Industry Patents
Patent: 6034473
Lighting System and Lamp with Optimal Filament Placement
(Click image for PDF of full patent)
| Patent Number: |
6034473 |
| Title: |
Lighting System and Lamp with Optimal Filament Placement |
| Abstract: |
A lighting system for projecting a beam of light has a light source and a
concave reflector having a central axis. The center of the light source is
located at a position other than at the focal point of the reflector, i.e.
between the reflector surface and the focal point of the reflector for an
ellipsoidal reflector and forward of the focal point for a parabolic
reflector. This placement provides a greater light output than is
achievable by positioning the light source at the focal point of the
reflector. The preferred light source is an improved lamp having an
incandescent filament having a central linear helical portion aligned with
a central axis of the reflector and a peripheral helix portion around the
central portion so as to concentrate the emission of light along and about
the central axis of the filament.
|
| Country of Issue: |
US |
| First Named Inventor: |
McBride, Whitright |
| Assignee: |
Wybron |
| Continuation or Divisional of: |
|
| International Classification: |
H01K 1/02 |
| US Classification: |
313/578 |
| Issue Date: |
03-07-2000 |
| Filing Date: |
11-26-1997 |
| Application : |
02979747 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
6034473 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6034473 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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