Методика оценки наличия внутренних напряжений в полимерных заготовках и готовых ультрапрецизионных биоинженерных изделиях

Abstract

Residual stresses of different nature have a significant impact on the functional characteristics of the finished product. For bioengineering ultraprecision optics, for example, intraocular and contact lenses, to test the existence and nature of the internal stresses in the polymer workpiece to determine the optimal cutting block culling areas with excessive internal stresses, the choice of possible ways allowable stress relaxation after cutting and after roughing, and finishing processing blade, for the inspection and certification of finished optical products. The technique of polarization-optical scanning acting beams of white light that allows to determine the internal stresses existence, its nature and depth of penetration into the bulk polymer material.