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Match Document Document Title
7453639 Diffusion sheet, rear projection screen provided with diffusion sheet, method of manufacturing mold for diffusion sheet, and method of manufacturing diffusion sheet  
In a diffusion sheet 101 , a plurality of approximately trapezoidal columnar unit lens portions 11 are disposed such that the long-axis directions thereof are in parallel with each other, and...
7453638 Fresnel lens sheet, rear projection screen, and rear-projection-type display  
The present invention provides a Fresnel lens sheet that scarcely makes the projected image distorted, and others. The Fresnel lens sheet has a plurality of unit total reflection Fresnel lenses...
7436593 Screen, fresnel lens sheet used therefor, and image display apparatus using the same  
Images that are bright even on the periphery of a transmissive screen are obtained by reducing reflection loss of the screen when the screen incident angle of the image light entering the upper...
7423808 Rear projection screen with spatial varying diffusing angle  
A Fresnel lens of the prior art is split into two Fresnel lenses to allow easier control of the horizontal and vertical viewing angles. In a second embodiment, the Fresnel lens is entirely...
7408708 Diffusing sheet, surface light source unit, and transmission type display  
A diffusing sheet, a surface light source unit, and a transmission type display that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless...
7408707 Multi-region light scattering element  
A multi-region light scattering element with the optical characteristics of low speckle, high resolution high contrast, and high gain when used as an imaging element without any resulting loss of...
7403335 Screen, Fresnel lens sheet used for the same, and image display apparatus using the same  
The present invention provides a screen suitable for reducing the longitudinal dimension of a set. The present invention includes two prism sections. One is a totally reflective prism section ( 10...
7379240 Rear projection-type screen and rear projection-type image display device  
A rear projection-type screen includes two sheet-like members having lenses prevented from being deformed and scratched. In the rear projection-type screen ( 5 ) for passing and focusing image...
7375884 Rear projection screen and optical device thereof  
A rear-projection screen comprises an optical unit, a light-blocking layer, and an optical lens. The optical unit has a first surface and a second surface. The first surface is opposite to the...
7375883 Lens sheet, transmission type screen, and rear projection type display  
A lens sheet, transmission screen, and a rear projection display are provided. The lens sheet includes fly-eye lens elements periodically arranged on one side of a transparent base, wherein the...
7369311 Lens sheets for rear projection screens  
A lens sheet for use as a Fresnel lens sheet or a lenticular lens sheet of rear projection screens, which includes a plastic substrate and a lens element disposed on the plastic substrate. The...
7364300 Theta-parallax-only (TPO) displays  
A 3-D display may comprise a rotating optical diffuser for displaying 3-D parallax images in specific substantially unidirectional viewing zones as the rotating optical diffuser rotates; and a...
7362503 Screen, Fresnel lens sheet used for the same, and image display apparatus using the same  
The present invention provides a technology that makes it possible to display high-quality images by reducing a reflection loss of the image light entering the upper left and right ends of a...
RE40226 Rear projection screen having reduced scintillation  
A rear projection screen of the present invention includes lens sheets or optical sheets having an optical function of condensing or diffusing light. The lens sheets or optical sheets have, as a...
7352508 Fresnel lens sheet and transmission type screen comprising it  
The present invention provides a Fresnel lens sheet capable of effectively preventing such troubles as the production of double images that occurs due to stray light. A Fresnel lens sheet ( 1 )...
7350925 Total internal reflection Fresnel lens and optical system using the same  
Described is an optical lens having a light-receiving surface facing a light source and a first structured surface opposite a first portion of the light-receiving surface. The first structured...
7345819 Light diffusing member  
There is provided a light diffusing member for a transmission screen that has a satisfactory surface protective effect while maintaining excellent light diffusing effect and antireflective effect....
7342728 Fresnel lens, backprojection screen, and corresponding backprojection system and unit  
The invention relates to a Fresnel lens. Each refractive structure of the lens is bounded by two surfaces, the second surface making a second angle with the normal to the plane of incidence. At...
7342720 Surface protective member for transmission screen  
There is provided a surface protective member for a transmission screen that has excellent antireflective effect while maintaining a surface protective effect. The surface protective member for a...
7341353 Variable fresnel screen for use in projection device  
A thin rear projection television using a wide angle lens system is provided. In an embodiment, a fresnel screen is used in which there are at least two spatial zones in the screen with different...
7339733 Fresnel lens sheet and rear projection screen using it  
A Fresnel lens sheet which is bright due to a small light quantity loss, is restricted in speckles and ghosts, does not produce moires, and can be used in an inexpensive transmitting screen,...
7331679 Reflection unit having a mirror array, and projection display system employing the same  
A projection display system includes a screen, an illumination projecting system to form an image using light radiated by a light source, to magnify the image, and to project the image along a rear...
7330311 Transmission type screen having directional light scattering lens and fresnel lens  
There is provided a transmission type screen having a directional light scattering lens and a fresnel lens, wherein the fresnel lens has contact portions that contact with the directional light...
7317572 Fresnel lens sheet, rear projection screen and rear projection display  
There is provided a Fresnel lens sheet for converging light rays fallen thereon from oblique directions, and capable of reducing the reflection of external light, of enabling displaying images in...
7307107 Photopolymerizable composition and use thereof  
A photopolymerizable composition comprising a polymerizable compound and a photopolymerization initiator, wherein the polymerizable compound is characterized by comprising (a) a bifunctional...
