Request InfoSwissOptic AGSwissOptic AG offers three neutral density filters that can be produced either as analog types with a continuous gradient, or digitally, with a discrete gradient. In linear gradient filters, the optical density shifts and is defined along an axis, so the density gradient can be defined in terms of linear or logarithmic functions or as a Gaussian profile. Because the optical density of the company's circular filters changes in a circular pattern as a function of angle, the density gradient can be defined by various mathematical functions. The optical gradient of its radial filters changes from...See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 10/24/2023Computer Generated HologramThe 9-inch computer-generated hologram (CGH) from Arizona Optical Metrology enables snapshot metrology of up to 7-inch diameter convex optics. 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