Optical source position adjustment device

A light-source position adjustment device for aligning, with a predetermined standard direction, a direction in which a light source emits light and for positioning a light emission point on a predetermined standard position, the device comprising:

• a magnification lens system for magnifying a light bundle emitted from a light source;
• first optical path setting means for guiding a light bundle magnified at the magnification lens system toward first and second optical paths;
• angular shift measuring means disposed in the first optical path and for detecting emission angle intensity distribution of the light source;
• position shift measuring means disposed in the second optical path and for detecting a magnification image of the light source produced on an image plane of the magnification lens;
• a multi-axes stage unit including means for producing parallel movement and swinging movement of the light source;
• stage drive means for transmitting a drive signal to the multi-axes stage unit;
• and
• control means for determining, based on an output signal from the angular shift measuring means, an amount that a direction in which the light source emits light shifts from the predetermined standard direction and for determining, based on an output signal from the position shift measuring means, an amount that a light-generating point of the light source is displaced from the standard position, the control means outputting control signals to the stage drive means.