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Sunglasses: Difference between revisions
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== Construction == | == Construction == | ||
=== Lens === | === Lens === | ||
The color of the lens can vary by style, fashion, and purpose, but for general use, [[green]], [[grey]], | The color of the lens can vary by style, fashion, and purpose, but for general use, [[green]], [[grey]], yellow, or [[brown]] is recommended to avoid or minimize [[color perception|color distortion]] which would be dangerous when, for instance, driving a car. Grey lenses are considered neutral because they do not enhance contrast or distort colors. Brown and green lenses cause some minimal color distortion, but have contrast-enhancing properties. Red lenses are good for medium and lower light conditions because they are good at enhancing contrast but causes color distortion. Orange and yellow lenses have the best contrast enhancement at depth perception but cause color distortion. Yellow lenses are commonly used by [[golfers]] and [[shooters]] for its contrast enhancement and depth perception properties. Blue and purple lenses offer no real benefits and are mainly cosmetic. Clear lenses are used typical to protect the eyes from impact, debris, dust, or chemicals. Some sunglasses with interchangeable lens have optional clear lenses to protect the eyes during low light or night time activities. Debate exist as to wether "blue blocking" or amber tinted lenses may have a protective effect.<ref name="AAO">American Academy of Ophthalmology. [http://www.aao.org/aao/patients/eyemd/upload/Sunglasses.pdf "Information from Your Eye M.D.: Sunglasses."] November 2003.</ref> | ||
Some models have [[polarization|polarized]] lenses (made from [[Polaroid]] or a similar material) to reduce glare caused by light reflected from polarizing surfaces such as water as well as by polarized [[diffuse sky radiation]] (skylight) | Some models have [[polarization|polarized]] lenses (made from [[Polaroid]] or a similar material) to reduce glare caused by light reflected from polarizing surfaces such as water as well as by polarized [[diffuse sky radiation]] (skylight) | ||
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Corrective lenses can be darkened to serve the same purpose, or secondary clip-on dark lenses can be placed in front of the regular lenses. Some lenses graually darken with bright light and lighten in darkness. These are known as [[photochromic lens]]es. | Corrective lenses can be darkened to serve the same purpose, or secondary clip-on dark lenses can be placed in front of the regular lenses. Some lenses graually darken with bright light and lighten in darkness. These are known as [[photochromic lens]]es. | ||
Sunglass lenses are made from either glass or plastic. Plastic lenses are typically made from [[Polymethyl methacrylate|acrylic]], [ | Sunglass lenses are made from either glass or plastic. Plastic lenses are typically made from [[Polymethyl methacrylate|acrylic]], [https://vatlieunhaxanh.net/danh-muc/tam-lop-lay-sang-poly/ polycarbonate], or [[CR-39]]. Glass lenses have the best optical clarity and scratch resistance, but are heavier than plastic lenses. They can also shatter or break on impact. Plastic lenses are lighter than glass lenses, but are more prone to scratching. They do however, offer more resistance to shattering than glass. Polycarbonate lenses are the lightest, and are also almost shatterproof, making them good for impact protection. <!--They are probably more expensive, though. Right?--> CR-39 lenses are the most common plastic lenses, due to their low weight, high scratch resistanc, low transparency for ultraviolet and infrared radiation, and other advantageous properties. | ||
For sunglasses that also include vision correction, see also [[corrective lens]]. | For sunglasses that also include vision correction, see also [[corrective lens]]. | ||
