Re: one-handed optacon
- From: "Francesca Diodati" <mdiodat@xxxxxx>
- To: <optacon-l@xxxxxxxxxxxxx>
- Date: Tue, 11 Jul 2006 22:30:15 +0200
I feel exactly the same way. My dream feature in a new optacon is definitely
the ability to use it with only one hand.
----- Original Message -----
From: "Charles Pond" <dg140@xxxxxxxxxxxxxxxxxxx>
To: <optacon-l@xxxxxxxxxxxxx>
Sent: Sunday, July 09, 2006 2:16 PM
Subject: one-handed optacon
> Some observations about a one-handed optacon from someone on a different
> list. This sprung from the camera that talks stuff.
> [quoted lines by dg140@xxxxxxxxxxxxxxxxxxx on 2006/07/07 at
> 15:39 -0400]
> >Is it necessary for cognitive reasons for the optacon to have been
> >two-handed, or was that an artifact of yesteryaar's technology?
>
> I think it's an artifact of the technology having been much older. If
> you add
> up the weights and the sizes of the tactile array and battery, you'd
> have had
> something which would've been way too heavy and big for ease of use and
> motion
> with a single hand over a long period of time. I got my optacon back in
> the mid
> '70s, so the technology is 30 to 35 years old.
>
> >With the optacon as you know, the camera is generally moved from
> >left to right (with some exceptions). The tactile image moves under
> the
> >reading finger on the opposite hand from right to left.
> Kinaesthetically,
> >it would seem to be the same for a one-handed optacon. Would this
> pose a
> >problem, or is the strange feeling of inner-vertigo I have when I
> imagine
> >using a one-handed optacon an indication that there is an intrinsic
> need
> >for a two-handed model?
>
> No, I don't think so. When I read braille I move my hand from left to
> right and
> the dots pass under my finger (on the same hand) from right to left.
> When
> sighted people read they move their eyes from left to right and the
> image
> passes those same eyes from right to left. That's the way everything
> works and I think we'd find it completely strange to have it any otehr
> way.
>
> I think a single-handed optacon-like device would have another
> advantage.
> The optacon camera had a pair of rollers which forced the user to move
> the camera in a straight line. This was necessary because of the
> difficulty of maintaining the correct vertical position when the
> feedback was coming from the other hand.
> I don't think a single-handed device would need this as it'd be much
> more
> like directly feeling the lines. A bit of vertical jitter wouldn't
> matter at all since the hand being used would directly know what it
> itself is doing. This, for example, would sure make reading graphs
> easier.
>
>
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