JP2009042425A5 - - Google Patents

Claims (11)

A screen with a fluorescent region containing a fluorescent material;
A first light source that emits excitation light capable of exciting the fluorescent material;
At least one second light source that emits visible light;
Driving means for driving movement of said first light source and the second light source in accordance with image information,
E Bei and scanning means for査run the light of the first light source and the second light source or al in a first direction and a second direction intersecting therewith at on the screen,
Wherein the screen comprises a non-fluorescent regions that do not contain pre-Symbol fluorescent material, the fluorescent regions and one region of said non-fluorescent region is provided multiple distributed in plan view, the other region of the one It provided between the realm,
The second of the visible light emitted from the light source is diffused is emitted to the non-fluorescent region, and the first light source or RaIzuru morphism and said excitation light is irradiated to the fluorescent region and the visible light fluoresce at different wavelengths, an image display apparatus and displaying an image corresponding to the image information on the screen. The fluorescent regions are provided multiple distributed in plan view, an image display apparatus according to claim 1 is provided between the non-fluorescent area of the fluorescent area. 5. The image display device according to claim 3 , wherein each fluorescent region has a circular shape, and a diameter of each fluorescent region is smaller than a size of an irradiation region of the visible light and the excitation light on the screen. . Wherein each fluorescent region, forms a straight band, a plurality of fluorescent regions, an image display apparatus of claim 2, are provided on the flat row at equal intervals on one another. 5. The image display device according to claim 4 , wherein a width of each of the fluorescent regions forming the band shape is smaller than a width of an irradiation region of the visible light and the excitation light on the screen. Before Stories second light source comprises two light sources for emitting red and blue light, respectively,
The image display device according to claim 1 , wherein the fluorescent region emits green light when irradiated with excitation light from the first light source. It 請 Motomeko 1 to you simultaneously irradiated to the same area on the front Symbol screen and the visible light emitted before and Symbol the excitation light emitted from the first light source from the second light source according to any one of the 6 Image display device. On the side opposite to the side where the light is irradiated from the first light source and the second light source of the screen, the excitation light wavelength band reflector for reflecting towards the excitation light to the screen direction is provided the image display apparatus according to any one of claims 1 to 7. On the side where the light from the first and second light sources of the screen is illuminated, the visible light and transmitted through the excitation light, and reflects the entire or a portion of the light in the wavelength band of the fluorescent the image display apparatus according to any one of claims 1 to 8 fluorescence wavelength band reflector is provided. On the side where the light from the first and second light sources of the screen is illuminated, any one of the micro-lens array for converging the excitation light to the fluorescent region claims 1 provided 9 The image display device described in 1. It said first light source, the image display apparatus according to any one of claims 1 is a laser light source 10.