In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 8104930 | LED module An LED module includes an LED and a lens covering the LED. The LED has an optical axis. The lens has an incident face for incidence of light of the LED into the lens and an opposite emitting face for refracting the light of the LED out of the lens. The emitting face... | 01/31/2012 |
| 7841750 | Light-directing lensing member with improved angled light distribution A light-directing lensing member for off-axial preferential-side distribution of light from a light emitter having an emitter axis, including a base end with a perimeter-loop line defining a main plane transverse the emitter axis, and an outer surface configured for... | 11/30/2010 |
| 7674019 | Free-form lenses for rectangular illumination zones A light source emits light into a solid angle exceeding pi steradians with a known intensity distribution. An illumination lens has a first surface that receives at least 90% of the light of the known intensity distribution and has a shape that transforms the known ... | 03/09/2010 |
| 7517116 | Contoured lens for task ambient luminaires A lens is provided for a task ambient luminaire having an elongated linear lamp tube for providing light, the lens including a refractive surface configured to extend along a portion of a length of the lamp and further configured to extend across the lamp in a direc... | 04/14/2009 |
| 7322720 | Traditional style post-top luminaire with relamping module and method A luminaire adapted to being mounted at the top of a post having a design reducing maintenance costs. The luminaire has a capital with a globe mounted thereon forming an optical chamber, the capital has a front access area with a front access door hingedly attached ... | 01/29/2008 |
| 7300185 | Quadrilateral symmetrical light source A reflector for focusing light emitted from a light source in a generally planar direction is disclosed. The reflector is matched with the light source that is preferably a light emitting diode (LED) mounted on a substrate. The reflector is mounted over the LED on t... | 11/27/2007 |
| 7270448 | Light fixture having at least two LEDs directed toward curved surface of reflector In a preferred embodiment, an apparatus, including: a light fixture having a concave reflector disposed on a rear surface thereof; and at least one LED directed at a concavity of the concave reflector. ... | 09/18/2007 |
| 7229196 | Illumination device for simulating neon or similar lighting in the shape of a toroid An illumination device has a light-transmitting member formed in the shape of a toroid having a light-receiving surface and a light-emitting surface, the light-transmitting member defining a central axis, a light source located along the light-transmitting member ce... | 06/12/2007 |
| 7207700 | Near field lens with spread characteristics A near field lens is for an automotive light assembly, generally comprising a central body positioned between opposing side bodies. The central body extends in a vertical direction, while the side bodies are positioned on horizontal sides of the central body. The op... | 04/24/2007 |
| 7204627 | Lamp unit for forming a cut-off line and vehicular headlamp using the same A lamp unit for a vehicular headlamp includes a projection lens disposed on an optical axis extending in a vehicle longitudinal direction and a semiconductor light-emitting element having a light-emitting chip with a lower end edge formed linearly. The semiconductor... | 04/17/2007 |
| 7168832 | Vehicle headlamp As the annular translucent member, an annular lens formed from a peripheral edge portion of a convex-meniscus lens is disposed between a projection lens and a reflector along an outer peripheral edge of the projection lens. Direct light from a light source toward a ... | 01/30/2007 |
| 7160522 | Device for concentrating or collimating radiant energy This invention consists in a nonimaging device for concentration or collimation of radiation on a receiver or from an emitter (14), depending on the case. The device is made up of the lens (50), which surrounds the receiver and consists of the aspheric... | 01/09/2007 |
| 7134768 | LED lamp with light guide Light emitted from a plurality of LED light sources can be introduced into a light guide and inwardly reflected (totally reflected) at a first reflective surface formed on the light guide to form a substantially collimated light. The substantially collimated light c... | 11/14/2006 |
| 7123419 | Collimating and optical elements with reduced mass A lens for substantially collimating light in one axis and spreading light in an axis substantially perpendicular to the collimation axis including a lens an entry face which is positive and cylindrical, having a cross-section which includes the positive cylindrical... | 10/17/2006 |
| 7025476 | Prismatic reflectors with a plurality of curved surfaces A substantially bell-shaped light fixture component for use with a lighting fixture, the light fixture component having upper and lower openings and curved or undulating segments on the light fixture component body that diffuse light from the light source used in co... | 04/11/2006 |
| 6974235 | Prismatic structures having shaped surfaces Prismatic structures having at least certain conventionally linear surfaces thereof configured in a non-linear fashion to control the direction of light exiting said structures, the invention functions to reduce light losses in a luminaire or the like while facilita... | 12/13/2005 |
| 6937791 | Optical coupling apparatus and method Apparatus and method for focusing light from an extended light source onto a secondary focal point (such as an input end of a light guide element). The apparatus includes a solid conic body formed in accordance with an ellipse, off axis paraboloid, or other conic sh... | 08/30/2005 |
| 6923559 | Radiation-pattern-matched light-diffusing pattern for light guide edge-illuminated by a directional light source An apparatus for illumination comprises a light source operable to generate a radiation pattern. The apparatus further comprises a light guide adjacent the light source, which is operable to be illuminated by the radiation pattern. The light guide comprises a patter... | 08/02/2005 |
| 6910785 | Industrial luminaire with prismatic refractor An industrial luminaire with a prismatic refractor including an interior surface formed as an open-ended surface of revolution of a plane curve about a rotational axis, the plane curve having a plurality of segments corresponding to segments on a reference curve whi... | 06/28/2005 |
| 6786619 | Reflector/refractor light control luminaire A luminaire globe member formed of light transmissive material and having a reflector section and a refractor section, light from a light source such as a high intensity discharge lamp initially impinging on at least major portions of the reflector section being ref... | 09/07/2004 |
