Patent application number | Description | Published |
20080204870 | Bag type portable screen device - A bag type portable screen device is disclosed. A screen is coupled with a rotary rod with ½ to ⅓ the size of a conventional screen to complete a screen case. The screen case is coupled with one of upper and lower sides of a bag, and has rings to fix the screen, when the rotary rod rotates to open and use the screen. The screen is released from the rings to carry. The screen may be a fixed type reflective screen whose end is fixed to the bag. Since the bag accommodates a laptop computer, and a projector, the bag type portable screen is convenient to carry, install, and use. | 08-28-2008 |
20080239172 | Table type bi-directional imaging apparatus - Disclosed is a table type bi-directional imaging apparatus, in which left and right viewers located at left and right sides simultaneously view the same picture or different pictures. The table type bi-directional imaging apparatus includes a table case having a table shape; a transparent window formed through the center of the upper surface of the table case; and left and right projectors and left and right imaging plates, having a screen structure, bilaterally symmetrically installed at left and right sides of the inside of the table case. In the table type bi-directional imaging apparatus, left and right projection distances to project pictures on large-sized screens and left and right viewing distances to view clear pictures are provided within an occupation area of a single table. Further, the imaging apparatus has a table structure, and thus does not require the occupation area of a separate table, thereby minimizing an area for installing the imaging apparatus. | 10-02-2008 |
20080291537 | Floor projection screen and method for manufacturing the same - A floor projection screen to be installed in front of department stores, shops, shopping malls, and a method for manufacturing the same are disclosed. The floor projection screen is formed by overlapping a hard screen material, which is obtained by mixing white cement with a light diffuser such as glass beads, silica, etc. having a particle of 400 to 800 mesh, or by mixing plastic resin with white cement, calcium material, pigments, etc., and a soft material such as urethane, rubber, or non-woven fabrics, thereby achieving vivid imaging, an anti-skid function, and durability for friction. The floor projection screen is manufactured by stacking a screen material on a surface of a tape-shaped soft material and rolling and hardening the screen material to complete a screen having a centric ring pattern, or by stacking a screen material on a surface of a tape-shaped soft material, repeating the stacking step until a desired size of the screen is obtained, and hardening the resulting stack to achieve a screen surface having a particle size of 40 to 800 mesh. | 11-27-2008 |
20090027632 | Bag type presentation apparatus - A bag type presentation apparatus is disclosed. The apparatus includes a bag-shaped case body having an upper case and a lower case, a curved reflective screen having a focus, and a small projector. The reflective screen is mounted at an inner surface of the upper case and has a reflectance of 4 to 50%. The reflective screen is a curved or spherical reflective screen or a fresnel reflective screen, to straightly reflect a light projected from the small projector located at the focal position thereof, thereby preventing a hot spot and realizing a high screen brightness of 4 to 50 times that of a conventional screen. The projector uses a LED as a light source and has a weight and volume of a fourth that of a conventional projector. The projector is positioned at a focal position of the reflective screen based on the curvature of the reflective screen when in use, and is received in the bag-shaped body case when being carried. | 01-29-2009 |
20090219616 | Theater-type projection screen - A theater-type projection screen is disclosed, which is capable of achieving a theater-like stage structure with one projection screen, being implemented in a wall-mounting form or in a stand form. The theater-type projection screen comprises a screen frame formed in a dual structure including an outer frame and an inner frame which are separably connected to each other. The outer frame is made of various materials and in various designs, and structured as a theater stage having a predetermined space allowing movement of a stage curtain therein. The inner frame is equipped with a motor, a fixing shaft, a rotational shaft, and a static screen. According to this structure, the theater-type projection screen is capable of implementing a theatrical atmosphere when in use, and protecting a surface of the projection screen while showing an aesthetic design thereof when not in use. | 09-03-2009 |
