像

aberration

像差

这就涉及到一个概念--像差(aberration),即屈光偏差的总称,包括球镜、柱镜等"低阶像差"以及球差、彗差等"高阶像差"(临床上的"不规则散光"),临床上像差通常特指"高阶像差".

chromatic aberration

色像差

光学基础知识:色像差(Chromatic aberration)与色散(Dispersion)轴向色像差涉及到成像的焦点距离,引起色彩产生松散或光斑(flare);而倍率色像差别则涉及到成像的大小,在画面周围引起色彩错开,形成扩散的彩色条纹,如镶边(fringing)现象.

spherical aberration

球像差

高斯的影像面也是测量像差大小的准据,因为,即使你使用单色光来照相,也会有像差产生,这种单色光像差依1856年塞德尔(Ladwig Seidel)的数学分析,主要区分为:球像差(spherical aberration),发状光(coma)、散光(astigmatism)、像面曲度(curvature

as changeful as a chameleon

(像变色龙一样多变 as bald as an eagle(像鹰一样秃顶)

as blind as a bat(像蝙蝠一样盲目) as busy as a bee(像蜜蜂... | as songful as a bird(像鸟一样动听) as angry as a bull(像公... | as changeful as a chameleon(像变色龙一样多变 as bald as an eagle(像鹰一样秃顶)

imaging

成像

光谱成像方法在成像方式上基本上可以分成两大类,即直接(平行)成像(imaging)方法和间接(串行)成像(mapping)方法. 直接成像是将整个样品的某一波长单色光直接产生完整的二维单色像,并顺序地改变光波长,则得到一系列单色像,

mirror image reversal

镜像反转,镜像反转

mirror image measurement 镜像测量,镜像测量 | mirror image reversal 镜像反转,镜像反转 | mirror image switch 镜像开关,镜像开关

picture element signal

像素信号,像元信号

picture element 图像元素,像点,像素 | picture element signal 像素信号,像元信号 | picture field 像面

virtual image

像

直接观察白纸,白纸上____(有/没有) 电池的像,平面镜所成的像是____(虚/实)像没有虚能被人看见,但不能 在屏幕上呈现的像 叫虚像(virtual image)观察平面镜中的像请同学们用平面镜观察自己的脸,思考下列问题: (1)像处在什么位置?

as songful as a bird

(像鸟一样动听) as angry as a bull(像公牛一样愤怒)

as blind as a bat(像蝙蝠一样盲目) as busy as a bee(像蜜蜂... | as songful as a bird(像鸟一样动听) as angry as a bull(像公牛一样愤怒) | as changeful as a chameleon(像变色龙一样多变 as bald as an eagle(像...

view finder selector switch

寻像器选择器开关; 寻像器选择器开关

view finder selector ==> 寻像器选择器,寻像器选择器 | view finder selector switch ==> 寻像器选择器开关,寻像器选择器开关 | view finder unit ==> 寻像器单元

NHL：abbr. non-hodgkin lymphoma; 淋巴瘤

complete ordered field：完备有序体

完全的空间n点形 complete n-point in space | 完备有序体 complete ordered field | 完全正(直)交系 complete orthogonal system