JPS6125002Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a display switching light for switching the display of figures, characters, etc., and has the purpose of making it possible to switch the display of different figures, etc. on the same display surface.

Conventionally, display switching lights that have enabled this type of display switching have either had a large number of small light bulbs arranged over the entire display surface and each light bulb is selectively turned on, or they have had tubular lamps for each display type. A display that overlaps one another is often used, but the former has the disadvantage that the displayed figures are discontinuous, the structure is complicated, and the price is high, while the latter
This had the disadvantage that the light from the rear lamps was obstructed by the lamps placed in front, making the display unsightly.

The present invention is a display switching light that solves these conventional drawbacks, and includes two light sources and two light sources whose polarization directions are perpendicular to each other and are provided in front of each of these light sources.
It consists of one light source polarizing plate, and two display polarizing plates that are placed in front of these light source polarizing plates and stacked on top of each other so that the polarization directions are perpendicular to each other and that a display figure or character is cut out to form a transparent hole. , the gist is that the display is switched by switching the lighting of the two light sources.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, 1 and 2 are light sources, and color fluorescent lamps are used, and 1 is green and 2 is red. Two color fluorescent lamps are used for each light source to eliminate uneven light. The light sources 1 and 2 are partitioned by a plurality of partition plates 3 and housed in a box 4 so as to be parallel to each other. Reference numerals 5 and 6 denote light source polarizing plates that are attached to the front surface of the box 4, and the polarizing plates 5 and 6 provided in front of the light source 1 and 2 have their polarization directions at right angles to each other. There is. Reference numerals 7 and 8 denote display polarizing plates, which are provided in front of the light source polarizing plates 5 and 6 and superimposed on each other, and each display figure on a transparent plate such as an acrylic plate is connected to each polarizing plate 9 and 10. The transparent parts 11 (x mark) and 12 (○ mark) are cut out and pasted. The polarizing plates 9 and 10 have polarization directions perpendicular to each other. In addition, the outer peripheral portions are light shielding portions 13 and 1, respectively.
It is set as 4.

FIG. 2 shows a state in which the display polarizing plates 7 and 8 are assembled by overlapping each other, and the light source polarizing plates 5 and 6 and the light sources 1 and 2 are located at the rear. At this time, the overlapping portion 1 of each polarizing plate 9 and 10
5 is already shielded from light. The display switching of the 〇 and × marks is done by switching on the lighting of light sources 1 and 2. When the light source 1 (green fluorescent lamp) is turned on, the polarizing plate 9 in the same direction as the light source polarizing plate 5 is turned on. Translucent,
Since the polarizing plate 10 in the right angle direction blocks light, the circle is displayed in green as shown in FIG. Also, light source 2
When the (red fluorescent lamp) is turned on, the polarizing plate 10 in the same direction as the light source polarizing plate 6 transmits light, and the polarizing plate 9 in the right angle direction blocks light, so the x mark is red as shown in Figure 4. Is displayed.

In the above embodiment, the two light sources 1 and 2 have different hues for color display, but it goes without saying that each of the light sources 1 and 2 may be a white fluorescent light. .

As described above, the switching indicator light of the present invention can switch between displaying different figures or characters on the same display surface, so it requires less space on the display surface and is better than conventional indicator switching lights for the same purpose. It has the feature that a clear display can be obtained with a comparatively simple configuration.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the display switching light of the present invention, FIG. 2 is a front view of the same when assembled, and FIGS. 3 and 4 are front views showing different display states. 1... Light source (green fluorescent light), 2... Light source (red fluorescent light), 3... Partition plate, 4... Box, 5,
6... Light source polarizing plate, 7, 8... Display polarizing plate, 9,
10...Polarizing plate, 11, 12...Transparent part, 13,
14... Light blocking portion, 15... Overlapping portion of polarizing plates 9 and 10.

Claims (1)

[Claims for Utility Model Registration] (1) Two light sources, two light source polarizing plates individually provided in front of each of these light sources and whose polarization directions are perpendicular to each other, and It consists of two display polarizing plates that are stacked one on top of the other and whose polarization directions are at right angles to each other, and in which display figures or characters are cut out to form a transparent part, and the display is switched by switching the lighting of the two light sources. Display switching light. (2) The display switching lamp according to claim 1 of the utility model registration, in which the two light sources have different hues.