Patent ID: 7287862
Filing Date: 2007-10-30
Classification: G02B,G03B

Abstract:
1. An image projection module for projecting a two-dimensional image extending along mutually orthogonal longitudinal and transverse directions at a projection plane, comprising: a) a support; b) an array of non-laser light emitting diodes extending along the longitudinal direction on the support and operative, when energized, for emitting respective uncollimated light beams diverging along the longitudinal and transverse directions; c) an optical assembly on the support for imaging the array on the projection plane as an image line extending along the longitudinal direction by focusing the uncollimated beams along the longitudinal direction and by collimating the uncollimated beams along the transverse direction; d) a scanner on the support for sweeping the image line along the transverse direction, the image line having a number of pixels; and e) a controller operatively connected to the array and the scanner, for energizing selected ones of the diodes and causing selected ones of the pixels to be illuminated, and rendered visible, by the selected ones of the diodes to produce the two-dimensional image.