激光束

Airy disk

爱里斑

研究表明, 当小孔直径等于爱里斑(Airy disk)的直径时, 探测效率可达85% 以上, 且满足共焦要求. 由于针孔直径等于爱里斑直径, 为微米量级, 如果激光束的会聚焦点与针孔位置存在偏差, 将会产生信号失真, 且容易引入轴外像差,

dinner plate

西餐用大盘

fanning beam (电磁)扇形激光束 | dinner plate 西餐用大盘 | phase separator 分相器

Donut

环形

假设一个激光管为环形 (donut) 模式,另一个为低功率的高斯模式. 两个激光管为正交极性,相结合则会产生稳定可控的激光束,具备有效的随机极性,类似高顶礼帽模式(见图 3).

fanning strip

扇形片

fanning beam 扇徵射束 | fanning strip 扇形片 | fantascope 扇形激光束

Fresnel

棱镜

细丝尺寸的波动影响到相关产品的质量.目前细丝尺寸的测量有光电能量法、激光束扫描法、激光衍射法、投影成像法等;对于线径0.1~1.0mm细丝线,我们采用半导体激光作单光源、菲涅尔双棱镜(Fresnel)产生双光源投影照射细丝线、CCD信号检测的方法,

master disc

原版盘

CD盘上的数据是用压模(stamper)冲压而成的,而压模是用原版盘(master disc)制成的. 在制作原版盘时,是用编码后的二进制数据去调制聚焦激光束,如果写入的数据为"0",就不让激光束通过,写入"1"时,就让激光束通过,或者相反.

slewed laser beam

旋转激光束

sleeves 套筒 | slewed laser beam 旋转激光束 | slide caliper 游标卡尺,滑动卡规

Your Pets can't resist chasing Zanies Laser Beam Mouse

您的宠物无法抗拒追逐zanies激光束的鼠标

Features: 特点... | Your Pets can't resist chasing Zanies Laser Beam Mouse您的宠物无法抗拒追逐zanies激光束的鼠标 | a powerful beam up to 160 feet for hours of playtime and pursuit一个强大的光束高达160英...

Your Pets can't resist chasing Zanies Laser Beam Mouse

您的宠物无法抗拒追逐zanies激光束的鼠标

Features: 特点... | Your Pets can't resist chasing Zanies Laser Beam Mouse您的宠物无法抗拒追逐zanies激光束的鼠标 | a powerful beam up to 160 feet for hours of playtime and pursuit一个强大的光束高达160英...

highly aberrated laser beam

高像差激光束

highligth flux 强光通量 | highly aberrated laser beam 高像差激光束 | highly collimatedf beam 高准直光束,高平行光束

The Shop Around the Corner：街角商店

上错天堂投错胎Heaven Can Wait (1943) | 街角商店The Shop Around the Corner (1940) | 妮诺奇嘉Ninotchka (1939)

neigher nor gate：既非又不闸

"邻区最佳控制","neighboring optimal control" | "既非又不闸","neigher nor gate" | "内利亚克编译程式","NELIAC; naval electronics laboratory international algebraic complier"