Minimum external transmittance at 185 nanometers is 80% for UV grades (1100 and 1000) when measured through a 0.394" (10mm) polished, uncoated sample.
Specifications for larger blanks will be provided upon request. Centerless grinding to finished diameters and I.D. slicing to close tolerances are available in serveral sizes.
Index Homogeneity:
Inclusions, bubbles, and seeds smaller than 0.004" (0.10mm) in diameter are disregarded in this specification. Multiply average or maximum number of inclusions per cubic inch by 6.102 to obtain amount per 100cc of glass.
One direction only (through major face or thickness) per MIL-G-174A, Amendment2 25 June 1974.
Optical Retardation (birefringence) resulting from residual stress, as measured photoelastically, expressed in nanometers per centimeter.
Copyright © MM
Dynasil Corporation