[optacon-l] Re: R1D vs Optacon 2
- From: "C. Pond" <cpond@xxxxxxxxx>
- To: <optacon-l@xxxxxxxxxxxxx>
- Date: Thu, 23 Oct 2014 20:58:44 -0400
Actually, the crispness of the image is not due to the number of pins. A
well conditioned optacon 2 can feel more crips than a dull R1D. Many
factors can affect the crispness of a display's image, and it is a science
and an art to improve an optacon's performance for certain. If the 24 chips
embedded in the R1D display are about to bite, the display can also have
that lack of crispness, and then what does one do? I have for instance good
bimorphs and dead chips; I have good chips and bad bimorphs. Rebuilding a
display would take enough of an engineer
s time and effort that one wonders--asside from the unique usefulness of the
device--if it is worth it financially. Lots of work indeed.
The image on the optacon 2 is not digitally processed as we think of in
today's terms; the chips act as a nice big switchboard. However, in earlier
models the dacs and adcs which controlled the threshold, the intensity and
other factors were both too slow and had too few bits to properly allow the
camera to track and the image to keep up with the reader (well, maybe it
could keep up with my reading). This was to some extend but never
completely addressed in later models of the optacon 2.
Charles
-----Original Message-----
From: Steve
Sent: Thursday, October 23, 2014 2:10 PM
To: optacon-l@xxxxxxxxxxxxx
Subject: [optacon-l] Re: R1D vs Optacon 2
Sarah,
I prefer the crispness of the R1D over the Optacon II. The Optacon II
letters feel mushier, not only due to the less-dense pins in the array 20x5
as compared to 24x6, but it also feels like the print is digitally
processed, so there seems to be a bit of a delay from what you scan to when
it appears in the array.
One advantage to the Optacon II is that it has a setting to work better with
some video displays.
With the R1D, you need to do a lot more fine adjustments and it may not read
a some displays at all. There is a video lens available for the R1D's, but
you'll be fortunate if you can find one.
Yes, you can read labels on cans and prescription bottles with the Optacon,
as well as organization and other charts, graphs, etc. As far as reading
buttons on remotes, in most cases you can do that. You may need to use the
invert colors button on the back of the Optacon to have it read light print
on a dark background.
Steve
Lansing, Pure Michigan
----- Original Message -----
From: "Sarah Clark" <sarah@xxxxxxxxxxxxxxx>
To: <optacon-l@xxxxxxxxxxxxx>
Sent: Wednesday, October 22, 2014 11:35 AM
Subject: [optacon-l] R1D vs Optacon 2
> Hello everyone,
> We have finally decided to purchase an optacon, and are trying to
> determine which model to get. My husband has used one in the past, but I
> never have, and he doesn't think he ever used one of the later models.
>
> We like the idea of the Optacon 2 because of the ability to use it on
> computer screens and other LCD displays. Is the R1D able to read any of
> these displays? (In addition to computers, I'm thinking of electronics,
> such as displays on microwaves, stereos, etc.
>
> Also, I have read that the R1D has more image arrays, 144 vs 100 I
> believe. But I am unsure as to what this actually means, and how it would
> impact the experience. For instance, does this mean larger images, more
> detailed, more of the image appearing at one time, etc? Is it easier to
> recognize letters with the r1D? Or if I have never had exposure to either,
> would I not really notice the difference?
>
> Also, what kinds of items can you read with the optacon? I realize it can
> be used to read printed documents, but what about things that are not
> flat, such as cans, pill bottles, remotes with buttons, etc.
>
> I would greatly appreciate any input anyone may have. And in case it is
> helpful, I lost my vision as a young adult, so I already know all the
> alphanumeric characters, so won't have that big learning curve to
> overcome.
>
> Thanks,
> Sarah
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