Abstract: Art exhibition device and a video picture exhibition method which are capable of providing renditions by a spatial image and a projected image, in combination are provided. The exhibition device includes a display portion configured to image-form a spatial image; and a projector configured to project a video picture onto an object. The video picture exhibit ion method using the exhibition device provides a video picture related to the spatial image projected from the projector disposed in a position hang over the display portion toward an upper surface of the display portion. The display portion is configured to image-form a video picture displayed on a display surface of a display disposed in an attitude inclined under a micromirror array through the micromirror array disposed in light-transmissive fashion as a spatial two-dimensional video picture standing up obliquely in a spatial position lying over the micromirror array.

Abstract: In an exhibition device and a video picture exhibition method according to the present invention, at least one exhibition object for reinforcing the three-dimensional effect of a spatial image is disposed in a region other than an upper surface of an image-forming optical element (micromirror array) in an upper surface of an enclosure (case) of the device and at a position where a distance from the center of a virtual display area of the spatial image projected from a display to over the enclosure thereto is not greater than a diagonal length of the virtual display area or at a position where the distance is not greater than a maximum diameter of the virtual display area. This achieves the effective display of an impressive two-dimensional video picture appearing three-dimensional in association with the exhibition object disposed on the upper surface.

Abstract: Art exhibition device and a video picture exhibition method which are capable of providing renditions by a spatial image and a projected image, in combination are provided. The exhibition device includes a display portion configured to image-form a spatial image; and a projector configured to project a video picture onto an object. The video picture exhibit ion method using the exhibition device provides a video picture related to the spatial image projected from the projector disposed in a position hang over the display portion toward an upper surface of the display portion. The display portion is configured to image-form a video picture displayed on a display surface of a display disposed in an attitude inclined under a micromirror array through the micromirror array disposed in light-transmissive fashion as a spatial two-dimensional video picture standing up obliquely in a spatial position lying over the micromirror array.

Abstract: A display device includes: an image-forming optical element provided in light-transmissive fashion in an upper surface of an enclosure; a display dispose in an attitude inclined at a predetermined inclination angle with respect to a lower surface of the image-forming optical element; a reader for reading information held by an information holding element in a non-contacting manner; a sensor for sensing whether an object is present on the upper surface of the enclosure or not; and a controller which controls display on the display. The controller prepares an image corresponding to the information holding element, based on the information held therein and transmitted from the reader. The controller causes the prepared image to be displayed as a spatial image at an appropriate moment, based on an object detection signal transmitted from the sensor.

Abstract: A portable information device case according to the present invention includes three plate-like members: a holder part for housing a portable information device (smartphone) therein, a cover part for covering the holder part, and an optical panel part including an image-forming optical element (micromirror array) fitted therein in light-transmissive fashion. When these members are combined together to have a predetermined shape, the optical panel part is held in an attitude inclined at a predetermined angle with respect to a display surface of the smartphone. Thus, the case allows selection with ease between a usage form in which an image appearing on the display surface is projected as a spatial image and a storage form in which these members are folded and stacked so that the entire case is made compact. The portable information device case according to the present invention is easy to carry.

Abstract: A presentation device according to the present invention includes a panel-shaped image-forming optical element and a flat panel display, and forms a video picture (image) appearing on the display as a spatial image in space over the image-forming optical element. Between the upper surface of the image-forming optical element and the spatial image, a plate (guide plate) having an opening corresponding to the planar shape of the image-forming optical element is disposed at an attitude inclined upwardly from the front toward the back side with respect to the image-forming optical element, whereby the spatial image floats up through the opening of the guide plate. This allows anyone to view a three-dimensional spatial image rich in a sense of depth without experience and skill automatically in an appropriate direction from an appropriate position.

Abstract: A display device includes: an image-forming optical element provided in light-transmissive fashion in an upper surface of an enclosure; a display disposed in an attitude inclined at a predetermined inclination angle with respect to a lower surface of the image-forming optical element; a reader for reading information held by an information holding element in a non-contacting manner; a sensor for sensing whether an object is present on the upper surface of the enclosure or not; and a controller which controls display on the display. The controller prepares an image corresponding to the information holding element, based on the information held therein and transmitted from the reader. The controller causes the prepared image to be displayed as a spatial image at an appropriate moment, based on an object detection signal transmitted from the sensor.

