| Patent Number |
Title Of Patent |
Date Issued |
| 7224494 |
Image reading apparatus, its light source, and shading correcting apparatus |
May 29, 2007 |
| In an image reading apparatus using a contact image sensor, an area light source for reading an image from a film original is provided. The area light source has a light guide plate and an LED device in the center of a side surface on the shorter side of the plate. In the LED device, red |
| 7048427 |
Planar light source device and image reading device |
May 23, 2006 |
| A planar light source device comprises a light guide member having light scattering members for scattering light on the rear face of it, and a first LED module and a second LED module arranged on an end face of the light guide member. The light guide member has an area having no light |
| 6776494 |
Planar light source and method for forming a light scatterer for a planar light source |
August 17, 2004 |
| A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet |
| 6502946 |
Planar display lamp and method of forming a light scatterer pattern |
January 7, 2003 |
| A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet |
