| 摘要 |
The present invention provides an optical apparatus, which restrains the cling of the foreign body at a low cost, furthermore avoids the heat bond of the optical fiber in the high-capacity density range, and increases the reliability of the illuminating source. The optical fiber (1) is provided with an illuminating source (LD); a collection lens (3), which gathers the light beams (B) sent from the illuminating source (LD); a dielectric block (4), which is arranged at the optical path of the light beam (B) which has passed through the collection lens (3); the optical fiber (30), which is arranged with the mode that the light beam (B) passed through the dielectric block (4) inject by the core (5) of the injected end plane (30A). At least the injected end plate (5a) of the core (5) is located at the position of the emission end plane (4b) which is far from the dielectric block (4), with pressing the injected end plane (5a) part of the surrounding core (5) in the injected end plane (30A) of the optical fiber (30) to the dielectric block (4), it forms the hermetic room (SA) of the injected end plane (5a) in the surrounding core (5). |
