TO ORDER : Specify part number as follows: Substrate Code + Coating Code 

Example: 12.7mm diameter; 2 arc sec; 532 nm; Narrowband AR on entrance / exit 

surface; Protected Aluminum on reflecting surface: CT 1302 K 053 NA 2 PA 

Other substrate materials, specification, coatings and wavelengths can be provided upon request. 

Please contact our sales department for assistance.