摘要:
A mirror actuator system is provided for aligning images projected onto a curved screen by dual projectors. According to a preferred embodiment, a unique screw mechanism is provided for selectively slightly warping the mirror. The screw mechanism includes a load spreader in contact with the mirror, having a groove (400-2) for receiving a screw actuator (600-1) for applying positive or negative pressure to the load spreader (400-1) and thereby to a local area (i.e. zone) of the mirror. The actuator system provides low cost static pressure adjustment to the mirror for maintaining the focus quality while locally modifying the geometric 'aim' of the mirror. The groove in the load spreader provides tolerance to prevent thermal coefficient of expansion (TCE) distortion.
摘要:
Provided is a projector capable of suppressing deterioration of a portion of a projection portion irradiated with a laser beam while improving brightness. This projector (100) is formed to deviate optical axes of laser beams emitted from a plurality of laser beam generation portions (61a, 61b, 62a, 62b, 63a, 63b) respectively from each other so that the laser beams emitted from the plurality of laser beam generation portions respectively do not concentrate on one point of a projection portion (68a, 68b).
摘要:
An image projection apparatus including a light source configured to generate a light bundle, a display element configured to form an image using the light bundle, and a projection system configured to magnify and project the image, and a first and a second aspherical lens whose curved surfaces facing each other are disposed to be recessed in opposite directions to each other, and a mirror reflecting a light bundle refracted in the first and the second aspherical lens toward the outside.
摘要:
An image display device of the present invention comprises projectors, a reflecting mirror, a screen, an image signal processor which performs a distortion correction, and a base for supporting the projectors, the reflecting mirror, and the screen. The projectors, reflecting mirror, and screen are assembled in one to constitute a single moving unit, and the image display device further comprises a lifting device capable of moving the moving unit in a vertical direction with respect to the base.
摘要:
An image displaying apparatus (100) comprising an illumination optical system (1-3) , an image displaying element (7) configured to be illuminated by the illumination optical system (1-3), a projection optical system (8) configured to project light from the image displaying element (7) onto a screen (20), and a dust-proof member (9) provided between the screen (20) and the projection optical system (8), wherein the projection optical system (8) includes a projection lens (10)composed of plural lenses and a mirror (12) configured to reflect reflection light emitted through the projection lens (10) toward the screen (20), and wherein the dust-proof member (9) is configured to mitigate an irregularity in an illuminance distribution of reflection light to be projected onto the screen (20).
摘要:
Disclosed is an image displaying apparatus (100) including a light source (1), an image displaying element (7) configured to control exiting of incident light to display an image, an illumination optical system (1-6) configured to illuminate the image displaying element (7) with light exiting from the light source (1), and a projection optical system (8, 9, 10) configured to project an image displayed on a display surface of the image displaying element (7) onto a surface to be projected onto (20), to provide an enlarged display, wherein the projection optical system (8, 9, 10) includes a lens optical system (8), a first mirror (9) configured to reflect light transmitted through the lens optical system (8), and a second mirror (10) configured to reflect light reflected from the first mirror (9) toward the surface to be projected onto (20), wherein one of the first mirror (9) and the second mirror (10) is arranged at a position conjugate to the image displaying element (7), and wherein an optical surface of the one mirror is arranged to face in a vertically downward direction (z).
摘要:
A projection optical system for use in an image display apparatus having an illumination optical system applying light from a light source, and an image display device 7 receiving the light from the illumination optical system to form a projection image includes a projector lens 8 composed of plural lenses, a first mirror 9, and a second mirror 10 formed of a concave mirror. The projection optical system is configured to project the projection image onto a projection surface. A projection luminous flux passing through the projector lens to be incident on the first mirror is a luminous flux exhibiting divergence. The projection luminous flux reflected off the second mirror after having reflected off the first mirror is converged once, and the once converged projection luminous flux 14 is projected onto the projection surface. A lens surface of a lens located closest to the first mirror among the lenses of the projector lens is convex.
摘要:
A light modulation assembly for a digital projection apparatus comprising: a solid-state light source that provides an illumination beam(18); a spatial light modulator (60) having a plurality of tiltable micro-mirrors (66), each micro-mirror being actuable to tilt with respect to a tilt axis between a first tilt position (64) that provides on- state light and a second tilt position (65) that provides off-state light, and wherein the micro-mirrors deflect the illumination beam along an arced path defining a deflection plane (67) as they are tilted between the first tilt position and the second tilt position; and a light baffle (30) disposed alongside the optical axis(0) and in the path of the off -state light (23) from the micro-mirrors, the light baffle having a light - trapping surface (54) adapted to absorb the off -state light from the micro -mirrors on the spatial light modulator, the light - trapping surface having a plurality of protruding fins (32) that extend outward from the light - trapping surface at an oblique angle.