| 摘要 |
<p>A light pattern generating system based on a micromechanical light modulator (50) is disclosed whereby the outputs of two staggered rows of modulator mirrors are optically combined to produce a single line pixel pattern. The preferred embodiment contains birefringent film (28) deposited onto one row (25) of two rows of modulator mirrors (20,25) which rotates the incident beam (41) polarization by 90 degrees. The reflections off that row of mirrors (25) and off the unaltered mirror row (20) are then optically combined by a birefringent optical element (36) into a single line pixel pattern Another embodiment features splitting the linearly polarized incident light beam into two orthogonally polarized beams and by utilizing a birefringent beamsplitter, illuminating two rows of mirrors and separately, and then optically re-combining their outputs with either conventional mirrors and beamsplitters, or a birefringent optical element. An additional embodiment shows splitting a dual-wavelength incident light beam into two beams and) with each having a different wavelength, by utilizing dichroic beamsplitter, then illuminating two rows of mirrors and separately, and optically re-combining their outputs with either conventional mirrors and beamsplitters, or a dichroic mirror. <IMAGE></p> |
