Industry Patents
Patent: 7518299
Compact PAR Lamp Comprising An Ellipsoid Reflector Having More Than One Focal Point
(Click image for PDF of full patent)
| Patent Number: |
7518299 |
| Title: |
Compact PAR Lamp Comprising An Ellipsoid Reflector Having More Than One Focal Point |
| Abstract: |
A compact PAR lamp (10) has a hollow body (12) arrayed along a
longitudinal axis (14) and has an open end (16) and a substantially
closed neck end (18) and containing a light source capsule (20) within
the hollow body (12) and coaxial with the longitudinal axis (14). The
light source capsule (20) has electrical lead-ins (22, 24) that extend
therefrom and exit via the neck end (18). A first parabolic reflector
(26) is formed within the body (12) and has a wide portion (28) adjacent
the open end (16) and a narrow portion (30) spaced therefrom along the
longitudinal axis (14). A second reflector (32) is formed within the body
(12) and extends from the narrow portion (30) into the neck end (18). A
lens (34) closes the open (16), and a base (36) is attached to the closed
neck end (18). In an alternate version the light source (20) comprises an
arc discharge vessel (44) containing electrodes (46, 48) having termini
(46', 48') defining an arc gap (50) therebetween and the focal points of
the second reflector (when the second reflector is ellipsoidal)
correspond with the termini (46', 48').
|
| Country of Issue: |
US |
| First Named Inventor: |
Kling |
| Assignee: |
Osram Sylvania |
| Continuation or Divisional of: |
|
| International Classification: |
H01J 5/16 |
| US Classification: |
313/113 |
| Issue Date: |
04-14-2009 |
| Filing Date: |
09-27-2006 |
| Application : |
11/528040 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7518299 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7518299 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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