| 摘要 |
A light source device (1) has a light source (1a), a dichroic mirror (1h) that reflects S-polarized light among light from the light source (1a), a condensing lens group (1i, 1k) that condenses the light reflected from the dichroic mirror (1h), a phosphor unit (11) capable of moving so that the light from the condensing lens group (1i, 1k) is emitted onto a phosphor region and a reflective region, in that order, and a 1/4 wavelength plate (1j) provided between the lenses of the condensing lens group (1i, 1k). |
