METATOY (original) (raw)
A METATOY is a sheet, formed by a two-dimensional array of small, telescopic optical components, that switches the path of transmitted light rays. METATOY is an acronym for "metamaterial for rays", representing a number of analogies with metamaterials; METATOYs even satisfy a few definitions of metamaterials, but are certainly not metamaterials in the usual sense. When seen from a distance, the view through each individual telescopic optical component acts as one pixel of the view through the METATOY as a whole. In the simplest case, the individual optical components are all identical; the METATOY then behaves like a homogeneous, but pixellated, window that can have very unusual optical properties (see the picture of the view through a METATOY).
| Property | Value |
|---|---|
| dbo:abstract | A METATOY is a sheet, formed by a two-dimensional array of small, telescopic optical components, that switches the path of transmitted light rays. METATOY is an acronym for "metamaterial for rays", representing a number of analogies with metamaterials; METATOYs even satisfy a few definitions of metamaterials, but are certainly not metamaterials in the usual sense. When seen from a distance, the view through each individual telescopic optical component acts as one pixel of the view through the METATOY as a whole. In the simplest case, the individual optical components are all identical; the METATOY then behaves like a homogeneous, but pixellated, window that can have very unusual optical properties (see the picture of the view through a METATOY). METATOYs are usually treated within the framework of geometrical optics; the light-ray-direction change performed by a METATOY is described by a mapping of the direction of any incoming light ray onto the corresponding direction of the outgoing ray. The light-ray-direction mappings can be very general. METATOYs can even create pixellated light-ray fields that could not exist in non-pixellated form due to a condition imposed by wave optics. Much of the work on METATOYs is currently theoretical, backed up by computer simulations. A small number of experiments have been performed to date; more experimental work is ongoing. (en) |
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| dbo:wikiPageExternalLink | http://www.opfocus.org/index.php%3Ftopic=story&v=6&s=9 |
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| dcterms:subject | dbc:Imaging dbc:Optical_devices dbc:Geometrical_optics dbc:Optical_materials |
| gold:hypernym | dbr:Sheet |
| rdf:type | dbo:AnatomicalStructure yago:WikicatOpticalDevices yago:Artifact100021939 yago:Device103183080 yago:Instrumentality103575240 yago:Object100002684 yago:OpticalDevice103851341 yago:PhysicalEntity100001930 yago:Whole100003553 |
| rdfs:comment | A METATOY is a sheet, formed by a two-dimensional array of small, telescopic optical components, that switches the path of transmitted light rays. METATOY is an acronym for "metamaterial for rays", representing a number of analogies with metamaterials; METATOYs even satisfy a few definitions of metamaterials, but are certainly not metamaterials in the usual sense. When seen from a distance, the view through each individual telescopic optical component acts as one pixel of the view through the METATOY as a whole. In the simplest case, the individual optical components are all identical; the METATOY then behaves like a homogeneous, but pixellated, window that can have very unusual optical properties (see the picture of the view through a METATOY). (en) |
| rdfs:label | METATOY (en) |
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| prov:wasDerivedFrom | wikipedia-en:METATOY?oldid=1054151758&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Close-up_of_Dove-prism_array_seen_from_above.png wiki-commons:Special:FilePath/Infinitely_long_green...d_seen_through_a_Dove-prism_array.png |
| foaf:isPrimaryTopicOf | wikipedia-en:METATOY |
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