TWI382200B - Device for indicator - Google Patents

Description

Indicator light guide

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

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 increasing, such as mobile phones, PDA digital assistants, notebook computers, etc. They all occupy an indispensable position in modern life. In order to make it easier for consumers to use such electronic products, for example, a light-emitting device is provided on the mobile phone or the PDA to indicate to the consumer which mode of execution the electronic product is in.

Commonly found in mobile communication devices, if in standby mode, the indicator light is green lighted; in the call, in the network connection or in the transmission data, it is yellow or flashing yellow light indication; during charging A flashing red light is displayed, and a red light is displayed when charging is completed. These signal indications are intended to make it easier for consumers to use electronic products. In view of the diversification of the functions provided by the current electronic products, in order to respond to the indicator lights presented in the state of use of various functions, a plurality of LED lights are transmitted through the light guiding device, and then mixed on the exit surface. The color of the LED light increases the change in color usage.

In the past, in the case of using a plurality of LED lamps to achieve a plurality of color indicator devices, a plurality of LED lamps of different colors are usually placed at the entrance surface of the light guide column, and each of the LED lamps is transmitted to the exit surface via the light guiding device. Where the indicator light shows the face position. Such a transmission device, as shown in Fig. 1, is often in the case where the display surface of the indicator light is uneven after mixing or left and right. The main reason is as shown in Fig. 2, because the light guiding device has a structure in which the incident surface is larger than the exit surface, so that the incident surface can accommodate most of the LED lights of different colors, thereby achieving the effect of color mixing of the indicator lights; but also because of this, The LED lamp is only distributed in a part of the entrance surface, and it is impossible to exhibit the effect of a uniform light source at the exit surface after each LED lamp is conducted.

It can be seen that how to make the indicator light evenly display when the light is on, so that the user can better understand the color of the indicator light, and then understand the use status of the electronic product, which is the inventor of the present invention and the technical field of the related industry. Those who want to improve the subject.

The main object of the present invention is to provide an indicator light guiding device. Through the light guiding device, a plurality of light sources can be conducted through the light guiding device to achieve a uniform color mixing effect at the exit surface, thereby avoiding a situation in which one side is dark and one side is bright and uneven.

In order to achieve the above object, the present invention provides an indicator light guiding device for uniformly mixing a plurality of light sources, the device comprising: a plurality of incident surfaces, correspondingly placing a plurality of light sources; an exit surface; a plurality of light guide columns, each of the two The light guiding columns have an angle therebetween, such that one ends of the light guiding columns are integrally connected to each other and simultaneously connected to the emitting surface, and the other ends of the light guiding columns are respectively connected to the incident surfaces, and the incident surfaces are incident on the incident surfaces. The light sources are conducted through the light guide columns and then exit the exit surface.

The device may further comprise a light shielding plate disposed between the light guiding columns for blocking the adjacent light guiding columns to prevent the light source from being refracted to the outside through the side surface of the light guiding column during the conduction process, thereby causing The brightness of the light source emitted from the exit surface becomes weak. In order to achieve a better barrier effect, the visor can also be wrapped around the outside of the light guide.

The accommodating surface may also include a accommodating groove for arranging the light source so that the light source can be smoothly incident through the incident surface, and then transmitted through the light guide column and then exited on the exit surface. The light guides can be cylindrical or angular column structures. In order to enable the light sources to be uniformly mixed after being emitted from the exit surface, the angles between the two light guide columns are the same and an acute angle.

The light sources can pass through the LED as a light source for the indicator light. In addition to simply controlling the opening and closing of the light source, the controller can also output a waveform for controlling the brightness of the light sources to achieve a variety of different mixing effects of the indicator light. When the output waveform is a triangular wave, the light source has the same extinguishing time, and the effect of gradual fading can be achieved.

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

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

In order to make the indicator light of the electronic device display its lamp number evenly when displayed, the present invention provides an indicator light guiding device for uniformly mixing the color display of the indicator light. The following description is directed to the indicator light guiding device 18 using two light emitting elements.

An indicator light guiding device 18 is used, which comprises two incident surfaces 24, an exit surface 20, and two light guiding columns 26, and the two end faces of each light guiding column 26 are respectively connected to the same exit surface 20 and Two incident faces 24. The two light guiding columns 26 have an angle between them, so that one end of the light guiding column 26 is integrally connected to each other, so that one end of the connecting portion is the exit surface 20, and the other end of the light guiding rod 26 is the incident surface 24. The light guide column 26 can be a corner column or a cylindrical shape.

The light source is from two light-emitting elements, and includes a first light-emitting element 12 and a second light-emitting element 14, respectively, and the first light-emitting element 12 and the second light-emitting element 14 are respectively disposed at the two incident surfaces 24. After the light sources of the first light-emitting element 12 and the second light-emitting element 14 are respectively incident on the incident surface 24, they can be conducted through the light guide column 26 and emitted to the common exit surface 20. Through the conduction of the light guiding device 18, the two light sources respectively travel in the independent light guiding column 26 during the transmission process, and the two light guiding columns 26 are connected to each other only at the exit surface 20. Therefore, the two light sources will be mixed first when the two light guiding columns 26 are connected to each other, and then emitted from the exit surface 20, so that the light color of the indicator light can be expressed in a relatively uniform manner.

Please refer to FIGS. 4A and 4B for a schematic view of the second and third embodiments of the present invention.

