JPH04101321U - illuminated switch - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a compact lighted switch that can accurately display each operation mode by light emission. [Structure] A key top 15 is provided with a plurality of light-emitting display sections 13a, 13b, and 13c that perform light-emitting display by transmitting illumination light from behind to the front side, and at least one of the plurality of light-emitting display sections The light-emitting display section 13b performs a light-emitting display by guiding illumination light from a light source 14b corresponding to the display section through a light guide section 16, and the light guide section 16 is configured to perform a light-emitting display by guiding illumination light from a light source 14b corresponding to the display section through a light guide section 16, and the light guide section 16 Light sources 14a, 1 corresponding to light emitting display sections 13a, 13c other than the display section 13b
It is configured to have a color that is complementary to the illumination light 4c irradiated.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a lighting device installed on the panel surface of various electrical devices such as car stereos. It is related to switches, and in particular, light-emitting switches that switch and display predetermined light-emitting displays from the display surface. This is related to Chi.

0002

[Conventional technology]

Conventionally, such an illuminated switch is configured as shown in FIG. 3, for example. In the figure, this light switch 1 is a control panel for various electrical devices such as a car stereo. A key made of synthetic resin is attached to the panel 2 so that it can move forward and backward in a direction substantially perpendicular to the panel surface. A transparent material is exposed on the front side (upper surface in the figure) of the key top body 5 and the key top body 5. Three display parts 3a, 3b, 3c formed by pushing out and corresponding to each display part Behind that, three light sources 4a, 4b, 4c are mounted on the board P and are lit individually. It is composed of

0003 This illuminated switch 1 moves the key top main body 5 forward and backward in the direction of the arrow, It is designed to switch between various operation modes such as Leo, etc., and depending on the operation mode, Three display sections 3a, 3b, 3c individually or two or three display sections simultaneously It is designed to light up.

0004 For example, when the light source 4b of a light emitting diode (hereinafter referred to as LED) is turned on, The illumination light emitted from this LED 4b is transmitted through a light guide lens embedded in the key top body 5. The light is emitted from the display section 3b through the key top 6. When the main body 5 is pressed down, the LED 4b is turned off and the lamp is turned on instead. The light sources 4a and 4c are turned on, and these illumination lights are displayed on the corresponding display sections 3a and 3c, respectively. The user can visually know that the operation mode has been switched by displaying the It is designed to be recognized as such.

[0005]

[Problem that the idea aims to solve]

However, in the above-mentioned illuminated knob switch 1, in a predetermined operation mode, The LED light source 4b is turned off, and the lamp light sources 4a and 4c are turned on. However, some of the illumination light from the lamp light source 4a or 4c reaches the light guiding lens 6. It may be incident. As a result, the display section 3b that should be turned off is displayed on another screen. It is said that the display parts 3a and 3c also emit light, and the operation mode is not displayed accurately. There was a problem.

[0006] In addition, in order to avoid the above problem, a partition wall is provided between the light sources 4a, 4c and the light guide lens 6. 7 and 7 are provided in a high standing position to separate the light sources 4a and 4c from these light sources 4a and 4c. Attempts have also been made to prevent the light from leaking and entering the light guiding lens 6. However, when such high partition walls 7, 7 are provided, the key top body 5 moves forward and backward. This requires a large stroke from the panel surface. Not only does it protrude too much, making it impossible to configure the light switch 1 compactly, but the front Depending on the shape of the display parts 3a, 3c, the partition walls 7, 7 may block the illumination light from the light sources 4a, 4c. By blocking more than necessary and casting shadows on the display parts 3a and 3c corresponding to these light sources, There was also the problem that a bright luminescent display could not be obtained.

[0007] This invention was devised in view of the above problem, and is equipped with a key top body. The multiple display sections created can provide accurate luminous display according to the operation mode. The purpose of the present invention is to provide a compact illuminated switch.

[0008]

[Means to solve the problem]

In order to achieve the above purpose, the illuminated switch of the present invention directs illumination light from behind to the front. Equipped with a key top with multiple light-emitting display parts that are transparent to the side and provide light-emitting display, At least one of the plurality of light emitting display parts corresponds to the display part. Light-emitting displays are now performed by guiding illumination light from a light source through a light guide. and the light guiding section is compatible with a light emitting display section other than the above at least one light emitting display section. characterized by having a color that is complementary to the illumination light emitted by the light source. There is.

[0009]

[Effect]

According to the above configuration, the illumination light illuminates at least one display section provided on the key top. Even if light from a light source corresponding to another display section enters the light guide section that guides the Since it has a color that is complementary to this light, it absorbs this light and is almost transparent. Don't miss it. Therefore, the at least one display section is exposed to light leaked from other light sources and incident on the at least one display section. will not be affected by this.

0010

【Example】

Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2 of the accompanying drawings. Explain in detail.

