surface (11A) and a second surface (11B) that face each other and a peripheral edge surface (11C). The lightguide member receives light through at least a part of the peripheral edge surface, guides the light, and emits the guided light from the first surface (11A) serving as a light exit surface. The lightguide member is divided into the at least two light exit areas (14A, 14B) and has a light-blocking part (18) provided along a boundary between mutually adjacent light exit areas to block transmission of light between the adjacent light exit areas.

Abstract: A lighting device illuminates an operation panel having a plurality of display area groups (2A, 2B) each including at least one display area. The lighting device can illuminate the operation panel with different light for each display area group. The lighting device includes at least two sheet-shaped lightguide members (4A, 4B) corresponding to the plurality of display area groups, respectively. The lightguide members are stacked at a back of the operation panel. The lighting device further includes light sources (5A, 5B) that are disposed to face at least one edge of the respective sheet-shaped lightguide members each guiding light from the respective light sources. The lightguide members (4A, 4B) have respective light-emitting areas (8) that deflect and emit the guided light toward the display areas of the corresponding groups (2A, 2B).

Abstract: A thin direct-type backlight capable of realizing high brightness uniformity is provided by a specific configuration of the direct-type backlight whereby high light beam utilization ratio is maintained while periodical unevenness of the light emitting surface is suppressed. In a direct-type backlight device having a plurality of linear light sources in parallel, a reflection plate and a light diffusion plate, at least one of main surfaces of the light diffusion plate is provided with a prismatic ridges having a sawtooth-shaped cross-section. The apex angle “y” (degree) of the prismatic ridge of the light diffusion plate, the distance “a” (mm) between centers of the adjacent linear light sources, and the distance “b” (mm) from a center of the linear light sources to a surface of the light diffusion plate facing the light source satisfy the relationship of 80×(b/a)+15<y<180×(b/a)+70.

Abstract: A lens array sheet having a plurality of pyramid-shaped projections or recesses on a surface of its transparent base material film, particularly suitable to be used as a light condensing plate of an organic electroluminescence element is provided.

Abstract: A method of imaging an object by the ultrasonic or electromagnetic wave by mechanically or electronically scanning the ultrasonic or electromagnetic wave transmitting/receiving system to transmit the ultrasonic or electromagnetic wave beam spreading in space of the object and using the trace (TOF locus) from the transmission to the reception while receiving the reflected wave from the object, and sequentially reproducing the line image at the central line of the synthetic aperture range using the received signal group from the scanning points in the synthetic aperture range to sequentially image the area to be imaged while scanning the ultrasonic or electromagnetic wave transmitting/receiving system. An imaging apparatus applied with the method has a relatively simple hardware structure for reproducing the image and is also able to perform the operation in real time.