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Revision as of 19:48, 15 December 2018 editUziel302 (talk | contribs)Extended confirmed users63,343 editsNo edit summary← Previous edit Revision as of 01:59, 21 February 2021 edit undoHerostratus (talk | contribs)Autopatrolled, Extended confirmed users, File movers, New page reviewers, Pending changes reviewers, Rollbackers53,198 edits it's just a really weak article, let's see if we can gussy it up some and make it worthwhile... it's pretty borderline as a stand-alone. The good refs are on peripheral stuff like how mirrors are made. Still, it's a worthwhile subject.Tag: citing a blog or free web hostNext edit →
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{{more citations needed|date=February 2015}}'''Black Widow (paint mix)''' (also known as a Black Widow Ultra (EU) or (Black Widow US) is a non-commercial ] project to design a paint mix to be used as the base ] (do it yourself) ]. Led by Mechman Alternators (US), Wbassett (US) and Custard10 (EU),{{clarify|date=October 2012}}<ref>{{Cite web|url=https://www.avforums.com/members/custard10.207025/|title=custard10|website=AVForums|language=en-US|access-date=2018-08-02}}</ref> the paint mix is made from easily accessible materials from the ] and the ], and could outperform commercial projection screens. '''Black Widow''' (also known as a Black Widow Ultra in Europe) is a non-commercial ] project to design a paint mix to be used as the base ] (do it yourself) ]. Anonymous DIYers responsible for popularizing Black Widow in the DYI community community include Mechman Alternators (US), Wbassett (US) and Custard10 (EU).<ref name=AVForums/> The paint mix is made from easily accessible materials and could outperform much more expensive commercial projection screens.


Black Widow Paint is a paint with four special slick agents that seek to be competitive with other projection screen manufactures. Black Widow has four special slick agents that seek to be competitive with other projection screen manufactures. A typical formula for Black Widow is 4 parts commercial water-based matte white paint, ] with black paint to a shade of N7.8{{explain}} (N8 is acceptable, and simpler to make), and 1 part water-based fine silver paint (although there is no one set formula).<ref name=Jutai/>


==History of DIY painted screens== ==History of DIY painted screens==
{{Main|Projection screen}} {{Main|Projection screen}}
⚫ Projection screens are either white or gray. Each has advantages and disadvantages. A white screen is more satisfactory (better balanced and more accurately representating the source color) when it is close to ] (the international standard illumination conditions). A gray screen is more accurate when it is closer to neutral, based on parameters such as color balance (L*ab and xyY values), ] and ].<ref name=ZoosNet/>


A common way to improve a simple neutral gray color, up until the 2010s, has been by the use of ] (pearlescent) and poly coatings.<ref name=ZoosNet/> The problem with mica is it causes a color shift due to ]<ref name=Stille/><ref name=ZoosNet/>. Thus a non-interference pigment would be an improvement. It was discovered{{when|date=February 2021}}{{who|date=February 2021}} that by adding aluminum-based paint (which is water-based, and primarily made out of aluminum with no other colorants), a gray color was created. (Aluminum has been used since the mid 20th century{{citation needed|date=February 2021|reason=There are various sources stating this, but none are sufficiently reliable. But it's apparently true, and there are surely reliable sources stating this somewhere.}}for ] of ]s, replacing silver, mercury, and other substances. Silver is the most reflective across the visible spectrum, reflecting 95 percent of light. But silver is subject to tarnish and other degradations, and mercury is toxic. Aluminum is slightly less reflective than silver but still reflects 90 percent of light.)<ref name=STE/>
⚫ Projection screens are primarily white or gray. A white screen is better balanced and more accurate {{clarification|date=October 2018}} when it is close to ] (the international standard illumination conditions). A gray screen is more accurate when it is closer to neutral, based on parameters such as color balance (L*ab and xyY values), ] and ].

The most popular{{citation needed|date=October 2018|reason=Unverified claim}} way to improve a simple neutral gray color, up until now, has been by the use of ] (pearlescent) and poly coatings. The problem with mica is it causes a color shift. To improve on a well-balanced neutral gray, without introducing color shifting, non-interference pigments are used. It was discovered that by adding aluminum-based paint (which is water-based, primarily made out of aluminum with no other colorants), a gray color was created. This paint has been used over the years{{citation needed|date=October 2018|reason=Used by who, for how long?}} as a 'silver' substitute, since the aluminum's bright and reflective properties are conducive to applications such as manufacturing ]s.


