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Eichelberger, MI

Chirstopher L. Eichelberger, Livonia, MI US

Patent application numberDescriptionPublished
20080304277INCREASED EFFICIENCY LED PROJECTOR OPTIC ASSEMBLY - A projector optic assembly for generating and projecting a high gradient beam. The assembly includes a light pipe defining an optical axis and having a collection unit, a funneling unit, and an emitting surface. The collection unit extends from a first end to a transition plane defining the transition from the collection unit to the funneling unit. The collection unit is configured to collect light from a source and direct it through the transition plane, whereafter the funneling unit extends from the transition plane to the emitting surface. The emitting surface has an area smaller than an area of the transition plane selected to increase the efficiency of the funneling unit. Spaced apart from and generally opposite of the emitting surface is a condenser lens12-11-2008

Chris L. Eichelberger, Livonia, MI US

Patent application numberDescriptionPublished
20090201693SPLIT TROUGH REFLECTOR - A trough reflector for a lighting system is disclosed, wherein the trough reflector produces a lighting pattern having a stepped horizontal cut-off, maximizes collection efficiency, and minimizes undesirable beam patterns. The trough reflector includes a reflective surface having a substantially parabolic curvature for directing light, wherein the reflective surface is split into a first portion and a second portion. The second portion offset relative to the first portion of the trough reflector. The trough reflector further includes a plurality of reflective side walls disposed adjacent the reflective surface, wherein the reflective side walls cooperate with the reflective surface to direct light rays to form a desired lighting pattern.08-13-2009
20090207610COMBINATION REAR LIGHTING SYSTEM - A lighting system that includes a common optical system to achieve both rear fog and rear position or tail functions is disclosed, the lighting system including a light guide having a first side and a second side, the first side of the light guide having a plurality of optical devices formed therein; a first light source disposed adjacent one of the optical devices, wherein the optical device reflects and substantially collimates light rays emitted from the first light source through the light guide and into a first desired lighting pattern; and a second light source disposed adjacent one of the optical devices, wherein the optical device reflects and substantially collimates light rays emitted from the second light source through the light guide and into a second desired lighting pattern.08-20-2009

Patent applications by Chris L. Eichelberger, Livonia, MI US

Christopher Eichelberger, Livonia, MI US

Patent application numberDescriptionPublished
20110292660Light Guide and Semiconductor Luminaire - In at least one embodiment, the light guide (12-01-2011

Christopher L. Eichelberger, Livonia, MI US

Patent application numberDescriptionPublished
20080225548ILLUMINATING DEVICE - An illuminating device has a light pipe that is elongate in shape and has a light-emitting face running in the direction of a longitudinal axis. A light-reflecting face is disposed opposite the light-emitting face, and the light-reflecting face has a plurality of prismatic cuts. Each prismatic cut includes a front face oriented at an angle B from a normal axis, the normal axis being 90 degrees from the longitudinal axis of the light pipe. The angle B is in the range of about 5 degrees to about 45 degrees and is such that it allows light to refract through at least one prismatic cut and then be internally reflected.09-18-2008
20080291683Near Field Lens - A lens for use with a light emitting source is provided. The lens has a main body with a light-collecting face and a light-emitting face and which defines an optical axis extending through the centers of these two faces. A pocket for receiving light from the light source is defined in the light-collecting face by an inner axially-facing surface surrounded by an inner radially-facing surface. The inner axially-facing surface is concave and has a spherical shape. The inner radially-facing surface has a non-spherical, tapered shape and extends between the axially-facing surface and an open end of the pocket. A light assembly incorporating the lens includes a light-emitting diode.11-27-2008
20080310028NEAR FIELD LENS FOR A LIGHT ASSEMBLY - The present invention provides a near field lens for an automotive light assembly. The lens comprises a main body having a radial collimating portion formed as a rotation about a central axis. A light-collecting faces defines pocket in the main body and receives light from the light source. The radial collimating portion is structured to radially direct light in planes normal to the central axis and to collimate light in radial planes through the central axis. By extending the main body, a thin plate near field lens is provided.12-18-2008
20080310159NEAR FIELD LENS - A lens has a main body for use with at least one light source. The main body has a light-emitting face, a light-collecting face disposed opposite the light-emitting face, and a plurality of focal points, the latter of which form a focal ring. A central axis extends through the light-collecting face and the light-emitting face. The main body is substantially radially symmetrical about the central axis and the focal ring extends around the central axis of the main body of the lens.12-18-2008
20080310166Toroidal Lens - A lens, suitable for automotive applications, for use with a light source is provided. The lens has a main body defining a cross sectional shape with a curved side and a straight side. The main body is formed by rotating the cross sectional shape about an axis of revolution located outside the main body. The axis of revolution is parallel to the straight side of the cross section and passes through a focal point defined by the curved side.12-18-2008
20090274419MANIFOLD-TYPE LIGHTGUIDE WITH REDUCED THICKNESS - A light guide includes a body having an elongate shape and a plurality of light-reflecting faces and light-emitting faces extending along the body. The light-reflecting faces extend in a stepped fashion along the body in the direction of a longitudinal axis of the light guide and are configured to reflect light rays by the principle of total internal reflection. Each light-emitting face is disposed along the body opposite a corresponding light-reflecting face. Each light-emitting face is configured to emit light reflected by the corresponding light-reflecting face. The light-emitting faces are also disposed on the body in a stepped fashion. Steps of the light-emitting faces correspond to steps of the light-reflecting faces. In another aspect, the light-reflecting faces are separated by stepped-down faces. The stepped-down faces are oriented at a stepped-down angle in the range of about 1 and 10 degrees with respect to the longitudinal axis of the light guide.11-05-2009

Patent applications by Christopher L. Eichelberger, Livonia, MI US