| 摘要 |
Laser diode (4) is located in adjustment unit, so relative position of diode and its lens (7) can be set in three spatial directions and setting can be altered. By setting distance of diode to lens, beam profile of emitted light beams and their focus position can be altered. Setting position of diode or of lens orthogonal to optical axis of diode provides precise setting of beam direction. Setting unit is a lens holder (12) which supports lens in movable position, in plane vertical to emitted light beams axis. Laser diode light emitter (4) and its lens (7) are located in lens holder (12) of setting unit located in housing insert (11). Diode (4) is fixed to insert (11) which has holders (15a,b) for lens holder (12). To set relative position of diode and lens, the holder (12) is moved relative to insert (13). Lever (20) is used to vary position of lens (7) in vertical, horizontal to optical axis of diode, by pushing lever into bore (21) of first holder segment (12b). When in suitable position, screw (18) is tightened to fix it in position. |
