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"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 8172428 | Optical system with non-circular aperture An optical system, light fixture and method are provided that include a light source, a non-circular aperture, a filter apparatus, and a lens. The light source produces a first beam of light, a portion of which is passed by the non-circular aperture. The filter appa... | 05/08/2012 |
| 8147096 | Lighting fixture zoom device, and lighting fixture comprising said zoom device A zoom device for a lighting fixture has a first lens assembly of positive refractive power; a second lens assembly of negative refractive power; and a third lens assembly of positive refractive power. The first lens assembly, second lens assembly, and third ... | 04/03/2012 |
| 8147095 | Light source A light source contains at least one light-emitting diode installed in the casing or on the base, and a lens system located along the light flux. The lens system comprises a plane-convex lens, a first plane-concave lens, and a composite lens 4 that are locate... | 04/03/2012 |
| 8066408 | Incoupling structure for lighting applications Light incoupling structures for lighting applications, such as lightguides. The incoupling structures include an optically substantially transparent medium for transporting light emitted by a light source and an optical element including at least one hole in the med... | 11/29/2011 |
| 8061873 | Multiple focus point light A lamp unit with a relay lens that allows two different focus points. Two different optical altering elements are hence simultaneously in focus. The elements can be taken in and out of focus to allow different effects. ... | 11/22/2011 |
| 8047684 | LED illuminator with improved beam quality An improved illuminator with an adjustable beam pattern to be worn by medical and dental professionals includes a housing, a light-emitting diode (LED) disposed in the housing outputting light through a distal opening in the housing, an achromatic doublet lens mount... | 11/01/2011 |
| 8042972 | Light assemblies A method for forming a light beam, and a light assembly having at least one light source with a fixed reflector which directs a beam of light light assembly having a front lens, and a light deflecting mechanism for changing the light angle of the light beam after pa... | 10/25/2011 |
| 8029160 | Illumination device having bi-convex lens assembly and coaxial concave reflector An illumination device includes a light source positioned on an illumination axis, a lens assembly having at least two biconvex lenses disposed on the illumination axis, and a reflector having a reflecting surface enclosing the lens assembly. The light source emits ... | 10/04/2011 |
| 8016455 | Optical device for creating an illumination window An optical device for creating an illumination window includes radiation sources and an optical element. The optical element is arranged to create a substantially collimated radiation beam from radiation generated by the radiation sources, in which the radiation gen... | 09/13/2011 |
| 8002439 | Stage projector A stage projector extends along a first axis and is provided with a first optical system having a first focus and designed substantially to generate and concentrate a light beam in the first focus, and a second optical system set downstream of the first focus and ha... | 08/23/2011 |
| 7993027 | Twin beam theatrical light with radial lenticular homogenizing lens A theatre lighting apparatus comprising a base, a communications port, a processor, a memory, and a lamp housing is disclosed. The lamp housing may include a lamp, a reflector, an output lens, a motor, and a homogenizing lens. The homogenizing lens may be comprised ... | 08/09/2011 |
| 7988334 | Illuminating device with adjustable illumination range An illuminating device includes a housing, a light source module, and a plurality of replaceable optical elements. The light source module is positioned in the housing for emitting light having an initial illumination range. The optical elements are configured for r... | 08/02/2011 |
| 7976194 | Sealing and thermal accommodation arrangement in LED package/secondary lens structure An LED apparatus of the type having a mounting board, an LED package thereon with a primary lens, and a secondary lens member over the primary lens and establishing a light path therebetween, includes a resilient member against the secondary lens member in position ... | 07/12/2011 |
| 7942554 | Lighting device with adjustable spotlight beam A lighting device has a light source, a first magnifier lens, a second magnifier lens, and an adjusting mechanism. The light source generates a light beam. The first magnifier lens is disposed in a path of the light beam. The second magnifier lens is disposed in the... | 05/17/2011 |
| 7942553 | Lighting device and optics package therefor A lighting device is generally illustrated having a light body having forward facing light sources including a visible white light source, visible colored light source and an infrared light source. Additionally, a side facing light source is provided. The light body... | 05/17/2011 |
| 7891843 | LED lighting device An LED lighting device is provided, which does not create dazzling effects, has no difference in brightness in accordance with viewing angles, and has superior interior effects. The LED lighting device includes an LED irradiating light onto an outside, a first lens ... | 02/22/2011 |
| 7887219 | Twin beam theatrical light with radial lenticular homogenizing lens A theatre lighting apparatus comprising a base, a communications port, a processor, a memory, and a lamp housing is disclosed. The lamp housing may include a lamp, a reflector, an output lens, a motor, and a homogenizing lens. The homogenizing lens may be comprised ... | 02/15/2011 |
| 7857487 | Miniaturized linear light source sub-module for various format main modules A miniaturized linear light source sub-module comprising a symmetrical lens array, a light guide bar with dual reflecting surfaces, at least one light emitting diode light source, and a sub-module housing is disclosed. The symmetrical lens array comprises two identi... | 12/28/2010 |
| 7841744 | Illumination apparatus The illumination apparatus comprises a light source unit which has a LED for emitting illumination light, and a condenser lens for collecting the illumination light, and a main body of the illuminator of the apparatus which holds the light source unit and guides the... | 11/30/2010 |
