German Test Slide - Grayfield Optical Inc - High Resolution Optical Microscopes

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German Test Slide


The following pictures show a German test chip made for the Physikalisch-Technische Bundesanstalt (PTB) (German Physical and Technical standardisation organisation).

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)

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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© 1976-2017: Grayfield Optical, Inc.
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