|
Praxinoscope
The praxinoscope was an animation device, the successor to the zoetrope. It was invented in France in 1877 by Charles-Émile Reynaud. Like the zoetrope, it used a strip of pictures placed around the inner surface of a spinning cylinder. The praxinoscope improved on the zoetrope by replacing its narrow viewing slits with an inner circle of mirrors, placed so that the reflections of the pictures appeared more or less stationary in position as the wheel turned. Someone looking in the mirrors would therefore see a rapid succession of images producing the illusion of motion, with a brighter and less distorted picture than the zoetrope offered. Variations Reynaud introduced the Praxinoscope-Théâtre in 1879. This was basically the same device, but it was hidden inside a box to show only the moving figures within added theatrical scenery. When the set was assembled inside the unfolded box, the viewer looked through a rectangular slot in the front, onto a plate with a transparent m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoetrope
A zoetrope is one of several pre-film animation devices that produce the illusion of motion by displaying a sequence of drawings or photographs showing progressive phases of that motion. It was basically a cylindrical variation of the phénakisticope, suggested almost immediately after the stroboscopic discs were introduced in 1833. The definitive version, with easily replaceable picture strips, was introduced as a toy by Milton Bradley in 1866 and became very successful. Etymology The name ''zoetrope'' was composed from the Greek root words ζωή ''zoe'', "life" and τρόπος ''tropos'', "turning" as a translation of "wheel of life". The term was coined by inventor William E. Lincoln. Technology The zoetrope consists of a cylinder with cuts vertically in the sides. On the inner surface of the cylinder is a band with images from a set of sequenced pictures. As the cylinder spins, the user looks through the cuts at the pictures across. The scanning of the slits keeps the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoetrope
A zoetrope is one of several pre-film animation devices that produce the illusion of motion by displaying a sequence of drawings or photographs showing progressive phases of that motion. It was basically a cylindrical variation of the phénakisticope, suggested almost immediately after the stroboscopic discs were introduced in 1833. The definitive version, with easily replaceable picture strips, was introduced as a toy by Milton Bradley in 1866 and became very successful. Etymology The name ''zoetrope'' was composed from the Greek root words ζωή ''zoe'', "life" and τρόπος ''tropos'', "turning" as a translation of "wheel of life". The term was coined by inventor William E. Lincoln. Technology The zoetrope consists of a cylinder with cuts vertically in the sides. On the inner surface of the cylinder is a band with images from a set of sequenced pictures. As the cylinder spins, the user looks through the cuts at the pictures across. The scanning of the slits keeps the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Théâtre Optique
The Théâtre Optique (Optical Theatre) is an animated moving picture system invented by Charles-Émile Reynaud, Émile Reynaud and patented in 1888. From 28 October 1892 to March 1900 Reynaud gave over 12,800 shows to a total of over 500,000 visitors at the Musée Grévin in Paris. His ''Pantomimes Lumineuses'' series of animated films include ''Pauvre Pierrot'' and ''Autour d'une cabine''. Reynaud's Théâtre Optique predated Auguste and Louis Lumière's first commercial, public screening of the cinematograph on 28 December 1895, which has long been seen as the birth of film. Technology The realized films had 300 to 700 transparent pictures of successive phases of moving figures with black backgrounds. The pictures were hand painted by Reynaud in aniline inks directly on 6 x 6 cm gelatin plates. The plates were coated with shellac and framed in a cardboard strip of which the sides were clad in fabric bands attached with split pins. The horizontal film strip could be up to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrotachyscope
The Elektrischen Schnellseher (literally "Electrical Quick-Viewer") or Electrotachyscope was an early motion picture system developed by chronophotographer Ottomar Anschütz between 1886 and 1894. He made at least seven different versions of the machine, including a projector, a peep-box viewer and several versions with illuminated glass photographs on a rotating wheel viewed on a 12.5 cm wide milk-glass screen by up to seven people at the same time. History Before working on chronophotography and motion pictures, Anschütz had already received much acclaim for his instantaneous pictures of flying storks in 1884. In 1885, Anschütz made his first chronophotographs of horses, sponsored by the Prussian minister of Culture. Initially, he used 12 cameras, later on 24. The quality of his pictures was generally regarded to be much higher than that of pioneer Eadweard Muybridge's chronophotographic series. He continued with studies of horses in motion at the Königlichen Militärre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audiovisual Introductions In 1877
Audiovisual (AV) is electronic media possessing both a sound and a visual component, such as slide-tape presentations, films, television programs, corporate conferencing, church services, and live theater productions. Audiovisual service providers frequently offer web streaming, video conferencing, and live broadcast services. Computer-based audiovisual equipment is often used in education, with many schools and universities installing projection equipment and using interactive whiteboard technology. Components Aside from equipment installation, two significant elements of audiovisual are wiring and system control. If either of these components are faulty or missing, the system may not demonstrate optimal performance. Wiring is a skill that not only requires proper cable rating selection based on a number of factors, including distance to the main rack, frequency and fire codes, but wires should also be out of sight, behind the walls and in the ceiling, when possible. Sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoopraxiscope
The zoopraxiscope (initially named ''zoographiscope'' and ''zoogyroscope'') is an early device for displaying moving images and is considered an important predecessor of the movie projector. It was conceived by photographic pioneer Eadweard Muybridge in 1879 (and built for him by January 1880 to project his famous chronophotographic pictures in motion and thus prove that these were authentic). Muybridge used the projector in his public lectures from 1880 to 1895. The projector used 16" glass disks onto which Muybridge had an unidentified artist paint the sequences as silhouettes. This technique eliminated the backgrounds and enabled the creation of fanciful combinations and additional imaginary elements. Only one disk used photographic images, of a horse skeleton posed in different positions. A later series of 12″ discs, made in 1892–1894, used outlines drawn by Erwin F. Faber that were printed onto the discs photographically, then colored by hand. These colored discs were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strobe Light
A strobe light or stroboscopic lamp, commonly called a strobe, is a device used to produce regular flashes of light. It is one of a number of devices that can be used as a stroboscope. The word originated from the Ancient Greek ('), meaning "act of whirling". A typical commercial strobe light has a flash energy in the region of 10 to 150 joules, and discharge times as short as a few milliseconds, often resulting in a flash power of several kilowatts. Larger strobe lights can be used in “continuous” mode, producing extremely intense illumination. The light source is commonly a xenon flash lamp, or ''flashtube'', which has a complex spectrum and a color temperature of approximately 5,600 kelvins. To obtain colored light, colored gels may be used. Scientific explanation of flashtubes Strobe lights usually use flashtubes with energy supplied from a capacitor, an energy storage device much like a battery, but capable of charging and releasing energy much faster. In a ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Film
The history of film chronicles the development of a visual art form created using film technologies that began in the late 19th century. The advent of film as an artistic medium is not clearly defined. However, the commercial, public screening of ten of the Lumière brothers' short films in Paris on 28 December 1895 can be regarded as the breakthrough of projected cinematographic motion pictures. There had been earlier cinematographic results and screenings by others like the Skladanowsky brothers, who used their self-made Bioscop to display the first moving picture show to a paying audience on 1 November 1895 in Berlin, but they lacked neither the quality, financial backing, stamina, or the luck to find the momentum that propelled the cinématographe Lumière into worldwide success. Those earliest films were in black and white, under a minute long, without recorded sound and consisted of a single shot from a steady camera. The first decade of motion pictures saw film mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