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'''Teashades''' were a type of [[Psychedelic art|psychedelic]] wire-rim sunglasses that were often worn, usually for purely aesthetic reasons, by members of the 60's drug counterculture. The common teashade is supported by pads on the bridge of the nose and has a thin wire frame. A uniquely-colored or darkened glass [[#Lens|lens]] was usually preferred, perhaps to hide bloodshot eyes from [[Cannabis (drug)|cannabis]] use, but probably more often simply as a fashion statement. | '''Teashades''' were a type of [[Psychedelic art|psychedelic]] wire-rim sunglasses that were often worn, usually for purely aesthetic reasons, by members of the 60's drug counterculture. The common teashade is supported by pads on the bridge of the nose and has a thin wire frame. A uniquely-colored or darkened glass [[#Lens|lens]] was usually preferred, perhaps to hide bloodshot eyes from [[Cannabis (drug)|cannabis]] use, but probably more often simply as a fashion statement. | ||
The term has now fallen into disuse, although references can still be found in literature of the time. Teashades are briefly referenced during a police training video in [[Hunter S. Thompson | The term has now fallen into disuse, although references can still be found in literature of the time. Teashades are briefly referenced during a police training video in [[Hunter S. Thompson]]'s ''Fear and Loathing in Las Vegas''. | ||
=== Glacier Glasses === | === Glacier Glasses === | ||
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In the early 1900's, the use of sunglasses started to become more widespread, especially among the pioneering stars of silent movies. But early movie stars did not wear sunglasses as much to avoid being recognized than to protect their eyes from the harshly bright lighting of some early film studios, often taking their sunglasses off only when stepping in front of the camera to shoot a scene. | In the early 1900's, the use of sunglasses started to become more widespread, especially among the pioneering stars of silent movies. But early movie stars did not wear sunglasses as much to avoid being recognized than to protect their eyes from the harshly bright lighting of some early film studios, often taking their sunglasses off only when stepping in front of the camera to shoot a scene. | ||
Inexpensive mass-produced sunglasses were introduced to America by [[Sam Foster]] in [[1929]]. Foster found a ready market on the beaches of [[Atlantic City, New Jersey]], where he began selling sunglasses under the name [[Foster Grant]] from a | Inexpensive mass-produced sunglasses were introduced to America by [[Sam Foster]] in [[1929]]. Foster found a ready market on the beaches of [[Atlantic City, New Jersey]], where he began selling sunglasses under the name [[Foster Grant]] from a Woolworth on the [[Boardwalk (Atlantic City)|Boardwalk]]. | ||
Sunglasses would not become [[polarisation|polarized]], however, until [[1936]], when Edwin | Sunglasses would not become [[polarisation|polarized]], however, until [[1936]], when Edwin | ||
H. Land began experimenting with making lenses with his patented [[Polaroid]] filter. | H. Land began experimenting with making lenses with his patented [[Polaroid]] filter. | ||
Hall & Oates saxaphonist [[Charles DeChant]] wore sunglasses in his appearances in the Hall & Oates music videos. Charles was often referred to by the band as Charles "Mr. Casual" DeChant due to his fashion accumen. | |||
In [[2004]], [[Oakley (fashion)|Oakley]] developed ''Thump'', sunglasses with built-in digital audio player. This design has been copied by a number of smaller companies. | In [[2004]], [[Oakley (fashion)|Oakley]] developed ''Thump'', sunglasses with built-in digital audio player. This design has been copied by a number of smaller companies. | ||
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*[[John Petrucci]] (Guitarist of [[Dream Theater]]). | *[[John Petrucci]] (Guitarist of [[Dream Theater]]). | ||
*Sam Gill (Australian saxophonist, known for his large collection). | *Sam Gill (Australian saxophonist, known for his large collection). | ||
* | *Bono (Lead singer of [[U2]]). | ||
*[[P.Diddy]] (Hip-Hop/Rnb Artist). | *[[P.Diddy]] (Hip-Hop/Rnb Artist). | ||
*[[Liam Gallagher]] (Lead singer of | *[[Liam Gallagher]] (Lead singer of Oasis). | ||
*[[Roy Orbison]], singer. | *[[Roy Orbison]], singer. | ||
*[[Chuck Amato]], football coach. | *[[Chuck Amato]], football coach. | ||
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== Notes == | == Notes == | ||
{{reflist}} | {{reflist}} | ||
<references /> | |||
[[he:משקפי שמש]] | [[he:משקפי שמש]] | ||
