| 摘要 |
The present invention relates to a lens for an illuminating device, comprising two oppositely arranged sub-lenses, wherein the sub-lenses respectively have two surfaces facing away from each other, wherein at least one surface is configured as a wavy-like surface structure, and the two sub-lenses are capable of moving relatively between a first relative position and a second relative position, such that parallel beam from a light source of the illuminating device produce parallel beam at the first relative position after entering through one of sub-lens and exiting through the other sub-lens, while producing non-parallel beam at the second relative position after entering through one sub-lens and exiting through the other sub-lens.In addition, the present invention further relates to an illuminating device. |
