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Super Specs - 3D and much more

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The title for this Instructable was really hard to pick because these Super Specs have so many uses.
So many uses? Let’s list a few:

* 3D stereo glasses that will work on any screen that uses passive split polarity for 3D regardless of brand.
   (Will not work for electronic switched 3D stereo.)
* 3D stereo glasses that work with any color code of anaglyph (common type of color coded stereo image).
* Preview a scene so you can see how it will look when you later photograph with a filter.
* Magnifying glasses with a whole range of magnifications.
* Sunglasses with any shade of darkness or color you like.
* Exploit the extended sensitivity of human vision to see infra red light.
* Protect your eyes from UV or just about any wavelength of light.
* Have different things happening with each eye.

All this and more from one pair of glasses by simply screwing in your favorite filters in a few seconds. Moreover you can make a pair of these quite cheaply in about an hour if you already have the parts.

OK, OK there is a little catch; to achieve all this you are going to have to get various camera filters to use in your Super Specs. I can guess you are thinking “Oh Oh! This is going to be expensive.” But there is a way to get a whole range of cool camera filters that are very cheap and will still work on your camera too: get them on eBay and try clicking that box so you can search worldwide; what you need are the Chinese suppliers. I have bought polarizers for as little as $3 and you can often get bundles of mixed camera filters for less than $20 all brand new.
Having said that I guess it will be no surprise that I bought everything for this project on eBay. Even though I did the purchasing some months ago, I have done fresh search to get prices for the parts list (including postage). Your mileage will vary depending on patience and luck finding bargains.
To attach the filters to the lenses so that they can be easily unscrewed and changed I glued two lens adapter rings into the glasses frames.
(Please vote for me, I would really like to win the Epilog laser cutter. Thanks)
 
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Light_Lab (author) 1 year ago
The trick is getting some "dark" with more pure NIR than the traces of visible light. The best accessible source of NIR is the Sun, hence the filters are required to block the visible light and just leave the NIR.
In a moderately dark room most people can see the NIR LEDs around a surveillance camera after the eyes adjust, and even the IR LED on a TV remote in a really dark room. Though you should keep a respectful distance and short exposure when doing these experiments, I have heard there is a risk of eye damage if you are not careful with some NIR sources. Keep in mind your pupil opens up fully in the dark and your eye can be easily damaged in that state.
nvnusman1 year ago
So maybe modify the IR idea to the kind of "goggles" that block light from the side; I used to have a pair of war-surplus pilot goggles that would have been perfect (See "Road Warrior.") Or maybe get black-framed surfer/diver goggles and colored IR gels? Kind of intrigued by the idea that dark-aclimatization might enable IR sensitivity ... Since there is no visible light, why would I need filters? ("I See IR People!) ;}
santy222 years ago
Haha, this is inventive. I'd love to see some steampunk brass Super Specs.
lschwartz3 years ago
I first encountered pseudo-3D glasses at a Smithsonian Institution presentation. Their glasses were cardboard with a tinted, non-polarized, filter over one lens. The 3D effect was explained as a result of the brain interpreting darkness as an additional indication of depth. I've used one side of broken sunglass for over 20 years to achieve the effect. Any movie theater showing 3D movies based on polarized images will freely give you a pair of their glasses. Just punch out one side and PRESTO! For the effect to really work, there should be some movement in the screen image. If your particular glasses dim the TV too much, just increase the TV's brightness.
It's known as the Pulfrich Effect ref http://en.wikipedia.org/wiki/Pulfrich_effect and is usually shown by using a pendulum swinging side to side. When a dark filter is placed over one eye, the pendulum bob appears to swing in a circle. I'll have to try it with TV!
Light_Lab (author) 3 years ago
I guess I should emphasize Super Specs do provide real 3D information when it the 2 channels are separated optically eg. by different polarization planes or by different color tints. Super Specs can be set up to decode 3D for all of these.
Usually an optical device will not suffice when the two channels require electrically switched elements in the glasses. So if your 3D TV uses glasses that have some sort of electrical power then it is most unlikely any passive filter will work for you.
stringerR3 years ago
I sometimes use elastic support for my normal specs so they don't slip down my nose.
The super glasses is a great idea and I think they would be comfortable for a long time with my type of support
Light_Lab (author)  stringerR3 years ago
Yes those are my thoughts too; I have aspirations of experimenting with heavier lenses and stacks of filters. I have one of those rubber straps on order. I found them on eBay as "Sunglass Eyeglasses Glasses Sports Band Strap Retainer".
killbox3 years ago
Note stacking most CPL filters wont get you the total blackout stacking non circular polarizer filters will. so if you want to "dial-A-dark" pickup 2 CPL's and 2 regular polarized filters (or another trick is to get 4 CPLs and dissasemble 2 and flip the glass over)

learned alot about all that when was making steampunk goggles. http://www.flickr.com/photos/killbox/4475363810/
Light_Lab (author)  killbox3 years ago
I have only had experience with the low cost CPLs I get from China and I can assure you that even those will completely black out an LCD monitor. Nevertheless the CPL's I have seen do tend to tint (slightly color the image). Hence my comment that I think linear polarizers are better for 3D; they also block more light. I regularly use a pair of crossed linear polarisers as a variable ND filter and they out perform CPL's by about a factor of 2. The good thing about Super Specs is that you can try all these experiments easily. Just be careful to buy light aluminum framed filters if you start stacking as the whole thing can get very heavy. (I have a sports strap coming for my specs.)
Yah, even cheap cpl's and a normal polarized layer/lens/screen will work, but if the light is going the same direction through 2 same cpl's the 2nd layer causes a roll in the polarized light which the 2nd filter lets through.. (flipping the glass over in the front lens or using a non CPL P filter, works.

odd effect of polarized filters CPL or not, is if you try and see your own eyes in a mirror though your glasses the lenses will look totally dark. as the light from behind the lens is filtered then hits the mirror and is filtered coming back.
snafell3 years ago
Hi,
What type of glue did you use?
Light_Lab (author)  snafell3 years ago
5 Minute Araldite (mentioned in the parts list)
http://en.wikipedia.org/wiki/Araldite
Araldite is a 2 part epoxy glue that is OK for plastic and metals among other things. Other strong adhesives would be OK provided they work with plastic and aluminum.
Thanks,
maybe I should speed read less
These look like a great addition to my lads night in attire for watching footy on the 3D TV, when I can finally afford one (or a clever instructabler makes one).
I think I'd have to go one step further and pair these with a leather flying helmet fitted with earphones. The googles could be altered to accept an elasticated strap.
Very clear instructable too.
Light_Lab (author)  Nemesis2010773 years ago
You can get glasses straps that slide on each end of the arms and hook behind your head like goggles. I have one somewhere; I was trying to find it to add to the images. Very handy for these specs if you want to screw in heavy lenses or multiple filters.
Light_Lab (author)  Light_Lab3 years ago
Update - Got tired of searching for my glasses strap - found they were very cheap on eBay from Hong Kong $2.65. Search for things like:
"Sunglass Eyeglasses Glasses Sports Band Strap Retainer"
I have one coming so I can use heavier filters and lenses.
srilyk3 years ago
I'm going to make these steampunk-style.
ilpug3 years ago
man, i would just wear these for sunglasses. if they work.
Light_Lab (author)  ilpug3 years ago
Just screw in some neutral density filters the shade you want and they will work as sunglasses. In fact with a range of ND filters you can set the shade to suit the time of day
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