A car lamp structure that uses polarization properties to achieve a lighting effect

Abstract

The present invention discloses a vehicle lamp structure that utilizes polarization properties to achieve a lighting effect, comprising a light source and a polarization component. The light emitted by the light source is emitted to the outside of the vehicle lamp through the polarization component. The light source comprises at least a first light source, and the polarization component is used as an outer end polarization component. A first polarization component that filters disordered light emitted by the first light source into ordered light is provided between the outer end polarization component and the first light source; the outer end polarization component is provided with at least two light-transmitting areas with different light-transmitting properties.

Description

Technical Field

[0001] The present invention relates to a vehicle lamp structure, and in particular to a vehicle lamp structure that utilizes polarization properties / characteristics to achieve a lighting effect. Background Art

[0002] In the current design process of automotive lighting products, in order to separate lights of different colors and functions, physical shielding structures are generally added to related parts. However, it is difficult to achieve clear lighting boundaries and staggered lighting areas. Figure 1 The optical principle diagram of the existing lamp structure to achieve the lighting effect is shown in FIG. Figure 1 The polarizing component 100 shown in FIG. 1 is a pattern composed of alternating black and white squares. The white portion (translucent area 110) represents a rear turn signal lamp emitting yellow light, and the black portion (translucent area 120) represents a brake light / rear position light emitting red light. According to the prior art, a light source (i.e., Figure 1 b) The light source 300 is arranged behind the light-transmitting areas 110 and 120. In order to avoid the movement of light of different colors, a physical barrier 200 needs to be provided between the light sources 300. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a vehicle lamp structure that utilizes polarization properties to achieve a lighting effect and obtain a clear lighting boundary.

[0004] The technical problem to be solved can be implemented through the following technical solutions.

[0005] A vehicle lamp structure that utilizes polarization properties to achieve a lighting effect, includes a light source and a polarization component, the light emitted by the light source is emitted to the outside of the vehicle lamp through the polarization component, the light source includes at least a first light source, the polarization component is an outer end polarization component, a first polarization component that filters disordered light emitted by the first light source into ordered light is provided between the outer end polarization component and the first light source; the outer end polarization component is provided with at least two light-transmitting areas with different light-transmitting properties.

[0006] As a further improvement of the technical solution, the angle between the polarization direction of the first polarization component and the horizontal direction is α; the angle between the polarization direction of one of the two light-transmitting areas with different light-transmitting properties and the horizontal direction is α.

[0007] As a further improvement of the present technical solution, one of the two light-transmitting regions with different light-transmitting properties is a light-transmitting region without polarization properties.

[0008] As a preferred form of the present invention, the light source includes the first light source and the second light source arranged side by side, and a second polarization component is provided between the outer end polarization component and the second light source to filter the disordered light emitted by the second light source into ordered light; the angle between the polarization direction of the first polarization component and the horizontal direction is α; the angle between the polarization direction of the second polarization component and the horizontal direction is β, α≠β.

[0009] Furthermore, the angle between the polarization direction of one of the two light-transmitting regions with different light-transmitting properties and the horizontal direction is α or β.

[0010] Furthermore, the other of the two light-transmitting regions with different light-transmitting properties is a light-transmitting region without polarization properties.

[0011] As one of the preferred embodiments of the present invention, the angles between the polarization directions and the horizontal direction of the two light-transmitting areas with different light-transmitting properties are α and β respectively, and β=α+90°.

[0012] As a further improvement of the present technical solution, the first light source and the second light source are light sources of the same or different colors.

[0013] Also as a further improvement of the technical solution, the outline of the light-transmitting area is one or a combination of square, circular and ring shapes.

[0014] As another preferred embodiment of the present invention, the light source also includes a third light source arranged side by side with the first light source and the second light source, and a third polarization component for filtering the disordered light emitted by the third light source into ordered light is provided between the outer end polarization component and the third light source, and the angle between the polarization direction of the third polarization component and the horizontal direction is γ, α≠β≠γ.

[0015] Among them, β=α+60° and γ=β+60°.

[0016] As another preferred embodiment of the present invention, the at least two light-transmitting areas with different light-transmitting properties maintain different light-transmitting properties of each light-transmitting area by attaching or not attaching polarizing films on the surfaces of different light-transmitting areas, or attaching different types of polarizing films.

