Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A single channel stereoscopic monitor receives a stereoscopic TV image and an Internet stereoscopic image. Left and right eye images are simultaneously received to display the stereoscopic image by a monitor or a TV through a single channel, are polarized by polarizing plates having left and right deflection angles symmetrical to each other, and are automatically combined into a single stereoscopic image by a reflecting mirror and a half mirror, so that a viewer can watch the stereoscopic image.

Abstract: There are provided a printing apparatus and a method for processing real-time commands using the same. The printing apparatus is able to be stably operated without any mechanical troubles such as degraded performance of the printing apparatus, which are caused when real-time commands are analyzed and processed on a receive interrupt routine, by detecting real-time commands from data transmitted from the host computer, separately storing the detected real-time commands in a real-time command buffer and processing the stored real-time commands in preference to the other data.

Abstract: 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 5 to be replaced frequently.

Abstract: A table type large-size imaging apparatus in which an imaging screen and a reflector are installed in front and rear end positions of a table type case with an inclination angle that extends in directions downwardly away from the upper surface. The reflector and imaging screen are arranged to then reflect an image in a direction parallel to an upper surface of the table type case to allow a viewer to watch an image formed on the screen through a transparent window provided at a top of the table type case. The viewer's watching distance and the image projection distance are overlapped within the table type case, to achieve a maximum screen size with a minimum table size. With this configuration, a viewer who is located close to the imaging apparatus in the form of a table is able to appreciate the vivid large-size image with a downward viewing angle.

Abstract: Provided are an energy-saving apparatus using computer user information and an energy-saving method using same.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A printing apparatus in which a general command is converted to a real-time command depending on the needs, allowing fast status analysis and error recovery with fewer number of control commands without inconveniencing the user, a control method therefor, and a data processing apparatus using the printing apparatus. In the printing apparatus or the data processing apparatus including the same which is operated by transmission of command data and print data from a host computer, general data usually processed in order is converted to a real-time command using a real-time command identifier. The printing apparatus receives the data with the real-time command identifier and processes the command or print data designated by the real-time command identifier. The apparatus and method allow using a fewer number of commands to execute various controls.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An educational stereo microscopic image display apparatus includes a bag-shaped main box, a planar screen panel which is provided at a front portion of the main box and has a size of 20 inches to 40 inches, and a microscopic image optical system which is provided at a rear portion of the main box and has an objective lens and an image conversion device which converts an optical signal into an electric signal. An image of an object to be inspected is magnified by the microscopic image optical system, and the magnified image is displayed on the large-scale planar screen panel. Accordingly, a teacher and a large number of students (up to about one hundred) can conveniently observe the image of the object to be inspected at the same time.