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[[File:Microlens Array.jpg|thumb|right|140px|A lens array with a hexagon pattern]]
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[[File:Microlens Array.jpg|thumb|200px|A lens array in a hexagon pattern]]
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A '''lens array''' is a collection of [[lens]]es arranged in a specific pattern or grid. It is a component of [[light field camera]]s and some types of [[light field display]]s.
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A '''lens array''' is a component of a display that can help to generate a [[light field]]. It consists of [[lens]]es arranged in a pattern or grid. It is a component of [[light field camera]]s and some types of [[light field display]]s.
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Lens arrays are useful because they translate between angle of light and position of light.
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Lens arrays translate between angle of light and position of light.
A lens array is a [[microlens array]] if its lenses are less than 1 millimeter wide.
A lens array is a [[microlens array]] if its lenses are less than 1 millimeter wide.
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Lens arrays can be found in infra-red motion detectors.<ref>https://www.youtube.com/embed/HroJyGDoXI8?t=23</ref>
Lens arrays can be found in infra-red motion detectors.<ref>https://www.youtube.com/embed/HroJyGDoXI8?t=23</ref>
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A lens array used in integral imaging must have a viewcone size significantly smaller than a human retina in order to solve the [[vergence-accommodation conflict]]. If the viewcone size is more than the width of the retina, the display will only show parallax, and no correct focal cues.
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It may be sold as a "hexagonal lens array".<ref name="s392">{{cite web | title=Hexagonal Lens Array (large) | website=Luximprint | date=2023-10-05 | url=https://www.luximprint.com/product/hexagonal-lens-array-large/ | access-date=2024-09-15}}</ref>
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__NOTOC__
==Optics==
==Optics==
Each lens in the array has its own optical axis. However, when the array is viewed as a cohesive unit, the lenses form a shared main optical axis.<ref name="u455">{{cite web | title=Microstructure Lens Arrays | website=Laser Focus World | url=https://www.laserfocusworld.com/directory/finished-optics-coatings-components/lens-arrays/product/14303094/avantier-inc-microstructure-lens-arrays}}</ref>
Each lens in the array has its own optical axis. However, when the array is viewed as a cohesive unit, the lenses form a shared main optical axis.<ref name="u455">{{cite web | title=Microstructure Lens Arrays | website=Laser Focus World | url=https://www.laserfocusworld.com/directory/finished-optics-coatings-components/lens-arrays/product/14303094/avantier-inc-microstructure-lens-arrays}}</ref>
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==Manufacturing==
==Manufacturing==
Lens arrays can be injection molded.
Lens arrays can be injection molded.
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A lens array can be made from a silicone mold made with 1 mm stainless steel balls. The lens material can be epoxy resin.<ref name="i170">{{cite web | title=Getting A Fly’s-Eye View With Microfabricated Lens Arrays (Comments section)| website=Hackaday | date=2021-09-07 | url=https://hackaday.com/2021/09/07/getting-a-flys-eye-view-with-microfabricated-lens-arrays/ | access-date=2024-09-13}}</ref>
===Materials===
===Materials===
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==Uses==
==Uses==
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A lens array can be found in a [[light field camera]].<ref name="w180">{{cite web | title=Lytro Specifications: A Deeper Look Inside | website=LightField Forum | url=http://lightfield-forum.com/2012/11/lytro-specifications-a-deeper-look-inside/ | access-date=2024-07-09}}</ref>
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Lens array can be found in [[light field camera]]s.<ref name="w180">{{cite web | title=Lytro Specifications: A Deeper Look Inside | website=LightField Forum | url=http://lightfield-forum.com/2012/11/lytro-specifications-a-deeper-look-inside/ | access-date=2024-07-09}}</ref>
To make a plenoptic lens based display, each lens should be at the minimum 200 pixels wide and 200 pixels long.
To make a plenoptic lens based display, each lens should be at the minimum 200 pixels wide and 200 pixels long.
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[[Category:Optical components]]
[[Category:Optical components]]
[[Category:Light field]]
[[Category:Light field]]
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[[Category:Light field display]]