| Patent Number |
Title Of Patent |
Date Issued |
| 7308187 |
Bar-shaped light guide, illumination unit and image-scanning device |
December 11, 2007 |
| A bar-shaped light guide is provided to allow its emitting surface to be exposed from a white casing and is provided with a pattern for scattering and reflecting the light on a bottom surface opposite to the emitting surface. This pattern is formed by a white paint or minute irregula |
| 7284891 |
Line illuminating device and image-scanning device incorporating line-illuminating device |
October 23, 2007 |
| A line-illuminating device which is resistant to shrinkage problems caused by repetition of heating and cooling includes a white casing made of polycarbonate or the like, a light guide made of an acrylic resin or the like and accommodated in the casing such that the light-emitting surfac |
| 7125151 |
Line-illuminating device and image sensor |
October 24, 2006 |
| A light guide 11 of a rectangular cross-section has side faces 11a, 11b including short sides in the longitudinal direction of which one side face 11a is provided with a light-scattering pattern 20, formed by screen-printing in white paint, for scattering the light incident to the li |
| 6902309 |
Light-emitting unit and illumination device and image reading device using light-emitting unit |
June 7, 2005 |
| A light-emitting unit 20 has a light-emitting unit board 21 made of resin provided with a lead frame 22. The light-emitting unit board 21 is also provided with an open window 21a for mounting a light-emitting device. The lead frame 22 comprises a lead terminal section 22a, an inner lead |
| 6808280 |
Line-illuminating device |
October 26, 2004 |
| A line-illuminating device 10, 20 having a light guide 11, 21 of which the cross-sectional shape is rectangular and its one corner is chamfered to form an emission plane 11a, 21a is provided, in which the light guide 11, 21 is housed in a light guide casing 12, 22, wherein the chamfer di |
| 6357903 |
Line type illuminator |
March 19, 2002 |
| A line type illuminator comprising a plurality of light sources at a side of one end of a rod-like transparent light guide, wherein an auxiliary light scattering pattern is formed with two (2) spot-like patterns, which are provided at positions being shifted from a center line of a main |
| 6017130 |
Line illumination device |
January 25, 2000 |
| In a line illumination device, a light source is provided at one end of a rod-like transparent light guiding member, for maintaining high and uniform illuminance, and the shape of a light scattering pattern 11 has: a first portion 11a gradually increasing in area from one end to the othe |
