Jenoptik Optical Systems Gmbh

Jenoptik Aktiengesellschaft

Ullrich Krueger

Stefan Heinemann

Thomas Dressler

Helmut Seifert

Gero Schusser

Joerg Wunderlich

Martin Penzold

A scanning device includes a scan unit with a polygon mirror, pre-scan optics and post-scan optics. The pre-scan optics are arranged upstream of the polygon mirror in such a way that a beam bundle coming from the light source impinges on the polygon mirror at an angle of incidence (&#x3b1;) in a cross scan plane, and the optical axis of the post-scan optics is arranged in a reflection direction of the polygon mirror. Distortions, trapezoidal distortion and scan bow, occurring when imaging the light source on a scan line are minimized in that the cylindrical mirror of the post-scan optics is tilted at a first tilt angle (&#x3b2;) relative to the surface normals to the polygon mirror in the cross scan plane, and one of the two corrective lenses of the post-scan optics is tilted relative to the optical axis of the post-scan optics at a second tilt angle (&#x3b3;) and is arranged so as to be offset by a distance.

Scanning device

An achromatic scanner in which pre-scan optics and post-scan optics are designed and disposed with respect to one another in such a way that for a light beam imaged onto the target surface a first image plane of the pre-scan optics coincides with a first object plane of the post-scan optics for a first beam portion and a second image plane of the pre-scan optics coincides with a second object plane of the post-scan optics for a second beam portion, wherein an image plane of the post-scan optics which lies on the target surface is associated with the first object plane of the post-scan optics and the second object plane of the post-scan optics.

Achromatic scanner having a monochromatic f-theta objective

An F-theta objective which is color-corrected for a wavelength range of 1065-1075 nm and is suitable for high laser outputs of more than 1 kW, having sixth individual lenses L-L, wherein the lenses are formed of at least two different materials.

Color-corrected F-theta objective for laser material processing

Laser distance-measuring instrument for large measuring ranges having a transmitting channel and a receiving channel arranged parallel to one another, the receiving lens being a modified single lens comprising a primary lens region with a primary optical reception axis which is aligned parallel to the optical transmission axis, as well as a secondary lens region with a secondary optical reception axis which is inclined to the primary optical reception axis at an angle &agr;, with the result that a primary focal point and a secondary focal point are produced.

Growing community of inventors

Milda, Germany

Ullrich Krueger