Period Costs. Period costs are expenses that are easier to attribute to times and accounting periods than actual production processes or finished goods. Typically, managerial accountant want to classify expenses in categories that can improve operations. Manufactures tend to focus on functional classifications.
The amber color of these impact-resistant polycarbonate lenses block short-wavelength blue light and 100% of ultraviolet (UV) light, thus providing additional protection against cataract formation and the development of macular degeneration, while increasing contrast on both sunny and bright hazy days.
WHAT is APEX Lens? Apex lens is an Optical lens specially designed for RIMLESS glasses and SAFETY glasses. It is impact resistant and chemical resistant with higher vision clarity and thinness. It drillâs easily like Polycarbonate lenses and it surfaces as easily like regular High Index lenses.