At Knight Optical quality control is of utmost importance and taken extremely seriously. We understand that if a drawing has a tolerance, surface specification and material type then the information is there for a reason. We'll always ensure that all aspects of your drawing and specification will be adhered to.
Our Quality Systems
Knight Optical have a strict quality system. Our management systems, standards and guidelines all comply to ISO9001 : 2000 standard ISO9001 Certificate click here
Surface Imperfections (Scratch-dig) explained Click here for PDF information
BS4301 - 1991 Preparation of drawings for optical elements and systems Click here for details
MIL-C-14806A Coating, reflection reducing for instrument cover glasses and lighting wedges Click here for details
MIL-G-174B Optical Glass Click here for details
Surface Quality
Our on-line stock optical components, and custom optical components made to your specification, are 100% visually inspected by our highly trained inspection staff. We have the equipment to work from simple 80-50 scratch dig standard up to high quality 10-5 standard Click here for details
Simple 60-40 scratch dig specification is inspected in the traditional way, using a clear 60W bulb onto a black background
High quality surface inspection, such as reticle and laser quality grade "10-5 scratch dig", is inspected with a 250W projector light and Zoom microscope, either in transmission or reflection
