| Patent application number | Description | Published |
|---|
| 20090027739 | Image sensor - An image sensor includes an elongated case, a light source provided in the case, a light guiding member elongated in a longitudinal direction of the case and configured to direct light emitted from the light source toward a document to be read, an optical system for collecting light reflected by the document, a sensor IC chip for receiving the light collected by the optical system, and a substrate attached to the case. The substrate is provided with a wiring pattern and carries the sensor IC chip. The case is provided with a plurality of supporting projections spaced apart from each other in the longitudinal direction. The supporting projections are held in contact with the side surface of the light guiding member. | 01-29-2009 |
| 20090080213 | Light guide and image sensor module - An elongated and generally columnar light guide includes a light receiving surface provided at an longitudinal end portion of the light guide, a reflecting surface elongated in the longitudinal direction of the light guide for reflecting light entering through the light receiving surface in a light emitting direction, a ridge elongated in the longitudinal direction of the light guide, and a light emitting surface for emitting reflected light from the reflecting surface as linear light extending in the longitudinal direction of the light guide. The reflecting surface is provided on a distal end portion of the ridge. | 03-26-2009 |
| 20090201675 | Linear light source device - A linear light source device includes a transparent light guide member of an elongate shape having a longitudinal axis. The light guide member includes a first end, a second end and a main body sandwiched between the first end and the second end. The linear light source device further includes a light emission unit arranged to face a light incident surface of the first end. The first end includes an entering-light controlling portion having a diameter which increases as progressing from the light incident surface toward the main body. The entering-light controlling portion changes the direction of the light emitted from the light emission unit. | 08-13-2009 |
| 20090237747 | Image reader, light guide used for the same, and method of making light guide - An elongate light guide includes a light incident portion provided at an end in the longitudinal direction of the guide, a light reflecting portion extending in the longitudinal direction, a light emitting portion extending in the longitudinal direction for emitting linear light, and a scatterer for scattering the light entering through the light incident portion. For instance, the scatterer is provided as a grained portion formed at least part of the reflecting portion. | 09-24-2009 |
| 20100046045 | IMAGE READING APPARATUS - An image reading apparatus of the present invention includes a first light source, a first light guide, a second light source, a second light guide, light receiving elements and a lens unit. The first light source emits first light. The first light guide directs the first light from the first light source toward an image-carrying object as first linear light extending in a primary scanning direction. The second light source emits second light of a wavelength different from that of the first light. The second light guide directs the second light from the second light source toward the image-carrying object as second linear light extending in the primary scanning direction. The light receiving elements are arranged in the primary scanning direction. The first and second linear lights are reflected by the image-carrying object, and the reflected lights are guided by the lens unit toward the light receiving elements. | 02-25-2010 |
