DE1646190U - REFLECTOR SCALE FOR BROADCASTING OR TELEVISIONS. - Google Patents

Description

Reflector scale for radio or Televisions Description : The present innovation concerns a new type of scale that allowed to use the aperture located behind the scale if possible bring it close to it. The scale according to the This innovation also enables the number of light sources len without reducing the illumination of the diaphragm. c << * <' Furthermore, a uniform distribution of the light is ensured Light source respectively of the light sources and the atrium education in the vicinity of the light source respectively. of the light sources prevents. So far, only then has the scale been properly illuminated and avoiding halo and cloud formation on the B {cnx Scale possible if the aperture behind the scale is in greater distance from the same and at long Several light sources between the scale and the diaphragm. were brought. The inconveniences of the previously named arrangements are which has now been avoided by the present innovation. Various exemplary embodiments are shown in the figures present innovation: Fig. 1 shows the scale in section seen from the side. The glass scale (1) is on the back with the usual print (2) and a stalreflective animal layer (3). Behind it is the cover (4) and above Glass scale and the aperture (4) the light source (5) from which viewed schematically, the beam path (6) starts out.

Figure 2 shows part of a scale in section. Here is the Glass scale (1) on the rear side with the usual imprint (2), while the light-reflecting layer (3) is behind the same. Between (2) and (3) there is the translucent layer (7).

Figure 3 shows that part of a scale seen from the front.

Figure 4 shows the same embodiment as Figure 3 with the difference is that here the openings for the small windows and the writing are shown in section.

Figure 5 shows the same with the difference that on the reflective Layer (3) a layer of lacquer (8) is applied.

Finally, Figure 6 shows the reflective layer (3), the is applied directly to the glass pane and forms the print itself, d. ho the places that are not covered by it form the windows and the writing.

The light-reflecting layer can, for example, consist of vapor-deposited Metals or metal sprayed paints or the like. Exist; it covers completely the back of the scale with the exception of the spots for the transparent station windows or for the station names to be left blank.

The mode of operation of the highly light-reflecting layer (3) is now the following : The rays of light emitted from the aperture (6) the light source (5) or the light sources (5) are from the layer (3) again on the diaphragm (4) is reflected and the dark ones on the diaphragm (4) are lightened Set up. This prevents the formation of halos and clouds from becoming visible, and the scale according to the present innovation has a much better light distribution . ment and illumination than the usual scales with normal back surface.

Claims (3)

Protection claims. 1.) Reflector scale for radio or television sets, consisting of a transparent carrier, preferably a pane of glass (1) with a print on the back to identify the station names and station windows, characterized in that a reflective layer on the side of the disc (1) facing the diaphragm (4) (3) is applied. 2.) Reflector scale for radio or television sets according to claim 1, characterized in that on one side of the disc (1) a light-reflecting Layer (3) is applied, which completely covers this side, with the exception of the Places left blank for the transparent station windows and station names Need to become. 3.) reflector scale according to claims 1 to 2, characterized in that that the light-reflecting layer (3) with a light-permeable lacquer layer (8) is covered.