Abstract: A screen assembly and a rear-projection type graphic display device are provided to block overscanned light Lo projected outside a fresnel lens screen. The screen assembly 20A includes the fresnel lens screen 21, a screen retainer 22 and a light blocking member 23. The fresnel lens screen 21 forms an image on the side of a front surface 21b by image light Le incoming through a back surface 21a. The screen retainer 22 has a back surface 22a whose area is larger than the back surface 21a and the front surface 21b and which is opposed to the front surface 21b to hold it, and a front surface 22b located on opposite side of the back surface 22a to allow an image formed by the image light incoming through the back surface 21a to be visible through the front surface 22b. The screen retainer 22 has an optical transparency. The light blocking member 23 is arranged so as to surround respective side surfaces of the screen 21 in the form of a frame.

Abstract: A projection type display device includes a image displaying element having image display areas for displaying a plurality of images respectively, a projection optical system having an emitting part for emitting projection light flux to the image display areas of the image displaying element, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas of the image displaying element. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.

Abstract: A light source device includes an optical element 22 having a first face 1 opposed to a solid light emitting element 21. The optical element 22 includes second and third faces 2, 3 opposing in parallel to each other and both substantially perpendicular to the first face 1, a fourth face 4 substantially perpendicular to the second and third faces 2, 3 and also obliquely-opposed to the first face 1 and a fifth face 5 as an exit face. The fifth face 5 has an area smaller than an area of a light emitting face of the solid light emitting element 21. The light source device further includes a polarization converting element 42 having an incident surface opposing in substantially-parallel to the fifth face 5 through a space, polarization separating elements 43 for separating incident light from the optical element 22 in polarization, a first reflecting surface 45 for reflecting one of polarization-separated fluxes and wave plates 44 for converting either of phases of the polarization-separated fluxes.

Abstract: A screen assembly and a rear-projection type graphic display device are provided to block overscanned light Lo projected outside a fresnel lens screen. The screen assembly 20A includes the fresnel lens screen 21, a screen retainer 22 and a light blocking member 23. The fresnel lens screen 21 forms an image on the side of a front surface 21b by image light Le incoming through a back surface 21a. The screen retainer 22 has a back surface 22a whose area is larger than the back surface 21a and the front surface 21b and which is opposed to the front surface 21b to hold it, and a front surface 22b located on opposite side of the back surface 22a to allow an image formed by the image light incoming through the back surface 21a to be visible through the front surface 22b. The screen retainer 22 has an optical transparency. The light blocking member 23 is arranged so as to surround respective side surfaces of the screen 21 in the form of a frame.

Abstract: A projection type display device includes a image displaying element 20 having image display areas 20a, 20b for displaying a plurality of images respectively, a projection optical system 30A having an emitting part for emitting projection light flux to the image display areas 20a, 20b of the image displaying element 20, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas 20a, 20b of the image displaying element 20. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.

Abstract: A light source device comprises a waveguide, an electrodeless lamp, a probe, and conversing means. The waveguide is formed to contain a medium enabling a microwave to resonate and has a surface and an aperture cavity with an aperture opened at a predetermined position of the surface. The electrodeless lamp is loaded in the aperture cavity in a state where part of the electrodeless lamp is protruded from the surface of the waveguide so that the part of the electrode lamp emits light in response to applying the microwave to the electrodeless lamp. The probe supplies a high-frequency signal to the waveguide so that the high-frequency signal is converted to the microwave in the waveguide. The converging means is disposed on the surface of the waveguide to face the aperture cavity and utilizes all the light emitted from the part of the electrodeless lamp to converge the light.

Abstract: A light source device includes an optical element 22 having a first face 1 opposed to a solid light emitting element 21. The optical element 22 includes second and third faces 2, 3 opposing in parallel to each other and both substantially perpendicular to the first face 1, a fourth face 4 substantially perpendicular to the second and third faces 2, 3 and also obliquely-opposed to the first face 1 and a fifth face 5 as an exit face. The fifth face 5 has an area smaller than an area of a light emitting face of the solid light emitting element 21. The light source device further includes a polarization converting element 42 having an incident surface opposing in substantially-parallel to the fifth face 5 through a space, polarization separating elements 43 for separating incident light from the optical element 22 in polarization, a first reflecting surface 45 for reflecting one of polarization-separated fluxes and wave plates 44 for converting either of phases of the polarization-separated fluxes.

Abstract: A resist composition that includes an organic solvent (S) and a base material component dissolved in the organic solvent (S), wherein the organic solvent (S) contains ethyl lactate and an antioxidant, and the concentration of the antioxidant within the organic solvent (S) is 10 ppm or greater.

Abstract: A light source device includes a solid light emitting element 1 having a reflection film on the back side, first and second reflection surfaces 2, 3 opposing each other in parallel and substantially perpendicular to a front surface of the solid light emitting element 1 and a third reflection surface 4 substantially perpendicular to the first and second reflection surfaces 2, 3 and opposing the front surface of the solid light emitting element 1. The third reflection surface 4 is inclined to the front surface of the solid light emitting element 1. The reflection film of the element 1, the first, second and third reflection surfaces 2, 3, 4 do constitute a closed polyhedron having an emission opening 5 smaller than a light emitting surface of the element 1. Light emitted from the element 1 is emitted to an outside through the emission opening 5.

