33 results about "Slide projector" patented technology

Specially designed articles of furniture for use in conference and office settings which include a plurality of uniquely configured supporting legs, one or more article support structures disposed centrally of the supporting legs and a novel connector member for interconnecting the support structures of the legs. The connector member also enables the quick and easy interconnection of the polygonal panels that make up certain of the article support structures of the apparatus. The articles of furniture can be used to support and transport a wide variety of devices such as audio and video equipment, slide projectors, overhead projectors and the like.

A lamp and projection device for a single slide or digital imaging means comprising six substantially identical faces assembled to form a cube body which supports an illumination system consisting of a light-emitting unit, a electrical transformer unit and switches, a plurality of reflecting mirrors and at least one condensing lens, and a slide or digital light engine. Said overall cube body having a hinged face at the top supporting a reflecting mirror on the inside surface which can be positioned at any angle to allow projecting an image onto a ceiling or onto an adjacent surface, with a micro-switch acting to switch on the device when opened. Said lens being adjustable by means of an external button to enable focusing. The overall faces being formed from a semi-translucent material to enable soft illumination. Said overall device being implemented as a single slide projector/decorative lamp, digital photo projector or video projector.

The invention discloses a vibration control device and method for flexible hinged plates based on binocular vision measurement. The device comprises a flexible hinged plate body, a vibration detection part, a drive control part, a signal processing module and a computer, wherein the flexible hinged plate body is composed of two flexible plates made of same material through a hinge together; the vibration detection part comprises a plurality of acceleration sensors, two industrial cameras and a slide projector; the drive control part comprises a plurality of piezoelectric plate drivers; the vibration detection part is used for detecting the vibration signal of the flexible hinged plate body, the vibration signal is input into the computer through the signal processing module, the computer is used for operating a corresponding active control algorithm, and the vibration signal is output to the drive control part through the signal processing module so as to restrict the vibration of the flexible hinged plate body. According to the vibration control device, complete non-contact measurement for hinged plate vibration is realized by adopting a method in combination with slide projector projection mark points and camera detection, so that the measuring result is more accurate.

A projector capable of instantly sharing the images of the displayed slides, in addition to having the components and functions of a general projector, a signal processing device (101) and a network device (102) are also provided, and the signal processing device (101) converts input The video signal is converted into a video data stream, and the video data stream is provided to each network terminal (4) for extraction in a real-time manner through a network device (102). In some large-scale conferences, due to the large conference venue and the large number of people, not every position can clearly see the projector screen (2). With the projector (1) of the present invention, the conference participants can connect to the Internet as long as they carry them. The network terminal (4), such as a notebook computer, can extract the video data stream from the projector (1) through its notebook computer, instantly see the same image content as the screen (2), or download the lecturer's slideshow file , and the video data stream can be stored in the computer for easy viewing in the future.

A portable slide projector is provided for the portable projection of standard film slides. The projector has a housing of an overall size, shape and function of a flashlight. A rechargeable battery pack provides power to a lamp as controlled through a switch. A standard film slide of the common variety, is inserted into one of a series of aligned projection slots. The projection slots are supported by a linear carousel mechanism advances the aligned film slides into position to be projected.

The present invention discloses a multi-flexible plate vibration detection device and method. The device comprises 2N+1 flexible plates, a linear travel mechanism, a vibration detection mechanism anda control module, one of the flexible plates is located at the central position, the other flexible plates are symmetrically arranged at two sides of the one of the flexible plates, the flexible plates are perpendicular to a horizontal plane and hinged together through a hinge to form a flexible hinge plate, and the flexible hinge plate is arranged on the linear travel mechanism; the vibration detection mechanism comprises two slide projectors, two sets of binocular vision systems and 2N acceleration sensors, each slide projector is configured to project mark points on the flexible hinge plate, each set of the binocular vision systems is configured to detect the mark point area of the corresponding slide projector on the flexible hinge plate, and each acceleration sensor is arranged on thecorresponding flexible plate. The multi-flexible plate vibration detection device and method can reflect the global features of the flexible hinge plate and provide a condition for the active vibration control based on the multiple sensors.

The invention discloses the structure and design method of a high-definition 4D raster picture, wherein a novel picture showing device can be provided by combining rectangular gridding, laser typesetting and outputting, colour board developing and orthogonal grating technologies. Clear, lucid, large-size, and non-dazzling stereoscopic slide projector images and stereoscopic video images can be represented by the movement or relative movement of a horizontal raster. The stereoscopic images or stereoscopic advertisements showed by the stereoscopic slide projector have great stereoscopic sense, definition and viewing comfort; the stereoscopic video can show several hundreds of continuously moving stereoscopic images with contents and plots.

The invention relates to an improved slide projector with multiple projection sections, which includes at least two lighting sources controlled by an IC therein. The projector has a head with multiple projection sections on its lens and a slot for receiving a slide, which is provided with multiple drawings relating to a lighting source. The slide projector can provide an action projection shows when the lighting sources are lightened in series that obtains a utilized effect.

The present invention relates to a film picture synthe synthesis shooting method and its equipment. Said method is as follows: making the classifical picture of running film into filmslide, using slide projector to project said filmslide onto the screen connected with ground where the people can stand up, so that when the audience watches his-self enjoyed picture, he can stand on said screen connected with ground, a synthetic photograph of "he-seft appears in the film picture" can be shot by camera. Said equipment includes film picture filmslide, screen connected with ground, slide projector,projection less, half-transmitting half-reflecting lens, camera and illumination light.

