Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Osram Opto Semiconductors Gmbh

Sennheiser Electronic Gmbh & Co Kg

Bodenseewerk Geratetechnik Gmbh

Coelux S.r.l.

Jenoptik Aktiengesellschaft

Sypro Optics Gmbh

Unique-m.o.d.e. Ag

Fresnel Optics Gmbh

Sick Ag

Jenoptik Polymer Systems Gmbh

Peter Schreiber

Jacques Duparre

Marcel Sieler

Dirk Michaelis

Christoph Wächter

Chen Li

Stephanie Fischer

Andreas Bräuer

Torsten Possner

Sergey Kudaev

Bernd Höfer

Frank Wippermann

Stefan Grötsch

Jacques Duparré

Markus Hammes

Hans Dieter Tholl

Peter Dannberg

Bryce Anton Moffat

Arnold Gillner

Erik Foerster

Rolf Goering

Michael Gross

Uwe Zeitner

Antonio Lotti

André Michaelis

Stefan Heinemann

Christoph Hofmann

Manfred Hibbing

Vladimir Gorelik

Wolfgang Niehoff

Thilo Von Freyhold

Armin Leitel

Ulrich Roellig

Jens Göhring

Christoph Waechter

Juergen Ihlemann

Alf Riedel

Ralf Waldhäusl

Michael Nickel

Ludwig Pongratz

Thomas Preussner

Steffen Glockner

Rolf Goring

Rolf G&ouml;ring

Ruth Weichenhain-Schriever

Axel Bodemann

Tim Freialdenhoven

Martin Bitzer

Matthias Kraus

Maik Schwede

Andreas Brenner

Thomas Dallmann

Sara Grollius

Jennifer Ruskowski

Kerstin Täschner

Dmitrii Stefanidi

Andreas Walkling

Christoph Schierz

Erik FÖRSTER

An optical device for imaging a first, object-side set of mutually parallel bundles of beams onto an image surface, includes

Multichannel optomechanical addressing unit

The present disclosure is directed to a direct-light generator for sun-sky-imitating illumination devices configured for generating natural light similar to that from the sun and the sky The generator includes a first emitting surface and an array of light-emitting devices configured to generate from a primary light a direct light which exits the first emitting surface along a direct-light direction. The direct light exiting the first emitting surface has a luminance profile which has a narrow peak in the angular distribution around the direct-light direction and is uniform across the first emitting surface. Each light-emitting device includes a light emitter having an emitting surface and at least a pair of collimation lenses illuminated by the light emitter.

Direct-light generator for sun-sky-imitating illumination devices

Low beam headlight that can be obtained with small installation length and high light/energy output are described. A light source arrangement is provided, which generates a light cone of light that is less divergent in a first transverse direction than in a second transverse direction perpendicular to the first transverse direction, and this light source arrangement is used to illuminate three lens arrays arranged next to one another along the second transverse direction, which are thus each irradiated on the input side by an associated one among segments of the light cone arranged next to one another in the second transverse direction and output low beam on the output side with a luminous intensity angle distribution modified with respect to the light cone.

Low beam headlight

High beam headlight that can be produced with a small installation length with high efficiency and also provide effective low-cost manufacturability are described. For this purpose, a light source array having a plurality of light sources is combined with a honeycomb condenser. A collimator connected between the honeycomb condenser and the light source array illuminates the honeycomb condenser with collimated light of the plurality of light sources of the light source array. The arrangement of the components is such that the collimated light from a first light source leads to crosstalk-free irradiation of the honeycomb condenser and illumination of a first far-field segment. For each of the at least one second light source of the light source array, the collimated light of the respective second light source leads to irradiation of the honeycomb condenser with channel crosstalk and an illumination of a second far-field segment oriented obliquely with the first far-field segment.

High beam headlight

Optical beam former for generating an emerging light beam from an incident light beam, the optical beam former including: a condenser lens array including several condenser lenses; and a projection lens array arranged in parallel to the condenser lens array and including several projection lenses; wherein exactly one of the projection lenses is assigned to each of the condenser lenses so that several optical channels are formed and so that each of the several optical channels generates a partial light beam of the emerging light beam, said partial light beam emerging in an angle-of-emergence range with a partial intensity distribution that is homogenous with respect to an angle of emergence, from an incident partial light beam, wherein the admissible angle-of-incidence ranges of the optical channels have the same size as to the magnitude in a plane extending in parallel to the optical axes of the condenser lenses; and wherein the angle-of-emergence ranges of at least two of the optical channels are different so that an intensity distribution with respect to the angle of emergence includes several regions having a homogenous intensity in a far field of the emerging light beam.

Optical beam former

What is shown is a projection device having at least one light source and an array of optical channels. Each channel includes a first refractive optical free-form surface and a second refractive optical free-form surface and projection optics. The first and second refractive optical free-form surfaces are arranged between the light source and the projection optics and cause K&#xf6;hler illumination of the projection optics by an object light pattern, resulting in the image to be projected on an image surface of the projection optics, wherein images of the array of optical channels superimpose one another.

