Product Announcement from Andover Corporation
Andover stocks a wide variety of colored filter glass, in both polished and unpolished forms. Standard parts are available off the shelf, and custom sizes and shapes can be fabricated with quick turnaround times. Both surfaces are optically polished to1/4 wave per inch, and parallel to 30 arc seconds or better. Please refer to the general specifications listed on our website for more information.
Standard sizes include 25mm dia,. 50mm dia., 50mm sq., and 165mm sq. Glass types include bandpass, long pass, heat absorbing and neutral density. Parts can be A/R coated on request.