Patent ID: 8125127

Claim:
An article of manufacture, comprising: at least one point source of light which emits an initial light beam having a beam divergence of less than or equal to 10 degrees about an axis of emission; and at least one apparatus for diffusing the light, said diffusing apparatus comprising: a first beveled washer, oriented with a first washer-base substantially perpendicular to said light beam and having a reflective surface beveled at a first bevel angle with respect to said first washer-base, said beveled, reflecting surface being positioned between said first washer-base and said point source of light such that the beveled, reflective surface reflects an outer portion of said light beam away from said axis of emission but with a component of direction in the direction of said initial light beam, and wherein said first beveled washer has a hole with a center substantially aligned to said axis of emission, such that a central portion of said light beam passes through said first beveled washer unimpeded; and a second beveled washer oriented with a second washer-base substantially perpendicular to said light beam and having a reflective surface beveled at a second bevel angle with respect to said second washer-base, said second bevel angle being substantially larger than said first beveled angle, said beveled, reflected surface being positioned between said second washer-base and said first beveled washer such that the beveled, reflective surface reflects a portion of said light beam away from said axis of emission but with a component of direction in the direction of said initial light beam, and wherein said second washer has a hole with a center substantially aligned to said axis of emission, such that a central portion of said light beam passes through said second beveled washer unimpeded.