National Institute of Information and Communications Technology, Incorporated

Stanley Electric Co., Ltd

Mitsubishi Electric Corporation

Satoshi Maekawa

Takashi Sugiyama

Hiroko Kotani, Legal Representative

Toshihiro Kobayashi

Takahiro Akimoto

Kunihiko Katano

Yuki Hikawa

Toshiki Kitajima

Yuki Kitamura

Natsuko Fujii

Markon Sandor

Yoshihisa Fujiwara

Takahiko Arimoto

Tomoya Okumura

A source code analysis unit identifies dependency strengths of one or more functions included in a source code. An influence analysis unit identifies one or more transfer functions that will each move to a different subsystem due to refactoring and identifies a dependency strength to be influenced by the refactoring, based on the dependency strengths that have been identified by the source code analysis unit with respect to the one or more transfer functions. A scale calculation unit calculates the scale of the refactoring, based on the dependency strength to be influenced, which has been identified by the influence analysis unit.

Scale calculation apparatus and computer readable medium

A reflector array optical device has a plurality of dihedral corner reflector array optical elements which are disposed side by side on the same plane. Each of the dihedral corner reflector array optical elements has a substrate and a plurality of dihedral corner reflectors which each have at least two orthogonal side faces perpendicular to the principal surface of the substrate and orthogonal to each other, and which are formed on the substrate so that the orientations of the interior angles of the orthogonal side faces are aligned with each other.

Reflector array optical device and method for manufacturing the same

A floating image interaction device includes an imaging optical system projecting a floating real image of an object and an user object detecting means for obtaining information about the user accessing the floating real image; means to realize interactive response by the real image or by haptic feedback to actions by the user; and related computer programs.

Floating image interaction device and its program

A volume scanning three-dimensional floating image display is constructed from a real mirror image forming optical system capable of forming the real mirror image of an object to be projected in a planar symmetric position with respect to a symmetry surface, and a display located under the symmetry surface showing images that serve as the object to be projected, and an actuator means capable of moving the display in a direction with a component perpendicular to the display surface, so by changing the displayed image synchronously with the motion of the display, the real mirror image of that image will be formed in the space on the other side of the symmetry surface as a three-dimensional floating image.

Volume scanning three-dimensional floating image display device

A display device includes a dihedral corner reflector array optical element composed of a substrate and a plurality of dihedral corner reflectors arranged regularly on one main surface of the substrate, the dihedral corner reflectors including orthogonal mirror planes perpendicular to each other and being perpendicular to the main surface of the substrate; and an object existing by the one surface of the substrate, the optical element forming a real image of the object by the other main surface of the substrate. The optical element includes a plurality of protrudent bodies integrally formed of a transparent material of the substrate, each of the protrudent bodies including two sides of orthogonal mirror planes perpendicular to each other as the dihedral corner reflector perpendicular to the main surface of the substrate. The optical element is disposed so that the protrudent bodies face toward a space in which the object exists.

Display device using a dihedral corner reflector array optical element

A display device is capable of freely setting a viewing location for a real image formed by an imaging optical system of real specular image. The display device includes: an object of view; the imaging optical system having a semitransparent substrate with a plane of symmetry to define an object side space in which the object exists and a viewer side space in which a viewer exists, where the imaging optical system forms a real image of the object of view in the viewer side space with light passing through the substrate; and a reflective mirror arranged in the viewer side space so as to reflect light beams supplied from the imaging optical system to guide the reflected light beams toward the viewer.

Display device

A reflector array optical device includes two dihedral corner reflector array optical elements each having a substrate and a plurality of prism bodies arranged regularly on and each protruding from one main surface of the substrate. Each prism body includes at least two sides of orthogonal planes. The two optical elements are adhered so that top faces of the prism bodies are directly confronted respectively so as to make two coplanar planes in which the two orthogonal planes exist respectively.

