Parabolic and spherical multiport illuminators for light guides

Details Parabolic and spherical multiport illuminators for light guides Parabolic and spherical multiport illuminators for light guides

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 8/00 (2006.01) F21V 5/04 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2333535

An optical system used in transmitting illumnation from a central source to a variety of remote locations, coupling the light originating from a lamp, or similar source, into a multiplicity of flexible macroscopic fibers. A heat containment barrier is disposed between the focusing lenses and the illumination source. The light source (12) is surrounded by a wire cage (81), which forms a microwave cavity. The light source (12) is rotated to facilitate a uniform plasma. A curve semi-spherical retro-reflector (85) is provided to redirect light from the light source (12) generally back through the lamp toward the focusing lenses (76). A mixing rod (90) is coupled to each focussing lens.

Cette invention concerne un système optique qui permet de transmettre un éclairage depuis une source centrale vers divers endroits situés à distance, et qui permet également de coupler la lumière provenant d'une lampe, ou d'une source similaire, à de multiples fibres flexibles et macroscopiques. Une barrière de contention de la chaleur est disposée entre les lentilles de focalisation et la source d'éclairage. La source de lumière (12) est entourée d'une cage grillagée (81) qui forme une cavité à micro-ondes. La source de lumière (12) va également tourner de manière à faciliter la formation d'un plasma uniforme. Un rétro-réflecteur (85) hémisphérique courbe va globalement renvoyer la lumière provenant de la source de lumière (12) à travers la lampe et vers les lentilles de focalisation (76). Une tige de mélange (90) est en outre couplée à chaque lentille de focalisation.

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