标准摘要
[中文适用范围]： 本文件适用于设计用于医学实践的硬性内窥镜。 具有光纤或光电成像系统的内窥镜被排除在外。 它规定了测定内窥镜光学分辨率的测试方法。 本文件提供了一种用于表征硬性内窥镜光学分辨率三个方面的测量方法。 特性 A 用于提供内窥镜图像极限分辨率的简单测量。 特性 B 提供低空间频率分辨率的测量，并表征内窥镜图像的清晰度或对比度。 特性 C 提供内窥镜图像的空间频率响应的测量。 [外文原描述]： This document applies to rigid endoscopes designed for use in the practice of medicine. Endoscopes having a fibre-optic or opto-electronic imaging system are excluded. It specifies a test method for determining the optical resolution of endoscopes. This document provides a measurement method for characterizing three aspects of the optical resolution of a rigid endoscope. Characteristic A is used to provide a simple measurement of the limiting resolution of the endoscope image. Characteristic B provides a measurement of low spatial frequency resolution and characterizes the sharpness, or contrast, of the endoscope image. Characteristic C provides a measurement of the spatial frequency response of the endoscope image.
英文名称Optics and photonics — Medical endoscopes and endotherapy devices — Part 5: Determination of optical resolution of rigid endoscopes with optics