Illuminator and projector

摘要

An illuminator includes a (solid-state light source array) including a plurality of solid-state light sources, a light collecting system that collects light from the solid-state light source group at a predetermined light collection position, a collimator system disposed on the opposite side of the light collection position to the light collecting system and substantially parallelizing light from the light collecting system, and an integrator system that homogenizes the in-plane light intensity distribution of light from the collimator system. The illuminator further includes a transmissive diffusing unit that is disposed in the vicinity of the light collection position and transmits the light from the light collecting system while diffusing the light from the light collecting system.

主权项

1. An illuminator comprising:
a solid-state light source group including an array of solid-state light sources, the array defining a light source area; a light collecting system that focuses light from the solid-state light source group at a predetermined light collection position; a collimator system disposed on the opposite side of the light collection position to the light collecting system, the collimator system including a lens, the predetermined light collection position where the light from the solid-state light source group is focused being located between the light collecting system and the collimator system; a transmissive diffusing unit disposed in the vicinity of the light collection position, the transmissive diffusing unit having a light receiving area that receives light from the light collecting system and transmitting the light from the light collecting system while diffusing the light, the light receiving area being smaller than the light source area, the light from the solid-state light source group being incident on the transmissive diffusing unit in a form of dappled light; and a lens integrator system on which light having passed through the transmissive diffusing unit is incident.