Mounting Rings protect optics from damage.
Cockrill, H.G., Co.
Holliston, MA 01746 2048
Jan 08, 2002 Optics Mounting Rings protect edges of lenses, filters, gratings, pellicles and mirrors. Machined from aluminum to ±0.05 mm and then black anodized to provide non-reflective surface, rings are available in sizes from 9 mm to 50 mm OD in 3 mm increments that range from 0.75 mm to 7 mm deep. Rings are available in single-, double-sided, and two-piece configurations that nest within each other. Internal recess holds optics.