S. K. G. Co., Ltd. Patent applications |
Patent application number | Title | Published |
20130044497 | ILLUMINATION DEVICE - This invention is for providing an illumination device obtainable of a wide angle light distribution characteristics required for a spot type or a light bulb type in compliance with environments of an institution or user's favorite, capable of outputting adequately diffused light from the illumination device, with excellent design feature. The invented illumination device includes an electric power receiving section supplied with electric power from an external portion, a power source section connected to the electric power receiving section, converting the electric power into prescribed drive power, a light source section connected to the power source section, emitting light according the drive power, a housing section containing the light source section, and a light guiding section arranged to project from the housing section, outputting, from a branched outgoing surface, the light of the light source section entered from an incident surface. | 02-21-2013 |
20120250353 | MANUFACTURING METHOD FOR LIGHT GUIDE PLATE, LIGHT GUIDE PLATE, BACK LIGHT DEVICE, ILLUMINATION DEVICE, AND PARTITION PLATE DEVICE - It is an object to provide a partition plate device capable of rendering a light guide plate function as a transparent member likewise a window plate and as a light shielding member used as an area light source having a prescribed pattern. The invented partition plate device includes a light guide plate having, on double sides as major surfaces thereof, plural recess pattern scars formed partly melting through vibration of ultrasound under contacting fabrication dots provided in a matrix shape at an ultrasound fabrication horn to major surfaces thereof with pressure; and a light source unit rendering light enter from a side surface of the light guide plate and diffused light occur from the recess pattern scars, wherein the light guide plate functions as a transparent member while no light enters from the light source unit and functions as a light shielding member made of an area light source having a prescribed pattern formed with the recess pattern scars while light enters from the light source unit. | 10-04-2012 |
20120140517 | ILLUMINATION DEVICE - This invention has an object to provide an illumination device capable of selecting freely the contour of the light emitting portions and the light distribution feature according to the shape of the institution installed with this device and to user's desires, suppressing light brightness differences as well as light intensity profile differences due to viewing angle upon improving the light outputting efficiency, and being manufactured with lower costs. The invented illumination device includes plural light guide plates formed with reflection dots reflecting a shape of processing dots by pressing the matrix shaped processing dots provided at an ultrasound processing horn, an LED light source for rendering LED light enter into the light guide plates, and a holding member for holding the LED light source, wherein the plural light guide plates are arranged to have a major surface having the reflection dots to be angled differently. | 06-07-2012 |