Class / Patent application number | Description | Number of patent applications / Date published |
362582000 | Specific material (e.g., type of light conducting material, material of pipe or rod) | 13 |
20080316766 | WAVEGUIDE AND LIGHT EMITTING DEVICE HAVING THE SAME - A waveguide based on a three-dimensional photonic crystal is arranged to provide wave-guiding in a single mode and a mode having a field strength distribution with unimodality in a plane perpendicular to the wave-guiding direction, to thereby enable wave-guiding in a desired frequency band, wherein the three-dimensional photonic crystal has a plurality of line defect members which include a first line defect member made of a medium having a refractive index not smaller than that of the columnar structures and formed in a direction perpendicular to the direction in which the columnar structures extend, and a second line defect member formed in the same direction as the first line defect member. | 12-25-2008 |
20090027917 | OPTICAL FIBER INDICATOR LIGHT - The optical fiber indicator light includes a lighting device, an optical fiber and an optical guiding structure. The optical fiber has a first optical fiber point a second optical fiber point. The first optical fiber point is abutted on the lighting device and the second optical fiber point is opposed against the first optical fiber point. The optical guiding structure has a lens, a passage, and an air chamber connected with the passage. The air chamber is located behind the lens. A portion of the optical fiber is contained in the passage, and the second optical fiber point is placed in the air chamber. Light emitted from the optical fiber may be diffused by the air chamber to enlarge visible area of the optical fiber. | 01-29-2009 |
20090279323 | HEAT DISTRIBUTION IN A DISTRIBUTED LIGHTING APPARATUS - Described herein is an apparatus which is, under a range of atmospheric conditions, capable of maintaining the emission of light at a point remote from a light source. Notably, the apparatus is able to heat and distribute a fluid, and by doing so, prevents condensation and ice from forming which could hamper the emission of light. The apparatus comprises a light source and a light emitter, with a light conduit and a fluid conduit running between. | 11-12-2009 |
20100246208 | Light guide plate - A light guide plate comprises: a rectangular light exit plane and at least one light entrance plane in contact with the light exit plane, wherein the light guide plate comprises three or more structural layers disposed on each other in a direction normal to the light exit plane, each structural layer containing scattering particles dispersed therein, the structural layers having different particle densities of scattering particles. | 09-30-2010 |
20100290244 | Liquid light guide having position retaining function - An illumination apparatus comprises an irradiation source | 11-18-2010 |
20100290245 | ILLUMINATION APPARATUS HAVING HOMOGENIZED RADIATION - A liquid light guide | 11-18-2010 |
20110188262 | LIGHT CONDUCTIVE PLATE AND MANUFACTURING METHOD THEREOF - There is provided a light conductive plate comprising: a resin sheet; and a plurality of concave dots formed on a surface of the resin sheet, wherein each concave dot in section includes a general formed portion in which to be continuously formed from an opening end portion of the concave dot toward a deep portion thereof, and a discontinuous formed portion that is fabricated at the deepest portion of the general formed portion. | 08-04-2011 |
20120182758 | LIGHT GUIDE ASSEMBLY AND OPTICAL ILLUMINATION APPARATUS - The invention improves the optical transmission of a light guide assembly in an optical illumination apparatus achieved by one or more insulation layers which sheath a rigid or flexible light guide rod of the light guide assembly and/or the coupling of light emitted from a radiation source into the light input surface of the light guide rod is improved by an adapter element. Important for the improved transmission in the light guide rod is a highly viscous liquid layer which is in direct contact with the lateral surface of the light guide rod and which includes a perfluoropolyether, particularly Krytox®, Fombline® or Galden®, e.g. Krytox® 16350. | 07-19-2012 |
20120250346 | EDGE-LIT LIGHTING PRODUCT - An edge-lit lighting product or luminaire includes a light guide made of a single, transparent material and demonstrates properties of total internal reflection with respect to a surrounding environment. The light guide has a thickness and includes a proximal edge, a distal edge and a boundary surface. The proximal edge receives light from a light source. The distal edge is spaced apart from the proximal edge, is configured to emit at least a portion of the light from the light source, spans across a first distance and has a substantially axial symmetric surface. The first distance is greater than the thickness of the light guide. The boundary surface extends between the proximal edge and the distal edge and defines a boundary between the single, transparent material of the light guide and the surrounding environment of the light guide. At least a portion of the boundary surface is curved. | 10-04-2012 |
20140355297 | OPTICAL COMPONENTS FOR LUMINAIRE - An optical component has an elongate length extending between first and second ends and a width transverse to and substantially smaller than the length and extending between first and second sides. The optical component includes a refractive portion disposed between the first and second sides and extending along the length between the first and second ends, and a plurality of separate reflective portions. At least one of the plurality of separate reflective portions is spaced from the refractive portion and extending along the length between the first and second ends. | 12-04-2014 |
20150332810 | ILLUMINABLE TRANSMISSION CABLE - An illuminable transmission cable includes an electrical conductor, a light-diffusing fiber having a glass core and a cladding, at least one of the glass core and a core-cladding interface having a plurality of scattering structures. The light-diffusing fiber is configured to optically couple with a light source which emits light into the light-diffusing fiber. The scattering structures are configured to scatter the emitted light and output the emitted light along at least a portion of a sidewall of the light-diffusing fiber. A light transmissive jacket surrounds the electrical conductor and the light-diffusing fiber. | 11-19-2015 |
20160116671 | LIGHT-DIFFUSING OPTICAL FIBER HAVING NANOSTRUCTURED INNER AND OUTER CORE REGIONS - A light-diffusing optical fiber having nanostructured inner and outer core regions is disclosed. The nanostructured inner core region is defined by a first configuration of voids that defines a first amount of light scattering. The outer core region is defined by a second configuration of voids that defines a second amount of light scattering that is different from the first amount of light scattering. A cladding surrounds the nanostructured core. Light scattered out of the inner core region scatters from the outer core region and then out of the cladding as scattered light. Selective bending of the light-diffusing optical fiber is used to define a bending configuration that allows for tailoring the intensity distribution of the scattered light emitted from the fiber as a function of the length of the fiber. | 04-28-2016 |
20160178838 | LIGHT CYLINDER, DISPENSER, AND LIGHT CYLINDER MANUFACTURING METHOD | 06-23-2016 |