| 摘要 |
PURPOSE:To provide the optical connecting element which has a high light utilization rate and small wavelength dependency of its converting characteristics. CONSTITUTION:The light emitted by a light emitting element 20 is propagated in a transparent substrate 51, deflected by a beam deflecting element 40, and propagated in a transparent substrate 50 to impinge on a refracting lens 10. Then the light is propagated in a transparent substrate 52, deflected by a beam deflecting element 41, and propagated in a transparent substrate 53 to impinge on a light receiving element 30. Here, the refracting lens 10 is given such curvature that image planes in the meridian plane and sagittal plane are aligned with each other. Consequently, a spot having a small diameter is formed because astigmatism is eliminated by aligning the image points in the meridian plane and sagittal plane with each other. |
