Abstract:
PROBLEM TO BE SOLVED: To provide an image display apparatus and a projector which has a large screen and is made thinner. SOLUTION: The image display apparatus and the projector is composed of a screen 107 for displaying an image modulated according to an image signal, a first light source 101 that supplies the light applied to a first region 107a and a second light source 102 that supplies the light applied to a second region 107b of the screen 107 when the screen 107 is divided into at least the first region 107a and the second region 107b, and a galvano mirror 104 as a scanning part which scans the light from the first light source within the first region 107a and scans the light from the second light source 102 within the second region 107b. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an illuminator capable of efficiently utilizing light source light. SOLUTION: The illuminator 5 having a light source array 10 and a lens array 20 has such constitution that the thickness of a lens 22g corresponding to a green light source 12g is formed to be larger than the thickness of a lens 22r corresponding to a red light source 12r and a lens 22b corresponding to a blue light source 12b, and the principal point 23g of the lens 22g may be arranged astern of the principal point 23r of the lens 22r and the principal point 23b of the lens 22b, and illumination magnification by the green light source 12g is smaller than the illumination magnification by the red light source 12r and the blue light source 12b. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a projector which gives a bright and high contrast projected image and an optical device with a simple composition and at low cost. SOLUTION: The projector has a first light source part 101R which supplies a first color light beam, a second light source part 101G which supplies a second color light beam, a third light source part 101B which supplies a third color light beam, optical shaping parts 103R, 103G and 103B which shape the first color light beam, the second color light beam and the third color light beam into linear luminous fluxes, respectively, an optical scanning part 110 which scans with the linear luminous fluxes in the direction substantially orthogonal to the longitudinal direction of the linear luminous fluxes, a space optical modulating device 120 which modulates and emits the linear luminous fluxes scanned with the optical scanning part 110 according to an image signal, respectively, and an projection lens 130 which projects the light beams modulated with the space optical modulating device 120. Further, the optical scanning part 110 is so composed that the linear luminous fluxes of the first color light beam, the second color light beam and the third color light beam are continuously and repeatedly scanned with a predetermined spacing, respectively, and at a substantially same speed in the modulated region of the space optical modulating device 120. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a projector which has a high performance despite being compact and inexpensive. SOLUTION: Addressing light beams ABa, ABb and ABc are made incident on the back face of a light addressing liquid crystal 20 with a clearance of one pixel in the Y-direction of subscanning. The incident points of the addressing light beams ABa, ABb and ABc move in the X-direction of main scanning at a constant speed. Illumination light beams CLa, CLb and CLc are also made incident on a readout face 20b with a clearance of one pixel in the Y-direction of subscanning direction. The incident points of the respective illumination light beams CLa, CLb and CLc move at a constant speed in the X-direction. In this case, the respective illumination light beams are made incident on the positions which are dislocated with respect to the addressing light beams by several pixels in the X-direction. As a result, a readout with the illumination light beams is performed with a time delay of scanning time equivalent to several pixels after the writing-in with the addressing light beams. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To uniformize intensity of three types of illumination light with compact constitution in a uniformizing technique of illumination light. SOLUTION: A second light transmission body 32 having an incident face 32a of second colored lights L1R and L2R and a third light transmission body 33 having an incident face 33a of third colored lights L1B and L2B are jointed to a first light transmission body 31 having an incident face 31a of first colored lights L1G and L2G and an emitting face 30b facing the incident face 31a. A first dichroic filter 32d is formed which reflects the first colored lights L1G, L2G and the third colored lights L1B, L2B, and transmits the second colored lights L1R, L2R on a jointed face 31f of the first and second light transmission bodies 31 and 32. A second dichroic filter 33d is formed which reflects the first colored lights L1G, L2G and the second colored lights L1R, L2R, and transmits the third colored lights L1B, L2B on a jointed face 31g of the first and third light transmission bodies 31 and 33. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting device etc., with which a light projection image can be obtained by effectively using a lighting optical system. SOLUTION: The lighting device has a light source part 101 which supplies light, the lighting optical system 102 which guides the light from the light source 101 to a spatial optical modulating device 103, and a projection lens 104 which is arranged nearby the lighting optical system 102 and projects light modulated by the spatial optical modulating device 103, the lighting optical system 102 has a cut part 102a in nearly the same shape as an outer circumferential part 104a of the projection lens 104. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a small-sized, light-weight projector having a solid-state light emitting element as a light source. SOLUTION: The projector is provided with a light emitting diode(LED) 101 as the solid-state light emitting element for supplying light, a reflection type spatial light modulating device 104 as a tilt mirror device for modulating the light in accordance with an image signal, and a projecting lens 105 for projecting the modulated light, the LED 101 is arranged between the reflection type spatial light modulating device 104 and the exit side aperture part 105b of the projecting lens 105, and also, arranged near the projecting lens 105. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an illuminator whose illuminating efficiency can be enhanced and a projection type display device which provides bright and high- contrast display. SOLUTION: The illuminator 1 to be used in this projection type display device is provided with an LED array 2 having a plurality of chip LEDs 8R, 8G, 8B, a plurality of tapered rod lenses 3 which are provided in correspondence with respective chip LEDs 8R, 8G, 8B, a rod lens 4 common to the plurality of tapered rod lenses 3 and a light-emission lens 5 for making rays of light entering from the rod lens 4 exit with prescribed outgoing angles. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a projection type display device which can change the quantity of light illuminating an optical modulation means without changing light itself emitted from a lamp and has an excellent effect in respects of power of video expression and adaptability to environments for use and to provide its driving method. SOLUTION: With respect to the projection type display device, a dimming means 30 comprises a color separation means 21 for separating emitted light from a light source 2 into a plurality of color light having different colors, light quantity control means 23, 24, and 25 for controlling the transmission quantities of respective color light emitted from the color separation means 21, and a color synthesizing means 22 for synthesizing respective color light emitted from the light quantity control means 23, 24, and 25, and the light quantity control means 23, 24, and 25 are controlled in time division by color light on the basis of information from the outside to be able to control the illuminance and/or the color of light illuminating an optical modulation means 20.
Abstract:
PROBLEM TO BE SOLVED: To provide a parallel flat plate type electrostatic actuator which can drive a movable electrode with small power consumption and can quickly makes the electrode take an attitude in parallel to a substrate in addition to a tilt attitude as a parallel flat plate type micro actuator which controls the attitude of the movable electrode by electrostatic driving. SOLUTION: A fixed electrode 4 is divided into >=3 parts to make it possible to make the area of the fixed electrode 4 different according to whether or not it is driven when the movable electrode 3 is in motion and has its attitude held, when the movable electrode 3 is changed from a tilt state to another tilt state, the movable electrode 3 and substrate 2 are placed in an entire-surface abutting state wherein they are brought into parallel contact with each other during the state change to improve the operation efficiency, thereby reducing the power consumption.