Optical multiplexing apparatus and projector

摘要

An object of the present invention is to provide an optical multiplexing apparatus and a projector that keep an optical system small, and easily adjust a number of light source units. The optical multiplexing apparatus has: a light source section that uses light source units to emit collimated beams; a first lens portion that converges the collimated beams which enter at different incident angles from each other to define converging positions; and a second lens portion that has focal points that correspond to the converging positions, respectively, wherein the first and second lens portions form an optical reduction system, and an optical axis of the second lens portion, which is directed to the corresponding focal point to one of the converging positions, extends along another optical axis of the second lens position, which is directed to the corresponding focal point to another of the converging positions.

主权项

1. An optical multiplexing apparatus, comprising:
a light source section including first and second light source units that emit collimated beams; a first lens portion which focuses each of the collimated beams to define a focal plane including a respective convergent point; and a second lens portion situated between the first lens portion and the focal plane and having plural focal points, each focal point of the second lens portion corresponding in position to a respective one of the convergent points formed by the first lens portion, wherein the first and second lens portions form an optical reduction system, wherein an optical axis of the second lens portion, which is directed to the corresponding focal point of one of the convergent points, extends along another optical axis of the second lens portion, which is directed to the corresponding focal point of another of the convergent points, and wherein the first light source unit emits one of the collimated beams toward the first lens portion, and the second light source unit emits another of the collimated beams toward the first lens portion at an incident angle different from the one of the collimated beams.