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View Full Version : Anyone using a Fresnel lens?



XyZspineZyX
11-03-2003, 11:38 AM
Looks to me like this would be a cool gizmo for the cockpit builders.

http://www.tacticalneuronics.com/content/Fresnel.asp



Message Edited on 11/03/0310:15PM by Tully__

XyZspineZyX
11-03-2003, 11:38 AM
Looks to me like this would be a cool gizmo for the cockpit builders.

http://www.tacticalneuronics.com/content/Fresnel.asp



Message Edited on 11/03/0310:15PM by Tully__

XyZspineZyX
11-03-2003, 02:16 PM
That's what is for the screen for the early projection TV systems, used a 3 gun CRT against a mirror projected on a Fresnel lens, just like the light called a Fresnel. If you want a real nice effect spend about $1,500 on an Epson DLP projector and project the image on a screen 6X8 ft, now there's an image. I have a Barco data 500 on a 6X8 screen in my basement, I'm in the process of building a simpit now.

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XyZspineZyX
11-03-2003, 02:54 PM
At the bottom of this page is a fresnel lense for 3D gaming by Thunderseat. Apparently, they are out of business though as I tried contacting them a few weeks a go with no positive results. /i/smilies/16x16_smiley-sad.gif

http://tailslide.firelight.dynip.com/hardware.asp




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XyZspineZyX
11-03-2003, 03:22 PM
I just built one a few weeks ago.
I would tell anyone, that taking the time to make this is well worth it!

On my 21 inch monitor the cockpit looks life size and the 3-D effect is stunning!One of my friends said the feeling of height and depth was making him nauseus.It's kind of like an I-Max movie effect.

I've tried the e-dimensional glasses and could never get them to work properly with IL-2.Even in games that they did work on I think the fresnel lens effect is much better even though it's not true 3-D.

I just replaced my cheap lens from staples with a slightly larger optical acrylic one from here.

http://www.independentliving.com/prodinfo.asp?number=454453&variation=&aitem=2&mitem=9

This lens is well worth the $ 35.00. It is crystal clear with almost no distortion near the edges.

Before you make a judgement do yourself a favor and get the $ 6.99 Full Page Magnifier available at Staples and just try holding it up in front of your monitor and play a track from IL-2.
You will be convinced!

Here is another article on fresnel lenses too.

http://www.rickleephoto.com/rlcoll.htm

XyZspineZyX
11-03-2003, 04:20 PM
Cool - good info. For once thing I never knew you don't pronounce the S!

XyZspineZyX
11-03-2003, 06:36 PM
Has anyone else got it or tried it,any feedback please and can you get them in the U K ,cheers

XyZspineZyX
11-03-2003, 07:03 PM
I used one for a bit and really does enhance gameplay but I had one negative side effect: eye strain.

Not sure why but after playing for about ~ an hour, my eyes would get really achy and tired. Playing w/out it, I didn't experience that problem. The biggest thing the lens will do is help with acquring targets especially on the ground. If it wasn't for my eye strain problem, I would be using for all my gaming needs. One game the lens made the most dramatic difference was the real time strategy game 'Blitzkrieg'. I played at 1024x768 and the units were microscopic. The lens blew them up so that I was never an issue with unit identification.

XyZspineZyX
11-03-2003, 07:09 PM
stubby wrote:
- I used one for a bit and really does enhance
- gameplay but I had one negative side effect: eye
- strain.
-
- Not sure why but after playing for about ~ an hour,
- my eyes would get really achy and tired. Playing
- w/out it, I didn't experience that problem. The
- biggest thing the lens will do is help with acquring
- targets especially on the ground. If it wasn't for
- my eye strain problem, I would be using for all my
- gaming needs. One game the lens made the most
- dramatic difference was the real time strategy game
- 'Blitzkrieg'. I played at 1024x768 and the units
- were microscopic. The lens blew them up so that I
- was never an issue with unit identification.
-

I wonder if that is a fault of the lens then,maybe an eye specialist would know,cheers
-

XyZspineZyX
11-03-2003, 07:32 PM
OK, you talked me into it - I've ordered one from here:
http://www.projectiontv.co.uk/shop.htm

I can see why eyestrain would occur, given that your eye is perceiving objects as far away, but really the source is inches away. It's going to mess with your focussing muscles.

Still, for eight quid, it's worth a go, isn't it?