7295370 Projection television and manufacturing method thereof  
A projection television including: a screen having a plurality of image-forming sheets and an anti-dust film having a first side disposed between the image-forming sheets and a second side disposed...
7295369 Fabrication method for rear-projection screen  
A fabrication method for a rear-projection screen includes the steps of providing a light source and a lenticular lens sheet; projecting parallel light onto the lenticular portions of a lenticular...
7292391 Method of manufacturing a lens substrate with straight light control portions, a lens substrate with straight light control portions, a transmission screen and a rear projection  
A method of manufacturing the lens substrate with straight light control portions 1 A that is provided with a plurality of convex lenses (microlenses) 32 on a surface thereof and is used so that...
7277227 Fresnel lens sheet, transmission screen provided with the same and rear projection display  
A Fresnel lens sheet has an entrance surface ( 1 a ) and an exit surface ( 1 b ). A plurality of prisms ( 2 ) each having a refraction surface ( 3 ) and a total-reflection surface ( 4 ) are formed...
7271955 Transmission screen  
A transmission screen is capable of preventing the reduction of contrast in images due to external light such as emitted by internal lighting fixtures. The transmission screen includes a Fresnel...
7259912 Fresnel lens having reduced distortions  
A display device for displaying images in a rear projection display device is provided. The display device may include, amongst other structure, a screen including a lens portion and a frame...
7256935 Light transmission sheet, rear projection type projector, light transmission sheet manufacturing device, program, and computer-readable medium  
To eliminate ghosts caused by retroreflection of projected light and obtain high resolution images. Fine irregularities 5 are randomly formed on the plane of incidence 2 a of a Fresnel lens...
7253955 Contrast improving sheet and rear projection screen provided with the same  
A contrast improving sheet includes a first optical functional element and a second optical functional element on the viewing side thereof. The first optical functional element has a plurality of...
7253954 Flat valley fresnel lens  
A Fresnel lens. The Fresnel lens includes an input side configured to receive the image and an output side, opposite the input side, configured to display the image. The input side includes a first...
7245429 Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheet  
A total reflecting prism portion is formed on an image generation source side of a Fresnel lens sheet which constitutes a rear projection type screen. The total reflecting prism portion is formed...
7245427 Fresnel lens sheet holding structure and rear projection display  
A Fresnel lens sheet holding structure holds a thin Fresnel lens sheet formed on a forming mold easily releasable from the forming mold in a satisfactory planarity on a rear projection display. A...
7242536 Fresnel optical element and projection display device  
Each of a plurality of Fresnel prisms 12 is formed so that a refracting surface 12 thereof includes a non-light incidence surface 12 c upon which any ray of light emitted from a projector 1 ...
7239444 Display front plane, display lenticular lens, and display fresnel lens  
A display front plane having an anti-reflection film in thickness uniformity and good adhesion between the anti-reflection film and the base material is supplied. Each of a display lenticular lens...
7237908 Image display system  
An image display system includes a light valve 14 for providing image information to light converged by a converging lens 13 and for emitting the light, a projective optical system 20 ...
7233440 Image display screen having wide vertical and horizontal viewing angles and projection television including the same  
Provided is an image display screen having wide horizontal and vertical viewing angles and a projection television including the same. The image display screen includes a Fresnel screen, a first...
7233439 Screen member for a transmission screen, a transmission screen and a rear projection  
A screen member for a transmission screen includes: a microlens substrate, a light incident face thereof being formed with a plurality of microlenses for condensing incident light; a black matrix...
7230758 Total internal reflection fresnel-lens and devices  
An off-axis Fresnel lens is disclosed that, when combined with a rear projection screen (comprising, e.g., a lenticular lens, a diffuser, or both), enables construction of rear-projection-type...
7224525 Optically transmitting sheet and screen  
Disclosed are a light transmission sheet and a screen that can realize good color reproduction while suppressing a lowering in light transmittance. The light transmission sheet comprises a light...
7221507 Projection-type picture display apparatus and screen used thereby  
A screen for use in a projection-type image display apparatus having an image displaying element which includes a plurality of pixels for modulating light from a light source so as to form an...
7212339 Transmissive screen and rear projection type image display apparatus using same  
A purpose of the present invention is to provide a simple configuration for bonding a lenticular lens sheet, a front sheet, and light diffusion layers together to reduce cost. To accomplish the...
7190517 Light diffusing substrate, transmission screen, and display device  
A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the...
7187495 Method of manufacturing a screen member for a transmission screen, a screen member for a transmission screen, a transmission screen and a rear projection  
A screen member for a transmission screen is manufactured by a method including the steps: preparing a microlens substrate, of which the light incident face is formed with a plurality of...
7184212 Observation apparatus  
An observation apparatus is disclosed that includes two projection devices, a display panel, and a retaining and supporting member. The two projection devices are each provided with an aperture,...
7184211 Transmissive screen and rear-projection display device  
A transmissive screen is provided that controls moire pattern occurrence to prevent the degradation of image quality. The transmissive screen includes a Fresnel lens sheet having a Fresnel lens...
7173761 Fresnel lens sheet  
The present invention provides a Fresnel lens sheet capable of successfully avoiding the “collapse”, “abrasion” and “moire” problems. A Fresnel lens sheet constitutes, together with a...
Matches 1 - 50 out of 301 1 2 3 4 5 6 7 >