Abstract: To suppress unevenness in intensity distribution of output light in a longitudinal direction of a light guide body, a lighting apparatus includes a rod-shaped light guide body, and light source units provided in end faces of the body, where the light guide body includes first and second reflecting surfaces that perform diffuse reflection on light input from the light source, and a light output surface that outputs reflected light from both of the reflecting surfaces to the outside. The first reflecting surface includes a first diffuse reflection pattern having discontinuous pattern portions provided near the end faces in the longitudinal direction of the light guide body and a continuous pattern portion in the center portion, and the second reflecting surface includes a second diffuse reflection pattern to reduce a ripple in the longitudinal direction of a quantity of the light reflected from the first diffuse reflection pattern and output.

Abstract: To suppress unevenness in intensity distribution of output light in a longitudinal direction of a light guide body, a lighting apparatus includes a rod-shaped light guide body, and light source units provided in end faces of the body, where the light guide body includes first and second reflecting surfaces that perform diffuse reflection on light input from the light source, and a light output surface that outputs reflected light from both of the reflecting surfaces to the outside. The first reflecting surface includes a first diffuse reflection pattern having discontinuous pattern portions provided near the end faces in the longitudinal direction of the light guide body and a continuous pattern portion in the center portion, and the second reflecting surface includes a second diffuse reflection pattern to reduce a ripple in the longitudinal direction of a quantity of the light reflected from the first diffuse reflection pattern and output.

Abstract: To provide an illumination device in which there is no variation in light intensity distribution of the illumination device, and in which illumination spots, particularly light intensity spots, are not prone to occur in a read image in an image reading device, by maintaining a constant gap between a light source and an end face of a light guide. The illumination device includes: a light guide having an end face for taking in light, a diffuse reflecting surface for diffusely reflecting the light taken in from the end face, and a light exit surface for emitting the light that is diffusely reflected at the diffuse reflecting surface towards an irradiation surface. The illumination device further include a reflector having a diffuse reflecting surface that reflects light from the light source toward the one end face of the light guide.

Abstract: Provided is an image scanning unit which makes it possible to improve scanning accuracy while also making the overall body thinner by appropriately positioning a plurality of reflection members within an effective space in a carriage frame without wasting space.

Abstract: An apparatus is provided capable of guiding regular reflected light from a reading surface to a reflecting mirror when light is irradiated from two directions from light sources to the reading surface, and is suitable to read a gloss image. The light sources for irradiating light to the reading surface from the two directions of different angles are configured of a first light emitter and a second light emitter, a mirror reflecting surface for specularly reflecting light and a translucent surface for passing light therethrough being formed on the surface of a reflecting member for deflecting light from the reading surface to a predetermined reading light path direction, the first light emitter being arranged between the platen and the platen side surface of the reflecting member, the second light emitter being arranged at the back surface of the reflecting member so as to irradiate light on the reading surface through the translucent surface.

Abstract: Provided is an image scanning unit which makes it possible to improve scanning accuracy while also making the overall body thinner by appropriately positioning a plurality of reflection members within an effective space in a carriage frame without wasting space.

Abstract: To provide an illumination device in which there is no variation in light intensity distribution of the illumination device, and in which illumination spots, particularly light intensity spots, are not prone to occur in a read image in an image reading device, by maintaining a constant gap between a light source and an end face of a light guide. The illumination device includes: a light guide having an end face for taking in light, a diffuse reflecting surface for diffusely reflecting the light taken in from the end face, and a light exit surface for emitting the light that is diffusely reflected at the diffuse reflecting surface towards an irradiation surface. The illumination device further include a reflector having a diffuse reflecting surface that reflects light from the light source toward the one end face of the light guide.

Abstract: An apparatus is provided capable of guiding regular reflected light from a reading surface to a reflecting mirror when light is irradiated from two directions from light sources to the reading surface, and is suitable to read a gloss image. The light sources for irradiating light to the reading surface from the two directions of different angles are configured of a first light emitter and a second light emitter, a mirror reflecting surface for specularly reflecting light and a translucent surface for passing light therethrough being formed on the surface of a reflecting member for deflecting light from the reading surface to a predetermined reading light path direction, the first light emitter being arranged between the platen and the platen side surface of the reflecting member, the second light emitter being arranged at the back surface of the reflecting member so as to irradiate light on the reading surface through the translucent surface.