CN101725907B - Indicator Light Guide - Google Patents

Abstract

The utility model provides an indicator light guiding device, a plurality of light sources of homogeneous mixing, it includes a plurality of incident planes, correspond and place a plurality of light sources, single emergent plane, and a plurality of leaded light post constitute, every two leaded light posts have an contained angle between and make a plurality of leaded light post's one end interconnect integrative to connect in common emergent plane simultaneously, a plurality of leaded light post other ends are then connected respectively in a plurality of incident planes, and the light source is incided by different incident planes, after the conduction of leaded light post, in common emergent plane emergence, make the indicator light colour after the mixture can the uniform display.

Description

Indicator Light Guide

technical field

The invention relates to a light guiding device, in particular to a light guiding device for an indicator light.

Background technique

With the advent of the information age, the pace of digitalization is getting faster and faster, and the importance of various mobile electronic products for consumers is also increasing day by day, such as: mobile phones, PDA digital assistants, notebook computers, etc. It has occupied an indispensable position in modern life. In order to enable consumers to use such electronic products more conveniently, for example, an indicator light device is provided on a mobile phone or a PDA to instruct consumers to know which execution mode the electronic product is in.

It is commonly used in mobile communication devices. If it is in the standby state, the indicator light will show a green light; during a call, network connection or data transmission, it will show a yellow or flashing yellow light; when it is charging, it will show a flashing red light , and a red light will appear when charging is complete. The purpose of these light indications is to make consumers more convenient to use electronic products. As the functions provided by current electronic products are also becoming more and more diversified, in order to respond to the indicator lights displayed under the use status of various functions, multiple LED lights are mixed with each other on the exit surface after being transmitted through the light guide device. The color of the LED light increases the change in color usage.

In the past, in the indicator device that uses multiple LED lights to achieve multiple colors, usually multiple LED lights of different colors are placed on the incident surface of the light guide column, and each LED light is guided to the exit surface through the light guide device. , which is the position of the indicator light display surface. Such a transmission device, as shown in FIG. 1 , often presents uneven mixing or left and right brightness and darkness on the display surface of the indicator light. The main reason, as shown in Figure 2, is that the light guide device has a structure in which the incident surface is larger than the outgoing surface, so that the incident surface can accommodate many LED lights of different colors to achieve the effect of color mixing of the indicator light; but also because of this, causing LED The lights are only distributed on a part of the incident surface, and the effect of uniform light source cannot be presented on the exit surface after each LED light is transmitted.

It can be seen from this that how to make the indicator light evenly displayed when the light is on, so that the user can understand the color of the indicator light more clearly, and then understand the corresponding use status of the electronic product, is the inventor of this case and a person in the technical field engaged in this related industry , a topic that needs to be improved urgently.

Contents of the invention

The main purpose of the present invention is to provide a light guiding device for an indicator light. Through the light guide device, multiple light sources can be guided by the light guide device to achieve a uniform color mixing effect on the exit surface, avoiding the situation where one side is darker and the other side is brighter and uneven.

In order to achieve the above purpose, the present invention proposes a light guide device for indicator lights, which can evenly mix a plurality of light sources. The device includes: a plurality of incident surfaces, correspondingly placed a plurality of light sources; There is an included angle between the light guide rods, so that one end of the light guide rods is connected to each other and connected to the outgoing surface at the same time, and the other ends of the light guide rods are respectively connected to the incident surfaces, and from the incident surfaces The incident light sources are transmitted on the exit surface after being transmitted by the light guide columns.

The device may further include a shading plate placed between each light guide column to block adjacent light guide columns, so as to prevent part of the light source from being refracted to the outside through the side surface of the light guide column during the transmission of the light source, resulting in The brightness of the light source emitted from the exit surface becomes weaker. In order to achieve a better blocking effect, the shading plate can also be wrapped around the outside of the light guide column.

An accommodating groove can also be included at the incident surface for disposing the light source, so that the light source can smoothly enter through the incident surface, and then be transmitted by the light guide column to exit at the exit surface. The light guide columns can be cylindrical or angular column structures. Moreover, in order to make the light sources uniformly mix after emitting from the exit surface, the included angles between the two light guide columns are all the same and are acute angles.

