Whether a barcode can be scanned successfully using a mobile barcode scanner depends on the following factors: the physical properties (weight, shape) of the product, the attributes (size, type, contrast, reflection) of the barcode to be scan

Photonic crystals are attractive optical materials for controlling and manipulating the flow of light. One dimensional photonic crystals are already in widespread use in the form of thin-film optics with applications ranging from low and high reflect