Definition of dig

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Photonics Spectra BioPhotonics Vision Spectra Virtual Events & Summits Educational Institutions Add/Update Your Listing Exhibitor Listing Portal Become an Exhibitor Buyers' Guide Print Edition Marketplace Help

PFG Precision Optics - Precision Optics 12/24 LB

Photonics Dictionary

dig: A cosmetic defect on the surface of an optical element. A dig is nearly equal in terms of its length and width. The size is specified numerically by its average diameter in 1/100 of a millimeter; e.g., a # 80 dig has an average diameter of 0.80 mm.

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