[visionlist] CRT monitor solutions

[Sol Simpson]

Hi Michael,

Yes, I think we may have lucked out with these monitors. 

The only 'downside' in terms of updating time is that they seem to update
the display in a scanning fashion like a CRT; it would have been nicer if
they updated the display all at one time like some LCDs seem to (the same
LCDS have buffering issues and long response times too though).

>> Perhaps one can follow the rule: 
>> if they offer stereo, than it's an unbuffered display.

I am not sure about this. For example, the Infocus DepthQ 120 Hz DLP
projector (http://www.projectorcentral.com/pdf/projector_spec_2850.pdf) that
has been around for years has a 1 frame internal buffer (we tested and
confirmed this, and the spec sheets also reports it!). It is DLP though, not
LCD.

Thanks again,

Sol
 

-----Original Message-----
From: Michael Bach [mailto:Michael.Bach at uni-freiburg.de] 
Sent: November-11-09 6:07 AM
To: Sol Simpson
Subject: Re: [visionlist] CRT monitor solutions

Dear Sol:

> We used the BBTK (http://www.blackboxtoolkit.co.uk/)
yes, I had already looked that up, looks good, even runs on my preferred
platform ;).

> to test the timing using photo sensors and TTL outputs...
That's a perfect way to test this. But this means that you were sort of
lucky to find out that these monitors did have these desirable properties?
And others presumably didn't? It would really be great if the manufacturers
would mention this. 

Perhaps one can follow the rule: if they offer stereo, than it's an
unbuffered display.


Thanks & best, Michael.
-- 
Prof. Michael Bach PhD, Ophthalmology, University of Freiburg, Killianstr.
5, 79106 Freiburg, Germany. 
Michael.Bach at uni-freiburg.de   <http://www.michaelbach.de>