Apparatus and method for emitting light to a desired target...

Details Apparatus and method for emitting light to a desired target... Apparatus and method for emitting light to a desired target...

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 8/00 (2006.01) A61N 5/06 (2006.01)

Patent

CA 2490970

An optical device for irradiating a target with light is disclosed wherein an optical waveguide has a first span or portion with a first end for being coupled with a light source. The first span has a diameter suitable to guide and support light having an electro-magnetic mode coupled therein without substantial optical loss. The first span has a region which tapers to a second span or portion of the optical waveguide. The second span is formed in a coil which guides light poorly wherein optical loss is substantial. The second span having a diameter less than the first span. In operation, light radiates outward from the second span along its length. Preferably, the coil has an inner diameter of less than 1 cm.

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