These light sources can be used as light sources for indicator lights through LEDs. In addition to simply controlling the on and off of the light sources, the controller can also output a waveform to control the brightness and darkness of these light sources, so as to achieve various mixed effects of the indicator lights. When the output waveform is a triangular wave, the on and off times of these light sources are the same, which can achieve the effect of fading on and off.

The preferred embodiments of the present invention and their effects are described as follows in conjunction with the drawings.

Description of drawings

FIG. 1 is a schematic diagram of a known PDA and its indicator lights.

FIG. 2 is a schematic diagram of a conventional light guiding device for indicator lights.

Fig. 3 is a schematic diagram of the first embodiment of the present invention.

FIG. 4A is a schematic diagram of the second embodiment of the present invention.

Fig. 4B is a schematic diagram of the third embodiment of the present invention.

Fig. 5 is a schematic diagram of a fourth embodiment of the present invention.

FIG. 6A is an output waveform for controlling the lamp of the first light-emitting component.

FIG. 6B is an output waveform for controlling the lamp of the second light-emitting component.

Explanation of main component symbols

2..........PDAs

4..........Screen

6..........Select key

8..........Enter key

10...........Indicator light

12..........The first light-emitting component

14..........Second light-emitting component

16...........The third light-emitting component

18..........Light guide device

20.........Exit surface

22...........Visor

24.........incident surface

26..........Light guide column

28..........Accommodating tank

Detailed ways

Please refer to FIG. 3 , which is a schematic diagram of the first embodiment of the present invention.

In order to make the indicator light of the electronic device uniformly present its signal representation when displaying, the present invention proposes a light guiding device for an indicator light, which is used to uniformly mix and display the color of the indicator light signal. The following is an explanation for the indicator light guide device 18 using two light-emitting components.

Utilize a kind of indicator lamp light guide device 18, this device comprises two incidence surfaces 24, an exit surface 20, and two light guide rods 26, and the two end faces of each light guide rod 26 are respectively connected to the same exit surface 20 and the same The two incident surfaces 24 . There is an included angle between the two light guide rods 26 , so that one end of the light guide rods 26 is connected to each other, so the connected end is the outgoing surface 20 , and the other end of the light guide rods 26 is the incident surface 24 . The light guide column 26 can be a corner column or a cylinder.

The light source comes from two light-emitting components, including a first light-emitting component 12 and a second light-emitting component 14 respectively, and the first light-emitting component 12 and the second light-emitting component 14 are respectively placed on the two incident surfaces 24 . After the light sources of the first light-emitting component 12 and the second light-emitting component 14 are respectively incident on the incident surface 24 , they can be transmitted through the light-guiding rod 26 and output on the common output surface 20 . Through the conduction of the light guide device 18 , the two light sources travel in independent light guide rods 26 during transmission, and the two light guide rods 26 are connected to each other only at the exit surface 20 . Therefore, the two light sources will be mixed at the place where the two light guide columns 26 are connected together, and then emitted from the exit surface 20, so that the light color of the indicator light can be displayed in a more uniform manner.

Please refer to FIGS. 4A and 4B , which are schematic diagrams of the second and third embodiments of the present invention.

Same as the first embodiment, when using the indicator lamp light guide device 18 of two light-emitting components, the device includes an exit surface 20, two incident surfaces 24, and two light guide columns 26, and the gap between the two light guide columns 26 is It has an included angle and is connected to the same outgoing surface 20 and the two incident surfaces 24 . There is an included angle between the two light guide rods 26 , so that one end of the light guide rods 26 is connected to each other, and the connected end is the outgoing surface 20 , and the other end of the light guide rods 26 is the incident surface 24 . The light guide column 26 can be a corner column or a cylinder. Place the first light-emitting component 12 and the second light-emitting component 14 at the two incident surfaces 24 respectively; the two incident surfaces 24 are respectively provided with a receiving groove 28 to accommodate the first light-emitting component 12 and the second light-emitting component 14 respectively at the incident face 24. And when the light sources of the first light-emitting component 12 and the second light-emitting component 14 are incident on the incident surface 24 , they can be transmitted through the light-guiding rod 26 and output on the common output surface 20 .

