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US 7,252,406 B2Granted
Fluorescent lamp system using reflectors
AssigneePureSpectrum, Inc.
InventorEarl F. Crandall
Life of this patent
Estimating the term…
Abstract
A gas discharge lamp includes a plurality of gas discharge bulbs arranged on a base along a perimeter defining a middle region and at least one reflective mirror positioned in the middle region and operative to reflect light outward from the middle region. Alternatively, at least one light pipe can be positioned in the middle region and configured to gather light and redirect the light outward from the middle region.
Claims11
A gas discharge lamp, comprising:
- a plurality of gas discharge bulbs arranged on a base along a perimeter defining a middle region;
- and
- at least one reflective mirror positioned in the middle region and operative to reflect light generated by each of said gas discharge bulbs outward from the middle region,
- wherein the at least one reflective mirror is hyperbolic in shape.
1 more element
A gas discharge lamp, comprising:
- a plurality of gas discharge bulbs arranged on a base along a perimeter defining a middle region;
- and
- at least one reflective mirror positioned in the middle region and operative to reflect light generated by each of said gas discharge bulbs outward from the middle region, wherein the at least one reflective mirror is parabolic in shape.
A gas discharge lamp, comprising:
- a plurality of gas discharge bulbs arranged on a base along a perimeter defining a middle region;
- and
- at least one light pipe positioned in the middle region and configured to gather light generated by said gas discharge bulbs and redirect the gathered light outward from the middle region,
- wherein the at least one light pipe is formed of a bundle of smaller fibers.
1 more element
A gas discharge lamp, comprising:
- a plurality of gas discharge bulbs arranged on a base along a perimeter defining a middle region;
- and
- at least one light pipe positioned in the middle region and configured to gather light generated by said gas discharge bulbs and redirect the gathered light outward from the middle region,
- wherein the bulbs are U-shaped and the at least one light pipe is arranged to gather light from a rear of one prong of a U-shaped bulb and redirect the light out of the lamp.
1 more element
A gas discharge lamp, comprising:
- a plurality of gas discharge bulbs arranged on a base along a perimeter defining a middle region;
- and
- at least one light pipe positioned in the middle region and configured to gather light generated by said gas discharge bulbs and redirect the gathered light outward from the middle region,
- wherein the at least one light pipe is coated with a metalized layer to reflect light within the pipe and guide the light from one end to another end of the pipe.
1 more element
Dependencies are inferred from the claim text.