回复：兄弟- 这个是你自己凭空想像的-- Maybe.

If only you can find a perfect round water drop in nature, you will see different type of rainbow.


Sounds like you have googled a lot. Please attach a few links for us to see.

圆形水珠一样是产生完美彩虹码, 或是平的 No. please reviwe the principle of refraction.