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Megalethoscope
The megalethoscope is a larger version (''mega''-) of the alethoscope, (Italian: ''alethoscopio'', from the Greek “true”, “exact” and “vision”) which it largely superseded, and both are instruments for viewing single photographs with a Lens (optics), lens to enlarge and to create some illusion of Three-dimensional space, three-dimensionality. They were used to view photographic Albumen print, albumen prints that were Hand-colouring of photographs, coloured, perforated and mounted on a curved frame. Night effects were achieved when viewing pictures in transmitted light from a fitted oil or kerosine lamp and a daytime version of the same scene was seen when lit by the reflected light from two side mirrors. They are sophisticated versions of the Raree show, peep show, and were designed by Carlo Ponti (photographer), Carlo Ponti of Venice before 1862. Lke the similar graphoscope which descends from the eighteenth century zograscope predating photography'','' these devices we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalethoscope Description
The megalethoscope is a larger version (''mega''-) of the alethoscope, (Italian: ''alethoscopio'', from the Greek “true”, “exact” and “vision”) which it largely superseded, and both are instruments for viewing single photographs with a Lens (optics), lens to enlarge and to create some illusion of Three-dimensional space, three-dimensionality. They were used to view photographic Albumen print, albumen prints that were Hand-colouring of photographs, coloured, perforated and mounted on a curved frame. Night effects were achieved when viewing pictures in transmitted light from a fitted oil or kerosine lamp and a daytime version of the same scene was seen when lit by the reflected light from two side mirrors. They are sophisticated versions of the Raree show, peep show, and were designed by Carlo Ponti (photographer), Carlo Ponti of Venice before 1862. Lke the similar graphoscope which descends from the eighteenth century zograscope predating photography'','' these devices we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalethoscope
The megalethoscope is a larger version (''mega''-) of the alethoscope, (Italian: ''alethoscopio'', from the Greek “true”, “exact” and “vision”) which it largely superseded, and both are instruments for viewing single photographs with a Lens (optics), lens to enlarge and to create some illusion of Three-dimensional space, three-dimensionality. They were used to view photographic Albumen print, albumen prints that were Hand-colouring of photographs, coloured, perforated and mounted on a curved frame. Night effects were achieved when viewing pictures in transmitted light from a fitted oil or kerosine lamp and a daytime version of the same scene was seen when lit by the reflected light from two side mirrors. They are sophisticated versions of the Raree show, peep show, and were designed by Carlo Ponti (photographer), Carlo Ponti of Venice before 1862. Lke the similar graphoscope which descends from the eighteenth century zograscope predating photography'','' these devices we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlo Ponti (photographer)
Carlo Ponti (–1893) was a Swiss-born optician and photographer active in Venice from about 1848.The History of the Discovery of CinematographyChapter Ten: 1860-1869/ref> Early life Carlo Ponti was born in Sagno in Canton Ticino, Switzerland between 1822 and 1824. He moved as an adult to Paris to train for about five years in the workshop of optician Robert-Aglaé Cauchoix,before settling in Venice after 1848. Career Ponti opened an optician’s shop in Piazza San Marco 52, near the Caffè Florian, producing high quality instruments, for which he had sole rights, for astronomy and physics and photographic lenses, especially those used for panoramas, as well as selling products of other companies. On 30 May 1854 he was awarded a silver medal for his photographic equipment at the Esposizione Industriale Veneta. As a photographer and editor Ponti published photographic prints, both his own and others, building an international clientele. From this time he systematically photog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlo Ponti's Megalethoscope
Carlo is a given name. It is an Italian form of Charles. It can refer to: *Carlo (name) *Monte Carlo *Carlingford, New South Wales, a suburb in north-west Sydney, New South Wales, Australia *A satirical song written by Dafydd Iwan about Prince Charles. *A former member of Dion and the Belmonts best known for his 1964 song, Ring A Ling. *Carlo (submachine gun), an improvised West Bank gun. * Carlo, a fictional character from Animal Crossing: Pocket Camp * It can be confused with Carlos * Carlo means “man” (from Germanic “karal”), “free man” (from Middle Low German “kerle”) and “warrior”, “army” (from Germanic “hari”). See also *Carl (name) *Carle (other) *Carlos (given name) Carlos is a masculine given name, and is the Portuguese and Spanish variant of the English name ''Charles'', from the Germanic ''Carl''. Notable people with the name include: Royalty *Carlos I of Portugal (1863–1908), second to last King of P ... {{disambig Italian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Perception
Depth perception is the ability to perceive distance to objects in the world using the visual system and visual perception. It is a major factor in perceiving the world in three dimensions. Depth perception happens primarily due to stereopsis and accommodation of the eye. Depth sensation is the corresponding term for non-human animals, since although it is known that they can sense the distance of an object, it is not known whether they perceive it in the same way that humans do. Depth perception arises from a variety of depth cues. These are typically classified into binocular cues and monocular cues. Binocular cues are based on the receipt of sensory information in three dimensions from both eyes and monocular cues can be observed with just one eye. Binocular cues include retinal disparity, which exploits parallax and vergence. Stereopsis is made possible with binocular vision. Monocular cues include relative size (distant objects subtend smaller visual angles than near obj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perspective (graphical)
Linear or point-projection perspective (from la, perspicere 'to see through') is one of two types of 3D projection, graphical projection perspective in the graphic arts; the other is parallel projection. Linear perspective is an approximate representation, generally on a flat surface, of an image as it is seen by the eye. Perspective drawing is useful for representing a three-dimensional scene in a two-dimensional medium, like paper. The most characteristic features of linear perspective are that objects appear smaller as their distance from the observer increases, and that they are subject to ''foreshortening'', meaning that an object's dimensions along the line of sight appear shorter than its dimensions across the line of sight. All objects will recede to points in the distance, usually along the horizon line, but also above and below the horizon line depending on the view used. Italian Renaissance painters and architects including Masaccio, Paolo Uccello, Piero della Fran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collimated Beam
A collimated beam of light or other electromagnetic radiation has parallel rays, and therefore will spread minimally as it propagates. A perfectly collimated light beam, with no divergence, would not disperse with distance. However, diffraction prevents the creation of any such beam. Light can be approximately collimated by a number of processes, for instance by means of a collimator. Perfectly collimated light is sometimes said to be ''focused at infinity''. Thus, as the distance from a point source increases, the spherical wavefronts become flatter and closer to plane waves, which are perfectly collimated. Other forms of electromagnetic radiation can also be collimated. In radiology, X-rays are collimated to reduce the volume of the patient's tissue that is irradiated, and to remove stray photons that reduce the quality of the x-ray image ("film fog"). In scintigraphy, a gamma ray collimator is used in front of a detector to allow only photons perpendicular to the surface to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accommodation (vertebrate Eye)
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus (optics), focus on an object as its distance varies. In this, distances vary for individuals from the far point—the maximum distance from the eye for which a clear image of an object can be seen, to the near point—the minimum distance for a clear image. Accommodation usually acts like a reflex, including part of the accommodation reflex, accommodation-convergence reflex, but it can also be consciously controlled. The main ways animals may change focus are: * Changing the shape of the lens. * Changing the position of the lens relative to the retina. * Changing the axial length of the eyeball. * Changing the shape of the cornea. Focusing mechanisms Focusing the light scattered by objects in a three dimensional environment into a two dimensional collection of individual bright points of light requires the light to be bent. To get a good image of these points of ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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