A conventional lighting bar 1, as shown in FIG. 1, comprises a semi-transparent tube 10, and two kinds of chemicals sealed separately by a small glass tube 11 in the tube 10. The small tube 11 is easily broken by bending the tube 2 so as to mix the two chemicals together to produce light.
The conventional lighting bar 1 is rather complicated in manufacturing by separately make the tube 10 and the small tube 11 11, and sealing a first kind of chemical such as oxalic acid in the small glass tube 11 and a second kind of chemical such as peroxide in the tube 10. So it cannot be continuously made by injecting process, nor by filling chemicals by an assembly line process.
USPTO Backgrounds
USPTO Backgrounds