Endoscopic imaging system employing diffractive optical elements

Surgery – Endoscope – Having imaging and illumination means

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600177, 600182, 359565, 359615, A61B 107, G02B 2744

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active

059804548

ABSTRACT:
An improved endoscope comprises an objective including a diffractive optical element juxtaposed to a solid-state imaging element at the distal tip of the endoscope. An inexpensive halogen lamp at the proximal end of the endoscope is employed as the illumination source. A fiber-optic bundle carries light to the distal tip of the endoscope, where diffractive optical elements are provided to disperse light, illuminating the field of view.

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