초록 ▼

A luminescent fiber marker and method comprised of a linear coaxial lens having an elongated thin cylindrical phosphorescent layer and a pair of colinear and coaxial optical waveguides sandwiching the thin cylindrical phosphorescent layer therebetween so that light impinging on said cylindrical phos

A luminescent fiber marker and method comprised of a linear coaxial lens having an elongated thin cylindrical phosphorescent layer and a pair of colinear and coaxial optical waveguides sandwiching the thin cylindrical phosphorescent layer therebetween so that light impinging on said cylindrical phosphorescent layer along the length thereof is induced to store said radiation energy in said light and emit radiation of a different wave length from the light impinging on said cylindrical phosphorescent layer into both of said optical waveguides. Each of said optical waveguides has a fluorescent material dispersed therein for absorbing the emitted radiation from said phosphorescent layer reemitting the absorbed radiation to effect an internal scatter of radiation in each of said waveguides to permit trapping within the waveguide cores. At least one of the ends of the pair of colinear and coaxial waveguides is adapted to emit said light of a different wave length, the ends may be arranged in various patterns and/or have diffusers or mirrors associated therewith.

대표청구항 ▼

A device for concentrating radiant energy comprising, a plurality of first optical waveguide elements, each of said first waveguide elements having a body portion extending between a pair of ends, a first external surface on said body portion exposed to receive incident radiation between the end of

A device for concentrating radiant energy comprising, a plurality of first optical waveguide elements, each of said first waveguide elements having a body portion extending between a pair of ends, a first external surface on said body portion exposed to receive incident radiation between the end of said body portion and a second external surface exposed to emit radiation at at least one of said ends of said body portion, a corresponding plurality less one of thin-walled photoluminescent phosphor cylinders located colinearly and coaxially with said optical waveguide elements with individual ones of said photoluminescent phosphor cylinders being contained within individual ones of said optical waveguide elements, a corresponding plurality of second optical waveguide elements with individual ones of said second optical waveguide elements being contained within said photoluminescent phosphor cylinders, each said optical waveguide having means for internally changing the direction of travel of at least a portion of radiant energy emitted by said photoluminescent phosphor cylinders to each optical waveguide associated therewith to effect capture of a fraction of the radiant energy emitted by said phosphor cylinders in guided modes of said optical waveguides and by cumulative propagation of trapped radiation energy along said waveguide body portion to thereby effect a concentration of radiation energy and emission at at least one of said ends of said optical waveguide.