| 摘要 |
PROBLEM TO BE SOLVED: To provide a light combining system.SOLUTION: The light combining system comprises prisms including respective entrance surfaces allowed to receive respective on-state light from respective digital micromirror devices (DMD). At least one interface is allowed to receive respective on-state light from the prisms. At the at least one interface, a mirror is allowed to transmit first on-state light through a second prism and reflect second on-state light aligned with the first on-state light returned through the second prism. Respective angles formed by a normal of the mirror and each of the first on-state light and the second on-state light is less than a total internal reflection angle. A combination of respective back working distances of the DMDs and shapes of each of the prisms is chosen such that respective illumination paths and respective reflection paths of each of DMDs do not interfere with each other. |
