| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 353034000 | Plural projection paths with single light source | 15 |
| 20090180080 | Intra-Scene Dynamic Range Increase by Use of Programmed Multi-Step Filter - In one embodiment, a system is provided. The system includes a housing. The system also includes a light source coupled to the housing. The system further includes a light transmission modulating element coupled to the housing and arranged to receive light from the light source. The system also includes an image modulating subsystem arranged to receive light form the light transmission modulating element and coupled to the housing. The system further includes Output focusing optics arranged to receive light from the image modulating subsystem and coupled to the housing. | 07-16-2009 |
| 20090303445 | PROJECTION IMAGE DISPLAY DEVICE HAVING TWO MODULATION STAGES, INCLUDING ONE APERATURE MODULATION STAGE - Method for illuminating the surface of an object by using a source beam, in which:
| 12-10-2009 |
| 20100053563 | DIGITAL LIGHT PROCESSING PROJECTOR - A DLP projector includes a light source generating white light beams, a color wheel separating the white light beams into three colored light beams, an integration rod rendering the colored light beams uniform, a projection lens, a DMD, a light-shade and a light-absorbing member. When a light beam on a first path is in use, a micro mirror of the DMD reflects the light beam on the first path to follow a second path towards the projection lens. Otherwise, the micro mirror reflects the light beam on the first path to follow a third, fourth and fifth path out of the projection lens. The light-shade is positioned in a light path of the light beam out of the projection lens. The light-absorbing member is under the light-shade and absorbs the light beam on the fifth path, the light beam on a sixth and a seventh path reflected by the light-shade. | 03-04-2010 |
| 20100128228 | PROJECTOR AND PROJECTOR SYSTEM - A projector that projects an image on a screen, includes: plural image generating units that generate an image lights representing the image; a main body housing that houses the plural image generating units; and plural projection optical units that are provided in the main body housing to respectively correspond to the plural image generating units and project the image lights generated by the image generating units on the screen. | 05-27-2010 |
| 20100141897 | IMAGE DISPLAY DEVICE - An image display apparatus includes an LD for emitting and modulating visible light, an optical scanning device for two-dimensionally scanning the light from the Ld on a screen in synchronism with the LD, an imaging device for picturizing an image of the image displayed on the screen, and an image processor for judging presence or absence of the pointing element such as a finger or fingers which is/are used to point out an optional position on the image based on temporal change of the image picturized by the imaging device. Even when the finger or fingers of a person is/are used as the pointing element, it is possible to judge the presence or absence of the pointing out of the image by the finger or fingers. Thereby, a number of components can be reduced. In addition, in comparison with an image display apparatus that emits invisible light detects a position of a pointing element corresponding to a photoreception timing of the invisible light reflected by the pointing element, a complex detection circuit having a high time-resolution becomes unnecessary, and it enables to simplify the configuration and to reduce manufacturing cost. | 06-10-2010 |
| 20110116052 | ILLUMINATION DEVICE AND PROJECTOR - An illumination device includes: a light source which has an emission surface forming area where a plurality of emission surfaces are disposed; a plurality of converging lenses disposed in correspondence with the plural emission surfaces to converge emission lights emitted from the emission surfaces; a first fly-eye lens which divides lights converged by the plural converging lenses into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; and a condenser lens which stacks the plural partial lights converged by the second fly-eye lens on an illumination receiving area, wherein the plural converging lenses stack the emission lights on the first fly-eye lens. | 05-19-2011 |
| 20110116053 | ILLUMINATION DEVICE AND PROJECTOR - An illumination device includes: a light source which emits a plurality of emission lights; a first condenser lens which stacks the plural emission lights emitted from the light source; a first fly-eye lens which divides lights stacked by the first condenser lens into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; and a second condenser lens which stacks the plural partial lights converged by the second fly-eye lens, wherein the first condenser lens stacks the plural emission lights emitted from the light source on the first fly-eye lens, and the second fly-eye lens stacks the plural partial lights on an illumination receiving area. | 05-19-2011 |
| 20110188003 | ILLUMINATION DEVICE AND PROJECTION-TYPE IMAGE DISPLAY DEVICE - A light source having (a) a light emitter that emits a light beam along a first axis, the light beam having a highest degree of anisotropic coherency in a second axis perpendicular to the first axis; and (b) a light multiplexer positioned optically downstream of the light emitter, the multiplexer having an axis of multiplexing perpendicular to the first axis, the second axis and the axis of multiplexing being oriented at an angle with respect to each other that is other than 0, 90, 180 and 270 degrees. | 08-04-2011 |
