Very nice crafted Arm Lamp made of oak wood
http://tweetmeme.com/story/252321352/brave-new-world-lamp-lovz es-its-bamboo
wooden lamps
Lamps with povoting arm in a vertical plane
Tizio desk lamp designed by Richard Sapper
artemide
desklamp
table lamp
http://www.artemide.com/
Two arms with two counterweights
A lamp type like the Tizio works like this.
A balancing arm (the forearm) has on one side of an axis a small counterweight and on the other side a lamp cap.
These parts are lifted by a second bigger balancing arm (the upper arm) that has on the other side of a second axis a heavier counterweight.
The two axes have a different angle, and this has some advantages.
Lamp-cap x fore-Arm = Arm x Small weight (Lamp-cap + Small weight) x upper-arm = Arm x Big weight.
Lamps with povoting arm
