英语翻译
现在有个客户对H有兴趣,他想知道不同型号的H对应的光斑大小是否一样,不同的有效焦距对光的品质是否有影响,通常使用H时需要成组使用还是可以单独使用?
Now one of our customers has interest in Homogenizer,he want to know whether the different spec will happen the same size facula or not,for example,1900.047 and 1900.046,whether the effective focal length will be influential for beam quality,usually,do we need both homogenizers or single homogenizer when we use homogenizer?