XyZspineZyX
11-03-2003, 11:15 PM
mikeyg007 wrote:
- OK, you talked me into it - I've ordered one from

Please keep us posted with your impressions of this lens.

thanks

T_O_A_D
11-04-2003, 12:08 AM
MA61 wrote:
- I just built one a few weeks ago.
- I would tell anyone, that taking the time to make
- this is well worth it!
-
- On my 21 inch monitor the cockpit looks life size
- and the 3-D effect is stunning!One of my friends
- said the feeling of height and depth was making him
- nauseus.It's kind of like an I-Max movie effect.
-
- I've tried the e-dimensional glasses and could never
- get them to work properly with IL-2.Even in games
- that they did work on I think the fresnel lens
- effect is much better even though it's not true 3-D.
-
- I just replaced my cheap lens from staples with a
- slightly larger optical acrylic one from here.



I'm confused I looked at the link the glass is 10-12 inches how does that help on a 21 in monitor. I tried to use reading glasses to blow it up. But it gave me a headache after about an hour of flying.

<Left>
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<Left>
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XyZspineZyX
11-04-2003, 12:26 AM
Don't you guys know that they are made for frying ants...sheesh! Not putting on monitors.

XyZspineZyX
11-04-2003, 12:42 AM
I just ran out to Office Depot and bought the smaller lens to try it out -

Took me about an hour to biuld the housing unit (I painted it flat black to help eliminate reflections)

I also have a 21" Monitor - makes a huge difference - it's like I am looking at a 48" screen!

I ordered a new lens online and will rebuild the unit as soon as it arrives.


For those who are curious - I would also recommend running out to your local office supply store and pick one of these things up - I paid just 7 and some change after tax... I used a monitor box to make the housing and a little tape to hold it together then hot glue to finish it up...

Worth every penny -

Just an FYI - an a 21 inch monitor I have my lens (8 1/2 x 11) just 9 inches from the monitor - and you will need to sit with your face about 6 inches from the lens to get the best view -

Also - don't try to use it for everyday pc stuff - it will cause a headache with that - but for gaming it's wonderful - I made hinge for mine - so when I am done gaming i just flip it up and it rest on top of the monitor.

****WARNING**** - Your wife will laugh at you and call you crazy!!

XyZspineZyX
11-04-2003, 12:44 AM
from what a iread the lenses come out blurry and loose the crispness a monitor has and most people that make them dont use em

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XyZspineZyX
11-04-2003, 01:18 AM
Get the 10x12 lens on my link in my previous post.
I'll tell you it's not much bigger than the cheap one from staples, but that little bit does make a differance.
You can also sit a little farther away with this one.

Also it is crystal clear acrylic and has more grouves per inch than the cheap one.That makes a big differance on the clearity out to the edges.

Buy the cheap one at staples just to see if you'll like the effect,but use the acrylic one to actually build it.

The cheap one will still work fine if your short on cash.

I have no problem with eye strain either, your eyes are actualy focusing out to infinity with this on.

Another cool thing I found is looking at your digital photos with this. It looks like your back where you took them!!I do remove it for regular tasks as someone had stated. I built some hangers from a coat hanger. It makes putting it on or off easy.

I'll tell you for games you will never go back once you build this!

XyZspineZyX
11-04-2003, 03:10 AM
TOAD


the fresnel lense is going to sit in front of the monititor,usually a few inches, up to a foot or so. it does not actually sit righton the monitor

XyZspineZyX
11-04-2003, 05:29 AM
BM357_Disciple wrote:
-
-
- ****WARNING**** - Your wife will laugh at you and
- call you crazy!!
-
-

My Wife already laughs at me when I use coms and my homemade TrackIR reflective ball on stick cap thingy!





http://home.earthlink.net/~aclzkim1/sitebuildercontent/sitebuilderpictures/il2sig2.jpg

T_O_A_D
11-04-2003, 05:29 AM
GAU_8 wrote:
- TOAD
-
-
- the fresnel lense is going to sit in front of the
- monititor,usually a few inches, up to a foot or so.
- it does not actually sit righton the monitor


Ah RGR

Hmm might try it the cheap way first to square out how I would makre TIR work with it. Sounds like it might get in the way of things for TIR

<Left>
131st_VFW_CO_Toad (http://www.geocities.com/vfw_131st/index.htm)

<Left>
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<Center>http://home.mchsi.com/~131st_vfw/Mad_toad.jpg </a>
<font size="1" color="black">After eating an entire bull, a mountain
lion felt so good he started roaring. He kept it up until a
hunter came along and shot him...
The moral: when you're full of bull, keep your mouth shut!</font>
<font size="0" color="#59626B">

XyZspineZyX
11-04-2003, 07:19 AM
USing it for 4 years now. El cheapo lense, but enlarges the screen significantly and adds a 3D effect, plus you focus on infinity.

