Lamp with a lens lenticule pattern based on the golden ratio

Details Lamp with a lens lenticule pattern based on the golden ratio Lamp with a lens lenticule pattern based on the golden ratio

2007-07-02

2008-10-28

Sember, Thomas M (Department: 2885)

Illumination

Light source and modifier

Including reflector

C362S309000, C362S346000

Reexamination Certificate

active

07441927

ABSTRACT:
A lens with lenticules arranged in a spiral pattern is described. In polar coordinates the centers of successive lenticules are radially and angularly spaced by spacing factors including Phi, the conjugate of the Golden Ratio. The resulting spiraling lenticule pattern is free of internal harmonics that lead to striation patterns in the lens refracted light. At the same time the size of the beam spot can be set by reflector size and lenticule profile.

REFERENCES:
patent: 5199787 (1993-04-01), King et al.
patent: 5272408 (1993-12-01), Levin et al.
patent: 5683175 (1997-11-01), Golz
patent: 6086227 (2000-07-01), O'Connell et al.

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