| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pseudo window device which produces radiation light further similar to that of a real window and has an appearance causing no odd feeling. <P>SOLUTION: The pseudo window device uses at least: one first luminescence source having a first semiconductor luminescence element and a first wavelength conversion member that converts the wavelength of the light emitted from the first semiconductor luminescence element to radiate white light at a first color temperature; and at least one second luminescence source having a second semiconductor luminescence element and a second wavelength conversion member that converts the wavelength of the light emitted from the second semiconductor luminescence element to radiate white light at a second color temperature higher than the first color temperature. Drive currents of the first and the second semiconductor luminescence elements are controlled, so that white light produced through synthesis of each white light emitted from the first and the second luminescence sources is radiated outward from a light radiation window formed of a window frame member. On this occasion, a light screening member is arranged at the outside of the light radiation window so as to shield a portion of the white light radiated from the light radiation window and allow the remainder to pass through. <P>COPYRIGHT: (C)2012,JPO&INPIT |