| 6568822 | Linear illumination source Shaped refractive articles having compound curved surfaces enable a light source to provide substantially uniform illumination of a linear or planar target. The refractive articles can comprise an input edge or face and an output edge or face, the input e... | 05/27/2003 |
| 6547423 | LED collimation optics with improved performance and reduced size An LED module that includes an LED (light-emitting diode) and a rotationally symmetrical, bowl-shaped collimator lens is provided. The collimator lens has an inner refractive wall, an outer reflective wall, a first surface having an entrance aperture with... | 04/15/2003 |
| 6530679 | Light emitting device There is provided a light emitting device in this invention comprises a light source for supplying light, and plural light scattering devices disposed in front of the light source so as to be opposite to the direction of the light. Each of the light scatt... | 03/11/2003 |
| 6505961 | Method of evaluating basic curved surface for reflecting mirror, evaluation system for evaluating basic curved surface for reflecting mirror, and computer-readable storage medium There are provided a method of evaluating a basic curved surface for a reflecting mirror, an evaluation system for evaluating a basic curved surface for a reflecting mirror, and a computer-readable storage medium on which a program is recorded. There are ... | 01/14/2003 |
| 6352359 | Vehicle light assembly including a diffuser surface structure A vehicle light assembly includes a lens cover from which light emanates. A light shaping surface microstructure is carried in a portion of the light assembly. The microstructure can be incorporated into many different surfaces of the light assembly such ... | 03/05/2002 |
| 6273591 | Indicator lights for motor vehicles An indicator light for a motor vehicle has a point source, an intermediate screen which receives the light directly from the source, and a cover glass outside the screen. The intermediate screen comprises a series of optical cells, each of which has, on a... | 08/14/2001 |
| 6231221 | Indicating light unit with a flux recovery and distributor mechanism disposed between a light source and an optical plate that controls illumination of the illuminating area, and a method of manufacturing the mechanism for a light unit of this kind A motor vehicle indicating light unit comprises a light source, an optical plate having optical arrangements to redirect the light from the region of the source so that it propagates with a mean direction generally parallel to a horizontal optical axis an... | 05/15/2001 |
| 6027231 | Luminaire assembly An improved luminaire assembly having an HID lighting source with an upper reflector portion and a lower refractor portion. This luminaire assembly provides downlight control and glare control properties for a concentrated, narrowly spaced downwardly dire... | 02/22/2000 |
| 5980063 | Illuminated elongated tubular body The present invention relates to a light stick comprising an electric light source and a light-refracting tubular body. The light-refracting tubular body has a longitudinal axis and is made of a translucent or transparent plastic material. The tubular bod... | 11/09/1999 |
| 5763872 | Motion actuated night light A night light device provides a low level illumination using electro-phosphorescent lighting which is automatically turned on when motion near the device is detected by the device and if the ambient lighting level is low. When the ambient light level is a... | 06/09/1998 |
| 5746502 | Receptacle structure for fluorescent lamp A receptacle structure for a fluorescent lamp, wherein a light refracting plate is arched upwardly and is provided beneath two wing plates of an elongated base of the receptacle structure, the inner bottom face of the refracting plate is in an undulated f... | 05/05/1998 |
| 5613769 | Tir lens apparatus having non-circular configuration about an optical axis Lens apparatus includes a TIR lens having multiple facets, the lens having a central axis about which the facets extend in non-circular relation. The lens may have a non-circular perimeter about that axis, and that perimeter may be rectangular or square.... | 03/25/1997 |
| 5434765 | Luminaire assembly A luminaire assembly which is adapted for easy cleanability. The luminaire assembly includes a housing portion having a substantially smooth outer surface and which is further adapted to receive and enclose a ballast assembly. An optical assembly is furth... | 07/18/1995 |
| 5095415 | Light fixture for externally illuminated sign A light fixture has a housing having an axis and a light source for detecting light into the housing along the housing axis. A first section of the housing occupies a first portion of the housing's perimeter and includes a light guide material. A second s... | 03/10/1992 |
| 5055976 | Strobe flashing device A strobe flashing device having a cylindrical strobe light emitting tube and a condenser lens for gathering light beams emitted from the strobe light emitting tube. The condenser lens is provided on one side face with a first cylindrical lens which gather... | 10/08/1991 |
| 4969074 | Tier light including deflecting and refracting prisms A tier light comprising a lamp, a substantially clear lamp housing having an upper end and a lower end, a plurality of baffles on the housing and spaced apart along the housing to prevent generally horizontal emissions of light through the housing, and a ... | 11/06/1990 |
| 4719548 | Prismatic globe for street luminaire A generally transparent globe capable of covering a light fixture and having an opening at one end for introduction of at least part of said light fixture, including a light bulb. The globe includes integral light refracting prisms extending over at least... | 01/12/1988 |
| 4703405 | Glare reducing lens A refractive lens member for use with a luminaire is constructed to minimize high angle glare. The grid comprises a plurality of lenses which are interconnected by a rib structure to form a pattern of lenses in a network grid, with the lenses all lying su... | 10/27/1987 |
| 4674011 | Alignment reference device An alignment reference device provides a collimated laser beam that minimizes angular deviations therein. A laser beam source outputs the beam into a single mode optical fiber. The output end of the optical fiber acts as a source of radiant energy and is ... | 06/16/1987 |
| 4538216 | Lighting apparatus An lighting apparatus including a housing having an opening, a light source received in the housing and a light transmitting-cover fixed at the opening of the housing and through which light rays are projected from the light source. The light transmitting... | 08/27/1985 |