PAR Flood lamp
AssigneeGTE Products Corporation
InventorsClarence D. Puckett, Arnold E. Westlund, Jr., William G. Thiry
Life of this patent
Estimating the term…
Abstract
A flood lamp having a lens with a series of concentrically disposed fluted rings on the internal lens surface in combination with an outer concentric ring adjacent to and wider than any one of the fluted rings and containing a plurality of semi-spherical protrusions disposed in an established pattern (e.g., circular or hexagonal). The flood lamp reflector has multiple reflective surfaces including a front section that is parabolic shape having a principle focal point, a spherical section having its center of radius coincident with the principle focal point of the parabolic front section, and a spherical rear section.
Claims14
In a flood lamp including a reflector portion, a lens member adjacent said reflector portion, and a light source disposed within said reflector portion and substantially surrounded thereby, the improvement wherein said lens member comprises:
- a substantially curved member having a first, internal surface including a series of concentrically disposed fluted rings formed therein and an outer concentric ring portion having a plurality of relatively small semi-spherical protrusions formed therein, each of said fluted rings being disposed at a progressively increasing radius from the axis of said spot lamp passing through said curved member, said outer concentric ring portion contiguous to the outermost of said fluted rings and of a width greater than any one of said fluted rings.
Dependencies are inferred from the claim text.