... .01mm~±0.02mm5.Dimension according to the requirementOptical filter(ir cut off filter) : UV filter, skylight filter, red filter, yellow filter, ... filter, violet filter, infrared filter etc. Optical filter(ir cut off filter) is the kind of optical instrument which is used ... follows: 1. Colorful optical ir cut off filter. There are various kinds of colors for flat glass or bright film. The largest ...