Now that I had a design I needed to come up with a mechanism that would allow the lamp to raise and lift. The main thing I was considering was user ease. Ultimately I thought the simplest thing from a user standpoint would be a scissor jointed lift, the lamp would stay upright by the friction of the joints' bolts against the wood and the user would only have to pull up or push down to adjust the lamp.  I prototyped using chipboard to get a feel of how the joints would work then moved onto wood.