JPS6332022Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lens that doubles as a meter illumination and warning light for automobiles, etc.

Currently, there are so many items displayed on car meter dials that they cannot fit into the limited visible space inside the steering wheel and are sometimes hidden behind the steering wheel. However, there are not only technical problems but also drawbacks such as being difficult to see.

The present invention provides a meter lens that reduces the number of parts, is easy to see, and fits into the viewing space, and can serve as illumination, display, and warning with a single lens. The purpose is to

For this reason, the lens of the present invention is designed to receive light emitted from an appropriate number of illumination bulbs and warning color bulbs, with one end surface corresponding to the bulbs and one end facing toward the dial. The lens is made of an integrally molded transparent lens having a bent part bent at the same time and an end face that diffuses and emits light toward the dial, and the bent part has the one end face that diffuses and emits light toward the dial. An intermediate reflective surface that reflects light from an end surface toward the other end surface is provided, and an appropriate amount of light reflected from the intermediate reflective surface is provided between the intermediate reflective surface and the other end surface for each display. It is characterized by having a reflective display engraving.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is an illumination bulb, 2 is a warning light color bulb, and this warning light color bulb 2 is provided with a color filter 2a. Reference numeral 3 denotes a transparent lens whose lens plate is bent at an acute angle, and one opposing plate portion 3a has one end surface 4 corresponding to the illumination bulb 1 so as to receive light emitted from the illumination bulb 1, and a warning plate. One end surface 5 corresponding to the light color bulb 2 is formed to receive light emitted from the light color bulb 2, and as shown in FIG. 2, both opposing plate portions 3a,
3b is formed with a bent part 6 that is bent at an acute angle toward the dial 8, and the other opposing plate part 3b has a semicircular arc-shaped cross section that diffuses and radiates light toward the dial 8. An end face 7 is formed. Further, one opposing plate portion 3a has a bent portion 6 with one end surface 4 as a starting end.
Multiple end-wide optical paths
and a plurality of constant width optical paths Y having a constant width are formed,
These are arranged alternately. The bent portion 6 has an intermediate reflective surface 9 that reflects light from one end surface 4 and 5 toward the other end surface 7, and between the intermediate reflective surface 9 and the other end surface 7. , respectively, have display engravings 10 and 11 for reflecting an appropriate amount of light reflected from the reflecting surface 9 for normal display and warning display. Note that 12 shown in FIG. 2 is a pointer, and 13 is a non-reflective lens.

In the transparent lens 3 configured as shown in the figure, light exiting the illumination bulb 1 enters from one end surface 4 of the lens 3, and is reflected at the intermediate reflective surface 9 of the bent portion 6 while being widely diffused in the width direction. The light comes out diagonally upward from the other end surface 7 and illuminates the dial 8. Further, a part of the light reflected by the intermediate reflective surface 9 is reflected by the display engraving 10 and serves the purpose of display. On the other hand, the light from the warning light color bulb 2 is filtered by a color filter 2a.
It is changed to the color of the filter 2a, such as red or blue, enters from one end 5 of the lens 3, travels in a substantially constant direction without being diffused, is reflected by the intermediate reflective surface 9, changes direction, and is engraved with a display. 11, it is strongly reflected in a color different from the color of the illumination light, enters the line of sight, and serves as a warning.

In this way, in the present invention, the bent portion of the transparent lens has an intermediate reflective surface, and the light from the illumination bulb and the warning color bulb, which are incident from one end surface of the lens, is reflected by the intermediate reflective surface. In addition to being reflected towards the dial and being diffusely emitted from the other end to illuminate the dial, some of the light rays are engraved into the display for normal and warning displays. A transparent lens can serve the purpose of lighting, display, and warning, thus reducing the number of parts and making it possible to express a three-dimensional design with the display floating in front of the dial. Also, since the display can be placed in a location separate from the dial, the display remaining on the dial can be easily placed, making it possible to display a large, easy-to-read display.

In addition, the constant width optical path through which the light from the warning color bulb enters has a constant width and therefore enters the display inscription without being diffused, so the intensity of the light is high. Since the light from the illumination bulb is diffused, the intensity of the light incident on the display inscription is low, so that the display and warning lights are differentiated not only by color but also by intensity, and therefore The difference between the two is clearly discernible.

Furthermore, the wide optical path into which the light from the illumination bulb enters becomes wider as it approaches the bend, so the light from the illumination bulb is diffused and exits from the other opposing plate. Therefore, a wide area can be irradiated with a small number of lighting bulbs 1.Also, when a dial is illuminated with a large number of bulbs, the strength of the light will vary in spots, but with the present invention, the light is diffused, so the strength of the light can be reduced. is reduced,
The dial becomes easier to read.

[Brief explanation of drawings]

The drawing shows one embodiment of the present invention.
The figure is a plan view, FIG. 2 is a sectional elevational view taken along section line A--A in FIG. 1, and FIG. 3 is a perspective view. 1...Lighting bulb, 2...Warning light color bulb, 3...Transparent lens, 4, 5...One end surface, 6...
...Bending portion, 7...Other end surface, 8...Dial, 9...
Intermediate reflective surface, 10, 11...display engraving.

Claims (1)

[Claims for Utility Model Registration] A pair of opposing plate parts are formed by bending a transparent lens plate, and one of the opposing plate parts has a plurality of widening optical paths that widen toward the bent part, and a plurality of optical paths having a constant width. A plurality of constant width optical paths are formed, and a light receiving surface for receiving light from an illumination bulb is formed at a starting end of the widening optical path, and a light receiving surface for receiving light from a warning color bulb is formed at a starting end of the constant width optical path. forming a light-receiving surface for receiving light; forming an intermediate reflecting surface on the bent portion of the transparent lens plate to cause the light of each optical path to enter the other opposing plate portion; and forming an intermediate reflecting surface on the other opposing plate portion; The meter is characterized in that display engravings are formed to reflect an appropriate amount of light reflected from the surface for each display, and the dial is further arranged in the radiation direction of the light emitted from the other opposing plate part. A lens that doubles as an illumination and warning light.