20100073767 | TRANSMISSION SCREEN FOR STEREOSCOPIC IMAGES - A transmission type screen for stereoscopic images having a transmission layer includes an incident surface having a gloss surface, a transmission layer having a refractive index less than 1.55, a transmissivity more than 60%, and an imaging surface having surface particle sizes of 40 to 400 mesh that avoids a hot spot. The imaging surface is formed on the final surface through which images are transmitted, so that the components operate in an organic fashion with respect to each other. The polarization degree of stereoscopic images is maximized thereby increasing the three-dimensional effect and the transmissivity, and enables viewers to view images clearly several times better than with a conventional screen. | 03-25-2010 |
20110013276 | THREE DIMENSION LEAFLET FOR ADVERTISING - The present invention relates to a three dimension leaflet for advertising wherein lens plate is movable on a surface of three dimension image so that a several three dimension images are observed, comprising an advertising face on a front surface of the leaflet and a several three dimension image faces on a rear surface thereof wherein left and right images, a middle blocking plate and lens plate are provided on the three dimension image face, so that the leaflet is collapsible to form a thin configuration when it is carried, and focusing distances of the left and right lens are fixed stably by the middle blocking plate when it is used and further the three dimension image is observed obviously through external light. | 01-20-2011 |
20110156403 | SYMMETRICAL DUAL-STRUCTURED WIND POWER GENERATION SYSTEM - A wind power generation system using the Bernoulli principle, includes elongated tube, wind entry and exit openings on opposite ends of a main body of the tube, a central wind passing section of the tube having a smaller diameter than that of the wind entry and exit openings between the opposite ends, support struts spanning the wind entry and exit openings, and left and right power generators arranged centrally of the support struts, with the generators being rotated simultaneously on a single rotation shaft axle. Plural wind turbines are provided left-right symmetrically on the rotation shaft axle, and transverse rotation bearings are provided on the lower and upper part of the wind passing tube, so the tube can pivot into the wind via vanes, thereby doubly increasing power generation efficiency compared to the prior art. | 06-30-2011 |
20110216405 | TWO-WAY MIRROR SCREEN SYSTEM FOR ADVERTISEMENT - A two way mirror system usable for an advertisement device includes a half-mirror having a light transmission function and a reflection function. A logo plate in a shape of an engraving or pattern in relief or intaglio is provided on a front face thereof and a two way screen through which a rear projected image can be viewed from both a front and rear face is provided on a rear face thereof. A single advertising device thus provides a logo advertising using a logo plate and reflected outside light during the day and an image advertisement viewable outside during night time, with inside viewing with double the usual brightness of a reflecting screen. | 09-08-2011 |
20120008202 | REFLECTIVE PROJECTION SCREEN HAVING MULTIINCEDENT ANGLE - Embodiments of the invention relate to a reflective projection screen for image, and more particularly, to a shape and a fabrication method for a reflective projection screen for a projector having short focal length of short projection distance, and particularly to a reflective projection screen applicable to 2D and 3D. In particular, embodiments of the present invention relates to a reflective projection screen having multi-incident angle wherein every reflection surface is prepared per projection angle of projection image and incident angles are formed differently from each reflection surfaces so that the projection images from different angles are reflected into one direction. | 01-12-2012 |
20120079555 | SYSTEM FOR SCREEN DANCE STUDIO - A system for an exercise screen dance studio includes an image storage unit, an audio unit, a controller, a large mirror, a projector, a screen image unit, and a left-right image reversal unit for reversing left-right sides of an image. In addition, a screen image unit is provided either behind a trainee dancer with a large mirror being provided in front of the trainee or the screen image unit can be integrated with the large mirror. A large screen image unit and a projector for proving audio and image may be provided, wherein the large mirror is arranged in front of the trainee and the screen image unit is placed on a rear side thereof or inside the mirror so that the trainee can see simultaneously his/her reflected exercising image and the projected dance exercising image through the mirror in the same orientation with regard to left-right sides or as a reversed image. | 03-29-2012 |
20120099192 | WINDOW IMAGE PROJECTION SCREEN - A window image projection screen includes a transparent case, including a transparent front element and a transparent rear element. A thin inner space formed between the front and rear elements is filled with fine water drops produced by ultrasonic vibration of water in a reservoir to selectively crease a screen for a projected image. | 04-26-2012 |
