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Cientistas criam lente de contato que dá zoom

Parece ficção científica — as lentes ativadas por impulsos elétricos requerem apenas duas piscadas para focar no objeto desejado

Habilidades robóticas dignas de filmes como “Exterminador do Futuro” parecem estar mais próximas dos humanos. Um estudo publicado esta semana na Advanced Functional Materials apresentou um protótipo de lentes de contato que permitem dar zoom em determinados objetos.

As lentes são bem fáceis de usar: o indivíduo deve piscar duas vezes seguidas para dar zoom e repetir o mesmo procedimento para voltar à visão normal. Isso só é possível devido à diferença de potencial elétrico entre a parte da frente e de trás do globo ocular. O olho tem um campo elétrico que pode ser medido quando realizamos determinados movimentos, como olhar para a esquerda, direita ou piscar.

O que o protótipo faz é identificar os sinais elétricos do movimento (no caso, as duas piscadelas) e traduzi-lo no zoom. As lentes são feitas de um material flexível parecido com o cristalino a parte do olho responsável pelo foco. Ao receber os sinais, as lentes são capazes de mudar de forma para alterar sua distância focal em até 32%. 

Mas antes de começar a se imaginar com um olho biônico, é bom saber que por enquanto o protótipo só funciona em conjunto com eletrodos colados nas têmporas do paciente (e convenhamos que a maioria das pessoas não quer sair de casa parecendo a Eleven de Stranger Things). São eles que captam os sinais elétricos, mas terão que ser substituídos por aparelhos menores ou incorporados à própria lente antes que ela esteja disponível ao público.

Essa não é a primeira vez que a ciência desenvolve “lentes inteligentes”. Em 2013, pesquisadores criaram uma lente de contato que também era capaz de dar zoom somente com uma piscada a diferença é que o usuário precisava usar um óculos eletrônico por cima dela, anulando um dos principais propósitos da lente de contato: ser discreta.

Ainda mais recentemente, uma pesquisa realizada pela Universidade de Stanford criou óculos que ajustam o foco automaticamente usando apenas o movimento do olhar do usuário. O inconveniente, mais uma vez, é que eles não são muito discretos parecem mais um headset de realidade aumentada. Se você quiser continuar saindo de casa sem chamar muita atenção, é melhor se contentar com os óculos e lentes normais por enquanto.

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    Now, what if you could raise your engagement by 100%, or 1000%?

    Truth is, it is not the most complicated thing in the world to get more. As an example, all the old pros use our website.

    Automagically see tons of likes on your images just minutes after posting.

    With this you’ve a big chance to be featured in the “Top Post” section.

    This is all great, but you have actually got to put in the work to make it happen. Actually, it’s not real work.
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    2. Plug your Instagram username.
    3. The 3 pictures you posted last will get 10 – 15 likes. Just like that.

    Hitting the Top Post page will 10X your InstaGrowth. But you’ve got to do more than just want it–you’ve got to do something about it. Are you willing?

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    Automagically see tons of likes on your images just minutes after posting.

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    Hitting the Top Post page will 10X your Instafame. But you’ve got to do more than just want it–you’ve got to do something about it. Are you willing?

    Happy image-uploading.

    Curtir