Here you are the new TY-EW3D Series from Panasonic that claims that its new models are the world lightest 3D glasses available with just 26g in total in its S and M version while the L Version with its 27g seems to be as “heavy” as other models on the market.
But since a good news never comes alone, these new glasses also comes with a new battery offering you up to 3h worth of 3D just after 2 minutes of charge or a total of 25h of 3D if fully charged for 30 minutes.

Nice indeed but still, my next TV will be everything expect… 3D…