Grayfield Optical Inc - High Resolution Optical Microscopes

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German Test Slide (PTB)

Technology > Test Slides

The following pictures show a test chip made for the Physikalisch-Technische Bundesanstalt (PTB) ( German Physical and Technical standardisation organisation), Braunschweig which Kurt Olbrich was involved in the development of.
This slide is designed for reflected light only and we have found it to be of excellent quality for testing our microscopes down to 100nm.

On the micrometer scale, the distance measured is that between the first two lines (1 micrometer = 1000nm)

All Images were made with the Ergonom 500 microscope by Kurt Olbrich.

PTB Test Chip, General View
PTB Chip, Enlarged central Section
PTB Test Chip, µm Scale
PTB Test Chip, 300nm down to 100nm
PTB, 200nm and 100nm
PTB Test Chip, 100nm Resolution


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Copyright 1976-2007: Kurt Olbrich and Grayfield Optical Inc. - This site requires a screen size of at least 1024x768 and a broadband connection. Website last updated Apr 03 2008
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