{"id":5038,"date":"2010-11-15T23:18:05","date_gmt":"2010-11-16T04:18:05","guid":{"rendered":"http:\/\/blog.kenperlin.com\/?p=5038"},"modified":"2010-11-16T07:19:39","modified_gmt":"2010-11-16T12:19:39","slug":"eccescopy-part-13","status":"publish","type":"post","link":"http:\/\/blog.kenperlin.com\/?p=5038","title":{"rendered":"Eccescopy, part 13"},"content":{"rendered":"

It would be appealing to think in terms of the eccescope in a form factor of a contact lens. There actually has been some interesting work in putting electronics on contact lenses, with the goal of eventually building a contact lens display. Babak Parviz and his former student Harvey Ho at the University of Washington have demonstrated that a contact lens containing electronic components can be worn by a rabbit for twenty minutes with no ill effects. The contact lens is shown below:<\/p>\n


\n
\n<\/center>
\n <\/p>\n

It has not been reported whether the rabbit thought this was a good idea, but that is a subject for another post.<\/p>\n

The hope is that this will lead to eventual development of a kind of “hololens”, in which the contact lens somehow creates an image upon the eye’s retina:<\/p>\n


\n\"hololens\"
\n<\/center>
\n <\/p>\n

Unfortunately, this is more difficult than it might seem. The problem is that the hololens is at an awkward place within the optical system. An image that originates within a contact lens — pressed against the eye’s cornea — is too near to be imaged by the eye’s own lens via conventional optics. Either a collimated light would need to originate inside the hololens (in other words, a tiny laser would need to be embedded inside the hololens), or else the lens would need to incorporate a fine array of micro-scale LEDs, each with its own tiny collimating lens, and each on the order of few microns in width.<\/p>\n

This is almost certainly possible in the long term, but it is going to take a formidably large amount of engineering to get all the components in place. So while this may well be the eventual future, I wouldn’t bet on this approach winning out for the first generation of eccescopic displays.<\/p>\n","protected":false},"excerpt":{"rendered":"

It would be appealing to think in terms of the eccescope in a form factor of a contact lens. There actually has been some interesting work in putting electronics on contact lenses, with the goal of eventually building a contact lens display. Babak Parviz and his former student Harvey Ho at the University of Washington … Continue reading “Eccescopy, part 13”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5038"}],"collection":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5038"}],"version-history":[{"count":9,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5038\/revisions"}],"predecessor-version":[{"id":5049,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5038\/revisions\/5049"}],"wp:attachment":[{"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5038"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.kenperlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}