Importance

Loading Importance Indicators...

Abstract

A light source device is provided that can achieve a reduction in size with respect to the direction of irradiation of light to a fluorescent unit as well as a decrease in cost. The light source device (1) is equipped with: light source main body (2), first optical element (3), fluorescent unit (4), and second optical element (5). The first optical element (3) includes first area (13) and second area (14). In response to irradiation of light of a first wavelength that has passed through first area (13), fluorescent unit (4) emits light of a second wavelength toward first area (13). Light of the first wavelength that is reflected at second area (14) is irradiated to second optical element (5). The second optical element (5) emits light of the first wavelength that was irradiated into second optical element (5) in reflection direction (D). The emission position of light of the first wavelength that is emitted from second optical element (5) is located outside virtual space (V1) that extends in the direction opposite to reflection direction (D) from second area (14).

Loading the Abstract Image...

First Claim