NOVELTY - Solar energy converter has an electron accelerator and a cathode respectively connected with positive and negative terminals of an electric field supplier, and an electron collector used as a negative generator electrode. The cathode is used as a positive generator electrode. The collected electrons in the electron collector migrate to the electron emitter to generate electricity.    USE - The device is used for converting solar energy emitted from the sun into electric energy.    ADVANTAGE - The inside of the solar energy converter is kept full with inert gas by using the sealed vessel, thus the electron emission efficiency of the electron emitter is preferable and the electrons can migrate more efficiently. Since the electron accelerator is placed within an insulated material, the emitted electrons hardly migrate to the electron accelerator, thus providing almost no leakage-current flow from the electron accelerator and almost no energy loss in this part. The inventive solar energy converter enables efficient use of sunlight and achieves cost reduction and easy assembling to disuse of a sunlight reflection member (8). It increases the conductivity of the cathode, and improves the efficiency of energy conversion.    DETAILED DESCRIPTION - Solar energy converter comprises a light-concentrating instrument (3) for concentrating sunlight; an electron emitter (1) in an insulated vacuum vessel (2), emitting electrons in a vacuum as a temperature rises from irradiation of the sunlight concentrated by the light-concentrating instrument; an electron accelerator (4) within the light-concentrating instrument; a cathode (5) on a surface of the electron emitter opposite to a light-irradiated surface which is irradiated by the sunlight (9) and electrically connected with the electron emitter; an electric field supplier (6) having a positive terminal and a negative terminal; and an electron collector (7) in the vacuum vessel, collecting the emitted electrons flying from the electron emitter toward the electron accelerator. The electron accelerator and the cathode are respectively connected with the positive and negative terminals of the electric field supplier. The electron collector and the cathode are respectively used as negative and positive generator electrodes. The collected electrons in the electron collector migrate to the electron emitter to generate electricity.    DESCRIPTION OF DRAWING(S) - The figure is a cross-sectional side view showing a solar energy converter.    Electron emitter (1)    Vacuum vessel (2)    Light-concentrating instrument (3)    Electron accelerator (4)    Cathode (5)    Electric field supplier (6)    Electron collector (7)    Sunlight reflection member (8)    Sunlight (9)