• Also available are concave substrates made to specified dimensions, shape, radius, curvature, or other custom parameter.
• These products are produced in an integrated Sigma Koki production line, from polishing of raw materials to thin film coating by deposition.

注意

• When no external tolerances are specified, Sigma Koki's standard tolerances apply.
• Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.