Abstract: According to an embodiment, a light beam scanner includes a first mirror and an angular magnification unit. The first mirror makes a normal direction of a reflecting surface change repeatedly. The angular magnification unit is configured to return, when viewed from a first direction, reflected light from the first mirror to the first mirror so that light is reflected at substantially the same points on the first mirror for a plural number of times, and increase, when viewed from the first direction, an angle each time light is reflected from the first mirror, the angle being between the normal direction of the reflecting surface and a reflection direction of light. Light is emitted from the angular magnification unit after the light is reflected from the first mirror for a predetermined number of times.

Abstract: A lighting unit according to one embodiment includes a board, a support member, and a plurality of heat radiation fins. A light emitting element is disposed on a first surface of the board. The support member has an interior surface on which a second surface of the board that is opposite to the first surface is disposed to be in contact therewith to enable heat conduction from the board to the support member. The heat radiation fins are disposed on an exterior surface of the support member substantially parallel with each other and with a clearance between each other, and each having a flat shape that extends outwardly from the exterior surface.

Abstract: According to one embodiment, an image sensor includes an image-sensing element region formed by arranging a plurality of image-sensing elements on a semiconductor substrate, and a logic circuit region formed in a region different from the image-sensing element region on the substrate and including a plurality of gate patterns. Further, dummy gate patterns are formed with a constant pitch on the image-sensing element region.

Abstract: An LED lighting device of embodiment comprising an LED light source which generates an ultraviolet light or a visible light, an axisymmetric transparent member which is provided over the light source and which is transparent to visible light, and an axisymmetric light scattering member disposed in the transparent member apart from the light source. A distance of closest approach L2 between the light source and the light scattering member, and an area C of a light emitting surface of the light source satisfy the settled relation. A length L1 of the light scattering member, and an absorption coefficient ? (1/mm) of the light scattering member satisfy the settled relation. A diameter d1 of the bottom surface of the light scattering member, the distance of closest approach L2, and a refractive index n of the transparent member satisfy the settled relation.

Abstract: According to one embodiment, an image sensor includes an image-sensing element region formed by arranging a plurality of image-sensing elements on a semiconductor substrate, and a logic circuit region formed in a region different from the image-sensing element region on the substrate and including a plurality of gate patterns. Further, dummy gate patterns are formed with a constant pitch on the image-sensing element region.

Abstract: According to one embodiment, a lighting apparatus comprises a light source configured to generate heat, a transparent heat transfer member located near the light source and having transparency and heat conductivity, and a means for transferring heat from the light source to the transparent heat transfer member.

Abstract: According to one embodiment, a projector includes a light source unit, a light scanning unit, and a focus controller. The light source unit emits laser light. The light scanning unit includes a holder and a reflective surface. The holder is capable of a first rotation operation around a first direction. The reflective surface is held by the holder and is capable of a second rotation operation around a second direction intersecting the first direction. The light scanning unit scans the laser light by the first and second rotation operations. The focus controller is provided between the light source unit and the light scanning unit in an optical path of the laser light to modify a convergence of the laser light. An angle between a plane including the first and second directions, and an image surface is not less than 80 degrees and not more than 100 degrees.

Abstract: In one embodiment, a light emitting device includes: a light source which emits light; a light guide portion which has an emission surface which emits light and a back surface which opposes to the emission surface, and which has at the back surface a reflecting portion which the light emitted from the light source enters and which reflects the entering light toward the emission surface; a heat transfer portion which opposes to the back surface of the light guide portion and is provided with an interval which is a wavelength of the light or more being spaced from the back surface; and a support portion which is provided between the reflecting portion and the heat transfer portion, and which keeps the interval between the light guide portion and the heat transfer portion.

Abstract: In one embodiment, an illumination device includes a light-guiding unit having a light output surface which outputs light and a back surface facing the light output surface, wherein the light-guiding unit has a curved surface in a region of the back surface farther than a first position on the back surface that is away by a first distance from an axis passing the light output surface and the back surface, and a rough surface in a region of the light output surface farther than a second position on the light output surface that is away by a second distance from the axis in a same direction as a direction from the axis toward the first position, and where an intersection of the axis and the back surface is an origin point, and a direction of the axis from the back surface to the light output surface is positive, a normal line of the curved surface intersects with the axis at the positive side of the axis, and an angle formed by a normal line vector at the second position in a direction toward the light output s

Abstract: A recording media deciding apparatus has: a light radiating portion which radiates light having a uniform light amount on a range corresponding to an image capturing range of a first surface of a bundle of recording media; a light detecting portion which captures an image of light emitted from a second surface different from the first surface of the bundle of the recording media; and a controller which decides on a type of the recording media based on an output of the light detecting portion.

