CH130785A

CH130785A - Light diffuser-distributor device for incandescent electric lamps.

Info

Publication number: CH130785A
Authority: CH
Inventors: Samuel Afia Camille
Original assignee: Samuel Afia Camille
Priority date: 1928-02-20
Filing date: 1928-02-20
Publication date: 1928-12-31

Description

Appareil diffnseur-repartiteur de lumiere pour lampes eleetriques ä ineandescence. La presente invention a trait ä un ap- pareil diffuseur-repai-titeur de lumiere pour lampes electriques ä ineandeseence, caraete- ris6 en ce qu'il comporte une lentille en forme de m6nisque couvergent, adapt6e par iin dispositif elastique contre 1e fond de 1'ampoule 6lectrique, dans 1e but de diffuser la lumiere et de modifier la cuurbe polaire de repartition lumineuse. Light diffuser-distributor apparatus for electric ineandescent lamps. The present invention relates to a light diffuser-repai-titer apparatus for electric ineandescent lamps, characterized in that it comprises a lens in the form of a covered meniscus, adapted by an elastic device against the bottom of 1 light bulb, with the aim of diffusing the light and modifying the polar curve of light distribution.

Le dessin annex6 montre, ä titre d'exem- ple, quelques formes de rklisation de 1'in- vention et notaminent Fig. 1, 1'ensemble dune Lampe demi- watt forme oignon equip6e avec 1'appareil ; Fig. 2, apres d6montage, les differentes parties constitutives de cet appareil ; Fig. 3 et 4, deux variantes de rAalisa- tion. The attached drawing6 shows, by way of example, some embodiments of the invention and in particular FIG. 1, the half-watt onion-shaped lamp assembly fitted with the apparatus; Fig. 2, after disassembly, the various component parts of this device; Fig. 3 and 4, two embodiment variants.

Sur les fig. 1 et 2, une lentille 1 (en verre moule ou taille, poli, opalin ou strie), en forme de meiiisme convergent, est appliquee contre 1e fond de 1'ampoule 6lectrique A. Üne petite couronne 2, plus ou moins ouvragee, est fixee au rebord de la lentille par des petites pattes rabattues 4. Sur cette couronne viennent s'attacher trois fils d'acier 5 enroules en forme de ressorts ä boudin 6, dans leur partie mMiane, et ter- min6e en forme de erochet 7 ; ces derniers s'inserent, lors du montage, dans les trous 10 dune bague 8 centr6e sur 1e col B de 1'ampoule 6lectrique. In Figs. 1 and 2, a lens 1 (in molded or cut, polished, opaline or striated glass), in the form of a convergent mechanism, is applied against the bottom of the electric bulb A. A small crown 2, more or less worked, is fixed to the edge of the lens by small folded tabs 4. Three steel wires 5 are attached to this crown, wound in the form of coil springs 6, in their mMiane part, and terminated in the shape of a hook 7; the latter are inserted, during assembly, into the holes 10 of a ring 8 centered on the first neck B of the electric bulb.

Les ressorts 6 permettent 1'adaptation de la lentille sur tont modele de lampe existant. The springs 6 allow the adaptation of the lens on your existing lamp model.

Suivant la fig. 3, an voit que les fils d'acier 5 peuvent eire remplac6s par des chainettes 5' pourvues de ressorts de ten- sion 6. According to fig. 3, we see that the steel wires 5 can be replaced by small chains 5' provided with tension springs 6.

La couronne 2 peut formen une v6ritable galerie ajouree 2' dopt 1e bord inferieur 2" forme un sertissage de retenue sur le rebord 3 de la lentille. The crown 2 can form a veritable perforated gallery 2' with the lower edge 2' forming a retaining crimp on the rim 3 of the lens.

Plus simplement, les fils de retenue 5 peuvent etre accroches dann les trous 3' perces Jans 1e rebord 3 de la lentille (fig. 4). More simply, the retaining wires 5 can be hooked into the holes 3' drilled in Jans the first rim 3 of the lens (Fig. 4).

Claims

CLAIM Light diffuser-distributor apparatus for electric incandescent lamps, characterized in that it comprises a glass lens in the shape of a convergent meniscus, adapted by an elastic device against the bottom of the electric bulb, for the purpose of diffuse the light and modify the polar curve of light distribution. SUB-CLAIMS 1 Apparatus according to claim, characterized in that the elastic device which holds the lens consists of three steel wires terminated by hooks and provided with tension springs allowing the adaptation of 1 device on any type of bulb. .

2 Apparatus according to claim and sub-claim 1, characterized in that the terminal hooks of the retaining wires are hooked directly into holes made in the first rim of the lens.

3 Apparatus according to claim and sub-claim 1, characterized in that the hooks are fixed to a ring retained by the rim of the lens.

4 Apparatus according to claim, charac- ris6 in that the first elastic device which holds the lens consists of three small chains provided with tension springs and terminated by hooks.

5 Apparatus according to claim, characterized in that the upper ends of the means for holding the lens are hooked to a ring threaded onto the neck of the electric bulb.