Patent ID: 6612719
Filing Date: 2003-09-02
Classification: H01S

Abstract:
An illumination apparatus, comprising:a semiconductor-laser providing light-output in first and second mutually perpendicular axes said light-output propagating in a direction mutually perpendicular to said first and second axes; an optical system including a plurality of lenses, said optical system being arranged cooperative with said semiconductor laser such that said light output is brought to an intermediate focus between two of said plurality of lenses in said second axis only, and such that said light-output is finally focused in said first and second axes at respectively first and second focal-points spaced apart in said propagation direction, said first focal point being closer to said optical system than said second focal point; and wherein at a plane intersecting said first focal point perpendicular to said direction of propagation, said focused semiconductor-laser light-output is formed into a line of light having a width in said first axis and a length in said second axis.