Abstract: A micromirror array according to the present invention is a corner reflector type micromirror array capable of projecting a mirror image of an object to be projected sharply with high luminance. The micromirror array includes a substrate, and a plurality of unit optical elements (quadrangular prisms) formed in an array on the substrate. Each of the unit optical elements is of a protruding or recessed shape perpendicular to the surface of the substrate. The unit optical elements has two side surfaces orthogonal to each other on opposite sides of a corner of the side surfaces, and the two side surfaces are light reflecting surfaces. Each of the light reflecting surfaces is of a rectangular shape such that the ratio of the vertical length thereof as measured in a substrate thickness direction to the horizontal width thereof as measured in a substrate surface direction is not less than 1.5.

Abstract: A manufacturing method for a micromirror array includes: preparing transparent flat substrates; attaching each of the substrates at a predetermined position of a machining stage of a dicing machine; sequentially forming parallel linear grooves arranged at intervals in one surface of each substrate; and stacking the substrates together so that the directions in which the linear grooves of the respective substrates extend are orthogonal to each other as seen in plan view. The substrates are stacked together in a manner selected from the group consisting of: the front surface of one of the substrates and the back surface of the other substrate are joined together for the stacking of the substrates; the front surfaces of the respective substrates are joined together for the stacking of the substrates; and the back surfaces of the respective substrates are joined together for the stacking of the substrates.

Abstract: A portable information device case according to the present invention includes three plate-like members: a holder part for housing a portable information device (smartphone) therein, a cover part for covering the holder part, and an optical panel part including an image-forming optical element (micromirror array) fitted therein in light-transmissive fashion. When these members are combined together to have a predetermined shape, the optical panel part is held in an attitude inclined at a predetermined angle with respect to a display surface of the smartphone. Thus, the case allows selection with ease between a usage form in which an image appearing on the display surface is projected as a spatial image and a storage form in which these members are folded and stacked so that the entire case is made compact. The portable information device case according to the present invention is easy to carry.

Abstract: In an exhibition device and a video picture exhibition method according to the present invention, at least one exhibition object for reinforcing the three-dimensional effect of a spatial image is disposed in a region other than an upper surface of an image-forming optical element (micromirror array) in an upper surface of an enclosure (case) of the device and at a position where a distance from the center of a virtual display area of the spatial image projected from a display to over the enclosure thereto is not greater than a diagonal length of the virtual display area or at a position where the distance is not greater than a maximum diameter of the virtual display area. This achieves the effective display of an impressive two-dimensional video picture appearing three-dimensional in association with the exhibition object disposed on the upper surface.

Abstract: A micromirror array according to the present invention is a corner reflector type micromirror array capable of projecting a mirror image of an object to be projected sharply with high luminance. The micromirror array includes a substrate, and a plurality of unit optical elements (quadrangular prisms) formed in an array on the substrate. Each of the unit optical elements is of a protruding or recessed shape perpendicular to the surface of the substrate. The unit optical elements has two side surfaces orthogonal to each other on opposite sides of a corner of the side surfaces, and the two side surfaces are light reflecting surfaces. Each of the light reflecting surfaces is of a rectangular shape such that the ratio of the vertical length thereof as measured in a substrate thickness direction to the horizontal width thereof as measured in a substrate surface direction is not less than 1.5.

Abstract: A presentation device according to the present invention includes a panel-shaped image-forming optical element and a flat panel display, and forms a video picture (image) appearing on the display as a spatial image in space over the image-forming optical element. Between the upper surface of the image-forming optical element and the spatial image, a plate (guide plate) having an opening corresponding to the planar shape of the image-forming optical element is disposed at an attitude inclined upwardly from the front toward the back side with respect to the image-forming optical element, whereby the spatial image floats up through the opening of the guide plate. This allows anyone to view a three-dimensional spatial image rich in a sense of depth without experience and skill automatically in an appropriate direction from an appropriate position.

