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The Ealing range of Mounted Iris Diaphragms are lever operated and offer a continuous variable diameter aperture in a range of four sizes. Two versions are available, a standard and unmounted iris diaphragms which have a minimum closed aperture and a new zero aperture. The standard models are supplied in a black anodized aluminum ...
  • Aperture Shape: Circle
  • Material (body): Aluminum
  • Material (blades): Aluminum
  • Aperture Size: 25 - 0.8 mm
Data Sheet
Rectangular Apertures can be used to define the boundaries of an optical path or to mask out specific areas in an optical system, for example on a test target, monochromator, CCD or a detector. They are constructed from four independently-controlled brass knife edge jaws, that can be adjusted from fully closed to an area 12 mm square ...
  • Aperture Shape: Rectangle, Square
  • Material (body): Aluminum
  • Material (blades): Brass
  • Aperture Size: 0 - 12 mm
  • Independent Knife-edge Blades:
  • ...
Data Sheet

Did You know?

In optics, the word aperture describes a hole or opening through which light travels. Aperture is crucial in a number of optical instruments such as cameras and telescopes. Adjustable apertures, manual or automated, are typically used in applications where limiting or shaping incident light is required. For example, rectangular apertures can be used to define the boundaries of an optical path or to mask out specific areas in an optical system, like on a test target, monochromator, CCD or a detector.