CN2169187Y

CN2169187Y - Lighting board

Info

Publication number: CN2169187Y
Application number: CN 93239118
Authority: CN
Inventors: 刘越; 余忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-11
Filing date: 1993-08-11
Publication date: 1994-06-15
Anticipated expiration: 2003-08-11

Abstract

The utility model relates to a lighting panel device, which is that an LED element 8 is used as a light source; a pattern printing layer 2 is arranged on an optical conductor plate 1; the pattern symbol 3 on the pattern printing layer is transparent; the rest part 4 is shading; the lower side of the optical conductor plate is provided with a reflecting layer 5; the LED element 8 is positioned under the shading part 4 between the printing layer 2 and the reflecting layer 5. The utility model make an instrument illumination panel have the advantages of capability of thinning, miniaturization, compact structure, uniform illumination intensity, comfort visual sense, low cost, long service life, etc.

Description

Lighting board

The utility model is relevant with the dial illumination device.

Traditional dial illumination device, a large amount of LED elements gathers below the prompting sign of need illuminations, scale, character pattern, also need make LED element to illuminated face that suitable distance is arranged, just can reach enough illuminance and illumination uniformities, cost is higher, the soft property of light is poor, and the dial illumination panel construction is thick thick and not compact.

The purpose of this utility model provides a kind of structure slimming, and is with low cost, and illuminance evenly is fit to, the illumination panel device that light is soft.

The utility model is achieved in that

Graphic printing layer 2 is arranged above the optical conductor plate 1.The graphical symbol 3 of printed layers 2 is transparent, all the other position 4 shadings.Reflector layer 5 is arranged below the optical conductor plate 1, and LED element 8 is under the shading position 4 between printed layers 2 and the reflector layer 5.

The bottom surface of optical conductor plate 1 of the present utility model is with respect to the graphical symbol 3 fluted 6 of graphic printing layer 2, bottom land is an optics delineation face 7, reflector layer 5 is the reflectorized material coat of optical conductor plate 1 surrounded surface and bottom surface, and every face is equipped with a LED element 8 at least around the optical conductor plate 1.

Optical conductor plate 1 of the present utility model, between the wiring board 9 by be divided into several cavitys 10 every tabula rasa 12.The four sides of cavity 10 and bottom surface are for applying the reflector layer 5 of reflectorized material.One deck LED element 8 is housed in each cavity 10 at least, is positioned at every tabula rasa 12 under the shading position of printed layers.

Porose 15 on the optical conductor plate 1 of the present utility model, instrument axis 16 is positioned at the center, hole, and Light conducting pointer 11 is housed on it.With side face light shield 13 is arranged above the Light conducting pointer seat.The hand rest upper end has a toroidal reflective surface 14 and light shield 13 to form toroidal cavity, the hand rest lower end has toroidal reflective surface 17 to form garden platform shape cavity, above the Light conducting pointer 11 is smooth flat 20, for optics delineation face 19, has reflectorized material to apply reflector layer 18 on it below.

The utility model is that the garden heart constitutes the garden arc-shaped cavity every tabula rasa with axle 16.

The inclination angle of ring reflecting surface of the present utility model is 45 °.

In the middle of the optical conductor plate 1 of the present utility model window 21, printed layers 2 being arranged all is shading.Digital runner 22 is housed below the window 21.

LED element of the present utility model is positioned at the side of lighting figure, and with refraction, transmit by reflection, total reflection mode in optical conductor plate for the light of launching, finally illuminate panel board with soft moderate illuminance, visual sense feeling is comfortable, the one-piece construction thin typeization, compact conformation, volume is little, long service life.With low cost.

Following is accompanying drawing of the present utility model:

Fig. 1 is embodiment 1 elevational cross-sectional view.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is embodiment 2 elevational cross-sectional view.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is embodiment 3 structural drawing.

Fig. 6 is embodiment 4 structural drawing.

Fig. 7 is embodiment 5 structural drawing.

Fig. 8 is embodiment 6 structural drawing.

Following is embodiment of the present utility model:

Embodiment 1:

Optical conductor plate 1 upper surface has graphic printing layer 2.Wherein prompting indicates scale, character such as the 3 blank printings of digital figure.All the other positions 4 are black or other retaining light source colour.Optical conductor plate 1 lower surface and peripheric surface have the reflector layer 5 that applies the white reflection material, make figure present white under natural light.Groove 6 is corresponding to upper surface figure 3, and its bottom is for the optics hair side or evenly delineate face 7.Two LED elements respectively are equipped with as light source in the side around the optical conductor 1.

During energized, the light that LED element 8 penetrates transmits in the total reflection mode with through more than 5 reflection mode of reflector layer in optical conductor 1, at groove, the total reflection of light and conditioned reflex are destroyed by optics delineation face 7, part light is refracted to reflector layer 5 secondary reflection downwards, arrives figure 3 with the reflected light that makes progress, and reflects optical conductor 1, make figure 3 be luminance, for human eye observed.

The LED element is monochromatic, and the panel integral thickness is less than 1.5mm.

Embodiment 2:

Optical conductor plate 1 is made for PVC or other transparent material.Optical conductor plate 1 is divided into two air leaded light cavitys 10 by what opaque material was made every tabula rasa 12 between the wiring board 9.At least one LED element 8 is housed in each cavity.The LED element can have different colours.All the other structures are with embodiment 1.Present embodiment is applicable to the multi-color illumination of whole graphics panel, and its integral thickness can be less than 3mm.

