lens diaphragm信息详情
镜头光圈
diaphragm───n.隔膜；快门，[摄]光圈；横隔膜；隔板
lens───n.透镜，镜头；眼睛中的水晶体；晶状体；隐形眼镜；汽车的灯玻璃；vt.给……摄影
plicate diaphragm───皱襞隔膜
lens rental───镜头租赁
word lens───文字镜头
fresnel lens───[光]菲涅耳透镜
collimated lens───准直透镜
contact lens───n.接触镜; 隐形镜；隐形眼镜；接触镜片
lens formula───透镜公式
Diffraction: When light rays pass close to opaque surfaces, such as the blades of a lens diaphragm , they are scattered;───衍射：当光束靠近经过不透明表面，如镜头光圈的叶片时，它会散开。
of bellows in a process camera. It is the distance between the lens diaphragm and the image plane.───暗箱：制版照相机上可以伸缩的部份，它连接起镜头和影像平面。
is the distance between the lens diaphragm and the image plane.───是镜头光圈与影像平面之间的距离。
Camera extension The length of bellows in a process camera . It is the distance between the lens diaphragm and the image plane .───相机伸长度制版照相机的暗箱长度。即是镜头光圈与影像平面之间的距离。亦称像距。