Lamps and lanterns can be said to be one of the products closest to people's lives. Therefore, this assignment requires me to cut, decompose and rebuild a very simple circle to extract the two elements O and D that I want. The two change phases and then present them as a combined product. In the conception stage, I thought about adding elements of the moon, and then abandoned such schemes because of poor light adjustment, finally, the product concept and details are shown below. Lamps and lanterns can be said to be one of the products most close to people's lives. Therefore, in this assignment, I was asked to cut, decompose and reconstruct the simple circle, extract the two elements o and D that I wanted, and then present them as a combined product. in the conception stage, I thought about adding the element of the moon, and then abandoned this kind of scheme because the light was not easy to adjust, Finally, the product concept and details are as follows.