| 20120008099 | DEVICE AND SYSTEM FOR PROJECTING IMAGES ONTO A SCREEN - A device and system for projecting images onto a screen, wherein the device and devices which are included in the system have associated therewith components comprising a light source, a cooling means for the light source, at least one of a reflector adapted to focus light from the light source and a focusing lens that receives light from the light source, a dynamic colour filter that receives light from at least one of the light source/reflector and the focusing lens, a light-shaping lens or rod that transmits light which has passed through the filter, an image-forming element that receives light from the light-shaping lens or rod, and a lens for projecting onto the screen images received from the image-forming element. At least the light source and the cooling means are placed in a first component housing separate from the other components that are located in at least one further component housing, and the connection between the component housings is effected by at least one liquid light guide. The system is characterised in that at least said light source and cooling means are installed in a plurality of first component housings or in one first component housing common to the projector devices, that other components associated with each projector device are arranged in at least one respective further component housing separate from said respective or common first component housing, and that respective liquid light guides connect said further component housings and said respective component housings or the common first component housing. The screen and at least one of said further component housings are placed in a projection room separated from rooms in which the other component housings are placed, thereby obtaining a substantial noise reduction in the projection room. | 01-12-2012 |
| 20130215395 | WIDE-ANGLE IMAGING LENS AND LOW-PROFILE PROJECTION LIGHT ENGINE USING THE SAME - Wide-angle imaging lens arrangements and methods are described for use with an image projector system including a display. A plurality of no more than six lenses can be arranged to receive an object image that emits from the display to propagate through the plurality of lenses to produce a high-quality projected image on a screen. The image projector system has a low f-number, low height profile and high resolution. | 08-22-2013 |
| 20140118701 | Projection Apparatus - A projection apparatus for projecting a first image and a second image is disclosed. The projection apparatus has a casing, a light source module providing an illumination beam, a light valve device, a first prism, a second prism, a third prism, a fourth prism, a first projection lens, and a second projection lens. The illumination beam enters the first prism, the second prism, the third prism, the fourth prism, and the light valve device. The illumination beam is reflected and converted into a first image beam and a second image beam. The first image beam enters the first prism and is totally reflected to the first projection lens to form the first image. The second image beam enters the third prism and is totally reflected to the second projection lens to form the second image. | 05-01-2014 |
| 20140198302 | IMAGE REARRANGING LENS AND PROJECTION APPARATUS - An image rearranging lens and a projection apparatus are provided. The image rearranging lens is used to rearrange a plurality of sub images provided by an image source and arranged along an arranging direction. The image rearranging lens includes a plurality of lens groups arranged along the arranging direction. Each of the sub images is imaged on a corresponding lens group. Optical axes of the lens groups are not aligned to each other along the arranging direction. The optical axis of each of the lens groups and the optical axis of the neighboring lens groups have an offset along a direction perpendicular to the arranging direction. | 07-17-2014 |
| 20140211171 | PROJECTION APPARATUS - The invention provides a projection apparatus having an image source, a projection lens, and a beam-splitting module. The image source provides an image beam, and the image beam includes a first sub image beam and at least one second sub image beam. The projection lens is disposed on a transmission path of the image beam. | 07-31-2014 |
| 20160062131 | PROJECTION DEVICE AND PROJECTION-TYPE VIDEO DISPLAY DEVICE - Provided are a projection device and a projection-type video display device capable of displaying a plurality of videos, allowing speckles to be inconspicuous, and miniaturizing an optical system. A projection device includes an optical element including light diffusion elements capable of diffusing light, an irradiation device configured to irradiate the optical element with illumination light beams, each illumination light beam scanning the corresponding light diffusion element, spatial light modulators, each spatial light modulator being illuminated with illumination light beam which is incident from the irradiation device to each light diffusion element to be diffused, and projection optical systems, each projection optical system projecting modulation image obtained on each spatial light modulator on corresponding screen. The illumination light beam, which is incident to each position of each light diffusion element to be diffused, overlappedly illuminates on corresponding spatial light modulator. | 03-03-2016 |
| 20190146320 | APERTURE SHARING FOR HIGHLIGHT PROJECTION | 05-16-2019 |
