Scratch and digpaddle

80 50 scratch-dig

- The options listed are those intended for use when inspecting to the following standards: MIL-PRF-13830B, MIL-C-675C, ANSI/OEOSC OP1.002:2009 (Visibility), or ISO 10110-7 / ISO 14997 (Visibility).

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Scratch-dig specifications

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Scratch and digapp

Whether you’re looking to find a better solution, or simply seeking to replace a worn, damaged or lost set, this article has been written to help.

If you are inspecting scratches and digs in accordance with MIL-PRF-13830B, MIL-C-675C, ANSI/OEOSC OP1.002:2009 (Visibility), or ISO 10110-7 / ISO 14997 (Visibility), then there is only one set currently available for consideration; the plastic moulded Optic Surface Imperfection Scratch-Dig Paddle sold by ThorLabs.

Having found this article, I will assume that you've been on a quest to source scratch-dig comparison sets or paddles, only to discover that the options available are limited at best.

scratch-dig chart

Availability is limited, so buy before these products disappear. Sorry, we cannot accept returns. Receive up to 80% off select products.

In the next section we summarise all of the available (and discontinued) scratch-dig comparison products that are suitable for supporting visibility based optical surface quality assessment; providing you with key information on the options and where you can procure them.

mil-prf-13830bscratch and dig

Recognising the importance of having a consistent and reliable source for scratch and dig visual comparison targets, RedLux is working on new set of Scratch-Dig Comparison References based on drawing C7641866. These targets will feature controlled scratches and digs on a glass substrate, making them suitable for both visual inspection and machine vision calibration. They will meet the standards outlined in MIL-PRF-13830B, MIL-C-675C, ANSI/OEOSC OP1.002:2009 (Visibility), and ISO 10110-7 / ISO 14997 (Visibility).