PURPOSE: To gather beams from many respective lasers by turning laser beams transmitted through optical fibers in use to collimated beams whose respective axial lines are parallel to each other by a collimating lens and arranging them to be projected to a condensing lens.
CONSTITUTION: On the input side of a unit 10, optical fiber assemblies are housed at respective positions with the mutual intervals of 120° on a circumference. The beams radiated from the respective optical fiber assemblies 11-13 are collimated by the respective collimating lenses 14-16 arranged with the intervals of 120° with each other on the circumference and paired with the respective optical fiber assemblies 11-13. Thus, the mutually parallel beams emitted from the collimating lenses 14 16 are converged to one common point 14 by one condensing lens 17.
KIISU UIZUNERU
JIEIMUSU KENISU RAITO
| JPS53136848A | 1978-11-29 | |||
| JP54036438B | ||||
| JP52170541B |