为了在有限口径下获得更大的观察范围，医用电子内窥镜广泛采用广角物镜，图象存在较为严重的畸变。
Due to the restriction of the coelom of human organs, wide angle lenses are widely used in the medical electronic endoscope whose images are distorted badly.
准确地测量含有广角耦合物镜的图像显示系统的几何畸变是实现图像显示系统几何畸变数字校正的前提和关键。
Accurate measurement of geometrical distortion of image display system with wide-angle objective lens is the precondition and key of digital distortion correction.
锗还用作合金组分、萤光灯的磷光粉和作照相机广角镜头和显微镜物镜等光学玻璃组分。
It is also used as a component of alloys, in phosphors for fluorescent lamps, and in the glasses of certain optical components, such as camera and microscope lenses.
锗还用作合金组分、萤光灯的磷光粉和作照相机广角镜头和显微镜物镜等光学玻璃组分。
It is also used as a component of alloys, in phosphors for fluorescent lamps, and in the glasses of certain optical components, such as camera and microscope lenses.
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