The Optacon was a portable device with a small, handheld camera that could be moved across any type of printed material to generate images on a fingertip-sized tactile display that were then felt and interpreted by a blind reader
The device, known as the Kurzweil-National Federation of the Blind Reader
, is a definite example of how people with vision disabilities can use assistive technology to improve their quality of life.
To produce a book in an alternative format is time consuming and expensive, so a book or a tape bought by a blind reader
can often cost well over the retail price of a print book.
It allows a blind reader
to "see" planets, galaxies, and nebulae by feeling the detailed bumps and lines of each image.
Simply creating a tactile version of what is on the page is rarely sufficient and often incomprehensible to the blind reader
So while a state like the United States is free to enact a copyright exception like the Chafee Amendment without conducting itself unlawfully--that is to say without laying itself open to the accusation that it is subjecting authors to measures that are unacceptable to the international community--a library for the blind outside the United States or a blind reader
outside the United States cannot, under the Berne Convention, lay claim to the benefits derived by United States residents under the Chafee amendment.
I'm the director of the Nebraska Library Commission Talking Book and Braille Service, and we just saw the letter to the editor in the June/July 2017 issue about Mother Earth News not being available for blind readers
of the Library of Congress program.
Shubham then did some online research and was shocked to learn that Braille printers, also called embossers, cost at least $2,000 -- too expensive for most blind readers
, especially in developing countries.
The complex has completed required studies to prepare a Braille copy of the Holy Qur'an to cater to the increasing demand from blind readers
Swift's secretary's report of 1912, however, signalled an intention to acquire more titles in British Braille and American Braille in the coming year, arguing that "several hundred blind readers
would thus be reached and benefited, who are now outside the influence of the C.