Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8416494 | Screen, projector, and image display device A screen includes; a plurality of layers including a diffusion layer that diffuses incident light; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction... | 04/09/2013 |
| 8294987 | Image transforming device An image transforming device enables 3-D auto-stereoscopic display of a two-dimensional projected image. Optical waveguides in the form of ribbons are used. A stack of ribbons at a receiving end receives the projected image. A horizontal and vertical ribbon arrangem... | 10/23/2012 |
| 8130445 | Screen and projector There is provided a screen and a projector using a simple configuration and operation to make speckles less visible. A screen 10 on which light beams are incident includes a lenticular lens 11 as a first layer having viewing angle control means for enl... | 03/06/2012 |
| 8089692 | Projection type image display apparatus A projection type image display apparatus includes an optical engine that emits a light according to image signal, a Fresnel lens on which the light emitted by the optical engine is incident and emitting the light as a parallel light, and a diffusion member that dif... | 01/03/2012 |
| 7986457 | Screen, projector, and image display device A screen includes; a plurality of layers including a diffusion layer that diffuses incident light; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction... | 07/26/2011 |
| 7961389 | Screen and projector There is provided a screen and a projector using a simple configuration and operation to make speckles less visible. A screen 10 on which light beams are incident includes a lenticular lens 11 as a first layer having viewing angle control means for enl... | 06/14/2011 |
| 7880965 | Projection-type image display device In a projection-type image display device, a driven member of a screen is displaced in a plane parallel to the screen. The driven member can be a Fresnel lens or a diffusing member. An elastic retaining unit holds the driven member in such a manner as to be capable ... | 02/01/2011 |
| 7864419 | Optical scanning assembly An image scanning assembly comprising at least two optics wherein at least one of the optics is movable relative to the other. An embodiment may be used to scan images for a 3D display. ... | 01/04/2011 |
| 7796330 | Anti-speckling laser rear-projection screen structure and methodology A rear-projection screen structure, and an associated method, for creating on the front, image-viewing side of a rear-projection screen structure an anti-speckled, rear-projected, laser-beam image. Methodologically, and as implemented by the structure of the inventi... | 09/14/2010 |
| 7764425 | Screen and projector There is provided a screen and a projector using a simple configuration and operation to make speckles less visible. A screen 10 on which light beams are incident includes a lenticular lens 11 as a first layer having viewing angle control means for enl... | 07/27/2010 |
| 7697201 | Screen, rear projector, projection system, and image display unit A screen that displays images as a result of receiving projection light, includes: a plurality of plate components that are optically transparent and are provided apart from each other; a scatterer that is placed in a light scattering space that is formed between th... | 04/13/2010 |
| 7688506 | Screen and image projection apparatus Light emitted from a light source is modulated and projected on a screen. The screen includes a securing member, a diffuser plate supported by the securing member using a plurality of elastic members, where the elastic members are disposed so that the diffuser plate... | 03/30/2010 |
| 7660037 | Screen, projector, and image display device A screen includes; a plurality of layers including a diffusion layer that diffuses incident tight; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction... | 02/09/2010 |
| 7652819 | Projection-type image display apparatus A Fresnel lens collimates a light modulated by an image signal and outputs a collimated light. A diffusion member diffuses the collimated light and outputs a diffused light. A driver continually moves the Fresnel lens or the diffusion member on a predetermined traje... | 01/26/2010 |
| 7593159 | Display device A display device of the present invention is provided with a light source (4) for emitting coherent light and displaying an image, and an image receiving part (1) comprising not less than two screens, onto which the coherent light is projected, wherein... | 09/22/2009 |
| 7425072 | Method and apparatus for displaying 3-D image An apparatus for displaying a 3-D image has a projector, and a projection controller. The projector has a projection optical system, and projects a series of 2-D images on different projected-positions in a depth direction, in order, by using light passing through t... | 09/16/2008 |
| 7277226 | Radial multiview three-dimensional displays A 3D display may comprise a rotating optical diffuser screen; and a projector for projecting images through the rotating optical diffuser screen. The rotating optical diffuser screen may be structured to optically create an exit pupil, said exit pupil having a limit... | 10/02/2007 |
| 7230757 | Lenticular sheet and transmission type screen using the same A lenticular sheet obtained by the method including forming lenticular lens section on the input side of the sheet; forming an irregular section having a plurality of depressions and protrusions on the output side of the sheet; forming a light-absorbing layer on eac... | 06/12/2007 |
| 7221506 | Method and system for projecting audio and video in an outdoor theater Images are projected onto two adjacent screens whereby one screen is movable with respect to the second screen. A projection system disposed generally in front of the two screens is capable of displaying images on each screen independently when the two screen are in... | 05/22/2007 |
| 7059729 | Display apparatus and image pickup apparatus A display apparatus comprises a screen which can rotate and provides a part for controlling view angle, a mirror group which comprises a plurality of mirrors arrayed in a ring form along a surface of a circular cone which sets a central axis as an axis of rotation o... | 06/13/2006 |
