NLS-Glossary

is a solid-state laser employing a gemstone called alexandrite. is a solid-state laser employing a gemstone called alexandrite.  Its primary wavelength is 755 nm.                          

quotient of absorbed luminous flux and incident luminous flux, expressed by ${\alpha }_v=\frac{{\Phi }_{v,a}}{{\Phi }_{v,m}}$ where ${\Phi }_{v,a}$ is absorbed luminous flux and ${\Phi }_{v,m}$ is incident luminous flux

The Manufacturer Identification Number is a six digit number assigned to a manufacturer by the UCC (Uniform Code Council). This number is found on the left side of the U.P.C. number. The number is composed of a number system character and a five digit manufacturer’s code.

In some two-dimensional barcodes, an easier-to-read symbol that is overlaid on a harder-to-read symbol to reduce scanning errors. The data in the mask is mapped to the original data.

Two-dimensional barcodes like MaxiCode, Data Matrix or QR Code® encode information in two dimensions. Compared to stacked symbologies the information is not stored by using different bar (space) widths. Instead, the position of black (or white) dots is relevant.

A symbol which appears as a checker board; they are most likely square in shape, and contain some form of unique “finder pattern,” which distinguishes them from others and provides a decoding reference for scanners.