CN209926239U

CN209926239U - Light guide for realizing area light source by point light source through multi-coupling and total reflection

Info

Publication number: CN209926239U
Application number: CN201920602690.6U
Authority: CN
Inventors: 辛忠华; 陈娜; 吴全明
Original assignee: VISTEON TYC AUTO LAMPS Co Ltd
Current assignee: VISTEON TYC AUTO LAMPS Co Ltd; Varroc TYC Auto Lamps Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-10
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to a car light technical field just discloses a realize light guide of area source through many couplings and total reflection by pointolite, including car lamp box, light guide panel, positioner, dust cover, LED light source and fixture block, the inner wall of car lamp box and positioner's surface connection, positioner's inboard and light guide panel's surface connection, light guide panel is located the left side of LED light source, the lamp stand of LED light source and the interior wall connection of car lamp box, the left surface of car lamp box is provided with the draw-in groove, the inboard of draw-in groove and the surface connection of fixture block, and the left surface of fixture block is connected with the right flank of dust cover. The utility model provides a LED light source cooperation speculum, adopt direct-throw formula or indirect, though can realize the luminous effect of face, its homogeneity is very poor, and its temperature resistant of OLED area source, the reliability in the aspect such as moisture-proof, anti-vibration is not high, and more important point moreover, problem that the cost is very high.

Description

Light guide for realizing area light source by point light source through multi-coupling and total reflection

Technical Field

The utility model relates to a car light technical field specifically is a realize the light guide of area source through many couplings and total reflection by the pointolite.

Background

At present, LEDs are widely used in automobile lamps, for example, LED light sources are matched with reflectors, and direct projection or indirect type is adopted, although the surface light emitting effect can be achieved, the uniformity is poor, some lamps adopt light diffusion materials to achieve a more uniform visual effect, but a larger lamp space and more LED particles are required, and the overall effect is limited by the shape, the whole effect is not ideal, with the development of the technology, OLED surface light sources are well known, the OLED surface light sources can achieve a very uniform surface light emitting effect, each angle looks very uniform, the size can be small, light and thin, and the shape is flexible and variable, but the service life of the OLED surface light sources can only reach 10% of that of the LED light sources, and the reliability in the aspects of temperature resistance, moisture resistance, vibration resistance and the like is not high, and more important point is that the cost is very high, therefore, the prospect of wide application of the OLED area light source on the car light is not clear at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light guide through many couplings and total reflection realization area source by the pointolite reaches and uses current LED granule, adopts lower cost, realizes the purpose of the luminous effect of even face.

In order to achieve the above object, the utility model provides a following technical scheme: the light guide comprises a vehicle lamp box, a light guide panel, a positioning device, a dust cover, an LED light source and a fixture block, wherein the inner wall of the vehicle lamp box is connected with the outer surface of the positioning device, the inner side of the positioning device is connected with the outer surface of the light guide panel, the light guide panel is positioned on the left side of the LED light source, a lamp holder of the LED light source is connected with the inner wall of the vehicle lamp box, a clamping groove is formed in the left side face of the vehicle lamp box, the inner side of the clamping groove is connected with the outer surface of the fixture block, and the left side face of the fixture block is connected with the right side face of the dust cover.

Preferably, the LED light source comprises an LED bulb and a lamp holder, and the bottom of the LED bulb is in threaded connection with the inner wall of the lamp holder.

Preferably, the positioning device comprises a first annular clamping block, a second annular clamping block, a spring, a supporting seat and a sliding block, the right side face of the first annular clamping block is connected with the left side face of the second annular clamping block, the faces, back to the back, of the second annular clamping blocks on the two sides are respectively connected with the faces, opposite to the supporting seats, of the two sides, the two ends of the supporting seat are respectively connected with the faces, opposite to the sliding blocks, of the two sides, and the right side face of the supporting seat is connected with the left side face of the spring.

