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- Eyeshield 21
- Eyeshield
- Yusuke Murata
- Riichiro Inagaki
- List of Eyeshield 21 episodes
- Takeshi Obata
- List of Eyeshield 21 characters
- List of Eyeshield 21 chapters
- Sena Kobayakawa
- Viz Media
- Eyeshield 21 Wiki - Fandom
- Amazon.com: Eye Shield
- The Official Website for Eyeshield 21 - VIZ
- Watch Eyeshield 21 - Crunchyroll
- Eyeshield 21 - MyAnimeList.net
- Read Eyeshield 21 Manga - MangaTown
- Eyeshield 21 - MangaDex
- Eyeshield 21 (TV Series 2005–2008) - IMDb
- Eyeshield 21 - Anime-Planet
Eyeshield GudangMovies21 Rebahinxxi LK21
An eyeshield, also referred to as a visor, is a piece of gridiron football equipment that was invented in the 1980s. In the mid 1990s, as an effort to prevent brain and head injuries, headgear became mandatory in the game of football. The eyeshield was created to protect the eyes of football players during games and practices. It is a curved piece of plastic that attaches to the front of a football helmet. Safety equipment such as the facemask, eyeshields, and other face shields have been adopted over time to prevent player injury. The eyeshield leaves the mouth exposed, but covers the eyes and nose. The piece of equipment is made from various materials and by many different brands. Only clear eyeshields are permitted for use in high school football games because eyes need to be seen while checking for a concussion. For college-level players, the eyeshield may be tinted for players with eye problems.
Production
The first football visors were made by Oakley. Eyeshields can be made out of plutonite, which is a synthetic material that contributes to its great durability compared to other eyeshields made out of polycarbonate. The eye wear can also be injection-molded, which gives curvature and allows the lenses to reflect glare and enable the players to have increased visibility in most weather conditions. But most eyeshields are made out of polycarbonate. All visors are made curved in order to cover the entire eye area, shielding it from injury and light. Other well-known brands of eyeshields include Nike, Under Armour. To provide a clear view, most eyeshields are wrapped. Another way of providing a clear view to players is using APVX material, which also makes the lens less likely to crack. A shock dampening attachment reduces damage to the eyewear, making it strong and able to withstand hard impact. Most eyeshields are created universal so they can fit almost all helmets and do not require special tools to install. Most tinted visors come in 20,45, and 60 percent.[6] Polarized tints block different UVA, UVC, and UVB rays and harmful blue lights. Eyeshields come in a variety of shades: amber, blue, metallic silver and golds, black, polarized and even rainbow.
Rules
Only clear eyeshields are permitted in high school football because eyes are needed to be seen while checking for a concussion. For college level players, the eyeshield may be tinted for players with eye problems. The NFL allows dark visors to be worn and reflective mirrors but does not allow colored or iridium visors. Tinted visors were banned from the NFL for 20 years until 2019 when they became legal again.
Durability
The durability of eyeshields were tested when eye specialists at Ohio State University used an air cannon to hurl baseballs at the visors. The impact was designed to mimic a force similar to being kicked in the face, a common occurrence during football play. The tested shields successfully maintained their structural integrity after being hit with baseballs that were propelled at velocities of up to 218 ft per second (150 miles per hour).
Adjustments
In 2019, optometrists and ophthalmologists at the University of Alabama at Birmingham worked together with BlazerAthletics to not only create visors to help vision- challenged football players, but also adjusted the rule book to allow players with eye problems to be able to wear the eyeshields during games. The special visors will assist football players that have medical-related light sensitivity to be able to play the game. Taylon Lewis, 11 at the time, was greatly impacted by this. He was born with albinism and suffers from light sensitivity because he naturally has no melanin in either of his irises to block the sun.
References
Kata Kunci Pencarian:
"EyeShield 21 Volume 23" | Yūsuke murata, Manga, Manga covers
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Eye Shield - opticalorigin: professional optometric and ophthalmic ...
eyeshield
Daftar Isi
Eyeshield 21 Wiki - Fandom
Apr 18, 2008 · The Oujou White Knights are a High School American Football team based on Ojo Private Senior High School in Tokyo. They are the main rivals of the Deimon Devil Bats throughout the series, and the team's star linebacker …
Amazon.com: Eye Shield
Protect Your Eyes with Precision and Comfort. Previous. Need help? Visit the help section or contact us. Get FREE Shipping on eligible orders shipped by Amazon.
The Official Website for Eyeshield 21 - VIZ
Eyeshield 21. Catch all the bone-crushing action and slapstick comedy of Japan’s hottest football manga!
Watch Eyeshield 21 - Crunchyroll
Eyeshield 21 - MyAnimeList.net
Apr 6, 2005 · Looking for information on the anime Eyeshield 21? Find out more with MyAnimeList, the world's most active online anime and manga community and database. Shy, reserved, and small-statured, Deimon High School …
Read Eyeshield 21 Manga - MangaTown
Wimpy Sena Kobayakawa has been running away from bullies all his life. But when the football gear comes on, things change--Sena's speed and uncanny ability to elude big bullies just …
Eyeshield 21 - MangaDex
Enjoy all the bone-crushing action and slapstick comedy that this heartwarming coming-of-age story has to offer. Wimpy Sena Kobayakawa has been running away from bullies all his life.
Eyeshield 21 (TV Series 2005–2008) - IMDb
Eyeshield 21: With Roger Craig Smith, Liam O'Brien, Sam Riegel, Patrick Seitz. High school freshman Sena, frequently bullied for his small stature, discovers a talent for running. Football maniacs Hiruma and Kurita recruit Sena, …
Eyeshield 21 - Anime-Planet
Yet to keep his privacy intact and his dangerous hobby a secret from his overprotective childhood friend Mamori, Sena is forced to develop a secret identity: the ace running back, Eyeshield 21! But the world is full of talented …