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Electronic Sunglasses...Does it Exist?

How about some sort of LCD technology used in sunglasses to create a wide range of tint?. Maybe call it electronic sunglasses. ( I know there's those non-electronic self tinting sunglasses but I'm guessing they're not perfect.)

Another cool feature of electronic sunglasses would be fast tinting response.

Let's say you're driving in bright sunshine and then have to drive into a dark parkade.. The sunglasses will go clear. Maybe with an even faster response...I can do arc welding :)

Here in BC...the sun can be very intense.. I wear dark tinted sunglasses on every sunny day. One time I forgot my sunglasses and almost couldn't drive because my eyes were burning.

By the way... todays predicted UV index is 7 for parts of BC. D from BC

Reply to
D from BC
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It's been done - as you noted, one possible application for something like this would be in welding, so take a look at:

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This sort of product, though, and similar industrial applications have been about the only places where it's caught on. Main problems are that you need a light sensor, a control circuit for the whole thing (admittedly fairly simple), and a power source. Quite a bit of cost for something as simple as sunglasses, and hard to hide all that bulk in something that most people would consider stylish enough to wear. And how many would bother, just to have their glasses go clear in tunnels and such? Ordinary polarized sunglasses do the basic job quite well, for a lot less, and no batteries to change!

Bob M.

Reply to
Bob Myers

I think there's a significant amount of consumers addicted to cool gizmo's and gadgets that would buy electronic sunglasses. If it's pricy, it could become a posh item. (For those unhappy with pricey Rayban's .. :) )

About bulk.. I guess no solar panels for power :) Perhaps a coin cell on each side (temple area) on the ear piece might be ok.

Another thought..and possible selling point.

Maybe the military, police and unfortunately the criminals too might be interested in electronic sunglasses to blank out gun fire flash in dark conditions. Well.. this is something I've picked up from too many action movies so I really don't know if gun fire flash in dark conditions causes some visual impairment.

D from BC

Reply to
D from BC

It has been done in military aircraft face shields to protect aviators from nuclear weapon effects.

Reply to
Richard Henry

I saw your article is very good, I like it very much. I will continue to pay attention to your article, the following are the points I hope that I have similar concerns.

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Reply to
baby's happy

i like the idea, especially in fall when the trees are dropping their foliage and the differential light is always making change as you pass the blocks of trees and roadway cover.

but, if you cant remember to take your regular shades along, you wont have much luck remembering these either!

get a cheap pair and stuff them above your visor for emergencies, get an Innuit wooden slit souveneir pair to hang on your mirror, babes like kool stuff.

just wait until you are 70 years old and your eyes really start going to hell! then you willl have something worthwhile to complain about!

Reply to
HapticZ

On a sunny day (Fri, 24 Aug 2007 02:35:58 GMT) it happened D from BC wrote in :

I have a couple of Asus 3D LCD shutter glasses. Those are really dark when in 'off' mode. Can de driven with about 9V DC. In stereo 3D mode when one is off the other is on. Has a normal 3 pole audio type connector. Maybe it is too dark, and it is kinda big on your head. But add a photocell, and bingo. You can wear normal sunglasses on these, enough space.

Reply to
Jan Panteltje

On a sunny day (Thu, 23 Aug 2007 21:02:39 -0600) it happened "Bob Myers" wrote in :

Na, this is what I have:

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Reply to
Jan Panteltje

It has also been looked at as a DRM method for optical discs.

Reply to
ChairmanOfTheBored

I have a welding helmet that darkens either automatically or with an up/down control. It is LCD based.

Best regards, Spehro Pefhany

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Reply to
Spehro Pefhany

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