Illuminated pattern device
An illuminated pattern device includes a pattern body ( 32 ) having a pattern ( 321 ), a bottom board ( 39 ) having a reflective surface, a plurality of dot light sources arranged on the bottom board, and a frame ( 36 ) sandwiched between the pattern body and the bottom board. The pattern defines a projection surface on the bottom board. The dot light sources are evenly arranged on the bottom board such that they provide relatively uniform brightness for the pattern body.
1. An illuminated pattern device, comprising:
a pattern body having a pattern;
a bottom board disposed opposite to the pattern body, defining a space therebetween; and
a plurality of dot light sources arranged on the bottom board and distributed on a designated circular trail,
wherein the pattern body defines a projection surface on the bottom board, the dot light sources share a same imaginary circular trace whose center is the same as a center of the projection surface, and a radius of the circular trace is approximately half of a radius of the projection surface.
2. The illuminated pattern device of claim 1 , further comprising a light guide plate arranged between the pattern body and the dot light sources.
3. The illuminated pattern device of claim 1 , wherein the dot light sources are light-emitting diodes.
4. The illuminated pattern device of claim 1 , wherein an unpatterned portion of the pattern body is opaque.
5. The illuminated pattern device of claim 1 , wherein an unpatterned portion of the pattern body is translucent.
6. The illuminated pattern device of claim 1 , wherein transparent material is filled between the pattern body and the light sources.
7. The illuminated pattern device of claim 1 , wherein the pattern body is circular.
8. The illuminated pattern device of claim 7 , wherein the illuminated pattern device comprises three dot light sources arranged on the bottom board.
9. The illuminated pattern device of claim 1 , wherein the pattern body is hexagonal.
10. The illuminated pattern device of claim 9 , wherein the illuminated pattern device comprises three dot light sources arranged on the bottom board.
11. The illuminated pattern device of claim 1 further comprising a frame connecting and sealing the pattern body and the bottom board thereby.
12. The illuminated pattern device of claim 11 , wherein the frame has a reflective surface.
13. An illuminated pattern device, comprising:
a circular pattern body having a pattern;
a bottom board disposed opposite to the pattern body, defining a space therebetween; and
four dot light sources arranged on the bottom board, the dot light sources defining imaginary square whose center is the same as a center of the projection surface, and a length of each side of the square being approximately the same as a radius of the projection surface.
14. An illuminated pattern device, comprising:
a main body defining a top surface and a bottom surface opposite to the top surface;
a pattern body positioned at the top surface, the pattern body defining a projection surface on the bottom board, the pattern body being elliptical in shape; and
two dot light sources arranged on the bottom board, at two focal points of the projection surface.
15. The illuminated pattern device of claim 14 , wherein the pattern body comprises a pattern and an unpatterned portion.
16. The illuminated pattern device of claim 14 , wherein the main body comprises a frame arranged around the pattern body.
17. The illuminated pattern device of claim 14 , wherein the bottom surface is reflective.