Patent ID: 7009748
Filing Date: 2006-03-07
Classification: G02B

Abstract:
1. A printer comprising: a light source providing a beam of light; a first integrally formed device comprising a reflective surface portion positioned to intercept said beam of light, a support portion, and a first pair of torsional hinges attached to said reflective surface portion and extending to said support portion for resonant pivoting about a first axis such that light reflected from said reflective surface defines a first path; a first drive circuit for generating vibrational energy in said support portion, said vibrational energy inertially coupled through said first pair of torsional hinges to said reflective surface portion to cause resonant pivoting of said first device about said first axis to provide a resonant beam sweep; a second device for rotating about a second axis such that light from said reflective surface moves in a second direction substantially orthogonal to said first path; a moving photosensitive medium having a first dimension and a second dimension orthogonal to said first dimension, and located to receive an image of said reflected light beam as said beam sweeps across said medium along said first dimension, said photosensitive medium moving in a direction along said second dimension such that subsequent traces are spaced apart; and a second drive circuit for rotating said second device about said second axis such that light traces are received on said moving photosensitive medium along a line substantially orthogonal to the movement of said photosensitive medium.