LIGHT EMITTING DEVICE, ILLUMINATION DEVICE, AND PROJECTOR

摘要

PROBLEM TO BE SOLVED: To provide a light emitting device which can achieve uniform light intensity in an illuminated region.SOLUTION: In a light emitting device 1000, a light emitting element 100 emits a first light and a second light that enter a first rod integrator 20, and a third light and a forth light that enter a second rod integrator 30. The first rod integrator 20 comprises: a first incidence surface 22 on which the first light and the second light enter; a first bent section 23 which changes the propagation direction of the first light and the second light; and a first emission surface 24 which emits light comprising a mixture of the first light and the second light toward a predetermined region. The second rod integrator comprises: a second incidence surface 32 on which the third light and the forth light enter; a second bent section 33 which changes the propagation direction of the third light and the forth light; and a second emission surface 34 which emits light comprising a mixture of the third light and the forth light toward a predetermined region.