CurtPalme.com Home Theater Forum

ElTopo · Joined: 07 Nov 2006 Posts: 1608

Hi,

anyone out there who used these boards ?

http://www.barco.com/tde/(1101251830411371)/R5976594/00/Barco_UserGuide_R5976594_00__Owners-Manual-for-SEMU-III-Multi-Facet.pdf

ElTopo

Hulio · Joined: 15 Apr 2006 Posts: 469 Location: Belgium

I strongly doubt that someone here on the forum have ever used those. Some BR909 owners can have a SEMU III multifacet installed but will never use it.
While SEMU II advanced is for cilindrical screens, SEMU III multifacet was designed for spherical projection ( planetarium domes and pilot cockpit training ).
For a dome configuration, six Shocked

BR909's were used. The middle channel was projecting a pentagon-shape while the other five, a trapezoidal-shape adiacent to the pentagon. Nice things but not realy for HT blending.
What you are up to ? Very Happy

km987654 · Posted: Mon Nov 10, 2014 12:06 am Post subject:

Hulio · Joined: 15 Apr 2006 Posts: 469 Location: Belgium

Here it is

ElTopo · Joined: 07 Nov 2006 Posts: 1608

I'm trying bulid a dome Mr. Green

So for a normal blend i would need the SEMU II ?

ElTopo

Hulio · Joined: 15 Apr 2006 Posts: 469 Location: Belgium

Yes, for two-channel blend (both flat or ciurved screens), SEMU II advanced is all you need. It does not mean that with SEMU III one can not do a normal blend but is rare, more expensive and complicated.
Anyway, you can not use the normal SEMU, it was designed for 800, 808 and 12xx series projectors. It won't fit in a 909 chassis. So, at least SEMU II advanced is the way to go.
The advanced version have some extra features and improvements:
- for curved and spherical screens ( flat and cilindrical for lite version )
- full geometry control for straight and curved blending ( parallel to image edges only for lite version )
- CRT aging adaptation ( not aviable on lite version )
- minimum overlap zones 4% of image size ( 8% for lite version )
- 200 Mc bandwidth@3db for signals over 400 MHz ( 60 Mc @3db for lite version )
- not limited scan frequency ( 63KHz for lite version )
- resolutions exceeding 2500x2000 ( 1024x768 for lite version )

ElTopo · Joined: 07 Nov 2006 Posts: 1608

Question is where to get two sets of the SEMU II advanced ?

Thanks Hulio for the details.

Hulio · Joined: 15 Apr 2006 Posts: 469 Location: Belgium

I have one but sale is pending for another forum member. I should know in a couple of days if he will buy it. Else, i will PM you.