Preferably, the inner wall of the car lamp box is provided with an annular opening, the right side face of the spring is connected with the right wall of the inner side of the annular opening, and the supporting seat is located on the inner side of the annular opening.

Preferably, the both ends of the inboard of annular mouth all set up the spout, and the inner wall of spout and the outer wall connection of slider.

Preferably, the right side surface of the light guide panel is connected with a light incident surface, the left side surface of the light guide panel is connected with a total reflection surface, and the total reflection surface and the light incident surface are symmetrically arranged.

Preferably, the top of the light guide panel and the bottom surface of the dust cover are both connected with a leather grain surface, and the bottom surface of the light guide panel is connected with an optical microstructure pattern surface.

The utility model provides a realize the light guide of area source through many couplings and total reflection by the pointolite. The method has the following beneficial effects:

(1) the utility model discloses a light that the LED light source launches is after going into the plain noodles on the leaded light panel, has changed the propagation path of light, and the total reflection reaches the optical microstructure decorative pattern on the leaded light panel and takes place the total reflection once more, goes out the leather line face on the plain noodles through the leaded light panel, makes light carry out the diffusion once more, and on the light that jets out from the leaded light panel reached the shield, the leather line face on the dust cover, diffuses light once more, reaches even effect of lighting. The optical microstructure patterns on the light guide panel are distributed in a scattering manner from the center to the edge, and the sizes of the patterns are gradually increased from the center to the edge, so that the purpose of using the existing LED particles and realizing the effect of uniform surface light emission by adopting lower cost is achieved.

(2) The utility model discloses a fixture block can the joint in the draw-in groove, thereby be convenient for car lamp box and dust cover equipment, setting through the supporting seat has the effect that leads to annular clamp splice two, as long as the staff gives annular clamp splice thrust that faces right, the spring just can compress, the slider just can slide right in the spout is inside, thereby the supporting seat drives annular clamp splice two and leaves annular clamp splice one, treat that the leaded light panel is placed in the ring channel of annular clamp splice one setting, the cancellation gives annular clamp splice thrust that faces right, the spring just can resume initial state, annular clamp splice two can carry out the joint with annular clamp splice one, thereby leaded light panel fixed mounting is in the device's inside, be convenient for change the leaded light panel after impaired, thereby ensure that the device can realize very even face illuminating effect.

Drawings

Fig. 1 is a sectional view of the present invention;

fig. 2 is a side sectional view of the present invention;

fig. 3 is a partially enlarged schematic view of the light incident surface of the light guide panel according to the present invention;

FIG. 4 is a schematic view of the dermatoglyph processing area of the present invention;

fig. 5 is a schematic view of the local enlargement of the optical microstructure pattern on the light guide panel of the present invention.

In the figure: the LED light source module comprises a vehicle lamp box 1, a light guide panel 2, a positioning device 3, a dust cover 4, an LED light source 5, a fixture block 6, a fixture groove 7, a total reflection surface 201, a light incoming surface 202, a dermatoglyph surface 203, an optical microstructure pattern surface 204, a circular clamping block I301, a circular clamping block II 302, a circular opening 303, a spring 304, a sliding chute 305, a supporting seat 306 and a sliding block 307.

Detailed Description

As shown in fig. 1-5, the utility model provides a technical solution: the utility model provides a realize the light guide of area source through many couplings and total reflections by pointolite, including car lamp box 1, light guide panel 2, positioner 3, dust cover 4, LED light source 5 and fixture block 6, the inner wall of car lamp box 1 and positioner 3's surface fixed connection, positioner 3's inboard and light guide panel 2's surface joint, light guide panel 2 is located the left side of LED light source 5, the lamp stand of LED light source 5 and car lamp box 1's inner wall fixed connection, draw-in groove 7 has been seted up to car lamp box 1's left surface, draw-in groove 7's inboard and fixture block 6's surface joint, the left surface of fixture block 6 and the right flank fixed connection of dust cover 4.