At the same time, a light shielding plate 22 is arranged between the two light guide columns 26 for isolating between the two light guide columns 26 . The main purpose is to avoid that part of the light source will be refracted to the outside through the side surface of the light guide rod 26 during the transmission process of the incident light source in the light guide rod 26 , thereby causing the brightness of the light source emitted from the exit surface 20 to be weakened. Therefore, better brightness of the light source can be obtained on the outgoing surface 20 by the blocking of the light shielding plate 22 ; and in order to make the blocking effect better, the light shielding plate 22 can also be placed outside the light guide column 26 in a surrounding manner.

In order to concentrate the range of the light source on the exit surface and obtain a better light guiding effect after being transmitted, the angle between the two light guiding columns is designed to be an acute angle.

Please refer to FIG. 5 , which is a schematic diagram of a fourth embodiment of the present invention.

Using three light-emitting components placed on three incident surfaces 24 to achieve a uniform mixing effect at the common exit surface 20, the principle is the same as that of the previous embodiment. The light sources of three different color lights are mixed to form a variety of color changes of indicator light colors.

Please refer to FIG. 6A and FIG. 6B for output waveforms of the control light source.

In the choice of mixing multiple light-emitting components, switching each light-emitting component can be used to achieve a variety of color changes. For example: when the light source uses two LEDs of different colors, one can be turned on and the other turned off and turned on at the same time to achieve three color changes; to make the color change more diverse, a controller can be used to control the LED The output waveform is designed as a triangular wave output. A single LED or a mixed LED will produce a flickering effect of gradually brightening and dimming due to the voltage increasing and decreasing with time.

From the above embodiments, it can be known that the present invention can make the indicator light formed by mixing a plurality of light sources achieve uniform mixing effect at the exit surface after conduction.

Although the technical content of the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention, and any modifications and modifications made by those skilled in the art without departing from the spirit of the present invention should be included in the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (11)

1. light guide device of indicating lamp, in order to a plurality of light sources of even mixing, this device comprises:

A plurality of planes of incidence, corresponding those light sources of placing;

One exit facet; And

A plurality of leaded light posts; Wherein per two leaded light intercolumniations all have an angle; Make an end of those leaded light posts be interconnected in one, and be connected in those exit facets simultaneously that those leaded light post other ends then are connected to this plane of incidence; And by those light sources of those plane of incidence incidents after those leaded light posts conduction, in this exit facet outgoing.

2. light guide device of indicating lamp as claimed in claim 1 is characterized in that: more comprise:

At least one shadow shield places between those leaded light posts, influences each other in order to those light sources of avoiding those leaded light post conduction.

3. light guide device of indicating lamp as claimed in claim 2 is characterized in that: this shadow shield is surrounded on those leaded light posts.

4. light guide device of indicating lamp as claimed in claim 1 is characterized in that: this plane of incidence more comprises a storage tank, in order to dispose those light sources in interior.

5. light guide device of indicating lamp as claimed in claim 1 is characterized in that: each leaded light post of those leaded light posts is cylindric.

6. light guide device of indicating lamp as claimed in claim 1 is characterized in that: each leaded light post of those leaded light posts is the corner post shape.

7. light guide device of indicating lamp as claimed in claim 1 is characterized in that: the angle of those leaded light intercolumniations is an acute angle.

8. light guide device of indicating lamp as claimed in claim 1 is characterized in that: those light sources are that a plurality of LED by different colours constitutes.

9. light guide device of indicating lamp as claimed in claim 1 is characterized in that: more comprise a controller, change in order to export those light source light and shades of a Waveform Control.

10. light guide device of indicating lamp as claimed in claim 9 is characterized in that: this waveform is a triangular wave.

11. a light guide device of indicating lamp, this device comprises:

At least two leaded light posts, two leaded light intercolumniations have an angle, make an end of this leaded light post be interconnected in one, and wherein the end face of the interconnective end of this leaded light post forms an exit facet, and the end face of the other end then forms a plane of incidence respectively; And

At least two light sources; Be arranged at this plane of incidence respectively; The light that this light source is produced simultaneously is by the incident of this plane of incidence, and via the conduction of this leaded light post, be uniformly mixed back and by this exit facet outgoing of an end that makes this light of being conducted be connected at this leaded light post.

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