| 摘要 |
PURPOSE: To provide a polarized light converting device which has a high light utilization rate and small luminance shading. CONSTITUTION: Indefinite polarized light 6 from a light source is split by a PBS 3 into a P1-polarized wave 7 and an S1-polarized light wave 8, which is reflected by the PBS 3, transmitted through a λ/4 plate 4, and reflected by a total reflecting mirror 5 to the opposite direction from the traveling direction. At this time, the S1-polarized light wave 8 is polarized and converted by 90 deg. into a 3rd linear polarized light (P2-polarized wave 9) having the same polarization direction with the P1-polarized light wave 7, transmitted through the PBS 3, and projected. The P1-polarized light wave 7 which is transmitted through the PBS 3, on the other hand, is reflected by a total reflecting mirror 10 to the same direction as the P2-polarized light wave 9 and projected. Plural polarized light converting elements 2 (small unit) having a polarized light converting function like this are arrayed in parallel to constitute the polarized light converting device 1. |