Further, the LED light source 5 comprises an LED bulb and a lamp holder, and the bottom of the LED bulb is in threaded connection with the inner wall of the lamp holder.

Further, the positioning device 3 comprises a first annular clamping block 301, a second annular clamping block 302, a spring 304, a supporting seat 306 and a sliding block 307, wherein the right side face of the first annular clamping block 301 is clamped with the left side face of the second annular clamping block 302, the faces of the second annular clamping blocks 302 on the two sides, which are opposite to each other, are fixedly connected with the faces of the supporting seat 306 on the two sides, the two ends of the supporting seat 306 are fixedly connected with the faces of the sliding blocks 307 on the two sides, and the right side face of the supporting seat 306 is fixedly connected with the left side face of the spring 304.

Further, the inner wall of the car light box 1 is provided with an annular opening 303, the right side surface of the spring 304 is fixedly connected with the right wall of the inner side of the annular opening 303, and the supporting seat 306 is located on the inner side of the annular opening 303.

Furthermore, the inner two ends of the annular opening 303 are both provided with sliding grooves 305, and the inner walls of the sliding grooves 305 are movably connected with the outer walls of the sliding blocks 307.

Further, the right side surface of the light guide panel 2 is fixedly connected with a light incident surface 202, the left side surface of the light guide panel 2 is fixedly connected with a total reflection surface 201, and the total reflection surface 201 and the light incident surface 202 are symmetrically arranged.

Further, the top of the light guide panel 2 and the bottom of the dust cover 4 are both fixedly connected with a leather grain surface 203, and the bottom of the light guide panel 2 is fixedly connected with an optical microstructure pattern surface 204.

When the LED light source is used, after light emitted by the LED light source 5 passes through the light incoming surface 202 on the light guide panel 2, the propagation path of the light is changed, the total reflection reaches the optical microstructure pattern 204 on the light guide panel 2 and is totally reflected again, the light passes through the dermatoglyph surface 203 on the light outgoing surface of the light guide panel 2, the light is diffused for one time, the light emitted from the light guide panel 2 reaches the dust cover 4 and passes through the dermatoglyph surface 203 on the dust cover 4, and the light is diffused again, so that the uniform lighting effect is achieved. Wherein, the optical microstructure patterns 204 on the light guide panel 2 are distributed in a scattering shape from the center to the edge, the pattern size is gradually increased from the center to the edge, and the pattern can be clamped in the clamping groove 7 through the clamping block 6, therefore, the assembly of the vehicle lamp box 1 and the dust cover 4 is facilitated, the arrangement of the supporting seat 306 has a restraining effect on the second annular clamping block 302, as long as a worker applies a rightward thrust to the second annular clamping block 302, the spring 304 is compressed, the sliding block 307 slides rightward in the sliding groove 305, therefore, the supporting seat 306 drives the second annular clamping block 302 to leave the first annular clamping block 301, after the light guide panel 2 is placed in the annular groove formed in the first annular clamping block 301, the right thrust given to the second annular clamping block 302 is cancelled, the spring 304 can be restored to the initial state, the second annular clamping block 302 can be clamped with the first annular clamping block 301, and the light guide panel 2 is fixedly installed in the device.