| 7841743 | Lighting apparatus A lighting apparatus includes a reflector, a light source, and a lens unit. The reflector has an open side, and a reflective surface that extends from a periphery of the open side and that defines a compartment. The light source is disposed in the compartment and em... | 11/30/2010 |
| 7841745 | Image display apparatus An image display apparatus includes an image forming device having pixels; a collimating optical system collimating light from the image forming device; and an optical device receiving, guiding, and outputting the collimated light as directional rays in different di... | 11/30/2010 |
| 7837357 | Combined illumination and imaging system An illumination system has a light source, an optical train, and a wavelength beam splitter. The optical train focuses light from the light source into a defined geometrical pattern on a surface. The wavelength beam splitter transmits light of a first wavelength and... | 11/23/2010 |
| 7726843 | Multiple focus point light A lamp unit with a relay lens that allows two different focus points. Two different optical altering elements are hence simultaneously in focus. The elements can be taken in and out of focus to allow different effects. ... | 06/01/2010 |
| 7648256 | Lighting system having lenses for light sources emitting rays at different wavelengths A lighting system includes a first light source emitting first light rays; a second light source emitting second light rays, a first lens side which refracts the first and second light rays and collimates the refracted light rays; a second lens side which includes a... | 01/19/2010 |
| 7645055 | Luminaire optical assembly A luminaire assembly includes a housing having a first end and a second end, one of the first end and the second end having a threaded connection, a glass lens and a collar assembly connected to said lens, the collar assembly threadably connected to the housing. A l... | 01/12/2010 |
| 7625101 | Lighting device with adjustable spotlight beam A lighting device has a light source, a light pipe, two convex magnifying lenses, and an adjusting mechanism for moving the two magnifying lenses relative to the light source. The light emitted from the light source is dispersed and directed into the light pipe by a... | 12/01/2009 |
| RE40934 | Bollard luminaire The improved bollard luminaire has an upwardly directed, elliptical main reflector and a lamp “nested” within such reflector and positioned at or near its lower focal point. An upper cone-shaped reflector receives light from the main reflector and directs it lat... | 10/13/2009 |
| 7597459 | Converging element and illuminating device An LED light source is formed of an LED and an angle control lens. The angle control lens includes a transparent member in a shape of a rotational symmetry, and includes a center convex curved surface area (light-emission area) A1, a peripheral curved surface... | 10/06/2009 |
| 7527394 | Image-displaying apparatus An image-displaying apparatus comprising a light-emitting diode, a relay lens, a secondary light source-forming prism arranged between the light-emitting lens and the relay lens, and a light valve, said secondary light source-forming prism having opposed first and s... | 05/05/2009 |
| 7524088 | Light source unit and projector system A light source unit includes a light source made up of a reflector having a lamp accommodating opening and a light exiting opening, and a lamp having a bulb for emitting light and electrode introducing portions which guide electrodes into the bulb. In addition, the ... | 04/28/2009 |
| 7497594 | Illuminating device and projector An illuminating device includes: a lamp device that includes a lamp body, which is a light source, and a concave reflector for reflecting light emitted from the lamp body; and a lens member that has a planar optical surface and a nonplanar optical surface opposite t... | 03/03/2009 |
| 7484862 | Light source apparatus and image display apparatus A light source apparatus is disclosed which is capable of emerging predetermined linearly polarized light while a loss of light amount is reduced. The light source apparatus comprises plural light-emitting elements which are disposed so that their light-emitting sur... | 02/03/2009 |
| 7452105 | Optical system for a wash light A wash light optical system for use with a light beam generator includes a converging optical element that reduces the size of a light beam from the light beam generator, a color filtration mechanism that is capable of filtering the reduced light beam to a selected ... | 11/18/2008 |
| 7427146 | Light-collecting illumination system Light-collecting illumination systems are disclosed, which include a light source module, a first meniscus lens having a convex side and a concave side and a second meniscus lens having a convex side and a concave side. The concave side of the second meniscus lens i... | 09/23/2008 |
| 7388322 | Illumination device for microscopes The invention is directed to an illumination device for microscopes which is provided with a halogen lamp with a reflector and a filament extending in direction of the optical axis and a scatter disk and which enables a homogeneous illumination of the visual field w... | 06/17/2008 |
| 7380962 | Optical manifold for light-emitting diodes An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosp... | 06/03/2008 |
| 7370992 | Projector A projector comprises a light source, an Ultraviolet/Infrared Radiation (UV/IR) filter, a color wheel and means for guiding the light beam reflected by the color wheel toward directions away from the light source. The light source is for providing a light beam. The ... | 05/13/2008 |
| 7368702 | Multi-optical-path photoelectric safety apparatus A multi-optical-path photoelectric safety apparatus or a light curtain is placed in front of a pressing machine or a folding machine. Optical paths are set as a floating blanking area B (some paths out of a large number of optical paths) in the light curtain. The op... | 05/06/2008 |
| 7367692 | Light bulb having surfaces for reflecting light produced by electronic light generating sources The present light bulb uses electronic light generating sources and serves as a replacement for incandescent lamps or other lamps or so-called “light bulbs.” The light bulb is comprised of a plurality of individual light sources, such as light emitting diodes (L... | 05/06/2008 |
| 7364324 | Discharge lamp having integrated ballast support An integrated projector for discharge lamps includes a projector, having a discharge lamp, and a support fork shaped structure for the projector. The fork shaped structure provides two substantially vertical elements, provided laterally with respect to the projector... | 04/29/2008 |
