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Created page with "A lens array in a hexagon pattern A '''lens array''' is a collection of lenses arranged in a pattern or grid. It is a component of lig..."
[[File:Microlens Array.jpg|thumb|A lens array in a hexagon pattern]]
A '''lens array''' is a collection 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.
It may be called 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>
Lens arrays are useful because they 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.
Lens arrays can be found in infra-red motion detectors.<ref>https://www.youtube.com/embed/HroJyGDoXI8?t=23</ref><ref name="w944">{{cite web | title=Lens array | website=XVRWiki | date=2023-10-05 | url=https://www.xvrwiki.org/wiki/Lens_array | access-date=2024-10-01}}</ref>
A lens array used in integral imaging must have subretinal viewcone size.
__NOTOC__
==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>
The side with the roundings should generally face towards the source of the light. In a display, this means that the user's eye faces the flat side of the array.<ref name="w944"/>
==Manufacturing==
Lens arrays can be injection molded.
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===
* Glass
* PMMA
* [[Fused silica]]<ref name="x001">{{cite web | title=Fused Silica Microlens Arrays | website=Thorlabs, Inc. | url=https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2861}}</ref><ref name="w944"/>
==Uses==
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>
To make a plenoptic lens based display, each lens should be at the minimum 200 pixels wide and 200 pixels long.
==Novel==
It is possible to make a microlens array using [[fresnel lens]]es.<ref>https://holographix.com/wp-content/uploads/2019/01/MLA-Circles-Microlens-Arrays-2-e1548578651299.jpg</ref>
It is theoretically possible to make a liquid lens array, for example using water droplets.<ref name="w944"/>
It is theoretically possible to make a lens array that has a general curve to it, like on a semisphere.
A lens array can potentially be made out of a [[holographic optical element]].
It is possible to make a [[metalens array]].<ref name="w944"/>
==References==
<references />
[[Category:Optical components]]
[[Category:Light field]]
A '''lens array''' is a collection 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.
It may be called 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>
Lens arrays are useful because they 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.
Lens arrays can be found in infra-red motion detectors.<ref>https://www.youtube.com/embed/HroJyGDoXI8?t=23</ref><ref name="w944">{{cite web | title=Lens array | website=XVRWiki | date=2023-10-05 | url=https://www.xvrwiki.org/wiki/Lens_array | access-date=2024-10-01}}</ref>
A lens array used in integral imaging must have subretinal viewcone size.
__NOTOC__
==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>
The side with the roundings should generally face towards the source of the light. In a display, this means that the user's eye faces the flat side of the array.<ref name="w944"/>
==Manufacturing==
Lens arrays can be injection molded.
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===
* Glass
* PMMA
* [[Fused silica]]<ref name="x001">{{cite web | title=Fused Silica Microlens Arrays | website=Thorlabs, Inc. | url=https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2861}}</ref><ref name="w944"/>
==Uses==
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>
To make a plenoptic lens based display, each lens should be at the minimum 200 pixels wide and 200 pixels long.
==Novel==
It is possible to make a microlens array using [[fresnel lens]]es.<ref>https://holographix.com/wp-content/uploads/2019/01/MLA-Circles-Microlens-Arrays-2-e1548578651299.jpg</ref>
It is theoretically possible to make a liquid lens array, for example using water droplets.<ref name="w944"/>
It is theoretically possible to make a lens array that has a general curve to it, like on a semisphere.
A lens array can potentially be made out of a [[holographic optical element]].
It is possible to make a [[metalens array]].<ref name="w944"/>
==References==
<references />
[[Category:Optical components]]
[[Category:Light field]]
