Abstract:
An illumination apparatus includes: a light guide that is formed in a rod shape and includes a positioning portion that is formed at one end in a longitudinal direction, and light incident surfaces that are formed at two end faces in the longitudinal direction; and light sources that are arranged in the vicinity of the light incident surfaces, respectively, and that emit light that is incident on the incident surfaces. The light guide is formed by injection molding. A gate portion for supplying a resin material during injection molding opens at a position that corresponds to a tip face of the positioning portion.
Abstract:
An illumination apparatus has a first longitudinal light source section that includes a first substrate and a second substrate on which a plurality of light sources are arranged in a line in the longitudinal direction, and a second longitudinal light source section that includes a third substrate and a fourth substrate on which a plurality of light sources are arranged in a line in the longitudinal direction. The first longitudinal light source section and the second longitudinal light source section are arranged side by side in the short direction. The plurality of light sources on the first longitudinal light source section and the plurality of light sources on the second longitudinal light source section are displaced from each other in the longitudinal direction of the first longitudinal light source section and the second longitudinal light source section.
Abstract:
An image sensor unit includes a light source that emits light, and a light guide that guides the light from the light source to an object to be illuminated. The light guide includes a linearly elongated rod-like rod portion provided with a light emission surface from which light is emitted to the object to be illuminated, and a curved portion which is integrally connected to an end in the longitudinal direction of the rod portion, includes a light entering surface where the light emitted from the light source is emitted on an end of a side opposite to the rod portion and in which the center line is curved. A reflection member that reflects light is provided to be in close contact with at least a part of a surface of the curved portion.
Abstract:
An illumination apparatus includes a light source and an elongated light guide, wherein the light guide includes an emission surface that emits light from the light source and a reflection surface that reflects the light to the emission surface, the reflection surface includes a plurality of diffusion portions that diffuse the light, the diffusion portions have a shape of part of a sphere recessed from the reflection surface, a depth of the diffusion portions from the reflection surface is equal to or greater than 16.5% and equal to or smaller than 50% of a diameter of the sphere, and a width of the diffusion portions is equal to or greater than 0.1 mm and equal to or smaller than 50% of a width of the reflection surface.
Abstract:
An illumination apparatus includes: a rod-like light guide member that directs light emitted from a first light source and a second light source from an emission surface to an illuminated body while propagating the light by reflection surfaces; and a light blocking member including a second surrounding portion slidably covering another end of the light guide member, wherein the second surrounding portion includes: a light blocking portion protruding toward one end of the light guide member and covering the emission surface of the light guide member; and a cut-out portion adjacent to the light blocking portion and exposing the reflection surface of the light guide member.