[0017] The headlight structure that uses the above technical solution to achieve the lighting effect by using polarization properties, by first polarizing and filtering the light from one or more light sources into ordered light through the corresponding polarization parts, and then filtering it through the outer polarization parts for the second polarization, because the polarization properties of different light-transmitting areas of the outer polarization parts are different, it is possible to emit or block or partially emit light from different light sources outside the headlight, and further obtain a clear lighting boundary, and the lighting area of ​​the product can be freely controlled. At the same time, the internal structure of the lamp is also simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The optical principle diagram for realizing the lighting effect for the existing car lights; Figure 1 a is a schematic diagram of the structure from the front view. Figure 1 b is Figure 1 a) Sectional view along AA (enlarged view);

[0019] Figure 2 It is a schematic diagram of the structure in which the light source in the vehicle lamp structure of the present invention is filtered into an orderly light source; wherein Figure 2 a is a schematic diagram of the structure from the front view. Figure 2 b is Figure 2 a sectional view along the BB direction;

[0020] Figure 3 A schematic diagram of the optical principle of the vehicle lamp structure provided in the first embodiment of the present invention to achieve the lighting effect; wherein Figure 3 a is a schematic diagram of the structure from the front view. Figure 3 b is Figure 3 a Cross-sectional view along CC direction;

[0021] Figure 4 is a light angle relationship diagram of the present invention;

[0022] Figure 5 This is an optical principle diagram of a vehicle lamp structure realizing a lighting effect according to another embodiment of the present invention; Figure 5 a is a schematic diagram of the structure from the front view. Figure 5 b is Figure 5 a DD-direction cross-sectional view (enlarged view);

[0023] In the figure: 100 - polarization component 110, 120 - light transmission area 200 - physical barrier 300 - light source 400 - light source / light source module 410 - disordered light 500 - polarization component 510 - ordered light 600 - polarization components 610, 620 - light transmission area 710, 720 - light source / light source module 810, 820 - polarization components 811, 821 - ordered light 900 - polarization components 910, 920 - light transmission area DETAILED DESCRIPTION

[0024] The specific implementation modes of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The polarization properties mentioned in the present invention refer to the different polarization effects of the polarization parts themselves. This effect can be achieved by the material of the part itself (such as a polarizer) or by attaching different polarization films to the surface of different areas. For the purpose of expression, the polarization properties here sometimes also include the situation where the surface of the part is not processed and only the optical properties of the part itself are maintained (also referred to as non-polarization properties or natural state in the text).

[0026] like Figures 2 to 4 As shown, the first embodiment of the present invention provides a light source module 400 for realizing a specific function A (such as a brake light, a rear position light, a rear turn light, and a reverse light), and the effective light emission range of the light source module 400 is covered by a polarizing component 500. The polarizing component 500 can be directly a polarizing plate, or can be realized by attaching a polarizing film to a transparent component.

[0027] according to Figure 4 As shown, the angle between the polarization direction of the polarization component 500 and the horizontal direction is alpha. According to the principle of polarization, after the disordered light 410 emitted by the light source module 400 passes through the polarization component 500, only the ordered light 510 whose vibration direction is the same as the polarization direction of the polarization component 500, that is, the angle between the ordered light 510 and the horizontal direction is alpha, can continue to propagate. On the light-transmitting or partially light-transmitting polarization component 600, according to the shape of the product and regulatory requirements, a specific area is designed to have polarization properties, so that the ordered light 500 can pass through the designated light-transmitting area 610 (i.e. Figure 3 The white area in a). These transparent areas 610 can be attached with a material whose angle between the polarization direction and the horizontal direction is alpha, or can be in a natural state (meaning without polarization properties). The transparent areas 620 on the polarization component 600, through which the ordered light 500 cannot pass but which are transparent, should be attached with a material whose angle between the polarization direction and the horizontal direction is beta.

[0028] According to the principle of polarization, the angle between alpha and beta is usually 90°, that is, the vibration directions of their light are perpendicular to each other.

[0029] If there are more than one light source modules 400 for implementing function A, it is necessary to ensure that all light source modules 400 are covered in the same polarization direction (the shapes of the components are not necessarily the same), so as to keep them lit and extinguished at the same time.

[0030] like Figure 5As shown in FIG. 1 , another embodiment of the present invention is to realize two or more functions by different light source modules 710 and 720, and the light source modules with different functions need to be covered by different polarization directions. In the figure, the angle between the polarization direction of the polarization component 810 and the horizontal direction is alpha, and the angle between the polarization direction of the polarization component 820 and the horizontal direction is beta, and the angle between the two polarization directions is usually 90°.

[0031] On the outer polarizing component 900, corresponding polarizing materials should be attached to the light-transmitting areas 910 or 920 with different functions, and the common light-transmitting parts can be kept in a natural state.

[0032] That is, the light from the light source module 710 becomes the ordered light 811 after passing through the polarization component 810, and the light from the light source module 720 becomes the ordered light 821 after passing through the polarization component 820. According to the different polarization properties of the light-transmitting areas 910 and 920 on the polarization component 900, the following situations may occur:

[0033] 1. The angle between the polarization direction of the light-transmitting area 910 and the horizontal direction is alpha; the angle between the polarization direction of the light-transmitting area 920 and the horizontal direction is beta.

