公开(公告)号：US4975811A

公开(公告)日：1990-12-04

申请号：US412311

申请日：1989-09-26

申请人： Alistair B. Fraser ,  Ripley Golovin

发明人： Alistair B. Fraser ,  Ripley Golovin

IPC分类号： F21S8/00

CPC分类号： F21S8/00 ,  A63J5/02 ,  A63J5/025 ,  F21W2121/02 ,  Y10S362/806

摘要： A method and apparatus for producing primary rainbows and secondary rainbows in a curtain of liquid droplets in the air, whereby the rainbows are produced by refractive dispersion within the droplets themselves, and whereby the rainbows are visible from directly opposite sides of the curtain of droplets. The curtain of liquid droplets is produced by a water fountain. The device of the invention comprises a source of radially distributed light and a source of liquid droplets. The light source can be an array of lights configured so that the light rays appear to emanate from a common center. The light source may also be a collimated light source such as a searchlight which reflects light off a mirror-like conical surface or a combination of such sources. The light source may also be a single light source in a covered curved reflector.

摘要翻译： 一种用于在空气中的液滴帘幕中产生初级彩虹和次级彩虹的方法和装置，由此通过液滴本身内的折射分散产生彩虹，从而可以从液滴幕的相对侧看到彩虹。 液滴的窗帘由喷泉生产。 本发明的装置包括径向分布的光源和液滴源。 光源可以是配置为使得光线似乎从公共中心发出的灯的阵列。 光源还可以是诸如探照灯的准直光源，其将光从镜面状的锥形表面或这些源的组合反射出来。 光源也可以是覆盖的弯曲反射器中的单个光源。