Assertion: sagittal ray | /r/CapableOf | propagate in the plane
Facets:
Source sentences:
text: A sagittal ray or transverse ray from an off-axis object point is a ray that propagates in the plane that is perpendicular to the meridional plane and contains the principal ray.  
text: A sagittal ray or transverse ray from an off-axis object point is a ray that propagates in the plane that is perpendicular to the meridional plane and contains the principal ray.