|6626555||Portable illumination device|
A portable illumination device for illuminating a target zone includes an outer frame having illumination means disposed at least partially therein, and attachment means for removably attaching the illumination device through desired objects, with the att...
|5790329||Color changing device for illumination purposes|
A color changing device provides a continuously variable light color by means of the introduction of dichroic color filters into the light path of an illumination device. In the subtractive color mixing method for mixing of colors in an illumination appar...