[Blindmath] Tactile Displays?

[Rich Caloggero]

Haven't read the article you cited, but I wonder if this may be a reference 
to something called the optocon (not exactly sure of spelling). Its an old 
adaptive device that has a camera which is moved over the material to be 
read/imaged. The image is "displayed" on a small array of vibrating pins 
which sit under one finger. As you move the camera across the page (it was 
meant to allow reading of printed material), a vibrating image of the 
character moves across the pin display.  The image is very small, and it 
cannot be used to read pictures or graphs or anything; its specifically 
meant to read text.

Hope this helps..
-- Rich

----- Original Message ----- 
From: "Roopakshi Pathania" <r_akshi_tgk at yahoo.com>
To: <blindmath at nfbnet.org>
Sent: Thursday, January 15, 2009 12:21 PM
Subject: [Blindmath] Tactile Displays?


>
>
> Hi all,
>
> The recent discussion on the list regarding the accessibility of 
> Mathematica reminded me of the time when I was personally researching the 
> accessibility of same software. I came across an article about a blind 
> physicist. I realise that there are quite afew around these days, but this 
> particular physicist caught my attention. The article mentions a device 
> used by him that consists of a camera attached to a tactile display with 
> vibrating pins.
> My questions is: how does this device operates? Also, is this product in 
> the market or just a personal invention?
> The article can be found here.
> http://www.wolfram.com/news/strickland.html
>
> Regards
> Roopakshi from India
>
>
>
>
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