Test targets with highest resolution and excellent dimensional accuracy
Resolution Charts, Siemens Stars, Pinholes and Checkerboards
The test structures are produced by ablation of the chromium layer, whereby structural sizes down to 100 nm are possible. At the same time, excellent dimensional tolerances and straightness of the structural edges are ensured. The test targets are embedded in a support of the standard size 75×25 mm² for microscope slides.
The structures are implemented as negative, i.e. the structures on the test are transparent, the background is blocked by a chrome layer.
For use with a microscope objective lens there is a version with a 0.17 mm cover glass available.
Resolution Target TC-RT01
With this resolution test target, the resolution limit of an objective can be determined very easily and quickly in transmitted light. There are 59 line patterns with 7.5 to 3300 line pairs per mm in horizontal and vertical alignment.
The simple arrangement of the structures and direct reading of the structure size on the test ensures intuitive handling.
In addition, there are 5 pinholes with diameters between 4.0 μm and 0.25 μm to allow a more detailed characterization of micro-imaging optics.
Price: 1050 Euro excl. VAT
Siemens Star Target TC-RT02
This resolution test consists of 5 Siemens stars and shows the peculiarity that the tapered segments in the center of the stars are precisely manufactured to a minimum width of 150 nm.
Thus, this test chart is also suitable for the determination of the resolution of microscope objectives of very high numerical aperture.
Additional measuring and positioning marks facilitate the adjustment. The pattern is “negative”, i.e. the Siemens stars are transparent.
Price: 1050 Euro excl. VAT
Checkerboard Target TC-CB50
A checkerboard with a total size of 9.0 x 9.0 mm² out of 50 x 50 µm² squares. It is particularly suitable for testing of image skew and curvature.
The edges are extremely straight and sharp and therefore allow determination of local image quality as well.
Price: 950 Euro excl. VAT
