Abstract: An electronic device includes a light emitting layer, a light conversion layer and an adjustable structure. The light emitting layer has a plurality of light emitting units for emitting light. The light conversion layer converts the wavelength of the light emitted by at least one light emitting unit to provide converted light. The adjustable structure is controlled to adjust a light penetrating area to correspond to the affected part to be treated, wherein at least one of the light and the converted light passes through the light penetrating area to irradiate the affected part.

Abstract: A combination of travel bag and folding table which includes a travel bag, a table board having a first end pivoted to a top side of the travel bag and a free end, a retractable stand having one end pivoted to the free end of the table board and an opposite end mounted with a foot, hinge means coupled between the travel bag and the table board for permitting the table board to be turned about an axis within 90.degree., first lock means for securing the table board, the retractable stand and the travel bag together when the table board and the retractable stand are collapsed, and second lock means for stopping the wheels of travel bag from moving.