| 摘要 |
PROBLEM TO BE SOLVED: To provide an optics system for coupling a plurality of diodes and laser beams, which can be made more compact and improved in optical axis stability. SOLUTION: The plurality of diodes are coupled by a prism as shown by figure 2, whereby beams are formed and collimated by using one shared lens. Therefore, using the one shared lens makes the optics system compact and its structure difficult to cause an optical axis misalignment to occur therein. Furthermore, when coupling the plurality of diodes and laser beams having different beam characteristics to form one beam, a "lens type prism" is introduced, which has lens faces capable of preliminarily compensating each beam shape as shown by figure 3, thereby forming and collimating respective beams being coupled, in combination with the above shared lens, such that their shapes and divergent angles are identical to each other. COPYRIGHT: (C)2006,JPO&NCIPI
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