Patent application number | Description | Published |
20100170075 | Method of Manufacturing Multicolored Illuminator - A method of manufacturing a multicolored illuminator is disclosed. In an embodiment, a first transparent sheet ( | 07-08-2010 |
20100195349 | Light Source of Varying Thickness - An apparatus and method for a light source are disclosed. The apparatus comprises a light guide including light extracting features and at least one light source placed near an end of the light guide. Light from the light source gets deflected by the light extracting features and emanates in a predetermined pattern along a surface of the light guide. The light guide has different thicknesses in different parts. | 08-05-2010 |
20100283376 | Multicolored Linear Light Source - A multicolored linear light source is disclosed. In an embodiment the multicolored linear light source ( | 11-11-2010 |
20110007512 | Directional Light Source Using Refractive and Reflective Optics - A directional light source comprising refractive and reflective optics is disclosed. In one embodiment, the system comprises refracting apparatus which refracts light into a narrow cone, and reflecting apparatus which recycles light into a direction such that light will emanate from the refracting apparatus in the desired narrow cone. | 01-13-2011 |
20110013387 | Directional Linear Light Source - An apparatus and method for providing a linear light source emitting light in a narrow cone of directions is disclosed. In one embodiment, the apparatus comprises a linear light source and a sheet designed in such a way that light is emanated out in a narrow set of directions. Also disclosed is a directional surface light source using a directional linear light source. | 01-20-2011 |
20110013418 | Apparatus for Efficiently Coupling Light from a Light Source into a Thin Object - An apparatus for efficiently coupling light from a light source into a thin object such as a rod or a sheet is disclosed. In an embodiment, the apparatus comprises a sheet and a linear light source placed along the edge of the sheet. The light from linear light source is coupled into the sheet using one or more concentrator blocks. In another embodiment, the apparatus comprises a rod and a point light source placed near one end of the rod. The light from point light source is coupled into the rod using one or more concentrator blocks. | 01-20-2011 |
20110182050 | Polarized Linear Light Source - An energy efficient polarized linear light source system is disclosed. In one embodiment, the system comprises a reflector and a reflecting polarizer. A transparent linear light source and a quarter wave retarder are placed in between the reflector and reflecting polarizer. The polarized linear light source may be used as an illuminator for an efficient polarized surface light source. | 07-28-2011 |
20110182055 | Photoluminescent Light Source - A photo luminescent light source is disclosed. In one embodiment, the apparatus comprises a light conducting medium. This light conducting medium includes particles of photoluminescent material, and a light source placed along an edge of it. The photoluminescent material absorbs light generated by the light source, and emanates light of the wavelength characterized by the photoluminescence properties of particles. The distribution of light emitting photoluminescent particles is varied throughout the medium to emanate a predetermined light pattern. In another embodiment, the light source emits light of multiple colors. In yet another embodiment, the light source emits polarized light. | 07-28-2011 |
20120014127 | Linear Light Source with Enhanced Light Extraction - Linear light sources with features that enhance light extraction are disclosed. In an embodiment, a linear light guide with one or more reflective faces is oriented in such a manner that deflected light undergoes reduced reflections. In another embodiment, a linear light guide with non-parallel side faces is combined with a particularly shaped reflector. The particular features result in efficient light extraction from linear light guides. | 01-19-2012 |
20120234486 | METHOD OF MANUFACTURING MULTICOLORED ILLUMINATOR - A method of manufacturing a multicolored illuminator is disclosed. In an embodiment, a first transparent sheet ( | 09-20-2012 |
20130069519 | MULTICOLORED LINEAR LIGHT SOURCE - A multicolored linear light source is disclosed. In an embodiment, the multicolored linear light source comprises a linear light source emanating light of a first spectrum, and regions of photoluminescent material. The light of the first spectrum interacts with regions of photoluminescent material to give light of a different spectrum. The composition of different regions of photoluminescent material is different, providing light of different spectra in different regions. Coupled to each region of photoluminescent material is a columnar light guide such that light produced by the regions traverses respective columnar light guides and gets extracted. | 03-21-2013 |
20130279176 | Color Insensitive Scattering Pigment - A color insensitive scattering pigment is disclosed. In an embodiment, the scattering pigment is composed of particles of a range of sizes. In at least one subrange of the range of sizes, the particles are present in such relative proportions that the v/v concentration (volumetric concentration) of a particular size of particles is proportional to the size itself. In an embodiment, such a scattering pigment is included in light guides to scatter light from a primary light source. | 10-24-2013 |
20140091703 | ENERGY EFFICIENT LIGHT SOURCE COMPRISING PHOTOLUMINESCENT MATERIAL AND A SELECTIVE MIRROR - An energy efficient light source comprising photoluminescent material and a selective mirror is disclosed. In an embodiment, a first light source emanates light of a particular spectrum, a layer of photoluminescent material surrounding the first light source absorbs light of the spectrum emanated by the first light source and emanates light of a different spectrum, and a selective mirror surrounding the layer of photoluminescent material reflects light emanated by the first light source and transmits light emanated by the photoluminescent material. | 04-03-2014 |
Patent application number | Description | Published |
20080309856 | Polarized Light Source - An energy efficient polarized light source system is disclosed. In one embodiment, the system comprises a reflector and a reflecting polarizer. A transparent light source and a wave retarder are placed in between the reflector and reflecting polarizer. | 12-18-2008 |
20090009050 | PHOTO LUMINESCENT LIGHT SOURCE - An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, photoluminescent material which converts light from the light source to light of another spectrum, and a selective mirror which reflects light generated by the light source and transmits light generated by the photoluminescent material. The photoluminescent material may be arranged so as to provide a plurality of light sources that emanate light of various colors. | 01-08-2009 |
20090010023 | LIGHT SOURCE HAVING TRANSPARENT LAYERS - A system for providing a light source is disclosed. In one embodiment, the apparatus comprises a light guide made of several transparent layers having different refractive indexes. | 01-08-2009 |
20110316410 | PHOTOLUMINESCENT LIGHT SOURCE WITH LENSES - An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, photoluminescent material which converts light from the light source to light of another spectrum, and a selective mirror which reflects light generated by the light source and transmits light generated by the photoluminescent material. The photoluminescent material may be arranged so as to provide a plurality of light sources that emanate light of various colors. In an embodiment, the photoluminescent material is situated in small regions within a transparent material and lenses are used to collimate light emitted from the small regions. | 12-29-2011 |
20120207458 | CAMERA BEHIND A PHOTOLUMINESCENT LIGHT SOURCE - An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, a camera, and a selective mirror placed between the light source and camera. The selective mirror transmits light of a spectrum detected by the camera and reflects light of a spectrum generated by the light source. The light source is transparent to light incident on its face. | 08-16-2012 |