Projection device and method for projection comprising optical free-form surfaces

Generating images to be projected at different projection distances with a multi-aperture projection display, statically or without any conversion, neither mechanically nor at the imager, is enabled by designing the single images of the multi-aperture projection display in a suitable manner, namely by combining provisional single images for the projection channels of the multi-aperture projection display, which are intended for each of the at least two images to be projected, projection channel by projection channel, to the actual or final single images.

Multi-aperture projection display and single image generator for the same

A projection display is provided with an imager that is implemented to generate individual images in a distribution of sub-areas of an imaging plane of the imager. The projection display also includes a multi-channel optics, which is configured to map one allocated sub-area of the imager each per channel, such that the mappings of the individual images are combined to an overall image in a projection area. At least some channels of the multi-channel optics are arranged along at least one curve which is similar to at least one elongated image feature of the overall image, so that a two-dimension anisotropic out-of-focus behavior of each projected image point is obtained. In this way, a large depth of focus range can be combined with relatively high projection brightness without having to accept losses with respect to the focused illustration of image features that are to be projected with sufficient focus.

Projection display with multi-channel optics with non-circular overall aperture

A projection display includes an imager for displaying sub-images in a two-dimensional distribution of sub-areas of the imager and a projection optics array with a two-dimensional distribution of projection optics. The projection optics array is configured to superimpose projections of the sub-images to an overall image in an image plane such that a mutual area overlap of the projections of the sub-images in the image plane in pairs results, which is between 0.1 and 0.8 for all pairs. Here, the projection display is implemented such that the overall image is a virtual overall image.

Projection display and method for projecting an overall image

A projection display with an imaging system is described, which is implemented to generate individual images in a distribution, such as a two-dimensional distribution, of sub-areas of an imaging plane of the imaging system, and a multi-channel optics that is configured to map one allocated individual image or one allocated sub-area of the imaging system each per channel, such that the mapping of the individual images is at least partly superimposed to an overall image in a projection surface, wherein the projection surface is a non-planar free-form surface, such as a curved surface, and/or tilted with respect to the imaging plane, and the imaging system is implemented such that constellations of points in the sub-images, each superimposed in a respective common point in the overall image by the multi-channel optics, differ depending on what distance the respective common point in the overall image has to the multi-channel optics.

Projection display and method for displaying an overall image for projection free-form surfaces or tilted projection surfaces

A projection display includes at least one light source, at least one reflective image generator configured to represent frames in a two-dimensional distribution of subareas of same, a projection optics arrangement having a two-dimensional arrangement of optical projection elements and being configured to image an associated subarea of the at least one image generator onto an image plane in each case, so that images of the frames superimpose within the image plane to form an overall picture, and at least one beam splitter arranged within an optical path between the at least one reflective image generator and the two-dimensional arrangement of optical projection elements, on the one hand, and the optical path between the at least one light source and the at least one reflective image generator, on the other hand.

Projection display and method of displaying an overall picture

A projection display having at least one light source and also regularly-disposed optical channels. The optical channels comprise at least one field lens, to which respectively one object structure to be imaged and also at least one projection lens are assigned. The distance of the projection lenses from the assigned object structures corresponds to the focal distance of the projection lenses while the distance of the object structures to be imaged from the assigned field lens is chosen such that a K&#xf6;hler illumination of the assigned projection lens is made possible. Then the individual projections are superimposed to form the total image.

Projection display having kohler illumination of projection lenses

The invention relates to the development of economical camera modules having objectives contained therein with a minimal constructional length and excellent optical properties. It is made possible as a result that camera modules of this type can be used in mobile telephones or minicomputers, such as PDAs (personal digital assistant).

Camera module and array based thereon

A light-emitting module is specified, comprising at least two light sources disposed on a common carrier. At least one of said light sources includes at least two LED chips. Each light source of the module is followed downstream by an optic body of an optical element, and the optic bodies are suitable for guiding electromagnetic radiation to a light exit surface of the optical element. An optical projection apparatus comprising such a light-emitting module is also specified.

Light-emitting module, particularly for use in an optical projection apparatus

A device for the homogenization of radiation, preferably light, using chirped microlens arrays (cMLA) from the established regular microlens arrays (rMLA), chirped microlens arrays are an arrangement of non-identical lenses in one array. Non-identical means that the lens parameters of the lenses of the array, such as e.g. the radius of curvature, the free diameter, vertex position, and others, can vary from lens to lens or cell to cell. The parameters of each lens or cell can be determined by functions (analytically, numerically), the functions preferably being dependent upon the position of the cell or the lens in the array.

Device for homogenizing radiation by means of irregular microlens arrays

Growing community of inventors

Jena, Germany

Peter Schreiber