Novel crystal clear lamp optical structure

Abstract

The invention discloses a novel crystal clear lamp optical structure which comprises a decoration ring, a front light guide column arranged in the middle of the decoration ring, a light adjusting film arranged on the rear side of the front light guide column, a rear light guide column aligned with the front light guide column and arranged on the rear side of the light adjusting film, and a plurality of LED light sources arranged on the light inlet face of the rear side of the rear light guide column. The rear light guide column is sleeved with the dark grating; when the LED light source is not lightened and the dimming film is electrified, the dimming film is in a surface transparent state under the action of ordered arrangement of internal material molecules; when the LED light source is lightened and the dimming film is powered off, the dimming film has the surface semitransparent light uniformizing characteristic under the action of disordered arrangement of internal material molecules, and light rays emitted by the LED light source can enter the dimming film through the rear light guide column and then enter the dimming film to be subjected to diffuse reflection. The scheme that the dimming film is clamped between the double-layer thick-wall light guide columns is adopted, and the glittering and translucent effect when the lamp is not turned on and the uniform light-emitting effect at a larger angle when the lamp is turned on are achieved through power-on and power-off of the dimming film.

Description

Technical Field

[0001] The invention relates to the technical field of automobile lamps, and in particular to a novel crystal clear lamp optical structure. Background Art

[0002] At present, in the field of car lights, car lamps often need to have crystal clear design requirements. In the existing technology, an optical solution of LED light source plus thick wall parts is usually used, and the matrix is ​​directly illuminated or combined with multi-particle thick wall parts units to achieve ISD (Intelligent Signal Display) intelligent interaction functions and other signal light functions, or it is realized by using high-cost OLED or COB surface light source panels, and different graphics patterns are spliced ​​through the combination of different units to convey different texts or information. In order to achieve a clear graphic illustration, it is necessary to achieve consistency in the appearance of the lamp lighting within a larger angle range; while OLED has a good display effect, the overall cost of the panel is relatively high, the brightness is not high, and it is difficult to achieve functions other than position lights, and OLED technology has high requirements for the car light environment, which is not conducive to product promotion. At the same time, when OLED or COB is not lit, the appearance is white, which cannot meet the customer's demand for a clear appearance.

[0003] In order to achieve a uniform lighting effect over a wider range, it is necessary to design optical patterns or leather grains on the inner and outer surfaces of the inner lampshade or thick-walled optical parts, but this appearance does not meet the crystal clear appearance effect required by customers. In order to achieve a crystal clear effect, existing optical solutions usually cannot design too many patterns on the outer surface. In order to increase the sense of depth and cover the internal structure, the size of the thick-walled parts without patterns will be longer, but at the same time it will bring another problem, that is, the uniform visual range will be narrowed. When the curvature of the shape is large, it is often impossible to achieve a larger angle of lighting appearance consistency and clear graphic representation, which will cause the appearance of the entire lamp to fail to meet customer needs and cause customer complaints. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a new type of crystal clear lamp optical structure, which adopts a solution of sandwiching a dimming film between double-layer thick-walled light guide columns, and realizes a crystal clear effect when the light is not on and a uniform light-emitting effect at a larger angle when the light is on by turning the dimming film on and off.

[0005] In order to solve the above technical problems, the technical solution of the present invention is:

[0006] A novel crystal clear lamp optical structure, comprising a decorative ring, a front light guide column arranged in the middle of the decorative ring, a dimming film arranged at the rear side of the front light guide column, a rear light guide column aligned with the front light guide column and arranged at the rear side of the dimming film, a plurality of LED light sources arranged at the light incident surface at the rear side of the rear light guide column, and a dark grille sleeved on the outer side of the rear light guide column;

[0007] When the LED light source is not lit and the dimming film is powered on, the dimming film is in a surface transparent state due to the orderly arrangement of the internal material molecules, and the front light guide column and the rear light guide column form an integrated thick-walled light guide column;

[0008] When the LED light source is on and the dimming film is powered off, the dimming film presents a translucent and uniform light characteristic on the surface due to the disordered arrangement of the internal material molecules. The light emitted by the LED light source can be incident through the rear light guide column and then enter the dimming film for diffuse reflection, and finally be emitted from the front light emitting surface of the front light guide column.

[0009] Furthermore, the front light emitting surface of the front light guide column is a smooth surface.

[0010] Furthermore, the thickness of the front light guide column does not exceed 5 mm, and the thickness of the rear light guide column is above 30 mm.

[0011] Furthermore, the dimming film is made of flexible material.