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XyZspineZyX
11-06-2003, 09:13 PM
OK, the lens arrived today, quick and hassle free, so I can recommend the supplier linked to above. He's got a forum going on and is happy to answer questions and give advice.

First impressions; the image was crisper then I had imagined, really very little loss of quality. It didn't exactly spring into magic 3D, but then there's no reason why it should.

The increased perceived image size was just great. Basically the monitor case and the rest of your room just isn't there any more when you look at the centre of the screen. It's just your cockpit, and Russia flying by. Big, big immersion boost.

And all this is without even using a frame or blackout box on front of the monitor!

Nice bit of kit; don't know whether I'd use it all the time but for fun flying and enjoying the scenery it's a winner. I'm going to enjoy touring Normandy with it :-)

XyZspineZyX
11-06-2003, 09:18 PM
mikeyg007,Thanks alot for your update,glad you enjoy it,i may be tempted myself,Thanks again.

XyZspineZyX
11-06-2003, 09:45 PM
I just use an LCD projector at work. It cost about 5k but holy shiznet its like a giant laptop screen it looks amazing! Now all I need is a real cockpit and I will be set.

XyZspineZyX
11-06-2003, 09:52 PM
Bought one after reading positive reviews.
It was crap so I never used it after the first night.

It does improve the 3D effect and gives more impression of full view but it blurs the image and in the long run is very bad on eyes.

It's ok when gaming but one has to remove it every time one uses the computer for anything else than gaming FB.

Cheap-*** solution to a non-existing problem. Forget it.


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prkl

XyZspineZyX
11-06-2003, 09:57 PM
bastage2003 wrote:
- I just use an LCD projector at work. It cost about
- 5k but holy shiznet its like a giant laptop screen
- it looks amazing! Now all I need is a real cockpit
- and I will be set.
- All i need then is a nice boss to supply me with one LOL
-

XyZspineZyX
11-06-2003, 10:10 PM
Well my dad is the boss but anyone here can use it and alot of the gamers here might take it home on the weekend to watch a dvd or play some games. He says he got it for software demo's but I think he just wanted it for IL2 FB lol. Now he is talking about building a company simulator! See what you have started Oleg. Now our IT budget is going to be used to build a full size sim but I need it for network stuff argh!

XyZspineZyX
11-06-2003, 10:29 PM
Werre_ wrote:
- Bought one after reading positive reviews.
- It was crap so I never used it after the first
- night.
-
Sorry to hear it - bad luck.

- It does improve the 3D effect and gives more
- impression of full view but it blurs the image

Different lenses will give different quality. Did you try it out with a frame to keep it perfectly flat and rigid?

and
- in the long run is very bad on eyes.

I think this could be significant drawback. Not good for long term use, but for a half an hour 'fix' every now and then I'm hoping it will be tolerable

- It's ok when gaming but one has to remove it every
- time one uses the computer for anything else than
- gaming FB.

Yes, I think that's established. With a slide on housing though, it's not so difficult. Don't know where I'll stow it though - on top of the rest of the junk I guess :-)


-
- Cheap-*** solution to a non-existing problem.

Or you could go for a frighteningly expensive solution and get a top quality lens for several hundred dollars/pounds - personally I like cheap!

-Forget it.
-

Well, like a said, for a few notes I think it's worth a flutter. Me, I like it, but it's useful to see that mileage varies widely.


A final bonus - when your eyes really start failing from excessive VDU use, you've got a page magnifier ready to go!

XyZspineZyX
11-06-2003, 11:54 PM
>>>A final bonus - when your eyes really start failing from excessive VDU use, you've got a page magnifier ready to go!

/i/smilies/16x16_smiley-happy.gif /i/smilies/16x16_smiley-happy.gif /i/smilies/16x16_smiley-happy.gif