Integrating volume for laser light homogenization
AssigneenLIGHT, Inc.
InventorsTyson L. Lowder, Joe Kollmann
Life of this patent
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Abstract
An integrating volume for laser light homogenization includes a housing having an interior surface defining a light integrating cavity of a non-spherical configuration in the housing interior, an input port on the housing to allow entry of light from a laser beam through the input port into the light integrating cavity, and an output port on the housing and offset from the input port to allow sampling of light from the light integrating cavity through the output port after the light has reflected in the light integrating cavity between different portions of the interior surface of the housing so as to homogenize the light for sampling at the output port.
Claims19
An integrating volume for laser light homogenization, comprising:
- a housing having an interior surface defining a light integrating cavity of a non-spherical configuration in said housing interior;
- an input port on said housing to allow entry of light from a laser beam through said input port into said light integrating cavity;
- and
- an output port on said housing and offset from said input port to allow sampling of light from said light integrating cavity through said output port after the light has reflected in said light integrating cavity between different portions of said interior surface of said housing so as to homogenize the light for sampling at said output port;
- wherein said interior surface is partially specularly reflective, and wherein said interior surface further includes:
- a first pair of curved surface portions spaced apart from one another and facing toward one another, and
- a second pair of planar surface portions spaced apart from one another and facing toward one another, wherein said first pair of curved surface portions and said second pair of planar surface portions define a top, a bottom and opposite ends of said light integrating cavity;
- and
- a third pair of opposing surface portions spaced apart from one another and facing one another, and situated at opposite sides of said first pair of curved surface portions and said second pair of planar surface portions so as to define opposite sides of said light integrating cavity, wherein one of said surface portions of said third pair of opposing surface portions has a curved shape and the other of said surface portions of said third pair of opposing surface portions has a planar shape.
An integrating volume for laser light homogenization, comprising:
- a housing having an interior surface defining a light integrating cavity of a non-spherical configuration in said housing interior, said interior surface having:
- a first pair of curved surface portions spaced apart from one another and facing toward one another,
- a second pair of planar surface portions spaced apart from one another, facing toward one another and extending between and merging into said curved surface portions so as to define a top, a bottom and opposite ends of said light integrating cavity, and
- a third pair of opposing surface portions spaced apart from one another at, and facing toward one another from, opposite sides of said first pair of curved surface portions and said second pair of planar surface portions so as to define opposite sides of said light integrating cavity, wherein one of said surface portions of said third pair of opposing surface portions has a curved shape and the other of said opposing surface portions of said third pair of opposing surface portions has a planar shape;
- an input port on said housing to allow entry of light from a laser beam through said input port into said light integrating cavity;
- and
- an output port on said housing and offset from said input port to allow sampling of light from said light integrating cavity through said output port after the light has reflected in said light integrating cavity between said surface portions of said interior surface of said housing so as to homogenize the light for sampling at said output port.
Dependencies are inferred from the claim text.