JPS5810106Y2 - Meter lighting system - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lighting device for a meter, and is intended to provide a novel lighting device that is convenient for use in a meter attached to an electronic device.

Conventionally, in this type of meter, for example, a meter is housed in a non-light-transmitting frame, and a light-transmitting scale plate fitted on the back of the frame is illuminated from behind with a lamp or the like.

In this case, an opaque frame is used because the scale plate allows light from behind to pass through, so if some of the light from behind passes through the frame and hits the front of the scale plate, it will cause illumination. This is because the effect is significantly reduced, so it is necessary to block the light.

However, the above conventional method requires a device to diffuse the light hitting the scale plate in advance, the light source requires consideration to disperse the light over a wide range, a reflector is required, and, of course, a diffuser device is required. Not only does this require a case in which a reflector, a light source, etc. are housed, which makes the structure quite complicated, but even after taking various considerations into consideration, there are still drawbacks such as light spots in the illumination.

The present invention seeks to provide a new and highly convenient lighting device that is free from such drawbacks.

To explain the illustrated embodiment, a box 1 made of a transparent material with a front opening is provided, and the outer peripheries of the front and rear surfaces of the box 1 are chamfered to form slopes 2 and 3, and the inner side of the rear wall is chamfered. A recess 4 is provided in the box body 1, a translucent case meter 5 is fitted into the front opening of the box 1, and a lamp 6 is disposed within the recess 4, so that the light from the lamp 6 is directly emitted. and indirectly through the box 1 to the translucent case of the meter 5 through two routes.

The depression 4 is not limited to this, and may be a through hole or the like.

Further, the lamp 6 is not limited to this, and may be any other variety of light sources.

Note that it is convenient if the box body 1 is formed by synthetic resin molding.

It may be convenient depending on the case if the outer periphery of the box body 1 is coated with a light-shielding paint, vapor-deposited with metal, or other means to prevent light from leaking, since this will not affect other areas.

The case of the meter 5 may be formed by molding with transparent synthetic resin, etc., and the scale plate inside the meter case may be made of
It may be opaque.

Note that if the scale plate is semi-transparent, some light from behind will also shine through.

According to the above configuration, the light from the light source is sent directly to the back surface of the translucent case of the meter 5, and is also indirectly sent to the periphery of the translucent case through the box 1. is brought into the meter through the meter, and the inside of the meter is illuminated.

Note that the light passing through the box 1 is reflected and refracted by the slopes 2 and 3 of the box 1.

Therefore, according to the present invention, the light-transmitting cased meter 5 is fitted into the light-guiding box 1, and the light from a light source such as a lamp placed in a recess or through hole in the rear wall of the box is provided. is sent directly to the back of the transparent case of the meter 5, and also indirectly to the surroundings of the transparent case through the box 1, and the light from both routes is supplied into the meter 5 through the transparent case. Since the inside of the meter 5 is illuminated, the light from the light source is not wasted, highly efficient illumination can be obtained, and a significantly superior illumination effect can be obtained.

Then, light enters the meter 5 from the side, illuminating the inside of the meter 5, and the front side of the scale plate is illuminated by light. Since light enters uniformly from the circumferential surface of the meter 5, the meter 5 is evenly illuminated.

In addition, since the scale plate of the meter is made of a non-transparent material, it is possible to freely use beautiful materials such as metal plates, and it is possible to obtain a sense of beauty that has not been previously available.

Furthermore, there is no need for a light diffuser, a reflector, etc. as in the past, and of course the light source only needs to be placed in one place, making the structure significantly simpler and cheaper, making it convenient for use in meters attached to electronic equipment, etc. This is extremely useful in practice.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being an exploded perspective view and FIG. 2 being a cross-sectional plan view. 1... Box body, 2, 3... Slope, 4...
... hollow, 5 ... meter, 6 ...
lamp.

Claims (1)

[Scope of utility model registration request] A box body 1 made of a transparent material with a front opening is provided, and the outer peripheries of the front and rear surfaces of the box body 1 are chamfered to form slopes 2.3, and a depression 4 or a through hole is provided on the inside of the rear wall. Box body 1
A light-transmitting case person's meter 5 is fitted in the front opening of the case, and a light source such as a lamp 6 is arranged in the recess 4 or the through hole,
A meter illumination device configured to send light from the lamp or the like to the translucent case of the meter 5 through two routes: directly and indirectly through the box body 1.