20120133893 | 3D IMAGE CONVERTIBLE PROJECTION OPTICAL SYSTEM - A 3D image convertible projection system for viewing a 3D broadcasting and 3D DVD image, using a general projector that receives a left-eye image and a right-eye image for a 3D image in one frame and projects them toward a projection lens, wherein the left-eye image and the right-eye image in 2D form are magnified so that a vertical magnification rate is 0 and a horizontal magnification rate is 1.5-2.5 times. At the same time the left and right images are divided leftward and rightward through an optical system consisting of first and second curved surface mirrors, and then the images are secondly reflected and magnified to be projected toward a screen. The 3D image can then be viewed using polarization eyeglasses through image division, image horizontal magnification rate, and overlapping projection on a polarization separation screen. | 05-31-2012 |
20120188513 | 3D IMAGE CINEMA SYSTEM - Provided is a 3D image cinema system through which in one projection room one 3D image or 2D image is divided forward and rearward to be projected on a front screen and a rear screen which are provided in a front end and a rear end of the projection room, respectively. Further, a front direction chair and a rear direction chair having a different viewing direction are provided on a front step and a rear step between the projection room and the front and rear screens wherein the theater can be easily installed in a general building and the 3D and 2D image as 1.5-2 times wide as a prior image can be viewed. | 07-26-2012 |
20120224259 | PICTURE CHANGEABLE STREOSCOPIC POSTING APPARATUS - A picture changeable stereoscopic posting apparatus, comprising: a front case and a main body case formed as a frame, respectively; a lenticular plate mounted on the front case; a picture fixing device for fixing a 3D picture provided on a rear surface of the lenticular plate; a 3D picture which is printed on a separate printing paper and includes a left eye picture and a right eye picture which are fine-divided into a plurality of pictures and are arranged vertically in sequence to be combined as single picture; and a resilient plate which is made of elastic material such as sponge or urethane sheet and is provided inside the main body case wherein the front case is opened from the main body case for the 3D picture | 09-06-2012 |
20130050578 | AUDIO-VIDEO SYSTEM FOR SPORTS CAFES - An audio-video system for a sports café that is configured to allow multiple people to simultaneously view multiple images and listen to audio corresponding to selected images including: a large screen; a setup box for receiving a plurality of broadcasting channels; an image synthesizer for synthesizing the plural image channels into one image; an image selector for selecting and outputing one image selected from the plural image channels or synthesized image; a projector for projecting the image from the image selector; an audio selector for selecting one audio channel among the plural audio channels output corresponding to the selected image for output of a speaker; an audio amplification unit for amplifying the audio selected by the audio selector; and an audio collecting unit for controlling the directional output of the audio from the speaker. | 02-28-2013 |
20130068950 | 3D EYEGLASS - Provided is a 3D eyeglass of a shutter type. In the 3D eyeglass, a case in which infrared ray shielding surface is formed is provided on a front surface of a 3D eyeglass sensor, and a telephoto lens for telescoping and collecting light is provided on an inner-front surface of the case wherein a diameter of the telephoto lens is 1.5 times great as or greater than a diameter of the sensor to increase a collecting capability of infrared ray to 1.5 times as a prior art, and a focal point distance of the telephoto lens is 2-40 mm and is movable for the sensor to be focused on a screen at remote distance. Accordingly, infrared ray interference from an external light can be avoided and 3D signal on a specific picture can be amplified and sensed, and thereby viewing a clear 3D images. | 03-21-2013 |
20140320821 | 3D IMAGE CINEMA SYSTEM - A 3D image cinema system having at least one projection room for viewing 3D images or 2D images is divided into forward and rearward viewing directions for the projection of an image on a front screen and a rear screen which are provided in a front end and a rear end of the projection room, respectively. Further, a front direction chair and a rear direction chair having a different viewing direction are provided on a front step and a rear step between the projection room and the front and rear screens where the theater can be easily installed in a general building and the 3D and 2D image has as much as 1.5-2 times wider viewing as a prior image. | 10-30-2014 |