Patent 7490369 was granted and assigned to Jason international on February, 2009 by the United States Patent and Trademark Office.
A bathtub has a shell for transmitting light thorough a thickness. A light emitting diode is disposed under the shell, in which the light from the light emitting diode is transmitted thorough the thickness of the shell. A bathtub includes a reflector sheet for reflecting light from the light emitting diode. The light emitting diode may be disposed between the reflector sheet and the shell. A bathtub includes a light diffuser panel disposed between the shell and the light emitting diode. A bathtub includes a support panel disposed between the shell and the light emitting diode.