In the same manner as the first embodiment, when the indicator light guiding device 18 of the two light-emitting elements is used, the device comprises an exit surface 20, two incident surfaces 24, and two light guiding columns 26, and two light guiding columns 26 There is an angle between the two, and is connected to the same exit surface 20 and the two incident surfaces 24. Because of the angle between the two light guiding columns 26, one end of the light guiding column 26 is integrally connected to each other, and one end of the connecting is the exit surface 20, and the other end of the light guiding rod 26 is the incident surface 24. The light guide column 26 can be a corner column or a cylindrical shape. The first light-emitting element 12 and the second light-emitting element 14 are respectively disposed on the two incident surfaces 24; the two incident surfaces 24 are respectively provided with a receiving groove 28 for accommodating the first light-emitting element 12 and the second light-emitting element 14 respectively. At the entrance face 24. When the light sources of the first light-emitting element 12 and the second light-emitting element 14 are incident on the incident surface 24, they can be conducted through the light guide bar 26 and emitted from the common exit surface 20.

At the same time, a light shielding plate 22 is disposed between the two light guiding columns 26 for isolating between the two light guiding columns 26. The main purpose is to prevent part of the light source from being refracted to the outside through the side surface of the light guide column 26 during the conduction of the incident light source in the light guide column 26, thereby causing the brightness of the light source emitted from the exit surface 20 to be weak. Therefore, by the barrier of the light shielding plate 22, a better light source brightness can be obtained at the exit surface 20; and in order to better the barrier effect, the light shielding plate 22 can also be placed outside the light guide column 26 in a surrounding manner.

In order to make the range of the light source to be concentrated at the exit surface and to obtain a better light guiding effect, the angle between the two light guiding columns is designed to be an acute angle.

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

The three light-emitting elements are placed at the three incident surfaces 24, and the effect of uniform mixing is achieved at the common exit surface 20. The principle is the same as that of the previous embodiment, and only a structure of the light guide 26 is added to achieve the use. The light sources of the three different color lights are mixed into a color change of the color of the indicator light.

Please refer to the 6A and 6B diagrams for controlling the output waveform of the light source.

In the selection of a plurality of light-emitting elements to be mixed, a change in a plurality of colors can be achieved by using the light-emitting elements of the switch. For example, if the light source uses two LEDs of different colors, one can be turned on and off at the same time to achieve three color changes; if the color change is more diverse, a controller can be used to output the LED. The wave pattern is designed as the output of a triangular wave. The single LED or the mixed LED is increased and decreased due to the change of voltage with time, and the flickering effect is gradually faded.

It can be seen from the above embodiments that, by using the present invention, an indicator light mixed by a plurality of light sources can be uniformly mixed at the exit surface after being conducted.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention are encompassed by the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

2. . . PDA

4. . . Screen

6. . . Selection button

8. . . Input key

10. . . Indicator light

12. . . First illuminating element

14. . . Second illuminating element

16. . . Third illuminating element

18. . . Light guiding device

20. . . Exit surface

twenty two. . . Shading

twenty four. . . Incident surface

26. . . Light guide column

28. . . Locating slot

Figure 1 is a schematic diagram of a conventional PDA and its indicator light.

Figure 2 is a schematic view of a conventional light guide light guide.

Figure 3 is a schematic view of a first embodiment of the present invention.

Figure 4A is a schematic view of a second embodiment of the present invention.

Figure 4B is a schematic view of a third embodiment of the present invention.

Figure 5 is a schematic view of a fourth embodiment of the present invention.

Figure 6A is a diagram showing the output waveform of the first light-emitting element lamp.

Figure 6B is a diagram showing the output waveform of the second light-emitting element lamp.

12. . . First illuminating element

14. . . Second illuminating element

18. . . Light guiding device

20. . . Exit surface

twenty four. . . Incident surface

26. . . Light guide column

Claims (12)

An indicator light guiding device for uniformly mixing a plurality of light sources, the device comprising: a plurality of incident surfaces corresponding to the light sources; an exit surface; and a plurality of light guide columns, wherein each of the two light guide columns has an angle Having one end of the light guiding rods connected to each other and connected to the emitting surfaces at the same time, the other ends of the light guiding columns are respectively connected to the incident surface, and the light sources incident from the incident surfaces pass through the light source After the light guide is conducted, it exits on the exit surface. The indicator light guiding device of claim 1, further comprising: at least one visor disposed between the light guiding columns to prevent the light sources that are transmitted by the light guiding columns from interacting with each other. The indicator light guiding device of claim 2, wherein the visor surrounds the light guiding columns. The indicator light guiding device of claim 1, wherein the incident surface further comprises a receiving groove for arranging the light sources. The indicator light guiding device of claim 1, wherein the light guiding columns are a cylinder. The indicator light guiding device of claim 1, wherein the light guiding columns are a corner column. The indicator light guiding device of claim 1, wherein an angle between the light guiding columns is an acute angle. The indicator light guiding device of claim 1, wherein the light sources are composed of a plurality of LEDs of different colors. The indicator light guiding device of claim 1 further includes a controller for outputting a waveform to control the light and dark changes of the light sources. The indicator light guiding device of claim 9, wherein the waveform is a triangular wave. A light guiding device includes at least two light guiding columns, wherein the two light guiding columns have an angle therebetween, so that one end of the light guiding column is integrally connected to each other, wherein an end surface of one end of the light guiding column connected to each other forms an exit surface, and the end surfaces of the other end end respectively Form an incident surface. An indicator light guiding device, comprising: at least two light guiding columns, wherein an angle between the two light guiding columns is such that one ends of the light guiding columns are integrally connected to each other, wherein an end surface of one end of the light guiding columns connected to each other forms an exit surface, The end faces of the other end respectively form an incident surface; and at least two light sources are respectively disposed on the incident surface, and the light generated by the light source is simultaneously transmitted by the incident surface and transmitted through the light guide column, so as to be conducted. The light is uniformly mixed at one end of the light guide column and is emitted from the exit surface.