I've always thought of my ears as heat sinks. Even in moderately cool temperatures, they can easily get painfully cold. I suspect they are thermally connected to specific areas of my brain and over cool those areas.
Given that, I would welcome an ear heater. Perhaps they could even add some improvements such as a heat pipe people like me can stick in their ear.
On the other hand, I don't wear glasses, so never mind.
If you wear glasses as I do, there are times when having heated eyewear would indeed be useful. In winter time, your classes can get very cold and instantly fog when they encounter warm moist air. Depending upon what you are doing, this could introduce a element of confusion that could have serious consequences.
So I would not laugh too hard at this one, it actually addresses a need, albeit a low probability one.
Just my opinion.
Well, just yesterday I had to "rescue" my five-year old daughter who had fallen face down in the snow and had her glasses totally covered in snow. Given the price of kids speciality glasses I'd happily fork up an additional $50-100 USD for this feature.
Well stated - there's nothing more annoying than heading outside to get the mail in the morning, and having to wait 60 seconds for the eye glasses to clear up so you can see where you're walking when you come back into your house. Or, if you store your sunglasses in your cold car, the moment you put them on to back out of the driveway, instant fog. It takes a good 30-60 seconds for the heat from your head to clear up the lenses when you're wearing contacts and want to wear sunglasses. The application is long overdue in my opinion.
Likely, only those with expendable income might be able to afford these. Electronics comes at a cost as we all know. ; )
Indeed, the invention might have its use case. In cold climates, the heating element in the lens frame (crucially important components not shown in the excerpt) will supposedly keep the glasses from fogging up.
My issue is that item 28. What's it for? What signal is the "amplifier" amplifying? Presumably the cell 24 is providing the bias voltage for the op-amp, but to what end? Anyone?
Anyone who tries to ski (or clear a snowy driveway) while wearing glasses and a ski mask quickly discovers the problem of fogging glasses. A working glasses heater would indeed be very helpful. If the patent has errors, that is no big deal; it is easy enough for a manufacturer to correctly connect the power wires.
It is a very interesting patent application. I'm not sure whether there is any safety concern given the heated elements so close to the eyes.
Just a bit side track, in cold weather, feet, hands, nose and ears will be cold first. A helm to generate heat to surround your head might keep you warm. A simple beanie will certainly come handy. In extreme weather, professional climbers wear mask. ;)
Uhhhh! Has no one bothered to estimate how much energy and at what rate it might be needed and compare it with a cell/battery that might actually fit within the confines of a practical glasses frame? I guess if you have a power amplifier, you don't need much of a battery. [;-D
The very first thing that I noticed was that the power source is so small as to be unable to provide a useful amount of heat. After that, the only needed control is an on/off switch, with the design size of heater setting the maximum heating level. So now the amplifier and thermal controlling system can be eliminated and the whole thing gets quite a bit simpler. But that still leaves the power source as a large problem.
There is an old joke here told about the "stylish" dudes who always wear their sunglasses pushed up on their foreheads. When asked about , ah, certain body part temperature differentials, they point up and say "it's the solar collectors on the roof". Maybe you could convert the light blocked by sunglasses into electricity to charge your phone...there, now that idea is public domain and can't be patented.
The key issue in a patent is not the figure or description, which are just examples, but the claims.
If you look at the claims on this patent, they (to my non-attorney eyes) seem pretty reasonable for what they claim -- which is NOT heated lenses, but a heated frame.