Patent ID: 6799868
Filing Date: 2004-10-05
Classification: F41H,H01S

Abstract:
A hand-held laser flashlight comprising:a housing having a light emission surface; a coherent light source disposed within the housing, said coherent light source emitting a coherent light beam; a power supply coupled to said coherent light source; an optical system disposed within said housing, said optical system having an optical system input and an optical system output, wherein said coherent light beam enters through said optical system input, and wherein a laser beam with a substantially gaussian spatial profile exits through said optical system output; and a beam expander disposed within said housing, said beam expander having a beam expander input and a beam expander output, wherein said laser beam enters through said beam expander input, and wherein an intensity controlled light beam exits through said beam expander output and through said light emission surface, said intensity controlled light beam having a beam intensity of less than 26 mW/cm2.