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SPIE Photonics West
30-January - 01-February 2018
San Francisco, CA, United States

Sill Optics GmbH & Co. KG

Sill Optics GmbH & Co. KG
Johann-Höllfritsch-Str 13
Company Description
Featured Product: Scan lenses, aspheres, fixed & zoom beam expanders, telecentric imaging lens, single lenses

Sill Optics develops and manufactures a wide range of telecentric lenses, illumination systems, CCD-lenses with c-mounts, either of the shelf or customized manufactured. Scan lenses for printing, beam expanders, yag focusing optics and profile projector lenses are in the program including. Custom made optical systems and components for prototypes and series.
Press Releases
02 January 2018
Stainless steel beam expanders for UV applications
UV laser light brings many advantages to laser applications via its short wavelength, but this high photon energy does also lead to bleaching of anodized aluminum resulting in lens damage via the residues. Sill Optics is therefore presenting stainless steel versions of their commonly available beam expanders.
27 November 2017
Large diameter aspheres for fiber collimation
Aspheres offer the great advantage to accomplish monochromatic imaging tasks with one optical element where multiple lens elements would otherwise be needed.
Main advantages of aspheres are:
- less spherical aberrations
- larger aperture
- less weight
- less transmission loss
- no internal ghosts
The combination of high purity fused silica and low absorption coatings decreases thermal shift. The capability of Sill Optics MRF machines allows production of aspheres up to diameter 180 mm, sometimes restricted by curvature. Measurement setup (interferometric wavefront test, tactile and optical 3D profilometry) enables us to ensure a surface quality of 0.2 µm PV and 0.05 µm RMSi depending on material and geometry. Even sagittal heights up to 21 mm are measurable enabling the production and test of very steep radii at certain diameters.
This adds up to a perfect option for a fiber collimation system. For example a collimator for 1550 nm with a focal length of f = 275 mm and a clear aperture of 120 mm in diameter can be created just with one aspheric lens element and still be nearly diffraction limited. The mechanical housing includes a practical solution for the fiber mounting with possible precision adjustment in X, Y and Z direction. Custom design to your requirements in NA, focal length, size and other parameters is always an option. Please feel free to contact us.
27 November 2017
Telecentric F-Theta lenses with large scan area at f = 125 mm
F-Theta lenses are important in material processing applications like cutting, welding, ablation and many more. They are designed to focus laser beams down on a plane scan area with a consistent spot size. Additionally they are available at various focal lengths from UV to IR and some even with telecentricity.
Sill Optics presents the S4LFT4125/075 as an advancement for lasers with ultraviolet. The scan area has been improved from 35.0 mm x 35.0 mm up to 50.5 mm x 50.5 mm compared to the previous model. Despite the higher focal length a focal diameter of 8 µm (1/e²) can be reached inside the whole scan area with a 10 mm input beam diameter. According our high quality and performance, this lens is made of fused silica, is without internal or external back reflection focus points and furthermore diffraction limited.