JPH04135779U - Indicator light - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide an indicator light that is even thinner, capable of double-sided light emission, and highly decorative with almost no unevenness in brightness. [Configuration] Symbol characters printed on the surface of transparent resin plate 6
A pair of light guide plates each with 8 dots printed on the back side.
9 and 9 are polymerized to form a display section 2, a light source section 1 is provided on the side of the display section 2, and a light emitting surface 11 on the opposite side of the display section 2 from the light source section 1 is provided with a light source section 1. A diffusion film or prism film 12 is attached.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This device can be installed on various electronic bulletin boards and facilities stipulated by the Fire Service Act. Related to indicator lights such as guide lights.

0002

[Conventional technology]

There are various types of indicator lights depending on their purpose and installation location, but there are Guidance lights must be formed in accordance with the Guidance Light Equipment Technical Standards, JIL5502-1977. Therefore, many had simple restrictions on size, etc. However, recently the whole thing has become thinner. As the interior design becomes more demanding, development for this purpose is progressing.

0003 Among them, for example, as shown in Fig. 3, the housing 21 is designed to improve brightness. A light source 22 is installed on one side of the interior, a display board 23 is installed on the front, and a light source is installed on the back. For diffusion, a thin transparent plate 24 made of a large number of acrylic resins is used to receive light from the light source 22. Multiple layers are stacked so that the surface that spreads is almost flush and the surface that diffuses is stepped. (Refer to Utility Model Application Publication No. 63-59654).

0004 However, although the above-mentioned guide lights have been made somewhat thinner, they do not have a double-sided light emitting structure. The disadvantage is that it cannot be constructed.

[0005] Therefore, in order to create a guide light that is thin and can emit light from both sides, for example, as shown in Fig. As shown in , the back sides of a pair of transparent plates 26 with 25 dots printed on their back sides are polymerized. A box-shaped display panel consisting of a plastic plate with symbol characters displayed on its outer periphery. A guide light was developed in which the guide light was covered with a light source 27 and a light source 22 was installed on one side of the guide light.

[0006]

[Problem that the idea aims to solve]

The above-mentioned guide light is a double-sided light emitting type and is extremely thin, making it highly decorative. However, the problem with the display panel 27 of this guide light is that the brightness is quite uneven. A point remained.

[0007] Therefore, in this invention, we devised an improved product of the above-mentioned guide light, and it is not only a guide light but also a guide light. It is applied to various indicator lights, and is even thinner and can emit light from both sides. Moreover, we aim to provide an extremely decorative indicator light with almost no unevenness in brightness. It has been the target.

[0008]

[Means to solve the problem]

The present invention takes the following technical measures to achieve the above object.

[0009] In other words, symbol characters are printed on the front side of the transparent resin board, and dots are printed on the back side. The back surfaces of the pair of light guide plates that have been applied are superimposed together to form a display section, and the sides of the display section are A light source section is provided on the display section, and an output section is provided on the opposite side of the display section from the light source section. It is characterized by having a light diffusion film or prism film attached to the light surface. ing.

0010

[Effect]

In the indicator lamp according to the present invention, the light from the light source 5 enters the display unit 2 as shown by the arrow in Figure 1. The light enters the light guide plate 9 from the light surface 10, and this incident light is printed on the overlapped surface of the light guide plate 9. The dot 8 mark reflects the radiance in all directions, completely diffuses it, and Finally, the light hits the symbol characters 7 printed on the surface of the display section 2 from the back side, Almost the entire surface of the display section 2 emits light uniformly.

[0011] In addition, a part of the light is transmitted through a light diffusing film provided on the light emitting surface 11 on the opposite side of the light source section 1. Alternatively, the prism film 12 can be used to further diffuse and diffuse the film in one direction and at a certain angle. The light is transmitted, further improving the overall illumination.

0012

【Example】

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In addition, as an example of the present invention, This is an explanation using guide lights.

[0013] The guide light according to this invention has the type and display surface size (long side and The following is an example of a guide light installed on the ceiling. That's what I say.

