Directional lamp shade

Details Directional lamp shade Directional lamp shade

F - Mech Eng,Light,Heat,Weapons

21

V

240/159

F21V 7/00 (2006.01)

Patent

CA 1184895

ABSTRACT A directional lamp shade having a hollow tubular body to be fitted to a light source and having an open exit end. The length of the body is chosen to prevent direct light passing through the open end outside a predetermined cone semi-angle. The body has a plurality of baffles in the form of annular disks which prevent an observer looking through the body open end from outside the light cone and seeing directly illuminated portions of the body inner surface. The inner edges of the disks are sharpened to minimise specular and diffuse reflections therefrom. The disks may be equally spaced. - 1 -

390569

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