[optacon-l] Re: Request for some advice
- From: don bishop <w6smb@xxxxxxxxxxxxx>
- To: optacon-l@xxxxxxxxxxxxx
- Date: Sun, 29 Nov 2009 21:05:46 -0800
Richard,
The pins of the optacon array are meant to be felt rather lightly so the
finger can more easily distinguish the shape of the character being
displayed. You should keep the camera moving and not stop in one place
to spend time in feeling the shape of the character as indicated by the
vibrating pins. To stop on the pins tends to lessen the feeling of the
finger and causes it to be less sensitive.
Pressing down too hard on the array could certainly cause damage and
also would lessen the effectiveness of the optacon in reading.
I hope this answers your question.
Don
On 11/29/2009 7:58 PM, Richard Vickery wrote:
> Hello everyone,
>
> I am a University-based neuroscientist at UNSW in Australia. We are using an
> Optacon R1-B as a research tool to investigate tactile function. This is
> primarily basic research, but may in the longer term have application in the
> development of better haptic feedback devices for remote sensing and assisting
> the disabled.
>
> Our Optacon is very sensitive to the contact force between the finger and the
> device. If you hold your finger down on it too firmly, the pins barely move
> and
> are difficult to detect. Also the sensation produced by each column seems
> different with the side ones being least effective. I was hoping that you
> expert
> Optacon users might be able to tell me if all Optacons behave this way, or
> whether our one is in need of a major overhaul.
>
>
> Thanks in advance for your help,
>
> Best wishes
> Richard Vickery
>
>
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