[0014] As shown in Figures 1 and 2, the guide light according to the embodiment of the present invention has a light source part 1 and a display part. 2, the light source part 1 is fixedly installed on the ceiling surface 3 or buried in the ceiling, This light source unit 1 has a light source 5 such as a fluorescent lamp or a ballast disposed inside a housing 4. It is.

[0015] A display section 2 is provided attached to or inserted into the light source section 1 . This display 2, the symbols and characters 7 are printed directly on one side of the transparent resin plate 6, and the light is scattered on the other side. Two light guide plates with scattered reflective dots 8 screen-printed marks 9 It is formed by preparing a light guide plate 9 and polymerizing the respective back surfaces of the light guide plate 9 with each other.

[0016] The transparent resin board 6 is made of acrylic resin, polycarbonate, AS, PET, etc. It is made of transparent resin with good light transmittance, and the above dot 8 printing is as shown in Figure 1. Gradation pattern that gradually increases in proportion to the distance from the sea urchin light source 1 By setting the brightness level, it is possible to maintain even brightness, and almost no brightness unevenness occurs. preferable.

[0017] When actually lighting up, use the side end surface of the light source section 1 of the display section 2 as the light entrance surface 10. , the light from the light source 5 is input into the light guide plate 9, and this incident light is printed on the dots 8. Radiance is reflected in all directions and completely diffused. and each surface of the light guide plate 9 The symbol characters 7 printed on the screen are irradiated from the back side, covering almost the entire surface of both sides of the display section 1. to emit light evenly.

[0018] In addition, a light diffusing film or a prism film is placed on the light exit surface 11 on the opposite side to the light entrance surface 10. When Lum 12 is attached, part of the light is diffused and transmitted in one direction and at a certain angle. This further improves the illumination level of display section 2 and increases the amount of light transmitted to the floor. Ru.

[0019] In addition, the light diffusion film should be made so that the processed structure of the dot 8 printing cannot be seen. It is best to use a translucent polycarbonate film with high transmittance.

[0020] Further, the surface of the prism film 12 is a prism surface, and the prism film 12 has a prism surface. There is no particular limitation on the shape of the rhythm surface.

[0021] Furthermore, in order to improve the brightness, for example, dots may be placed on both sides between the overlapping surfaces of the two light guide plates. If you sandwich a transparent resin plate or transparent film that has been printed on, it will be slightly thicker. However, the diffused reflection rate of light increases significantly, and the brightness also increases accordingly.

[0022] Above, we have talked about guide lights installed on the ceiling3, but of course they can also be installed on the floor or wall. The same applies to guide lights, especially when installed on a wall, where only one light guide plate is required. Since it is not necessary to emit light from both sides, it can be used as an even thinner guide light.

[0023] In addition, the structure of the guide light described above can also be used as an indicator light for various other information boards, bulletin boards, etc. These indicators can be highly decorative.

[0024]

[Effect of the idea]

In the indicator light of the present invention, the display part 2 prints symbol characters 7 directly on the surface of the transparent resin plate 6. Each back side of a pair of light guide plates 9 each having a dot 8 mark printed on the back side. Because it is a polymerized product, it is thin, can emit light from both sides, and has low brightness It is highly decorative with almost no markings.

[0025] In addition, a light diffusing film or By attaching prism film 12, the illumination intensity and amount of light transmission can be further increased. I was able to do it.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is an enlarged cross-sectional explanatory diagram showing a conventional example.

FIG. 4 is an enlarged sectional view showing another conventional example.

[Explanation of symbols]

1 Light source section 2 Display section 5 Light source 7 Symbol characters 8 dots 9 Light guide plate 12 Prism film

Claims (2)

[Scope of utility model registration request] [Claim 1] Symbol letters on the surface of the transparent resin plate (6)
(7) Printing is applied to the display area by overlapping the back sides of a pair of light guide plates (9), (9) each with dots (8) printed on the back side.
(2), and a light source section (1) is provided on the side of the display section (2). [Claim 2] A claim characterized in that a light diffusing film or a prism film (12) is attached to the light emitting surface (11) of the display section (2) on the side opposite to the light source section (1). The indicator light described in item 1.