| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a Bessel beam generator which facilitates an assembly adjustment work, is compact and is easy to handle. <P>SOLUTION: The Bessel beam generator includes: a light source; an optical fiber for transmitting light emitted from the light source; a lens mounted on the emission end of the optical fiber; a Bessel beam generating element for generating a Bessel beam by the light emitted from the lens; and a ferrule in which the lens is inserted into the incident end thereof and the Bessel beam generating element is inserted into the emission end thereof. <P>COPYRIGHT: (C)2012,JPO&INPIT |
