Patent ID: 7832891

Claim:
An illuminating device which accesses natural energy, an independent cylindrical unit, wherein a solar thermal radiation wave is absorbed and then operates air molecules inside a once-through passage, allowing an ionization speed of the air molecules to be increased, so as to form mechanical energy which is then converted into an electric current to be used for illumination through an access control, comprising: a cylindrical heat conductor, which is put upright on a ground surface, a hollow interior of which is formed with the once-through passage, an outer surface of which is a heat absorption end, an inner surface of which is an emission end, a lower end of which is provided with an inlet, and above which is provided with an outlet; a power generator unit, which is assembled at an end of the once-through passage close to the outlet in suspension, and includes an air screw and a magneto generator, with a transmission shaft being connected to the air screw which is suspended downward and overlapped on a center of the once-through passage; an illuminating device which is provided on an exterior of the once-through passage; an accumulator device which is provided below the inlet; a set of electric wire which is connected to each mechanical-electrical device; and a control circuit which operates the mechanical-electrical devices.