公开(公告)号：US20070047887A1

公开(公告)日：2007-03-01

申请号：US11215515

申请日：2005-08-30

Applicant: Martin Selbrede

Inventor： Martin Selbrede

IPC: G02B6/10

CPC classification number: G02B6/0023

Abstract: An optical noise reduction mechanism for reducing undesired frustration of total internal reflected light. Such optical noise may stem from defects in waveguide construction. Such optical noise may also stem from the difference in refractive index between any cladding layers disposed onto the planar waveguide and the refractive index of the medium (e.g., air) between the light sources and the light insertion surface of the planar waveguide. By interposing a material of appropriate refractive index, either as a thin layer onto the light insertion surface of the waveguide or filling the space between the waveguide and the light source, the planar waveguide becomes more tolerant of geometry errors and cladding layer properties because a safe operating area is established between the unadjusted critical angle of the system and the actual range of ray angles allowed admittance into the waveguide.

Abstract translation: 一种用于减少全内反射光的不希望的挫折的光学降噪机构。 这种光学噪声可能源于波导结构的缺陷。 这种光学噪声也可能源自设置在平面波导上的任何包覆层之间的折射率与光源与平面波导的光插入表面之间的介质（例如空气）的折射率之差。 通过将适当的折射率的材料作为薄层涂覆在波导的光插入表面上或填充波导和光源之间的空间，平面波导变得更容忍几何误差和包层性质，因为安全 在系统的未调整的临界角和允许入射到波导中的射线角的实际范围之间建立操作区域。