| 摘要 |
As shown in Fig. 1, an optical device 10 comprises an input optical member 11, in which a plurality of optical fibers 14 are arranged parallel to each other and integrally formed, having an entrance surface 11a and an exit surface 11b which form an angle of 31 DEG and a right angle, respectively, with the optical axis; and an output optical member 12, in which a plurality of optical fibers are similarly arranged parallel to each other and integrally formed, having an entrance surface 12a and an exit surface 12b which form an angle of 31 DEG and a right angle, respectively, with the optical axis; wherein the exit surface 11b of the input optical member 11 and the entrance surface 12a of the output optical member 12 are fixed in contact with each other. Here, while the exit surface 11b of the input optical member 11 is ground to yield an optically specular surface, the whole entrance surface 12a of the output optical member 12 is roughly ground to yield a rough surface having a center-line average roughness of 0.49 mu m. <IMAGE> |
