US 12,085,269 B1
Projection-based decorative lamp
Keyong Song, Taizhou (CN)
Filed by Keyong Song, Taizhou (CN)
Filed on Jul. 20, 2023, as Appl. No. 18/355,582.
Claims priority of application No. 202321289534.1 (CN), filed on May 23, 2023.
Int. Cl. F21V 3/02 (2006.01); G03B 21/20 (2006.01); F21W 121/00 (2006.01)
CPC F21V 3/02 (2013.01) [G03B 21/2013 (2013.01); F21W 2121/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A projection-based decorative lamp, comprising a decorative shell, the decorative shell being made of a translucent plastic material, and further comprising a projection assembly, the projection assembly being provided inside the decorative shell, wherein a first projection chamber and a second projection chamber are provided within the projection assembly; the first projection chamber comprises a first shape hole formed on a front wall and a first light source formed on a rear wall, and the second projection chamber comprises 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; an alternating switch of the first light source and/or the second light source enables the interaction and variation between the first shape and the second shape;
wherein the decorative shell is in a shape of a pumpkin, the first shape hole represents an open-mouth shape, and the second shape hole represents a closed-mouth shape; the first shape and the second shape flash alternately to achieve a projection effect of opening and closing the mouth;
wherein the projection-based decorative lamp further comprises a third projection chamber, wherein the third projection chamber is provided adjacently above the second projection chamber; third shape holes and a third light source are formed respectively on a front wall and a rear wall of the third projection chamber on a same horizontal line; the third light source illuminates the third shape holes to forwardly project a third shape onto the decorative shell.