![]() General – Differences between optical and mechanical drawings Material imperfections – Stress birefringence – 0/ Material imperfections – Bubbles and inclusions – 1/ Material imperfections – Inhomogeneity and striae – 2/ Surface form tolerances – 3/ Centring tolerances – 4/ (note British English spelling. For example ….ģ What do we do with this? This is a typical single element ISO compliant drawing We will be able to interpret this drawing at the end of the presentation. ![]() ISO is essential, and ISO compliant drawings will be encountered 99.99% of the time. ![]() Why do we care? GD&T alone will not help you interpret an optical element or system drawing. All of the major optical design packages output ISO compliant element drawings. Who uses it? Almost all of the optical design / manufacturing industry. ![]() ISO standard describing preparation of drawings for optical elements and systems Describes features unique to optical components – builds on GD&T standards (compatible with ASME Y14.5M) ISO version of ASME Y14.18M (which will likely be superseded by ISO or some equivalent). Introduction to Opto-Mechanical Engineering OPTI 521 University of Arizona, College of Optical Sciences Jason Lane 13 December 2009Ġ What is it? Who uses it? Why do we care?
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