[0012] Furthermore, the front light guide column and the decorative ring are integrally formed by two-color injection molding.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects:

[0014] 1. The present invention is different from the existing thick-walled light guide column structure. It is designed to align and separate the front light guide column and the rear light guide column as the light guide structure, and add a dimming film between the two to achieve different functional effects. When the dimming film is energized, the material molecules in the film will be arranged in order under the action of the electric field, so that the front light guide column and the rear light guide column appear to form an integral thick-walled light guide column structure. At the same time, a dark grille is arranged on the outside of the rear light guide column to form a nearly black cavity, which can form a light-blocking effect, so that when there is no optical pattern on the light-emitting surface of the outer surface of the front light guide column, the light fixture can also achieve a transparent and deep effect when it is not lit, so that the observer cannot easily see the internal structure of the unit from the outside of the optical unit, which is more in line with customer needs.

[0015] 2. While ensuring the crystal clear effect, the present invention has a longer size after the front light guide column and the rear light guide column are combined. However, when the light is on, the dimming film is powered off, and the molecules of the material in the film are arranged in a disordered manner, making it difficult for light to penetrate, resulting in a semi-transparent atomization effect. The visible range of the semi-transparent homogenized surface is wider, which is conducive to the combination and splicing of different units to achieve a larger curved surface angle. Different brightness changes can be achieved in conjunction with changes in light sources, thereby meeting customer needs.

[0016] 3. The thickness of the front light guide column of the present invention does not exceed 5mm, and the thickness of the rear light guide column is above 30mm. Since the front light guide column is thinner and the dimming film is closer to the light-emitting surface of the front light guide column, the viewing angle range of the uniform light is wider, ensuring the effect of uniform light emission at a larger angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the dimming film of the present invention when it is powered on;

[0019] Figure 3 This is a schematic diagram of the dimming film of the present invention when it is powered off;

[0020] Among them, 1. LED light source; 2a. Rear light guide column; 2b. Front light guide column; 3. Dimming film; 4. Dark grille; 5. Decorative ring. DETAILED DESCRIPTION

[0021] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0022] like Figure 1 As shown, in this embodiment, a new crystal clear lamp optical structure is provided, which is installed in the lamp housing and mainly consists of a decorative ring 5, a front light guide column 2b, a rear light guide column 2a, a dimming film 3, four LED light sources 1 and a dark grille 4.

[0023] The decorative ring 5 is located at the front side, i.e., the outside of the lamp, and the front light guide column 2b is embedded in the middle of the decorative ring 5. Here, the front light guide column 2b and the decorative ring 5 are integrally formed by two-color injection molding, and the structure is more solid and the sealing performance is better. The dimming film 3 is fixed on the rear side of the front light guide column 2b, i.e., Figure 1 On the right side of the figure, the rear light guide column 2a is fixed to the rear side of the dimming film 3, that is, the dimming film 3 is located between the front light guide column 2b and the rear light guide column 2a, and the front light guide column 2b is coaxially aligned with the rear light guide column 2a. Four LED light sources 1 are arranged on the PCB circuit board and located at the light incident surface on the rear side of the rear light guide column 2a, for lighting the lamp. The dark grille 4 is fixed in the lamp and sleeved on the outside of the rear light guide column 2a.

[0024] Different from the existing thick-walled light guide column structure, this embodiment designs an aligned and separated front light guide column 2b and rear light guide column 2a as a light guide structure, and adds a dimming film 3 between the two to achieve different functional effects.

[0025] refer to Figure 2In the state shown, when the LED light source 1 is not lit, the dimming film 3 is powered on, and the molecules of the material in the dimming film 3 will be arranged in order under the action of the electric field, and then the surface will be transparent, so that the front light guide column 2b and the rear light guide column 2a appear to form an integral thick-walled light guide column structure. At the same time, a dark grille 4 is arranged on the outside of the rear light guide column 2a to form a nearly black cavity, which can form a light-blocking effect, so that the light-emitting surface of the outer surface of the front light guide column 2b has no optical pattern, and the light-emitting surface of the front light guide column 2b in this embodiment can also achieve a transparent and deep effect when the light is not on, that is, the front side of the light-emitting surface of the front light guide column 2b is a smooth surface. The transparent and patternless long thick-walled light guide column will appear deep and clear in the space formed by the dark grille 4 light-blocking structure, and the internal structure is not easy to see, so that the observer cannot easily view the internal structure of the unit from the outside of the optical unit, which is more in line with customer needs.

