What is the correct aperture size for my industry application and bar code symbology?
The aperture is essentially the eye of the optical system. When selecting a verification product, the aperture size should be 80% of the smallest element width (x-dimension). A good rule of thumb is to use the next smallest size as compared to the x-dimension of your bar code. Example: a 6 mil aperture size is proportionately correct for a quality printed 7.5 mil bar code.
