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LIGHT SOURCE UNIT ABLE TO EMIT LIGHT WHICH IS LESS INFLUENCED BY INTERFERENCE FRINGES
LIGHT SOURCE UNIT ABLE TO EMIT LIGHT WHICH IS LESS INFLUENCED BY INTERFERENCE FRINGES
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机译:能够发出干扰条纹较少影响的光源的光源单元
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摘要
The invention is characterized in that (1) lens characteristics of a microlens array are made to differ between shining areas on to which laser beams are shone, (2) laser elements are disposed differently so that light distributions thereof are made to differ, or (3) the “collecting degrees” of laser beams by collimator lenses of the laser elements are made to differ from each other or one another, so that interference fringes generated by the laser beams are made less conspicuous.
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