[0026] refer to Figure 3 In the state shown, when the LED light source 1 is on and the dimming film 3 is powered off, the molecules of the material in the dimming film 3 are arranged in a disordered manner, making it difficult for light to penetrate, and it is in a semi-transparent atomization effect, showing a surface semi-transparent uniform light characteristic, that is, the light emitted by the LED light source 1 can be incident through the rear light guide column 2a and then enter the dimming film 3 for diffuse reflection, and finally be emitted from the front light-emitting surface of the front light guide column 2b. In this way, a uniform luminous effect can be formed, and the visual range of the semi-transparent homogenization surface is wider, which is conducive to the combination and splicing of different units to achieve a larger curved surface angle shape, and different brightness changes can be achieved in conjunction with the change of the light source.

[0027] It is worth mentioning that the thickness of the front light guide 2b is generally no more than 5mm. Figure 1 The left and right distance in the middle is to ensure the visibility of the dimming film from the front angle when the optical unit is arranged at a large inclination angle due to the shape; the thickness of the rear light guide column 2a is generally above 30mm. In order to ensure the spot size and the overall deep and crystal effect of the light-emitting surface of the rear light guide column 2a, it is generally recommended to select according to the size of the light-transmitting area. For example, in this embodiment, the thickness of the front light guide column 2b is 5mm, and the thickness of the rear light guide column 2a is 30mm. Since the front light guide column 2b is thinner and the dimming film 3 is smaller from the light-emitting surface of the front light guide column 2b, the uniform light viewing angle range is wider, ensuring the effect of uniform light emission at a larger angle. Different combinations of optical units can be spliced ​​to achieve different appearances.

[0028] At the same time, in order to facilitate fitting, the dimming film 3 is made of flexible material. The flexible dimming film 3 is closer to the light-emitting surface of the thick-walled front light guide column 2b, ensuring visual uniformity at a larger angle when the entire lamp is lit. The thickness of the rear light guide column 2a is relatively long, which keeps the dimming film 3 away from high-temperature areas such as the light source, and also improves reliability. Different brightness display effects of the overall lamp can be achieved through different energy outputs of the light source.

[0029] It can be seen from the above design that the surface of the thick-walled light guide column of this embodiment has no optical pattern, that is, the light-emitting surface of the front light guide column 2b can be a smooth surface, and when the dimming film 3 is powered on, the overall thick-walled light guide structure is transparent and deep, the light-emitting surface is both crystal clear and transparent, and the internal structure cannot be seen, and the overall effect is consistent. When the dimming film 3 is powered off, the overall uniformity of the light-emitting unit is better, and the wide-angle viewing range is wider, generally not less than 140°, and the combination of different optical units is conducive to achieving different modeling requirements.

[0030] In addition, different lamp brightness levels can be achieved by different energy outputs of the light source and by adjusting the homogenization degree of the dimming film 3. Various dynamic graphic effects can be achieved by combining and splicing different optical units through electronic logic control.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of crystal clear lamp optical structure, characterized by: It comprises a decorative ring (5), a front light guide column (2b) arranged in the middle of the decorative ring (5), a dimming film (3) arranged on the rear side of the front light guide column (2b), a rear light guide column (2a) aligned with the front light guide column (2b) and arranged on the rear side of the dimming film (3), a plurality of LED light sources (1) arranged at the light incident surface on the rear side of the rear light guide column (2a), and a dark grille (4) sleeved on the outer side of the rear light guide column (2a); When the LED light source (1) is not lit and the dimming film (3) is powered on, the dimming film (3) is in a surface transparent state due to the orderly arrangement of the internal material molecules, and the front light guide column (2b) and the rear light guide column (2a) form an integrated thick-walled light guide column; When the LED light source (1) is turned on and the dimming film (3) is powered off, the dimming film (3) exhibits a surface semi-transparent uniform light property due to the disordered arrangement of the internal material molecules, and the light emitted by the LED light source (1) can be incident through the rear light guide column (2a) and then enter the dimming film (3) to undergo diffuse reflection, and finally be emitted from the front light emitting surface of the front light guide column (2b).

2. According to claim 1, a novel crystal clear lamp optical structure is characterized by: The front light emitting surface of the front light guide column (2b) is a smooth surface.

3. The novel crystal clear lamp optical structure according to claim 1, characterized in that: The thickness of the front light guide column (2b) does not exceed 5 mm, and the thickness of the rear light guide column (2a) is above 30 mm.

4. The novel crystal clear lamp optical structure according to claim 1, characterized in that: The dimming film (3) is made of flexible material.

5. The novel crystal clear lamp optical structure according to claim 1, characterized in that: The front light guide column (2b) and the decorative ring (5) are integrally formed by two-color injection molding.

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