Embodiment 3:

Present embodiment is applicable to automobile instrument.

Porose 15 on the optical conductor plate 1, Light conducting pointer 11 is housed on the instrument axis 16, two annular 45 fully reflecting

surfaces

14,17 are arranged in the hand rest.The hand rest top is provided with the light shield 13 of anti-light leak.Pointer 11 is the optics wedge shape, and last plane is a smooth flat 20.Lower inclined plane is an optics hair side 11, penetrates at hair side 11 and syringe needle 45 metal plate and is coated with reflector layer 18 on the face 23, and the color of reflector layer can optionally be determined.All the other structures are with embodiment 1.

When energising, the light that the LED element sends is through optical conductor plate 1 total reflection, reflection, enter Light conducting pointer 11 after the refraction, two annular 45 fully reflecting surfaces 17 through hand rest, enter needle body after 15 reflections and shine on the optics hair side 19, destroyed at this total reflection condition, light two directions up and down penetrates.Under penetrate light by reflector layer 18 secondary reflection again, with on penetrate light, smooth flat 20 reflects needle body through the pointer top, by human eye is accepted.The whole needle body of Light conducting pointer 11 all is luminance.The quantity of LED element is selected in brightness that can be as required, makes it to be complementary with the brightness of instrument face plate figure, improves the euphorosia degree.

Embodiment 4:

Optical conductor plate 1 by constitute two arc air leaded light cavitys 10 every tabula rasa 12, all has the different LED element of color between the wiring board 9 in each cavity 10.For panel provides multi-color illumination.All the other structures are identical with embodiment 3.

Embodiment 5:

Window 21, printed layers 2 whole shadings are arranged in the middle of the optical conductor plate 1.Digital runner 22 is housed below the window.Window 21 is a lower inclined plane 23 at the face near digital runner 22 ends.All the other structures are with embodiment 1.

The light transmission of LED element emission will reflect downwards according to refraction law to lower inclined plane 23, evenly illuminate the display surface of digital runner 22.

Embodiment 6:

Optical conductor plate 1, shadow shield 12 has window 21 in the middle of the cavity that wiring board 9 forms, printed layers 2 whole shadings, four side cavity edge of window have 1 LED element at least.Digital runner 22 is housed below the window.Near the optical conductor plate length of digital runner 22 ends greater than wiring board length, constitute the inclined-plane 24 of leaded light cavity.

Penetrate light on the edge that LED element 8 sends and reflected downwards, under its edge, penetrate 22 marginal portions of the bright digital runner of illumination, make the luminance proportion in itself and stage casing by optical conductor plate.According to actual needs, can use a plurality of LED elements to improve visual effect.

Claims

1, illumination panel device.With LED element (8) as light source, graphic printing layer (2) is arranged above the optical conductor plate (1), the graphical symbol (3) of printed layers (2) is transparent, all the other positions (4) shading, reflector layer (5) is arranged below the optical conductor plate (1), it is characterized in that LED element (8) is positioned under the shading position (4) between printed layers (2) and the reflector layer (5).

2, illumination panel device according to claim 1, it is characterized in that the graphical symbol 3 fluted (6) of the bottom surface of optical conductor plate 1 with respect to graphic printing layer (2), bottom land is an optics delineation face (7), reflector layer 5 is the reflectorized material coat of optical conductor plate (1) surrounded surface and bottom surface, and the every all around face of optical conductor plate (1) is equipped with a LED element (8) at least.

3, illumination panel device according to claim 1, it is characterized in that optical conductor plate (1), between the wiring board (9) by being divided into several cavitys (10) every tabula rasa (12), there is the reflector layer (5) that applies reflectorized material the four sides of cavity (10) and bottom surface, each cavity (10), in a LED element (8) is housed at least, be positioned at every tabula rasa (12) under the shading position of printed layers.

4, according to claim 1 or 2 or 3 described illumination panel devices, it is characterized in that optical conductor plate (1) upward porose (15), instrument axis (16) is positioned at the center, hole, Light conducting pointer (11) is housed on it, with side face light shield (13) is arranged above the hand rest, the hand rest upper surface has a toroidal reflective surface (14) and light shield (13) to form toroidal cavity, the hand rest lower end has a toroidal reflective surface (17) to form garden platform shape cavity, above the Light conducting pointer (11) is smooth flat (20), for optics delineation inclined-plane (19), there is reflectorized material to apply reflector layer (18) on it below.

5, illumination panel device according to claim 4 is characterized in that be that the garden heart constitutes the garden arc-shaped cavity every tabula rasa with axle (16), reflecting surface (17), and the inclination angle of (14) is 45.

6, illumination panel device according to claim 1 is characterized in that in the middle of the optical conductor plate 1 window (21) being arranged, and all shadings of printed layers (2) are equipped with digital runner (22) below the window (21).

7, illumination panel device according to claim 1, optical plate (1), shadow shield (12), window (21) is arranged in the middle of the cavity that wiring board (9) forms, all shadings of printed layers (2), there is reflector layer (5) cavity four sides and bottom surface, side cavity lower limb has a LED element at least around the window, digital runner (22) is housed below the window, and the optical conductor plate length of close digital runner end forms the inclined-plane (24) of leaded light cavity greater than wiring board length.