[0011] FIG. 1 is a schematic cross-sectional view showing an illuminated switch 10 according to this embodiment, and FIG. FIG. 3 is a front view of the key top main body as seen from the front side. In the figure, a light switch 10 is a control panel of various electrical devices such as a car stereo. The key top main body 15 attached to the key top main body 12 and the front side of the key top main body 15 (Fig. The three light emitting display parts 13a, 13b, 13c formed on the upper surface) and Three lights are mounted on the board P behind each light emitting display section and are lit individually. light sources 14a, 14b, and 14c, and the configuration up to this point is different from the conventional one. Same as an illuminated switch.

0012 The operation panel 12 is a panel that forms the front side of the case of various electrical devices. This operation panel 12 is provided with a through hole, which is shown in FIG. A key top main body 15 is mounted so as to be movable up and down. In this embodiment, the key top body 15 is made of translucent material such as acrylic resin. It is made of a synthetic resin material that has undergone a A ring 15a is formed as a cover.

[0013] In this embodiment, the display sections 13a, 13b, and 13c are located on the key top body 15. Three are formed on the front side (see Figure 2), and each one has a number such as "1", "・", and "2". Numbers or symbols can be displayed by emitting light by transmitting illumination light from a light source, which will be described later. It has become so.

[0014] Among these display units, the display unit 13b is arranged behind the key top body 15. The illumination light from the LED 14b mounted on the printed circuit board P is transmitted through the light guide section 16. It is designed to emit light to the front side. In this embodiment, this light guide section 16 is The light-guiding lens is made of green-colored translucent resin material, and will be described later. The illumination light from the light sources corresponding to the other display sections 13a and 13c has a complementary color so as to It looks like this.

[0015] Further, a partition wall is provided behind the display portions 13a and 13c so as to correspond to the display portions 13a and 13c. In the area partitioned by 17, 17, light bulb light sources 14a, 14c are attached to the printed circuit board P. is provided. In this example, these light bulbs emit amber-colored illumination light. is configured to do so.

[0016] The present embodiment is configured as described above, and its operation will be explained below. For example, when an electrical device such as a car stereo is turned on and is in its initial state, For example, the LED light source 14b emits light, and directional illumination light is transmitted through the light guide lens 16. As a result, the display section 13b displays "." in a green light-emitting display.

[0017] Next, press the key top body 15 (see Figure 1) to switch the operation mode. Then, the LED light source 14b is turned off and, for example, the light bulb light source 14a is turned on. vinegar Then, the amber-colored illumination light from the light source 14a is directed from the display section 13a to the front surface. The light is transmitted to the side, and a light emission display of "1" is performed in FIG. At this time, a part of the amber illumination light from the light source 14a enters the light guide lens 16. However, this light is colored green because the light guide lens 16 is colored in a complementary color. Since a certain amber color does not pass through, the display section 13b can perform luminescent display while remaining dark. There is no fault. In this way, in the lighted switch 10, each time the operation mode is switched, The number display section will display light emission individually and accurately, allowing the user to select each operation mode. Erroneous visual recognition is effectively prevented.

[0018] Note that when the amber light bulb light source 14c is turned on, a part of this illumination light is guided. Even when the light enters the lens 16, it does not affect the display section 13b in the same way as above. Needless to say. In addition, the display section provided in the illuminated switch is divided into three display sections as in the above embodiment. The invention is not limited to this, and the present invention can be applied as long as two or more display parts are formed. Of course you can.

[0019]

[Effect of the idea]

As explained above, according to the present invention, there are multiple tables provided on the key top body. The display can accurately switch and display the light-emitting display that indicates each mode for each operation mode. This allows the user to see these luminescent displays without error, and also allows the user to - Compact and excellent illuminated switch whose top does not protrude significantly from the panel surface. can provide a

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view of an illuminated switch according to an embodiment of the present invention.

FIG. 2 is a front view of the key top according to the embodiment of FIG. 1;

FIG. 3 is a schematic cross-sectional view showing an example of a conventional illuminated switch.

[Explanation of symbols]

10 Lighted switch 12 Panel surface 13a, 13b, 13c light emitting display section 14a, 14b, 14c light source 15 Key top body 16 Light guide lens 17 Bulkhead P Printed circuit board

Claims (1)

[Scope of utility model registration request] Claim 1. An illuminated switch having a key top with a plurality of light emitting display parts that transmit illumination light from behind to the front side to perform a light emitting display, wherein at least one of the plurality of light emitting display parts The light-emitting display section performs a light-emitting display by guiding illumination light from a light source corresponding to the display section through a light guide section, and the light guide section is configured to perform a light-emitting display by guiding illumination light from a light source corresponding to the display section, and the light guide section is configured to be connected to a light source other than the at least one light-emitting display section. An illuminated switch characterized by having a color complementary to the illumination light emitted by a light source corresponding to a light emitting display section.