Abstract: According to one embodiment, a surface light source device includes following elements. The light guide plate includes a flat portion and a curved portion. The light guide plate further includes an end surface to introduce light which is located on a side of the curved portion, a light diffusing portion to diffuse the light introduced from the end surface, and a light-emitting surface to output the light diffused by the light diffusing portion. The light-emitting unit is to generate the light toward the end surface. The housing is to house the light guide plate and the light-emitting unit. The fixing portion is to fix the light guide plate to the housing, the fixing portion being arranged in contact with the curved portion.

Abstract: According to one embodiment, a surface light source device includes a light guide plate, and first and second light-emitting units. The light guide plate includes a flat portion and a curved portion. The curved portion guides, to the flat portion, light introduced from the end surface and transmits light introduced from the inner circumferential surface. The flat portion includes a light diffusing portion to diffuse the light guided by the curved portion, and a light-emitting surface to output the light diffused by the light diffusing portion. The first light-emitting unit emits light toward the end surface. The second light-emitting unit emits light toward the inner circumferential surface.

Abstract: According to one embodiment, a microwave annealing apparatus is provided, including a housing shielding electromagnetic waves, a first electromagnetic wave source configured to apply a first electromagnetic wave into the housing, a second electromagnetic wave source configured to apply, into the housing, a second electromagnetic wave having a higher frequency than the first electromagnetic wave, a susceptor configured to hold a semiconductor substrate, made of a material transparent to the first electromagnetic wave and provided in the housing, a temperature measuring device configured to measure the temperature of the semiconductor substrate, and a control unit configured to control the power of each of the first and second electromagnetic wave sources in accordance with the temperature measured by the temperature measuring device.

Abstract: According to one embodiment, a light guide body includes a light guide plate and a prism array unit. The light guide plate has a major surface, a first side surface, and a second side surface on an opposite side to the first side surface. The prism array unit is provided on the major surface to be in contact with the major surface. The prism array unit includes a plurality of prism bodies. Each of the prism bodies extends along a first direction from the first side surface to the second side surface. The prism bodies are disposed to align along a second direction parallel to the major surface and perpendicular to the first direction. A vertex angle of the prism bodies is a substantially right angle. A refractive index of the prism bodies is higher than a refractive index of the light guide plate.

Abstract: According to one embodiment, illumination apparatus including, first light source module which includes light-emitting module that emits light, light-emitting module having line shape, and first reflection member which includes first reflection surface that reflects light emitted from light-emitting module of first light source module for predetermined range, wherein first reflection surface has cross section that has zigzag line shape including plurality of line segments running along standard oval, which has major axis that forms predetermined angle with direction perpendicular to predetermined range, in direction perpendicular to longitudinal direction of light-emitting module of first light source module.

Abstract: A lighting unit according to one embodiment includes a board, a support member, and a plurality of heat radiation fins. A light emitting element is disposed on a first surface of the board. The support member has an interior surface on which a second surface of the board that is opposite to the first surface is disposed to be in contact therewith to enable heat conduction from the board to the support member. The heat radiation fins are disposed on an exterior surface of the support member substantially parallel with each other and with a clearance between each other, and each having a flat shape that extends outwardly from the exterior surface.

Abstract: A lighting unit according to one embodiment includes a board, an insulating plate, an optical lens, and a positioning member. The board has a mounting surface on which a light emitting element is mounted. The insulating plate is disposed on the mounting surface of the board to control the reflection direction of light emitted from the light emitting element. The optical lens diverges or converges the light reflected by the insulating plate. The positioning member positions the insulating plate and the optical lens such that the insulating plate and the optical lens are located away from each other by a predetermined distance. A lighting device according to one embodiment includes a plurality of the lighting units fixed to the lighting device via a fixing frame.

Abstract: A lighting apparatus, comprising: a light source that emits light; a hollow heat-transfer member including an outer surface on which the light source is disposed; and a light guiding member that covers the light source and at least part of the outer surface along the outer surface.

Abstract: According to one embodiment, a surface light source device includes a light guide plate, and first and second light-emitting units. The light guide plate includes a flat portion and a curved portion. The curved portion guides, to the flat portion, light introduced from the end surface and transmits light introduced from the inner circumferential surface. The flat portion includes a light diffusing portion to diffuse the light guided by the curved portion, and a light-emitting surface to output the light diffused by the light diffusing portion. The first light-emitting unit emits light toward the end surface. The second light-emitting unit emits light toward the inner circumferential surface.

Abstract: An optical information recording/reproducing apparatus includes a spatial light modulator that converts an irradiation beam emitted from a light source to a single information beam that carries information; an optical system that causes the single information beam to be collected on an optical-information recording medium including an information recording layer capable of recording the information as hologram by using interference fringes produced due to interference between the single information beam and a plurality of reference beams, and causes each of the reference beams to be irradiated to the optical-information recording medium from mutually different directions so as to intersect with the single information beam in the information recording layer; and a controller that controls to cause the light source to emit the irradiation beam and performs angular multiplexing recording of the information in the information recording layer while controlling to drive either one of the optical-information recordi