As long as we don't know what's really inside the fujinon lens this all can be only trial & error.I had a short look at some patents of crt lenses, and i can tell you, there are lots of possibilities.
The first lens(es) of this objective could be convex or concav as well. Some objectives use Petzval optics to correct crt's field curvature, others are working with a mixture of spheric/aspheric lenses, some with up to 8 lens elements.
Without a clear info of what is inside the objective the only way is to try with several convex/concave test lenses with different FLs. We don't even know the FL of the fresnels, so how calculate any thing?
The first lens(es) of this objective could be convex or concav as well. Some objectives use Petzval optics to correct crt's field curvature, others are working with a mixture of spheric/aspheric lenses, some with up to 8 lens elements.
Without a clear info of what is inside the objective the only way is to try with several convex/concave test lenses with different FLs. We don't even know the FL of the fresnels, so how calculate any thing?
There are LCD lens assemblys, how about using one of those instead. I know they make them (of course) but have yet to find one myself.🙂
What do you think???
Hi, just saw his thread and figured it really more of a small panel thing... but what do you guy think of the lcd and stats???
http://www.diyaudio.com/forums/showthread.php?s=&threadid=5846
should i try and fing one?? any one know where to look>???
cheers
Liam
Hi, just saw his thread and figured it really more of a small panel thing... but what do you guy think of the lcd and stats???
http://www.diyaudio.com/forums/showthread.php?s=&threadid=5846
should i try and fing one?? any one know where to look>???
cheers
Liam
It could be O.K., or Great hard to tell as remp said. And also as remp said it could be res. x3. Meaning they are taking the resolution x3 for red green and blue pixels but you only see one of those pixels at one moment in time so the actuall res. is 1/3 the figure. Its hard to tell without the real white papers to the panel. We dont even really know what this panel is yet...other than its a Sony, I'd wait for better specs. I would hate to see you get burned on a bad panel.😱
jizmmunki
I do however know the PSone is a great panel to use, but its 5". My Interact wasnt that bad to take apart and move the driver board out of way. Res is really good, contrast that of a lcd but still pretty good. Blacks do look black.
I do however know the PSone is a great panel to use, but its 5". My Interact wasnt that bad to take apart and move the driver board out of way. Res is really good, contrast that of a lcd but still pretty good. Blacks do look black.
cheers
Hum, yah im thinking about one of those 5" screens, but uid rather just go for a small one and then have the option of a nice simple slide projector, rather than building something... (im very lazy you see)
Yeah, kinda board of my tv based projecotr, and of my site (get so many emails daily... and not worth the 5 to 10 i sell a week...
)
so im selling off my fresnel lenses cheep now...
for you guys only this is... mention this site in your emails
A4 sized (about 10" by 7")
1 = £4
5 = £17
10 = £30
50 = £130
100 = £210
all prices include UK postage... (reocrded) ask for other postage if you want them... good for individuals wanting to make a projector, and for someone wanting to make a bit of doh on ebay selling the plans, or with a site like mine (warning tho... lots of time wasters will email you with questions then never buy!)
jizmmunki at the hot mail
Hum, yah im thinking about one of those 5" screens, but uid rather just go for a small one and then have the option of a nice simple slide projector, rather than building something... (im very lazy you see)
Yeah, kinda board of my tv based projecotr, and of my site (get so many emails daily... and not worth the 5 to 10 i sell a week...
)so im selling off my fresnel lenses cheep now...
for you guys only this is... mention this site in your emails
A4 sized (about 10" by 7")
1 = £4
5 = £17
10 = £30
50 = £130
100 = £210
all prices include UK postage... (reocrded) ask for other postage if you want them... good for individuals wanting to make a projector, and for someone wanting to make a bit of doh on ebay selling the plans, or with a site like mine (warning tho... lots of time wasters will email you with questions then never buy!)
jizmmunki at the hot mail
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