DE3150662C2 - Electric lighting fixture - Google Patents

Abstract

An electrical illuminating body is proposed, which consists of a simply designed, little space-consuming, flat building block with a relatively high light intensity, which has at least one cavity which is in a channel-like, in one plane, at least once angled or curved cavity extending, connected to a plurality of outwardly led, spaced apart terminal contact parts connected light-emitting element.

Description

55

The present invention is based on one conceived according to the preamble of the main claim electric lighting fixtures.

Such lighting fixtures intended for combination with an electrical switching device serve to make it clear to a Beiraciiicr which State of several different states is present at the moment.

In connection with small dimensioned electric telephones It is generally known aggregates, different states either by so-called miniature glass base lamps or to be identified by light-emitting diodes. Glass base lamps have a sufficient Light intensity and can thus either according to the principle »light-dark« or according to the principle "Light-weakly light" can be operated. The disadvantage, however, is that this type of lighting fixture is a has a relatively large overall height, so that it can be used in all cases, e.g. when Miniature pushbutton switches is practically impossible

Although light-emitting diodes take up little space, their light intensity is very limited and can practically only be operated according to the »light-dark principle will.

DE-OS 28 36 806 is a lighting fixture corresponding to the preamble of the main claim, which is used as an indicator lamp and with at least seven light-emitting elements is equipped, became known.

A major disadvantage of this known, intended for a "light-dark" display of different states Device can be seen in the fact that they are arranged separately from a switching device must, which significantly increases the space required for the entire arrangement

The present invention is based on the object of providing a lighting fixture of the type mentioned at the beginning Art to create that both according to the principle of "light-weakly light" with relatively high light intensity operate as well as with a simple design of a switching device without significant enlargement can be assigned directly to the space required anyway.

According to the invention, the object is achieved in such a lighting fixture by the in the characterizing Part of the main claim specified features solved.

Due to such a design of the electric lighting fixture and its operation after the »hell-weakhelk principle is also darker Environment, finding this arrangement and the possibly assigned switching process are essential relieved. The breakthrough in the module also enables the switching device to be accommodated in a space-saving manner.

Further particularly advantageous refinements of the subject matter according to the invention are set out in the subclaims specified.

On the basis of an exemplary embodiment shown more or less schematically in the drawing Lighting fixture according to the invention explained in more detail. It shows

F ί g. 1 a the lighting fixture in plan view,

Fig. Ib shows the lighting fixture according to Fig. La in section along line AA,

F i g. 2 the application of the lighting fixture according to FIG. 1 for a multi-button switch.

As can be seen in particular from Figures la and Ib, the lighting fixture consists essentially of a flat, at least translucent, Heat-resistant material formed building block 1, which has a square contour and with a perpendicular

".. I II ..._ i.L—. 41 | I ____ J ^ _

... 1 laupicucuc 1 iicgciiuvn

ZU ropes

L / ui> .iiui UCR J VCfSC-

hen is. The opening 2 is arranged centrally in the module 1 and also has a square Contour on. Furthermore, the building block 1 is provided with a channel-like concentric to the opening 2 and thus provided several times in its course by 90 ° angled cavity 3, in which a light-

ί _t emitting element 4 under suitable conditions, / such as. B. is arranged under the influence of an introduced gas formed light-emitting element 4 is connected in the four K corner areas of the cavity 3 with Ansrhlußkontaktäg parts 5a to 5d , which are held in the block 1 and with their ends 5a 'to 5d' of those in FIG. . Ib p ends 5b ¹ and 5d are shown, are led out to one side to s "outside the ends 5a 'to 5d' are K advantageously as a plug contact parts formed f: and lie at a distance from one another which vorteilf; adhesive enough, a predetermined spacing Because of this design, it is possible to insert a so-called miniature pushbutton switch into the opening 2 and also to connect it directly to the conductor tracks of the printed circuit board Schaitzustände the push button switch are thereby • ^J; characterized illustrated in more detail that, in the one Schaltzu- • Si; stand for a specific, is applied from an associated switching £ circle supplied voltage potential at the Connection P contact parts 5a $ c, so that the BL LEVEL -; / device body shines faintly bright With the other f: switching state, the voltage potential between! '{see the connection contact parts 5a-5b, 5b-5c, ',,'.,. 5c-5c / and 5c / -5a effective, whereby the lighting ·. tungsköφer brightly lights Since the two switching states do not differ by light and dark, but rather: by weakly light and light, finding and actuating such a pushbutton switch is particularly favorable even in a dark environment.
; Another particularly advantageous application of the

