Patent ID: 9188709
Filing Date: 2015-11-17
Classification: G02B,G03B

Abstract:
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.