Locking element holds screening cap in lighting unit

Details Locking element holds screening cap in lighting unit Locking element holds screening cap in lighting unit

2003-11-04

2008-12-02

O'Shea, Sandra (Department: 2875)

Illumination

Modifier mountable on light source envelope

C362S303000, C362S351000

Reexamination Certificate

active

07458702

ABSTRACT:
The invention relates to a lighting unit having a concave reflector with an axis of symmetry and a light emission window bounded by a circumferential edge transverse to the axis, an elongate light source extending substantially along the axis of symmetry, which light source is accommodated in a holder opposite the light emission window, and an axially positioned cap, which cap partly surrounds the light source and forms an optical means to intercept unreflected light rays. According to the invention, the light source is surrounded by a sleeve with an end at the side of the light emission window, over which end the cap is positioned by way of a fixing element.

REFERENCES:
patent: 2277563 (1942-03-01), Scott et al.
patent: 5001387 (1991-03-01), van der Heijden
patent: 5506464 (1996-04-01), Ooms
patent: 6382816 (2002-05-01), Zhao et al.
patent: 0 336 478 (1989-10-01), None
http://www.google.com/search?sourceid=navclient&aq=t&ie=UTF-8&rls=GGLD,GGLD:2004-30,GGLD:en&q=define%3aadhesion.
http://www.google.com/search?sourceid=navclient&aq=t&ie=UTF-8&rls=GGLD,GGLD:2004-30,GGLD:en&q=define%3abond.
http://en.wikipedia.org/wiki/Metal—halide—lamp & http://wordnet.princeton.edu/perl/webwn?s=cap.
http://wordnet.princeton.edu/perl/webwn?s=interlock.

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