The present invention relates to a slides projector device for books, comprising: a) an optical unit that includes an array of light sources and a corresponding array of lenses, wherein each lens and its corresponding light source adapted to project a different image located on a corresponding elongated slide located between said arrays of light sources and lenses, wherein said optical unit is adapted to be located on the upper side of a book; and b) an operation unit that includes an array of switches each of which adapted to activate a corresponding light source in said array of light sources, wherein the array of switches is adapted to be located on an upright side of the book that is perpendicular to its upper side and parallel to the hinge side of said book.

A method for obtaining the effect of animation or movie by the tunnel in which car is running features that the pictures or slide projectors are fixed to the side wall of said tunnel at the intervalsthat the passenger can watch 24-40 pictures per second and the passenger on the car can enjoy the animation or movie from said side wall of tunnel or the window curtain of car.

The invention discloses a numerically controlled mechanical motion system, comprising a film changing mechanism, a focusing mechanism, a transmission mechanism, and a transmission wheel; the focusing mechanism is arranged on the base of the numerically controlled mechanical transmission mechanism of the slide projector; The transmission block that pushes the mechanism to drive and contact; the focusing mechanism is installed on the upper part of the worm; the motor and the transmission wheel are coaxial; the disc changing mechanism and the friction wheel are connected through a drive shaft; A mounting groove is provided on the mechanism; the piston rod is arranged inside the focusing mechanism; a dust-proof ring is arranged on the right side of the transmission wheel and the lens barrel. The invention has the advantages of simple structure, reasonable design, long service life and low cost, and can satisfy users to display high-quality documents and videos conveniently and quickly.

The invention discloses a convenient multimedia interactive teaching device. The device is characterized by comprising USB slots, USB apple plugs, foot pins, a heat radiation device, a data line, a projector, a dust cover, a connector, an adjustment slot, a power switch and an Apple mobile phone, wherein the USB slots are three in total, are respectively mounted at a right end of the heat radiation device and are electrically connected with the projector, the USB apple plugs are horizontally embedded in and are mutually buckled with the USB slots, the foot pins are four in total, are horizontally attached to a bottom end of the projector and are welded together with the bottom end of the projector, the heat radiation device is horizontally mounted at a right end of the projector, and interference fit is employed. The device is advantaged in that the small volume, light weight and strong mobility are realized, the device is portable, the weight of the device is similar to a light notebook computer, the device is a substitute for traditional slide projectors and large and medium-sized projectors, a problem of a lecture angle of a teacher is overcome, and efficiency of the class is greatly improved.

This invention provides a system and method for projection of an image on any surface, employing a lightweight (typically polymer) housing that removably encloses a slide holder allowing for quick change of the slide. The housing includes a central channel, and allows for the mounting of a conventional camera-mounting-base lens at a front end and the insertion of a standard form factor photographic strobe/flash in the rear end. Light from the strobe passes down the channel, through the slide and is projected by the lens onto the surface. This housing is mountable on a standard tripod. The housing is straightforward to use, with the strobe effect being provided directly by the strobe unit. The system and method avoids the need of a camera body and desirably enables the user to employ one or more lenses, which are often less expensive and already available in a photographer's equipment inventory.

The present invention provides a remote automatic intelligent teaching display working method. The method comprises the steps of: S1, sending a working instruction to a slide projector through an intelligent terminal, and starting a projection lamp through the slide projector; S2, after displaying a lantern slide module of completing a many-sided snap ring, picking the many-sided snap ring; and S3, if the temperature, detected by a temperature sensor, at the internal portion of a slide projector cover body is too high, starting a first fan and a second fan for working. The remote automatic intelligent teaching display working method prevents the slide projector from being burnt, and improves the user experience satisfaction.

The invention relates to the field of table lamps, and discloses a multifunctional intelligent table lamp which comprises a lamp assembly and a slide projector assembly, the lamp assembly comprises a base, a supporting rod located in the vertical direction is fixedly connected to the top end of the base, a lamp shell is arranged on one side of the supporting rod, and a lighting lamp set is installed in the lamp shell; a cantilever mechanism used for adjusting the height of the lamp shell is arranged between the lamp shell and the supporting rod, and an illumination adjusting key is installed on the base. The slide projection assembly comprises an LCD screen and a slide lens, the LCD screen is installed in the lamp shell and located above the illuminating lamp set, the slide lens is installed at the bottom end of the lamp shell, a slide light source installed in the lamp shell is arranged above the LCD screen, and a slide adjusting key is installed on the base. The problems such as illumination, slide show, projection and the like which can be solved by many devices are solved only through one table lamp, additional devices are not needed, the desktop area of a user is saved, meanwhile, dependence of the user on an electronic screen can be reduced, and health and eye protection are achieved.

The invention discloses a slide projector comprising an enclosed cavity. The enclosed cavity is provided with an imaging aperture. A intense light source and a fan are arranged inside the enclosed cavity. The slide projector is characterized in that: A reflecting mirror (4) is arranged between an inner wall of a side, close to the imaging aperture (5), of the enclosed cavity (1) and the intense light source (3). The inner wall of the other side of the enclosed cavity (1) is provided with a material rack (8). Materials (2) are movably installed on the material rack (8). According to the invention, any printing material such photos, newspapers, pictures and manuscripts can be used as the materials. Through regarding optical principles as bases, problems of limitations and high costs of old-fashioned slide projectors are overcome. The slide projector of the invention overcomes limitations of films of the old-fashioned slide projectors, and is a convenient, practical, and reliable demonstration tool.