摘要:
A first liquid crystal lens and a second liquid crystal lens are provided on both sides of an intermediate glass plate. The first liquid crystal lens is provided for forming an inverted image of an object, and the second liquid crystal lens is provided for inverting the inverted image, thereby forming an erecting image of the object.
摘要:
There is provided a pair of transparent upper and lower glass substrates which are disposed apart from each other so as to form a space there-between, a pair of electrodes provided on the underside of the upper substrate and on the upper surface of the lower substrate. A plurality of circular holes are formed in each of the electrodes. A liquid crystal is charged in the space. The liquid crystal has a lens construction formed by an electric current and hardened by irradiation of ultraviolet rays.
摘要:
A back light unit including a light source, a light guiding plate having an entrance surface to receive light emitted from the light source, a first emission surface and a second emission surface, a semi-transmissive/reflective member disposed to face one of the first emission surface and the second emission surface, and a chromatic correcting member, the semi-transmissive/reflective member having an incident surface to receive light emitted from one of the first emission surface and the second emission surface and an exit surface, the chromatic correcting member being configured to correct chromaticity of light emitted from the exit surface of the semi-transmissive/reflective member and emit corrected light.
摘要:
A sheet light emitting apparatus, including a light guiding plate of a translucent material and having light receiving and light emitting surfaces, a light source disposed to face the light receiving surface, and a prism structure provided on the light receiving surface, the prism structure having plural kinds of prisms having different apex angles.
摘要:
A planar light source has a light emitting source, and a light guide plate for receiving light beams emitted from the light emitting source at a front side thereof and changing direction of the light beams, discharging the light beams from an upper surface thereof. A first anisotropic diffusion surface is formed on a lower surface of the light guide plate, and a reflection member is provided on the first anisotropic diffusion surface. The first anisotropic diffusion surface is a hologram diffusion surface or a hairline diffusion surface.
摘要:
A hand scanner has a linear image sensor provided for reading an image. An X-roller is disposed in an X-direction and a Y-roller is disposed in a Y-direction perpendicular to the X-direction. A spherical ball is provided to project a part thereof from an opening. The X-roller and the Y-roller are urged to the spherical ball. Angular positions of the X-roller and Y-roller are detected so as to provide coordinate signals.
摘要:
A planar light-emitting device enabling more precise local dimming has a plurality of light-emitting units each including a lightguide plate and a plurality of light sources disposed successively in the lateral width direction of the light-entrance surface and adjacently facing a light-entrance surface of the lightguide plate to emit light into the lightguide plate through the light-entrance surface. The light sources are divided into a plurality of groups successively arranged in the width direction, each group including at least one light source. The lightguide plates of the light-emitting units are mutually adjacently disposed with their light-exiting surfaces being flush with each other. The planar light-emitting device has a light source output control unit that controls the outputs of the light sources for each group.
摘要:
An edge-light type light guide plate (30) is provided that has a first surface (31) and a second surface (32) that are opposed to each other, and a peripheral edge surface extending between the peripheral edges of the first and second surfaces. A part of the peripheral edge surface is defined as a light entrance plane (30a). The first surface (31) has a series of parallel elongated raised surfaces (31a) of arcuate cross-section that extend in a direction substantially normal to the light entrance plane (30a). The second surface (32) has a series of parallel elongated recessed surfaces (32a) of triangular cross-section that extend in a direction substantially normal to the elongated raised surfaces (31a) on the first surface.
摘要:
A planar light source unit including a light guiding plate (1) having an anisotropic diffusing surface (1h) which emits anisotropic diffusion light, and a light emitting source (2) for supplying light to the light guiding plate, the anisotropic diffusing surface being formed into a shape configured to give a gradation of the anisotropic diffusion light intensity.