==References== ==References==
{{Reflist}} {{Reflist|refs=
<ref name=AVForums>{{Cite web|url=https://www.avforums.com/members/custard10.207025/|title=custard10|website=AVForums|language=en-US|access-date=2018-08-02}}</ref>

<ref name=Jutai>{{cite web |url=https://simpleonline.blog/2014/10/13/how-to-build-a-300-screen-that-performs-like-a-2000-one/ |title=How to build a $300 screen that performs like a $2000 one |author=Roland Jutai |date=January 10, 2021 |work=Simple Home Cinema |accessdate=February 20, 2021}}</ref>

<ref name=ZoosNet>{{cite web |url=http://perfectschoices.blogspot.com/2017/05/black-widow-paint-mix-perfect.html |title=Black Widow (paint mix) Perfect |author=ZoosNet |date=May 23, 2017 |work=Perfect Choices |accessdate=February 20, 2021}}</ref>

<ref name=Stille>{{cite web |url=https://instructional-resources.physics.uiowa.edu/demos/6d3040-thin-film-interference-pohls-mica-sheet |title=6D30.40 - Thin Film Interference - Pohl's Mica Sheet |author=Dale Stille |date= |work=Instructional Resources and Lecture Demonstrations |publisher=College of Liberal Arts and Sciences, University of Iowa |accessdate=February 20, 2021}}</ref>

<ref name=STE>{{cite web |url=https://www.sharrettsplating.com/blog/silver-aluminum-mirror-coating/ |title=Silver Coating Mirrors vs. Aluminum Mirrors |publisher=Surface Transport Experts |accessdate=February 20, 2021}}</ref>


}}


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] ]
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Revision as of 01:59, 21 February 2021

Black Widow (also known as a Black Widow Ultra in Europe) is a non-commercial open source project to design a paint mix to be used as the base DIY (do it yourself) projection screen. Anonymous DIYers responsible for popularizing Black Widow in the DYI community community include Mechman Alternators (US), Wbassett (US) and Custard10 (EU). The paint mix is made from easily accessible materials and could outperform much more expensive commercial projection screens.

Black Widow has four special slick agents that seek to be competitive with other projection screen manufactures. A typical formula for Black Widow is 4 parts commercial water-based matte white paint, tinted with black paint to a shade of N7.8 (N8 is acceptable, and simpler to make), and 1 part water-based fine silver paint (although there is no one set formula).

History of DIY painted screens

Main article: Projection screen

Projection screens are either white or gray. Each has advantages and disadvantages. A white screen is more satisfactory (better balanced and more accurately representating the source color) when it is close to D65 (the international standard illumination conditions). A gray screen is more accurate when it is closer to neutral, based on parameters such as color balance (L*ab and xyY values), spectral curve and color temperature.

A common way to improve a simple neutral gray color, up until the 2010s, has been by the use of mica (pearlescent) and poly coatings. The problem with mica is it causes a color shift due to thin-film interference. Thus a non-interference pigment would be an improvement. It was discovered that by adding aluminum-based paint (which is water-based, and primarily made out of aluminum with no other colorants), a gray color was created. (Aluminum has been used since the mid 20th centuryfor silvering of mirrors, replacing silver, mercury, and other substances. Silver is the most reflective across the visible spectrum, reflecting 95 percent of light. But silver is subject to tarnish and other degradations, and mercury is toxic. Aluminum is slightly less reflective than silver but still reflects 90 percent of light.)

References

  1. "custard10". AVForums. Retrieved 2018-08-02.
  2. Roland Jutai (January 10, 2021). "How to build a $300 screen that performs like a $2000 one". Simple Home Cinema. Retrieved February 20, 2021.
  3. ^ ZoosNet (May 23, 2017). "Black Widow (paint mix) Perfect". Perfect Choices. Retrieved February 20, 2021.
  4. Dale Stille. "6D30.40 - Thin Film Interference - Pohl's Mica Sheet". Instructional Resources and Lecture Demonstrations. College of Liberal Arts and Sciences, University of Iowa. Retrieved February 20, 2021.
  5. "Silver Coating Mirrors vs. Aluminum Mirrors". Surface Transport Experts. Retrieved February 20, 2021.
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