Patent attributes
A projection-based decorative lamp includes a decorative shell made of a translucent plastic material, and includes a projection assembly, the projection assembly being provided inside the decorative shell. A first projection chamber and a second projection chamber are provided within the projection assembly; the first projection chamber includes a first shape hole formed on a front wall and a first light source formed on a rear wall, and the second projection chamber includes a second shape hole formed on a front wall and a second light source formed on a rear wall; the first light source illuminates the first shape hole to project a first shape onto the decorative shell, and the second light source illuminates the second shape hole to project a second shape onto the decorative shell; a center point of the first shape is the same as a center point of the second shape.