| 7042640 | Projection screen unit with projection surfaces optimized for different ambient light levels A projection screen unit includes a first projection surface optimized for a predetermined range of ambient conditions and a second projection surface optimized for a second, different range of ambient conditions. ... | 05/09/2006 |
| 7038850 | CD metrology analysis using green's function A method for modeling optical scattering includes an initial step of defining a zero-th order structure (an idealized representation) for a subject including a perturbation domain and a background material. A Green's function and a zero-th order wave function are ob... | 05/02/2006 |
| 7035007 | Reflection screen apparatus and projection system using the same A reflection screen apparatus in which a projection apparatus projects an image based on received image data and an observer observes the image comprises a screen reflection surface which visibly diffuses and reflects the image projected by the projection apparatus ... | 04/25/2006 |
| 6950153 | Video image rotating apparatus A video image rotating apparatus includes a rear projection screen rotatably disposed in a generally horizontal plane, thus allowing only a single mirror to be angularly positioned over the screen to project video images to viewers. An optical system is positioned b... | 09/27/2005 |
| 6903871 | Reconfigurable surface A three-dimensional surface shape is produced from input numerical data. The shape of a sheet elastic material is determined by the positions of a matrix of control rods. The position of each of the rods is determined by a computer-controlled system. Each rod is fit... | 06/07/2005 |
| 6839168 | Screen A screen having a projection surface on which a light beam irradiated by an optical equipment such as a projector is projected to form a projection image has luminous energy sensors (4U, 4D, 4L, 4R) and an attitude controller (70) ... | 01/04/2005 |
| 6674415 | Image display device Three lines' worth of an image are displayed on a columnar display unit 11 comprising a plurality (for example, three) of one-dimensional display devices; this image light beam is made incident on perpendicular deflection means 14, and using the perpendic... | 01/06/2004 |
| 6554430 | Volumetric three-dimensional display system The invention features a volumetric display system including an optical relay, a motor, a support structure coupled to the motor, a projection screen disposed on the support structure, and a projection optic. During operation, the projection optic receive... | 04/29/2003 |
| 6554431 | Method and apparatus for image projection, and apparatus controlling image projection An image projection apparatus is provided. The image projection apparatus includes a camera which acts as an image pickup device. The camera detects the position of curved surface which serves as a target for displaying projected image. Thus, an image can... | 04/29/2003 |
| 6347011 | Projection screen with movable shutter A projection screen for displaying projected images with a movable shutter that can be positioned and opened at any location within a large rectangular area of the surface of the projection screen. Physical objects and light signals may pass through the o... | 02/12/2002 |
| 6304377 | Wall and/or projection board A wall and/or projection board which can be used on both sides and can be engaged in a horizontal wall rail. At least a first engagement element is connected to the wall-board element via a vertical pivot-spindle connection. The vertical pivot-spindle con... | 10/16/2001 |
| 6111693 | Projection screen with movable shutter A projection screen for displaying projected images with a movable shutter that can be positioned and opened at any location within a large rectangular area of the surface of the projection screen. Physical objects and light signals may pass through the o... | 08/29/2000 |
| 6095652 | Projection system A projection system incorporating a screen (2, 14) with a substantially achromatic response in a direction substantially perpendicular to the plane of the screen. The screen (2, 14) comprises a diffraction grating (4), means (5) for attenuating zero order... | 08/01/2000 |
| 6092900 | Method and apparatus for reducing the formation of spots in laser projection A projection surface includes scattering microparticles that are in constant motion in relation to each other and to a source of laser radiation in a laser projection system. The microparticles reduce the formation of spots that normally occur when viewin... | 07/25/2000 |
| 6072545 | Video image rotating apparatus An image rotating apparatus presents a projected video image upon a rear projection screen that is rotated extremely rapidly about a vertical axis which exactly bisects the picture in the vertical plane. The rotational rate is such that an entire audience... | 06/06/2000 |
| 5159362 | Dimensional transformation system and related method of creating visual effects A dimensional transformation apparatus and related method for creating visual effects for use in live and prerecorded entertainment. The system engages an elastic projection screen with a three-dimensional object that corresponds to visual effects to be p... | 10/27/1992 |
| 5114224 | Automatic follow-up projecting system A light for an infrared ray) emitting member or a reflective (or an infrared ray reflective) medium is mounted at a predetermined position on an object upon which an image is projected. The light emitting member or the reflective medium is acquired in the... | 05/19/1992 |
| 5082350 | Real time three dimensional display system for displaying images in three dimensions which are projected onto a screen in two dimensions A three dimensional display system is shown wherein a scanned light beam is displayed upon a continuously rotating display member rotating about a fixed axis. A first embodiment provides that the display member be comprised of a pair of intersecting displ... | 01/21/1992 |
| 5080481 | Screen simulator window A screen simulator window having a window aperture through which a scene may be viewed with a partial screen arranged immediately behind the window. The screen consists of alternately opaque screen portions and transparent screen portions. The adjacent sc... | 01/14/1992 |
| 4979026 | Polarized light 360 degree viewing system A viewing system is provided for presenting a real image in space that is rotated extremely rapidly so that an entire audience, regardless of an individual's position about the viewing system, can view the same image substantially simultaneously and conti... | 12/18/1990 |
