Light Bulb
AssigneeBuster and Punch Limited
InventorsIain DULLEY, Massimo MINALE
Life of this patent
Estimating the term…
Abstract
A light bulb, in particular one which has a light pipe in the form of a bar or tube, mounted to a light source. The light pipe has coloured lines extending along and within it. When illuminated by the light source, the light pipe acts as a means for dissipating light, providing the desirable effect of a traditional filament or incandescent bulb without the high temperatures and low energy efficiency associated with such a light source. Such a light bulb may also include a screw or bayonet fitting, allowing it to be retrofitted into existing lighting units, providing backwards compatibility with existing lighting installations.
Claims49
A light bulb, comprising:
- a light source;
- and
- a light pipe mounted to the light source;
- wherein
- the light pipe is a transparent bar or tube having coloured lines extending along and within it.
(canceled)
A method of manufacture, comprising:
- extruding a light pipe, the light pipe being extruded with a coloured material extending along and within it, and
- mounting the light pipe to a light source.
A light bulb, comprising:
- a light source;
- and
- a light pipe mounted to the light source;
- wherein
- the light pipe is a translucent bar or translucent tube.
Dependencies are inferred from the claim text.