To sum up, the utility model discloses a light that LED light source 5 launches is after going into plain noodles 202 on the light guide panel 2, the propagation path of light has been changed, the total reflection reaches the total reflection of taking place once more of optical microstructure decorative pattern 204 on the light guide panel 2, go out the dermatoglyph face 203 on the plain noodles through the light guide panel 2, make light carry out the diffusion once, on the light that jets out from the light guide panel 2 reached dust cover 4, leather dermatoglyph face 203 on the dust cover 4, again with light diffusion, reach the even effect of lighting. Wherein, the optical microstructure pattern 204 on the light guide panel 2 is distributed in a scattering shape from the center to the edge, the pattern size is gradually increased from the center to the edge, thereby achieving the purpose of using the existing LED particles and realizing the effect of uniform surface illumination with lower cost, the utility model discloses a fixture block 6 can be clamped in a clamping groove 7, thereby being convenient for the assembly of the car lamp box 1 and the dust cover 4, the arrangement of the supporting seat 306 has the function of restraining the annular clamping block II 302, as long as the worker gives the right thrust to the annular clamping block II 302, the spring 304 can be compressed, the slider 307 can slide rightwards in the sliding groove 305, thereby the supporting seat 306 drives the annular clamping block II 302 to leave the annular clamping block I301, when the light guide panel 2 is placed in the annular groove arranged by the annular clamping block I301, the right thrust to the annular clamping block II 302 is cancelled, the spring 304 can be restored to the initial state, the second annular clamping block 302 can be clamped with the first annular clamping block 301, so that the light guide panel 2 is fixedly installed in the device, the damaged light guide panel 2 is convenient to replace, and the device can achieve a very uniform surface light emitting effect.

Claims

1. The utility model provides a realize the light guide of area source by pointolite through many couplings and total reflection, includes car lamp box (1), leaded light panel (2), positioner (3), dust cover (4), LED light source (5) and fixture block (6), its characterized in that: the utility model discloses a lamp box, including car lamp box (1), lamp holder (6), the inner wall of car lamp box (1) and the surface connection of positioner (3), the inboard of positioner (3) and the surface connection of light guide panel (2), light guide panel (2) are located the left side of LED light source (5), the lamp stand of LED light source (5) and the inner wall connection of car lamp box (1), the left surface of car lamp box (1) is provided with draw-in groove (7), the inboard of draw-in groove (7) and the surface connection of fixture block (6), the left surface of fixture block (6) is connected with the right flank of dust cover (4).

2. The light guide of claim 1, wherein the point light source is configured to realize a surface light source by multi-coupling and total reflection, and wherein: the LED light source (5) comprises an LED bulb and a lamp holder, and the bottom of the LED bulb is in threaded connection with the inner wall of the lamp holder.

3. The light guide of claim 1, wherein the point light source is configured to realize a surface light source by multi-coupling and total reflection, and wherein: the positioning device (3) comprises a first annular clamping block (301), a second annular clamping block (302), a spring (304), a supporting seat (306) and a sliding block (307), the right side face of the first annular clamping block (301) is connected with the left side face of the second annular clamping block (302), the faces, back to the back, of the second annular clamping blocks (302) on the two sides are respectively connected with the faces, opposite to the supporting seat (306), of the two sides of the supporting seat (306), the two ends of the supporting seat (306) are respectively connected with the faces, opposite to the sliding blocks (307) on the two sides, and the right side face of the supporting seat (306) is connected with the left side face of the spring (304).

4. The light guide of claim 3 for realizing a surface light source by a point light source through multi-coupling and total reflection, wherein: the inner wall of the car lamp box (1) is provided with an annular opening (303), the right side face of the spring (304) is connected with the right wall of the inner side of the annular opening (303), and the supporting seat (306) is located on the inner side of the annular opening (303).

5. The light guide of claim 4, wherein the point light source is configured to realize a surface light source by multi-coupling and total reflection, and wherein: the inside both ends of annular mouth (303) all set up spout (305), the inner wall of spout (305) is connected with the outer wall of slider (307).

6. The light guide of claim 1, wherein the point light source is configured to realize a surface light source by multi-coupling and total reflection, and wherein: the right side surface of the light guide panel (2) is connected with a light incident surface (202), the left side surface of the light guide panel (2) is connected with a total reflection surface (201), and the total reflection surface (201) and the light incident surface (202) are symmetrically arranged.

7. The light guide of claim 1, wherein the point light source is configured to realize a surface light source by multi-coupling and total reflection, and wherein: the top of the light guide panel (2) and the bottom surface of the dust cover (4) are both connected with leather grain surfaces (203), and the bottom surface of the light guide panel (2) is connected with an optical microstructure flower surface (204).