| 摘要 |
PURPOSE:To make possible exact positioning by providing the 1st adjusting means for attaching finely axially adjustably a holder to a cylindrical body and the 2nd adjusting means for attaching finely adjustably the holder to the cylindrical body in the direction perpendicular to the axis. CONSTITUTION:The inside cylinder 34 is inserted via a compression coil spring 36 into the cylindrical body 26. An LED chip 60 is disposed so as to be imaged exactly to the emulsion surface of a photosensitive material 16 by screwing a tap screw 38 to a female screw 32 and adjusting the axial position of the chip and is fixed by a stop screw 39. The chip 60 is so adjusted as to be exactly positioned on the axial center of an exposing lens 22 by loosening slightly a tap screw 48 androtating plural pieces of adjusting screws 54 by means of a screw driver, etc. The screw 48 is again screwed down to fix the light source holder 42 after the adjustment. Such positional adjustment in the axial direction and the direction perpendicular to the axis is repeated plural times according to need. A suitable adhesive agent is poured to fix the inside cylinder 34 and the cylindrical body 26. The screw 48 and the inside cylinder 34 are similarly fixed and the screw 54 and the cylinder 34 are fixed as well. |