i, lighting fixture is in the use of module 1 according to FIG. 1 can be seen at a multi-button switch as shown in FIG. 2 is clarified in more detail. The module '·; 1 of four translucent, also a total of one:. square contour-forming pushbuttons I-1V ^; arranges, the orientation of the module 1 against- ^{: i is} rotated by 45 ° over the orientation of the multi-button switch. The operating parts 6 of the pushbuttons I-IV

H in turn reach through the opening 2 and ¹ ; are provided at their corners facing the center with roof-like bevels 7, which have a spherical

; - ges deflectable locking element 8 is assigned p Due to this configuration, it is only possible

'. a maximum of two adjacent pushbuttons ;: to be operated at the same time. In the normal state, i.e. at unactuated pushbuttons I-IV there is a voltage

; potential between the connection contact parts 5b to Sd,

as a result of which the lighting fixture shines weakly as a whole. Are then z. If, for example, the pushbuttons I and II are actuated, a voltage potential is built up between the connection contact parts: 5a and 5b and 5a and 5d , whereby the part of the filament 4 affected by it lights up brightly. Since the terminal contact parts 5b and 5c / are at the same potential, the ^; . other part of the filament dark, so that an arrow-like; _: ; Shaped display is created, which is to be interpreted in the sense of an upward directional course. An equal; The sequence arises when the pushbuttons I-HI, III-IV:. or IV-I are operated, only that the arrow-shaped; ^. ge Αην & ϊσρ. in a? by '? knows! s 90 ° "e-rotated direction!" shows. Such an application of the lighting fixture is therefore particularly favorable for controlling a unit that can be adjusted in the λΎ direction.

1 sheet of drawings

Claims (6)

Patent claims: 1. Electrical lighting fixture, in which depending on different switching states an electrical switching device, the light intensity by engaging in an associated Circuit is changeable, the lighting fixture made of a flat, at least translucent, heat-resistant material Module consists of at least one light-emitting Has element which extends in a cavity lying in one plane and which with connected several outwardly led, spaced terminal contact parts is, characterized in that the module (1) for the purpose of arranging the switching device has a centrally located, perpendicular to its main plane (1 ') extending opening (2) and that the channel-like cavity (3) is closed in itself and concentric to the Breakthrough (2) runs 2. Electrical lighting fixture according to claim 1, characterized in that the module (1) - as known per se - is rectangular is and a rectangular opening (2) and that the light-emitting element (4) arranged in the likewise rectangular cavity (3) - as known per se - designed as a filament is connected to four outwardly led terminal contact parts (5a to Sd) . 3. Electrical lighting fixture according to claim 2, characterized in that the module (1) as well as the opening (2) contained therein has a square contour 4. Electrical lighting fixture according to claim 2 or 3, characterized in that the connection contact parts (5a to 5d) of the filament (4) - as known per se - arranged in the region of the four corners of the cavity (3) and led out to one side to the outside are. 5. Electrical lighting fixture according to claim 2 or one of the following claims, characterized in that the connection contact parts (5a to Sd) are arranged such that they can be connected to a standardized grid dimension having printed circuit boards. 6. Electrical lighting fixture according to claim 2 or one of the following claims, characterized in that the outwardly projecting ends (5a 'to 5d') of the connection contact parts (5a to shawls plug contact parts are formed.