Patent ID: 7477379

Claim:
An analysis apparatus comprising: a laser light transmission optical fiber which transmits laser light; an optical system unit which includes: (a) shaping means for shaping the laser light into a predetermined shape, (b) distribution means for allowing the laser light having the predetermined shape transmitted through the laser light transmission optical fiber to pass through and reflect fluorescence emitted as a result of the irradiation of the laser light onto an analysis object, and (c) condensing means for: (i) condensing the laser light shaped into the predetermined shape and passing through the distribution means and irradiating the condensed laser light onto the analysis object, and (ii) condensing the fluorescence from the analysis object and guiding the condensed fluorescence to the distribution means, in which the distribution means is provided between the condensing means and the shaping means; a fluorescence transmission optical fiber which transmits the fluorescence reflected by the distribution means; and analysis means for determining quantity of elements included in the analysis object on the basis of the fluorescence transmitted through the fluorescence transmission optical fiber; wherein the shaping means shapes the laser light into an annulus.