Abstract: An information processing apparatus is provided. This information processing apparatus includes a first OS that controls execution of a first application, a second OS that controls execution of a second application, and a hypervisor that is executed on a processor and controls execution of the first OS and the second OS.

Abstract: An optical device includes a light guide and a holding member to constitute a light guide unit having a corner and a corner extended outer surface. The corner extended outer surface includes a curved surface that has a radius of curvature of a predetermined standard value or more. A louver is arranged such that an imaginary spherical shape is spaced apart from prisms of the light guide in a state where the imaginary spherical shape is closest to the prisms while being in contact with the louver and the corner extended outer surface without intersecting with blades of the louver.

Abstract: An optical member includes a light guide body that includes an incident surface on which a light from a blind area is incident, multiple reflecting surfaces configured to reflect the light from the incident surface, a smooth surface configured to reflect the light reflected by the reflecting surfaces, and multiple prisms protruding from the reflecting surfaces in a normal direction of the reflecting surfaces and configured to emit the light from the incident surface and the light reflected by the smooth surface to an outside of the light guide body. The prisms are arranged at intervals in a first direction intersecting the normal direction and are arranged at intervals in a second direction intersecting the normal direction and the second direction. Each of the reflecting surfaces is positioned between the adjacent prisms such that reflecting surfaces are arranged at intervals in the first direction and the second direction.

Abstract: An optical device includes a light guide and a holding member to constitute a light guide unit having a corner and a corner extended outer surface. The corner extended outer surface includes a curved surface that has a radius of curvature of a predetermined standard value or more. A louver is arranged such that an imaginary spherical shape is spaced apart from prisms of the light guide in a state where the imaginary spherical shape is closest to the prisms while being in contact with the louver and the corner extended outer surface without intersecting with blades of the louver.

Abstract: An optical device includes a light guide and a light shielding portion. The light guide has: an incident surface on which an external scene light coming from a blind area is incident; a first surface including flat portions and prism portions; and a second surface opposite to the flat portions. The light shielding portion is provided on a surface of the light guide or at a position away from the light guide so as to block an outside light entering the light guide. The light shielding portion has a first light shielding portion for blocking light incident on an inclined surface and a second light shielding portion for blocking light incident on the flat portion in a predetermined direction.

Abstract: An optical member includes a light guide having: an incident surface on which an external scene light is incident from a blind area; a first reflecting surface that reflects light from the incident surface; and a second reflecting surface that reflects light reflected by the first reflecting surface. The optical member further includes a prism having: an exit surface that emits light from the incident surface and light reflected by the second reflecting surface to outside; and a light shielding surface connected to the exit surface to intersect the exit surface. A light from the incident surface and a light reflected by the second reflecting surface are incident on the light shielding surface. The light shielding surface has a rough surface, and a surface roughness of the rough surface is larger than a surface roughness of the exit surface.

Abstract: An optical member includes a mirror that reflects light and a switching mirror that is switchable between a transparent state in which light is transmitted and a reflective state in which light is reflected. The switching mirror is disposed in parallel with the mirror. The switching mirror is configured to reflect an incident light having an incident angle of ? at a reflection angle of ? larger than ? in the reflective state. The mirror is configured to reflect an incident light having an incident angle of ? at a reflection angle of ?.

Abstract: An image forming apparatus includes a head, a detector, and circuitry. The head forms an image on a recording medium. The detector detects a vertical movement of the recording medium and a distance to the recording medium in a vertical direction. The detector includes an optical sensor to project light to the recording medium and receive the light reflected from the recording medium. The circuitry sets a first area based on a result of detection performed by the detector. The first area is an area in which the recording medium and the head collide with each other. The circuitry retracts the head to prevent the recording medium and the head from colliding with each other, in a case where a position of the head is in the first area.

Abstract: An optical member includes a light guide made of a transparent material. The light guide has: an incident surface; an exit surface having exit portions and flat portions; a smooth surface arranged opposite to the flat portions; an upper surface and a lower surface arranged opposite to each other so as to connect the smooth surface and the exit surface; a first protrusion protruding from the upper surface; and a second protrusion protruding from the lower surface. The flat portions reflect the incident light toward the smooth surface by total reflection. The smooth surface reflects the reflected light reflected by the flat portion toward the exit surface by total reflection. The exit portions emit a part of the incident light or a part of light reflected by the smooth surface to the outside.

Abstract: A blind spot assist device includes a first optical element and a second optical element. The first optical element reflects a part of incident light having a first angle of incidence at different second angles such that light is incident at the first angle on the first optical element from an outdoor view and reflected at the second angles on the first optical element. The second optical element is positioned to face the first optical element and reflects incident lights having different angles of incidence at a third angle such that lights reflected by the first optical element are incident at the second angles on the second optical element and reflected at the third angle on the second optical element toward a user.

Abstract: An optical member includes a light-transmitting light guide body and a light-shielding back cover. The light guide body has an incident part including a plurality of protruding incident prism portions, a reflective surface adjacent to the incident part, and an exit surface facing the incident part and the reflective surface. Each of the plurality of incident prism portions has an incident surface that allows an external scenery light to enter the inside of the light guide body and an adjacent surface adjacent to the incident surface. The back cover covers at least an entire area of the reflective surface of the light guide body across a gap, and abuts against the adjacent surface of a rear prism portion that is one of the plurality of incident prism portions adjacent to the reflective surface.

