This from Which? April 2011...
New Samsung 3D glasses
Samsung Silhouette 3D glasses
Samsung has redesigned its standard 3D glasses for 2011 3D TVs. The pair pictured above are co-designed with glasses manufacturer, Silhouette, and available as an optional extra
It’s not just the panel that has been given a makeover, the 3D glasses have been taken back to the drawing board too. The result is nothing short of a stunning transformation. Gone are 2010’s awkward and uncomfortable active shutters (though Samsung’s were perhaps the best of a bad bunch last year), replaced by a pair of flexible, lightweight and comfortable specs.
The electronics have been moved to the rear of the glasses, allowing the weight to be redistributed around the head instead of sitting uncomfortably on the nose. Charging is done via a mini-USB connection with the TV, or alternatively using an optional wireless docking cradle that can charge four pairs of glasses and the remote.
However, the new design isn’t going to delight anyone who picked up a first-generation Samsung 3D TV. The new glasses will not work with its older 3D TVs. They connect to the TV via Bluetooth, a sturdier system less prone to interference than the infra-red standard used last year, but also only compatible with the new 2011 TVs. Samsung, at least, say they will still produce glasses for its older TVs.