Heidelberger Druckmaschinen Ag

Fisba Ag

Eckhard Langenbach

Martin Forrer

Bernard Beier

Bernd Vosseler

Lars Paulsen

Axel Gebhardt

Hansruedi Moser

Thomas Rupp

Hans-Joerg Heimbeck

Romedi Selm

An apparatus () for collimating a light ray field (), a diode laser, the use of a collimation lens system (), a collimation method and a method of producing a collimation apparatus. The apparatus () collimates a light ray field (L), which diverges more quickly in a first direction (F), perpendicular to the emission direction(s), than in a second direction (S), perpendicular to both the emission direction(s) and the first direction (F). The apparatus () comprises at least one first collimation lens system () for collimating the light ray field (L) in the first direction and at least one second collimation lens system () for collimating the light ray field in the second direction. The first collimation lens system () comprises a glass cylindrical lens () with an at least partly circular profile (). The first collimation lens system () comprises an aspherical plastic lens element ().

Apparatus for collimating a light ray field

A compact device for imaging () a printing form (), including a number of light sources () as well as imaging optics () for producing a number of image spots () of the light sources () on the printing form (), the imaging optics () including at least one macro-optical system () of refractive optical components (), the imaging device having the feature that the optical path () from the light sources () to the image spots () passes through the macro-optics () twice. The installation-space saving imaging device () can be used in a printing unit () of a printing press ().

Compact device for imaging a printing form

An image-recording device for a printing form ( ), including an array of light sources ( ) and a downstream microoptics ( ), which generates a virtual intermediate image ( ) of the light sources ( ), which is distinguished by the microoptics ( ) having a downstream optical system ( ) of a convex mirror ( ) and of a concave mirror ( ) having a common center of curvature, a combination of the Offner type, which produces a real image ( ) of the virtual intermediate images ( ). By employing a monolithic structure ( ) of the optical system ( ) of a convex mirror ( ) and of a concave mirror ( ), a more compact, space-saving design is able to achieved. The image-recording device according to the present invention may be utilized to special advantage for a printing form ( ) in a plate-exposure unit or in a print unit of a printing press.

Image-recording device for a printing form having macrooptics of the offner type

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Speicherschwendi, Switzerland

Eckhard Langenbach