12 results about "Guided ray" patented technology

A guided ray (also bound ray or trapped ray) is a ray of light in a multi-mode optical fiber, which is confined by the core. For step index fiber, light entering the fiber will be guided if it falls within the acceptance cone of the fiber, that is if it makes an angle with the fiber axis that is less than the acceptance angle, θ<arcsin(√(nₒ²-nc²)) , where θ is the angle the ray makes with the fiber axis, before entering the fiber, nₒ is the refractive index along the central axis (core) of the fiber, and nc is the refractive index of the cladding.