Reflector array optical device and display device using the same

An optical system having a novel imaging method of forming an image of a subject of projection in space the same as if the image were being reflected from a mirror where a mirror does not actually exist is provided, the optical system being provided with a light beam redirecting surface that functions to transmit light while refracting the light and form a real image at a plane-symmetric position, and a mirror surface arranged facing the light beam redirecting surface; in which, by transmitting light emitted from the subject of projection through the light beam redirecting surface, reflecting the transmitted light at the mirror surface, and again transmitting the reflected light through the light beam redirecting surface, an image of a subject of projection arranged at a position on an observation side opposite the mirror surface arranged on the other side across the light beam redirecting surface is formed at a position that is plane-symmetric to the mirror surface with respect to the light beam redirecting surface to which a virtual mirror that does not exist as a substantial body has been moved.

Optical system

A multi-viewpoint floating image display device enabling observation from multiple viewpoints by combining mirror images of objects to be projected and spatially separated from one another as real images in a small region in space. The display device comprises a multi-viewpoint floating image display optical system having real mirror imaging optical systems each of which forms a real image of each of the objects in a plane-symmetric position symmetric to the object with respect to one geometrical plane which is the symmetry plane. All the real mirror imaging optical systems are so arranged that the angle formed by given symmetry planes is less than 180 degrees on the real image side with respect to the symmetry planes. The objects are so arranged as to correspond to the respective real mirror imaging optical systems.

Multi-viewpoint floating image display device

A transmission optical system includes a plurality of imaging optical systems arranged apart from each other, forming successively the image of an object to be projected so a real image of either a two-dimensional or a three-dimensional object can be observed at the opposite end, with its convexity features either identical to or reversed from the projected object, depending on whether the total number of the imaging optical systems is even or odd.

Transmission optical system

A multiple viewing-point floating imaging device is comprised of a plurality of dihedral corner reflectorsarranged along an optical device plane S and rotated around an axis of rotation perpendicular to said plane, to point in a plurality of directions along said plane, whereby light rays from an object O near to said plane are reflected once each by the two mirrors of said dihedral corner reflectors while passing through said plane, forming a real image P in a plane-symmetric position, visible from multiple viewing points Vand Vby multiple observers simultaneously.

Multiple-viewing-point floating image display device

As optical elements for bending a light beam when it passes through an element face constituting one plane, a plurality of unit optical elements for reflecting light on one or more mirror surfaces arranged perpendicularly or at an angle nearly perpendicular to the element face are disposed to constitute an optical imaging element. Light emitted from projection object disposed on one side of the element face is reflected on the mirror surface when it passes through the element face so that a real image is formed in a space on the other side of the element face where a physical entity does not exist, thus constituting a display equipped with the optical imaging element. An aerial picture projection system not existing heretofore is also provided.

Imaging element and display with micro mirror array

A real mirror image forming optical system is constructed from a half-mirror, and from a retroreflector placed in a position where it recursively reflects either the light passing through or reflected by that half-mirror, so that light emitted from an object to be projected placed behind the half-mirror can pass through either a first light path consisting of passing through the half-mirror, recursive reflection by the retroreflector, and reflection by the half-mirror; or a second light path consisting of reflection by the half-mirror, recursive reflection by the retroreflector, and passing through the half-mirror; thus by one or both of these light paths a real mirror image of the object to be projected is formed at a planar symmetric position with respect to the half-mirror surface.

A sensor element capable of appropriately detecting an external force operating three-dimensionally is provided. The sensor element includes an elastic member which can be compressed or expanded by an external force received from an object, a resistance element whose electric resistance value rises or falls when deformed by the external force, and a support member arranged inside or on the surface of the elastic member and capable of supporting the resistance element disposed at a predetermined position. The sensor element is applied to an object movement control device and an object judgment device.

Sensor element, sensor device, object movement control device, object judgment device

A sensor element capable of appropriately detecting an external force operating three-dimensionally is provided. The sensor element has an electrically conductive elastic member whose electrical property changes when compressed or expanded by an external force, and a plurality of electrode elements, which are capable of receiving power supply, for measuring electric properties from outside. The plurality of electrode elements are grouped into one or more sets, each having a predetermined number of electrode elements, for measuring electrical properties, and the electrode elements constituting a set are arranged three-dimensionally inside and on the surface of the conductive elastic member.

Growing community of inventors

Tokyo, Japan

Satoshi Maekawa