Abstract: Means of solution: Optical protrusions 23 of nano-size for restricting reflection of light and protection columns 24 for preventing crushing of the optical protrusions 23 are provided on a surface of a film substrate 22. The protection columns 24 have a frustum shape. When a ratio of a projection area in which all of lateral surfaces of a single protection column 24 are projected on a surface of the film substrate 22 from a direction that is perpendicular to the surface of the film substrate 22 to a divided area on the surface of the film substrate 22 with respect to the single protection column 24 is defined to be a lateral surface projection occupying area rate, the lateral surface projection occupying area rate of the antireflection film is not more than 0.25% and not less than 0.01%.

Abstract: An electromagnetic relay has a base, an electromagnet unit mounted on the base, and having a coil, a movable contact plate having a movable contact mounted on a distal end thereof, and a first stationary contact terminal and a second stationary contact terminal. The movable contact plate is moved by electrically energizing and deenergizing the coil of the electromagnet unit to cause the movable contact to make and break contacts with the first stationary contact terminal and the second stationary contact terminal alternately. The first stationary contact terminal and the second stationary contact terminal are implanted vertically in the base. The first stationary contact terminal supports a stationary contact. The second stationary contact terminal supports an insulating member mounted thereon.

Abstract: An electromagnetic relay has a base, a first stationary contact terminal mounted on the base, and having a first stationary contact mounted thereon, a first movable contact plate having a first movable contact mounted thereon, an electromagnet unit mounted on the base that moves the first movable contact plate to make or break a contact between the first stationary contact and the first movable contact, and a permanent magnet mounted on the base so as to extend an arcing generated between the first stationary contact and the first movable contact toward the base.

Abstract: On a surface of a film base material (22), an antireflection structure configured by nano-sized optical projections (23) to suppress reflection of light and protective pillars (24) to prevent the optical projections (23) from being flattened out are arranged. The protective pillar (24) has a truncated cone shape. When a diameter of the protective pillar (24) at a proximal end thereof, a height of the protective pillar (24), and an angle between a side surface of the protective pillar (24) and a central axis of the protective pillar (24) on a section passing through the central axis of the protective pillar (24) are given by D, H, and ?, respectively, these values satisfy a relationship: D>2H×tan(2?).

Abstract: Means of solution: Optical protrusions 23 of nano-size for restricting reflection of light and protection columns 24 for preventing crushing of the optical protrusions 23 are provided on a surface of a film substrate 22. The protection columns 24 have a frustum shape. When a ratio of a projection area in which all of lateral surfaces of a single protection column 24 are projected on a surface of the film substrate 22 from a direction that is perpendicular to the surface of the film substrate 22 to a divided area on the surface of the film substrate 22 with respect to the single protection column 24 is defined to be a lateral surface projection occupying area rate, the lateral surface projection occupying area rate of the antireflection film is not more than 0.25% and not less than 0.01%.

Abstract: A diffusing board which can suppress moiré fringes, color flickering and screen brightness deterioration on a screen of a liquid crystal display device. On the surface of a transparent board (83), a pattern wherein substantially rectangular shapes are arranged in lattice by using a synthesized pattern (86) is formed. The synthesized pattern (86) is provided by synthesizing a plurality of first uneven patterns (84) having a linear shape which is long in one direction, and a plurality of concave lens shaped second uneven patterns (85) arranged at random.

Abstract: On a light guide plate (32), a prism sheet (36), an uneven diffuser plate (37) and a correcting optical sheet (38) are placed one over another. Light outputted from the light guide plate (32) in a direction substantially parallel to a light outputting surface (45) is bent to a direction substantially vertical to the light outputting surface (45) by the prism sheet (36). Light which passed through the prism sheet (36) and has a long directivity characteristic in an r axis direction is converted into light having a substantially circular directivity characteristic by passing through the uneven diffuser plate (37). Furthermore, the light which passed through the uneven diffuser plate (37) and has the substantially circular directivity characteristic is converted into light having a directivity characteristic closer to a perfect circle by the correcting optical sheet (38). The correcting optical sheet (38) is formed of a pattern having many polyhedron shapes.

Abstract: A diffusing board which can suppress moiré fringes, color flickering and screen brightness deterioration on a screen of a liquid crystal display device. On the surface of a transparent board (83), a pattern wherein substantially rectangular shapes are arranged in lattice by using a synthesized pattern (86) is formed. The synthesized pattern (86) is provided by synthesizing a plurality of first uneven patterns (84) having a linear shape which is long in one direction, and a plurality of concave lens shaped second uneven patterns (85) arranged at random.

Abstract: A surface light source device for preventing the coloring phenomenon in the proximity of a spot light source of a light guide plate making up the surface light source device is disclosed. A spot light source of LED or the like is arranged at an edge of the light guide plate. A multiplicity of deflection patterns having a triangular cross section are arranged on the surface of the light guide plate opposite to the light exiting surface. The light entering the light guide plate are reflected on the deflection patterns and exit from the light exiting surface. The deflection patterns including a plurality of types of deflection patterns having different heights are arranged randomly.

Abstract: A point-light-source type light emitting portion faces a light incident face located at a corner portion of a light guide plate. A light diffusion pattern for emitting the light in the light guide plate from a light emission face is on the lower surface of the light guide plate. A diffusion prism sheet is on the light emission face. A prism sheet including prisms each having a concentric shape with the light emitting portion at the center is on the lower surface of the diffusion prism sheet, and an uneven diffusion plate is on the upper surface of the diffusion prism sheet. Light emitted from the light emission face of the light guide plate along the light emission face is deflected in the direction perpendicular to the light guide plate by the prism sheet, and the angle of beam spread of the light is spread by the uneven diffusion plate.

Abstract: A point-light-source type light emitting portion 33 is equipped so as to face a light incident face 37 located at a corner portion of a light guide plate 32. A light diffusion pattern 36 for emitting the light in the light guide plate 32 from a light emission face 45 is equipped on the lower surface of the light guide plate 32. A diffusion prism sheet 35 is disposed on the light emission face 45. A prism sheet 40 comprising prisms each having a concentric shape with the light emitting portion 33 at the center is equipped on the lower surface of the diffusion prism sheet 35, and an uneven diffusion plate 39 is equipped on the upper surface of the diffusion prism sheet 35. Light emitted from the light emission face 45 of the light guide plate 32 along the light emission face 45 is deflected in the direction perpendicular to the light guide plate 32 by the prism sheet 40, and the angle of beam spread of the light is spread by the uneven diffusion plate 39.