Abstract: In a display input device, a panel-shaped image-forming optical element in an upper portion of a case having an open upper surface is disposed at a predetermined position in the opening of the upper surface of the case, and a mounting stand for a flat panel display in a lower portion of the case corresponding to the image-forming optical element is disposed in an attitude inclined at a predetermined angle with respect to the image-forming optical element. An image displayed on the flat panel display is image-formed as a spatial image at a position spaced apart from the image-forming optical element. A touch input device which converts an operator's instruction input into an instruction signal to transmit to a control means for the flat panel display and which allows the manipulation of the spatial image projected in space is disposed outside the case.

Abstract: A manufacturing method for a micromirror array includes: preparing transparent flat substrates; attaching each of the substrates at a predetermined position of a machining stage of a dicing machine; sequentially forming parallel linear grooves arranged at intervals in one surface of each substrate; and stacking the substrates together so that the directions in which the linear grooves of the respective substrates extend are orthogonal to each other as seen in plan view. The substrates are stacked together in a manner selected from the group consisting of: the front surface of one of the substrates and the back surface of the other substrate are joined together for the stacking of the substrates; the front surfaces of the respective substrates are joined together for the stacking of the substrates; and the back surfaces of the respective substrates are joined together for the stacking of the substrates.

Abstract: In an optical waveguide 10 with a light-emitting element to be used in the present invention, a core includes: a main path; and a plurality of branched paths branched at a plurality of branched points from the main path. The main path has two sides faced to each other, in which one side has a plurality of branched points and the other side does not have any branched points. The plurality of branched points are provided on a straight line substantially parallel to a light guiding direction of the main path. The width of the main path becomes narrower as the main path moves away from a light-emitting element. An angle ? formed by the other side without a branched point and the light guiding direction of the main path is 0.3 to 1.7°.

Abstract: A display device according to the present invention includes a mounting stand having a display mounting surface for removably placing an electronic device having a flat panel display thereon, a panel-shaped image-forming optical element, and a case, housing or the like for housing the electronic device therein. The image-forming optical element is disposed on an upper surface of the case or the like. The display mounting surface is disposed under the image-forming optical element at a predetermined inclined angle with respect to a lower surface of the image-forming optical element. A projected image of a video picture displayed on the display is image-formed in a manner floating up over the image-forming optical element by means of light projected from the display of the electronic device placed on the display mounting surface and transmitted through the image-forming optical element.

Abstract: An optical panel having an image-forming function is disposed in parallel with a virtual horizontal plane so that the optical axis thereof is orthogonal to the virtual horizontal plane. A flat panel display is disposed in offset relation below the optical panel such that a display surface of the flat panel display is inclined at a predetermined angle with respect to the virtual horizontal plane and faces upward. A light source for projecting light toward a hand, and a camera for imaging the reflection of the light from the hand are provided below or above a spatial image image-formed above the optical panel. This provides a user interface display device which does not include structure serving as an obstacle to manipulation around the spatial image projected in space to achieve an interaction with the spatial image by using the hand of the operator in a natural manner.

Abstract: An input device includes: a light source; an image sensor (camera C) disposed on the same side of a hand as the light source; a controller; a shape recognizer for calculating coordinates of the center of gravity of a fist and the tip of a finger from a two-dimensional image; and a motion determinator for comparing distances between the center of gravity of the fist and the fingertip. When there is a decrease or an increase between the distances between the center of gravity of the fist and the fingertip before and after measurement, a determination is made that the motion is an upward or downward motion of the finger with respect to a virtual imaging plane of the camera. This provides a method for detecting motion of an input body, capable of detecting the motion of a hand from image analysis by using the single image sensor.

Abstract: A suspension board with circuit includes a circuit board and an optical waveguide provided in the circuit board. The optical waveguide is provided with a first optical waveguide having a curved portion and a secondary optical waveguide having a linear portion. The first optical waveguide includes a first under clad layer, a first core layer formed on the first under clad layer and included in the first under clad layer when projected in the thickness direction, and a first over clad layer formed on the first under clad layer so as to cover the first core layer. The secondary optical waveguide includes a secondary under clad layer, a secondary core layer formed on the secondary under clad layer, and a secondary over clad layer formed on the secondary core layer and included in the secondary core layer when projected in the thickness direction.