Schott Ag

Schott Glas

Matthias Brinkmann

Edgar Pawlowski

Wolfram Beier

Bernd Hoppe

Hauke Esemann

Ulrich Fotheringham

Bernd Wölfing

Norbert Greulich-Hickmann

Polina Ebeling

Markus Garsche-Andres

Jörg Luttmer

Bianca Schreder

Michael Kluge

Manfred Lohmeyer

Steffen Reichel

Andrea Anton

Gerhard Hahn

Klaus Gerstner

Detlef Wolff

Josè Zimmer

Noboru Kobayashi

Rolf Harmgardt

Tobias Kälber

Hubertus Bader

A cylindrical lens having a refractive optical element and a diffractive optical element is used in order to provide a cylindrical lens that can preferably be fabricated cost effectively and precisely, and in the case of which optical aberrations and defects in semiconductor diode laser arrangements can be corrected. The diffractive optical element can include various segments.

Cylindrical lens with refractive optical element and diffractive optical element

In order to meet the legal requirements regarding color of light from a headlight, especially at the light-dark boundary and how much scattered light can occur in the dark region, a lens () is provided, which has a diffractive structure on at least one of its surfaces (). This lens () is built into a headlight with a diaphragm () arranged between the lens () and a light source () so that the diffractive structure is arranged substantially only in a region of the lens surface that is not masked by the diaphragm. In various embodiments a computer-generated hologram (-) can be arranged in the other region of the lens surface that is masked by the diaphragm, so that the lighting apparatus can perform other functions, such as improving driver visibility, displaying an image, measuring the distance to an object or detecting rain or snow.

Lighting apparatus, lens and method of making the lens

A cylindrical lens having a refractive optical element and a diffractive optical element is provided. The cylindrical lens can be fabricated cost effectively and precisely, and optical aberrations and defects in semiconductor diode laser arrangements can be corrected. The diffractive optical element can include various segments.

Refractive-diffractive hybrid lens, in particular for beam shaping of high power diode lasers

The invention relates to a photostructurable body, in particular glass or glass-ceramic, in which the glass is a multicomponent glass and/or the glass-ceramic is a multicomponent glass-ceramic, in each case having a positive change in refractive index &#x394;n as a result of the action of light.

Photostructurable body and process for treating a glass and/or a glass-ceramic

A single free-beam region for coupling electromagnetic radiation in and out is provided in order in the case of an AWG coupler for spectrally separating electromagnetic radiation to achieve a more stable thermal characteristic and a space-saving layout.

Awg coupler for separating electromagnetic radiation of various wavelength regions, and a telecommunications system

A method for the homogeneous heating of semitransparent and/or transparent glass and/or glass-ceramic articles using infrared radiation so that the glass and/or glass-ceramic articles undergo heat treatment at between 20 and 3000&#xb0; C., notably at between 20 and 1705&#xb0; C. Heating is achieved by a component of infrared radiation which acts directly on the glass and/or glass-ceramic articles and by a component of infrared radiation which acts indirectly on said glass and/or glass-ceramic articles. The radiation component indirectly acting on the glass and/or glass-ceramic articles accounts for more than 50% of total radiation output.

Method and device for the homogenous heating of glass and/or glass-ceramic articles using infrared radiation

The invention relates to a method of producing glass-ceramic parts and/or glass parts by deformation of a glass-ceramic blank and/or glass blank. The invention is characterized in that forming is carried out using infrared radiation.

Method of forming glass-ceramic parts and/or glass parts

In order to produce an improved coupling between waveguides of different refractive indexes, provision is made of a connecting device for connecting at least two optical waveguides ( ), in the case of which a first optical waveguide ( ) is held relative to a second optical waveguide ( ), an end face ( ) of the first waveguide ( ) running obliquely to the optical axis ( ) of the first waveguide ( ), and an end face ( ) of the second waveguide ( ) running obliquely to the optical axis of the second waveguide ( ). In this case, the refractive index of at least one light-guiding region of the first optical waveguide ( ) differs from the refractive index of a light-guiding region of the second optical waveguide ( ), and the optical axes of the first and the second optical waveguides ( ) are arranged substantially parallel to one another.

Connecting device for connecting at least two optical waveguides, in particular optical waveguides of different refractive index

Growing community of inventors

Mainz-Kastel, Germany

Matthias Brinkmann