[0034] At this time, the ordered light 811 is emitted from the light-transmitting area 910, and the ordered light 811 is blocked by the light-transmitting area 920; the ordered light 821 is emitted from the light-transmitting area 920 and is blocked by the light-transmitting area 910. Figure 5 From the perspective of a, the 8 black blocks emit light from the light source module 710 , and the 8 white blocks emit light from the light source module 720 .

[0035] 2. The angle between the polarization direction of the light-transmitting area 920 and the horizontal direction is alpha; the angle between the polarization direction of the light-transmitting area 910 and the horizontal direction is beta.

[0036] At this time, the ordered light 811 is emitted from the light-transmitting area 920, and the ordered light 821 is emitted from the light-transmitting area 910. Figure 5 From the perspective of a, the 8 black blocks emit light from the light source module 720 , and the 8 white blocks emit light from the light source module 710 .

[0037] 3. The angle between the polarization direction of the light-transmitting area 910 and the horizontal direction is alpha, and the light-transmitting area 920 is an unprocessed light-transmitting area without polarization properties.

[0038] At this time, the ordered light 811 is emitted from the light-transmitting regions 910 and 920, while the ordered light 821 is blocked by the light-transmitting region 910 but can be emitted from the light-transmitting region 920. That is, Figure 5The 8 black blocks in a emit light from the light source module 710 , and the 8 white blocks emit light of mixed colors of the light source modules 710 and 720 .

[0039] 4. The angle between the polarization direction of the light-transmitting area 910 and the horizontal direction is beta, and the light-transmitting area 920 is an unprocessed light-transmitting area without polarization properties.

[0040] At this time, the ordered light 821 is emitted from the light-transmitting regions 910 and 920, while the ordered light 811 is blocked by the light-transmitting region 910 but can be emitted from the light-transmitting region 920. That is, Figure 5 The 8 black blocks in a emit light from the light source module 720 , and the 8 white blocks emit light of mixed colors of the light source modules 710 and 720 .

[0041] The above four situations are four common situations. Of course, each light-emitting area can also extend to other situations according to the polarization properties. For example, the transmittance of the light-transmitting area without polarization properties in a natural state will also have an impact.

[0042] Similarly, there may be multiple similar combinations of the results of Example 1.

[0043] Of course, as required, three light source modules may be provided. In this case, an angle of about 60 degrees is more suitable.

[0044] Furthermore, the light emitted by the multiple light source modules may be the same or different.

[0045] In addition, the polarizing film is preferably attached to the outer surface. Of course, a polarizing plate can also be used.

Claims

1. A vehicle lamp structure that uses polarization properties to achieve a lighting effect, comprising a light source and a polarization component, wherein the light emitted by the light source is emitted to the outside of the vehicle lamp through the polarization component, characterized in that: The light source at least comprises a first light source, the polarization component is an outer end polarization component, a first polarization component for filtering disordered light emitted by the first light source into ordered light is arranged between the outer end polarization component and the first light source; the outer end polarization component is provided with at least two light-transmitting areas with different light-transmitting properties; One of the two light-transmitting regions with different light-transmitting properties is a light-transmitting region without polarization properties; The other of the two light-transmitting regions with different light-transmitting properties is a light-transmitting region without polarization properties; The at least two light-transmitting areas with different light-transmitting properties can maintain different light-transmitting properties of the light-transmitting areas by attaching or not attaching polarizing films on the surfaces of different light-transmitting areas, or attaching different types of polarizing films.

2. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 1, characterized in that: The angle between the polarization direction of the first polarization component and the horizontal direction is α; the angle between the polarization direction of one of the two light-transmitting areas with different light-transmitting properties and the horizontal direction is α.

3. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 1, characterized in that: The light source includes the first light source and the second light source arranged side by side, and a second polarization component is provided between the outer end polarization component and the second light source to filter the disordered light emitted by the second light source into ordered light; the angle between the polarization direction of the first polarization component and the horizontal direction is α; the angle between the polarization direction of the second polarization component and the horizontal direction is β, α≠β.

4. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 3, characterized in that: The angle between the polarization direction of one of the two light-transmitting areas with different light-transmitting properties and the horizontal direction is α or β.

5. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 1 or 3, characterized in that: The included angles between the polarization directions and the horizontal direction of the two light-transmitting areas with different light-transmitting properties are α and β respectively; β=α+90°.

6. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 3, characterized in that: The first light source and the second light source are light sources of the same or different colors.

7. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 1 or 3, characterized in that: The outline of the light-transmitting area is one or a combination of square, circle and ring.

8. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 3, characterized in that: The light source also includes a third light source arranged side by side with the first light source and the second light source. A third polarization component is provided between the outer end polarization component and the third light source to filter the disordered light emitted by the third light source into ordered light. The angle between the polarization direction of the third polarization component and the horizontal direction is γ, α≠β≠γ.

9. The vehicle lamp structure for realizing a lighting effect by utilizing polarization properties according to claim 8, characterized in that: β=α+60°, γ=β+60°.

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