Digital Endoscope Design

Digital Endoscope Design
Author(s):    Dennis Leiner
Published:   2015
DOI:             10.1117/3.2235283
eISBN: 9781510601604
Description:

Miniature optical systems required for digital endoscopes present unique challenges in lens design and manufacture. This Spotlight provides a tutorial on the key optical design considerations required for video endoscope systems. The text compares different types of endoscopes and discusses their advantages and disadvantages. Key areas of clinical importance to the medical industry are stressed. The book also presents endoscope specifications, international standards, and several design examples.

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Endoscopes have traditionally been considered either “rigid” or “flexible,” depending on the geometry required by the physician in accessing different areas of the body. Rigid endoscopes were the high-quality devices with stacks of lenses arranged to relay images from the tip of the scopes to eyepieces or large video cameras outside the body. These rigid endoscopes are surgical devices and are inserted through temporary access ports created by the physician. Flexible endoscopes were lower-quality devices, typically fiber-optic or with a miniature video camera at the tip directly coupled with an equally small camera lens.

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