Abstract: An optical member includes a light guide. An inclination angle of a first reflecting surface of the light guide with respect to a first direction perpendicular to a normal direction of the first reflecting surface is defined as ?r in a rotational direction about an axis extending in the normal direction. A line segment is defined by connecting the viewer and the light guide in a cross section perpendicular to the first direction. An inclination angle of the line segment with respect to a second direction perpendicular to the normal direction and the first direction is defined as ? in a rotational direction about an axis extending in the first direction. The first reflecting surface is formed so as to satisfy Inequation of 10°?arctan(tan ?r×sin ?)?90°.

Abstract: An optical element has a light guide made of a light-transmitting material. The light guide has an incident portion where an external light enters, an exit portion which includes a surface where light incident from the incident portion first reaches, in which a protruding prism portion and a flat surface are arranged alternately, and a smooth surface opposite to the exit portion as parallel to the flat surface. The exit portion and the smooth surface are opposite to each other in an X direction. The light guide further has a reinforcing portion that protrudes or is recessed in the X direction from the flat surface or the smooth surface.

Abstract: A blind spot display device displays an image of blind spot blocked by an obstacle, and includes an incidence surface, a light guide member, a first reflecting surface closed to a display region, a second reflecting surface close to the blind spot, and multiple prism portions protruding toward the display region. An external environment light beam enters the incidence surface, reflects alternately on the first and second reflecting surface while passing through the light guide member, and emits toward the display region through the prism portions. Apexes of the prism portions are arranged in a three dimensional manner not along a plane.

Abstract: An optical member includes a light guide made of a light-transmitting material. The light guide has an entrance surface, an exit section that outputs a part of light incident from the entrance surface to outside, a smooth surface opposite to the exit section, and a terminal surface located opposite to the entrance surface to connect the exit section and the smooth surface. The exit section has a first region adjacent to the entrance surface and a second region adjacent to the first region. The first region has a step-shaped reflective surface and a prism part alternately arranged adjacent to each other. The step-shaped reflective surface has plural flat surfaces located at different heights through a step portion.

Abstract: An optical member includes a light guide body. The light guide body has an incident surface on which an outside light is incident, a first surface having flat portions and prism portions, an incident light incident on the incident surface reaching the first surface for the first time, and a second surface arranged opposite to the flat portions. The flat portions totally reflect the incident light toward the second surface. The second surface totally reflects a reflected light reflected by the flat portion toward the first surface. The prism portion has an ejection surface to emit the incident light to outside.

Abstract: An optical device introduces light from an outdoor view in a blind spot area hidden by an obstacle. The optical device includes a first reflector that reflects a part of light and transmits another part of the light, and a second reflector placed between a back surface of the first reflector and the obstacle and apart from the first reflector. The second reflector has a reflective surface that reflects light incident from the first reflector toward the first reflector. A light shield is placed at a front surface of the first reflector to block external light incident on and reflected from the front surface of the first reflector. The light shield includes light-shielding plates arranged at an interval in a vertical direction such that each light-shielding plate is horizontal. The first reflector is parallel to the reflective surface of the second reflector and tilted from a vertical axis.

Abstract: A light guide member includes an incident portion, an emission portion, a reflection portion, and an inclined portion. An internal reflection angle inside the reflection portion and the emission portion is larger than an incident angle of an external light with respect to a first normal line that is a normal line of the emission portion. A first inclination angle that is an inclination angle of the incident portion with respect to the first normal line is smaller than the internal reflection angle. A height from the emission portion to a second side of the incident portion is larger than a distance between the emission portion and the reflection portion. A second inclination angle that is an inclination angle of the inclined portion with respect to the first normal line is smaller than the internal reflection angle.

Abstract: An optical member includes a light guide body that includes a smooth incident surface, a reflecting and emitting surface disposed to face the smooth incident surface, a reflecting surface continuously arranged with the smooth incident surface, and a smooth emitting surface continuously arranged with the reflecting and emitting surface. The reflecting and emitting surface includes first flat portions configured to emit a part of an incident light, and first reflecting portions configured to reflect another part of the incident light. The reflecting surface includes second flat portions and second reflecting portions configured to reflect the light reflected by the first reflecting portions in different directions toward the smooth emitting surface. The smooth emitting surface is configured to reflect the light reflected by the second flat portions by total reflection and emit the light reflected by the second reflecting portions to the outside.

Abstract: Systems and methods for improving the brightness of a transparent display are disclosed herein. One embodiment collects ambient light using an array of diffraction gratings disposed on an external surface of a building; filters the ambient light to produce filtered ambient light; generates primary-source light using a light-emitting-diode (LED) light source; and injects, into a transparent edge-lit liquid crystal waveguide display deployed in at least a portion of a window of the building, the primary-source light and the filtered ambient light in a color-synchronized manner. The filtered ambient light improves the brightness of the transparent edge-lit liquid crystal waveguide display.