|
In optics, chromatic aberration (CA, also called achromatism or chromatic distortion) is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point. It occurs because lenses have a different refractive index for different wavelengths of light (the dispersion of the lens). The refractive index decreases with increasing wavelength.
Chromatic aberration manifests itself as "fringes" of color along boundaries that separate dark and bright parts of the image, because each color in the optical spectrum cannot be focused at a single common point. Since the focal length f of a lens is dependent on the refractive index n, different wavelengths of light will be focused on different positions.
[Link to Source] Because O2view's Artemis Systems are Broadspectrum (400 - 1000 nm) and in this way combining Color and Fluorescent Images, the influence of the Chromatic Abberation in these systems would be unacceptable. Only "Super Achromatic Systems" can deliver a combined sharp Image for Medical Purposes. Pixel to pixel alignment of sensors means that every pixel of the sensor is looking at exactly the same place in the image. The maximum deviation we allow is a difference of 1/5 of the pixel size....meaning 1 micrometer. Currently we are the only company in the world manufacturing and delivering this level of accuracy (certified in qualification papers per camera). Because our positioning and gluing process does support this accuracy, your camera is for the lifetime suited to handle FIGS procedures as no other camera can.
|