Abstract: A light source device comprises a waveguide, an electrodeless lamp, a probe, and conversing means. The waveguide is formed to contain a medium enabling a microwave to resonate and has a surface and an aperture cavity with an aperture opened at a predetermined position of the surface. The electrodeless lamp is loaded in the aperture cavity in a state where part of the electrodeless lamp is protruded from the surface of the waveguide so that the part of the electrode lamp emits light in response to applying the microwave to the electrodeless lamp. The probe supplies a high-frequency signal to the waveguide so that the high-frequency signal is converted to the microwave in the waveguide. The converging means is disposed on the surface of the waveguide to face the aperture cavity and utilizes all the light emitted from the part of the electrodeless lamp to converge the light.

Abstract: A white light emitted from a light source is homogenized by an integrator optical system, transmitted through a color polarizer (113) to be turned into an R light and a G light of a P polarized light, and transmitted through a color polarizer (118) to be turned into a G light of an S polarized light and an R light of a P polarized light. These R light and G light are subjected to light modulation in a reflection type spatial light modulation element for G and a reflection type spatial light modulation element for R arranged at unequal distances from a polarization split surface of a polarizing beam splitter (103), and emitted from a projection lens having an axial chromatic aberration corresponding to the unequal distances.

Abstract: An image display apparatus includes a diaphragm (9b) arranged at a pupil position. The shape of an aperture of the diaphragm (9b) is similar to the shape of a light source image formed by an illuminating optical system at the pupil position. An area varying mechanism (90) varies the area of the aperture of the diaphragm (9b) in response to a focal length varying operation of a projection lens (9). This prevents an excessive opening from being formed around a light source image cast by the illuminating optical system, thereby preventing the deterioration of displayed images due to unwanted light that may pass through the excessive opening.

Abstract: A polarizing illuminant apparatus includes a surface emission light source 1 that emits a monochroic and indefinitely polarized light, a tabular photonic crystal 2 arranged on a light emitting surface 1a of the surface emission light source 1 to receive the light emitted from the light emitting surface 1a, a quarter wave plate 3 that receives a light emitted from the surface emission light source 1 and transmitted through the photonic crystal 2 and a reflective polarization plate 4 arranged in substantially-parallel with the photonic crystal 2 to receive a light transmitted through the quarter wave plate 3.

Abstract: An image display apparatus includes a diaphragm (9b) arranged at a pupil position. The shape of an aperture of the diaphragm (9b) is similar to the shape of a light source image formed by an illuminating optical system at the pupil position. An area varying mechanism (90) varies the area of the aperture of the diaphragm (9b) in response to a focal length varying operation of a projection lens (9). This prevents an excessive opening from being formed around a light source image cast by the illuminating optical system, thereby preventing the deterioration of displayed images due to unwanted light that may pass through the excessive opening.

Abstract: In a preferred embodiment of the present invention, white light emitted from a light source is homogenized by an integrator optical system; the R and the G light component of the white light becomes P polarization light as the white light passes through a color polarizer; and then the G light component is converted into P polarization light while the R light component remains unchanged as the G and the R light pass through another color polarizer. Then, the G and the R light are light-modulated respectively by reflection type spatial light modulation elements for the G and the R light, the elements being disposed so that they have a different distance from a polarizing split face of a polarizing beam splitter. The G light that has been light modulated passes through a lens causing an axial chromatic aberration corresponding to the distance difference and thus exits therefrom.

Abstract: An image display apparatus includes a diaphragm (9b) arranged at a pupil position. The shape of an aperture of the diaphragm (9b) is similar to the shape of a light source image formed by an illuminating optical system at the pupil position. An area varying mechanism (90) varies the area of the aperture of the diaphragm (9b) in response to a focal length varying operation of a projection lens (9). This prevents an excessive opening from being formed around a light source image cast by the illuminating optical system, thereby preventing the deterioration of displayed images due to unwanted light that may pass through the excessive opening.

Abstract: A white light emitted from a light source is homogenized by an integrator optical system, transmitted through a color polarizer (113) to be turned into an R light and a G light of a P polarized light, and transmitted through a color polarizer (118) to be turned into a G light of an S polarized light and an R light of a P polarized light. These R light and G light are subjected to light modulation in a reflection type spatial light modulation element for G and a reflection type spatial light modulation element for R arranged at unequal distances from a polarization split surface of a polarizing beam splitter (103), and emitted from a projection lens having an axial chromatic aberration corresponding to the unequal distances.

Abstract: An image display apparatus includes a diaphragm (9b) arranged at a pupil position. The shape of an aperture of the diaphragm (9b) is similar to the shape of a light source image formed by an illuminating optical system at the pupil position. An area varying mechanism (90) varies the area of the aperture of the diaphragm (9b) in response to a focal length varying operation of a projection lens (9). This prevents an excessive opening from being formed around a light source image cast by the illuminating optical system, thereby preventing the deterioration of displayed images due to unwanted light that may pass through the excessive opening.