Light guide bar atmosphere lamp

Abstract

This utility model discloses a light guide strip ambient light, relating to the field of ambient lighting technology. The light guide strip ambient light includes a light guide strip body with several spaced-apart reflective teeth on its wall surface. The opposite side of the reflective teeth is the light-emitting surface. The reflective teeth protrude outwards from the wall surface of the light guide strip to reflect light towards the light-emitting surface. The irradiation area of ​​the reflected light is enveloped by a radially expanding conical area. The conical irradiation areas of different reflective teeth overlap and intersect each other to form overlapping and intersecting lighting areas. At least one end of the light guide strip has a light inlet. The reflective teeth on the light guide strip of this utility model have a larger reflection angle and adjacent spacing, which is larger than the reflective tooth spacing used in ordinary light guide strips in the prior art. The lighting areas formed by the reflection of the reflective teeth overlap and intersect each other. Combined with the blocking and light splitting of the light inlet, a specific light and shadow pattern with complex changes can be projected onto the irradiation surface.

Description

Technical Field

[0001] This utility model relates to the field of ambient lighting technology, specifically a light guide strip ambient light. Background Technology

[0002] Light guide strips are widely used in decorative lighting scenarios such as display backlighting and automotive ambient lighting. The light-emitting principle of light guide strips is based on the disruption mechanism of total internal reflection within transparent materials. When light propagates within a transparent material, total internal reflection occurs when the angle of incidence is greater than the critical angle, completely confining the light within the material. By setting various reflective tooth structures on the back of the light guide strip capable of generating total internal reflection, the angle of incidence of the totally internally reflected light can be changed, making it less than the critical angle. This allows the light inside the light guide strip to exit from the specially designed emitting surface, creating various lighting effects with different styles and shapes.

[0003] The reflective teeth of light guide strips in existing technologies usually adopt a dense, small-sized structure, forming a single linear light effect on the light-emitting surface of the light guide strip. This cannot create a unique pattern effect and cannot be clearly distinguished from ordinary lighting. Utility Model Content

[0004] To address the issue of the monotonous light-emitting line shape of light guide strips in existing technologies, a light guide strip ambient light is proposed. This light guide strip is designed with special reflective teeth, which, together with an auxiliary light-emitting bracket, create a special patterned lighting effect on the illumination surface of the light guide strip.

[0005] This utility model discloses a light guide strip ambient light, including a light guide strip body. The wall surface of the light guide strip is provided with a plurality of spaced reflective teeth, and the opposite side wall surface of the reflective teeth is the light-emitting surface. The reflective teeth protrude outward from the wall surface of the light guide strip to reflect light to the light-emitting surface. The illumination area of ​​the reflected light is enveloped in a radially expanding conical area. The conical illumination areas of different reflective teeth have overlapping and interlacing parts to form overlapping and interlacing illumination areas. At least one of the two ends of the light guide strip is provided with a light inlet.

[0006] As a further improvement of this utility model, it also includes a mounting housing, in which the light guide strip is disposed, and a number of spaced light-transmitting openings are provided through the wall surface of the mounting housing. The light-transmitting openings are arranged along the extension direction of the light guide strip, and the light-emitting surface of the light guide strip faces the light-transmitting openings.

[0007] As a further improvement of this utility model, the mounting housing has an extended irradiation surface on the opening side of the light-transmitting port. The irradiation surface and the through-opening direction of the light-transmitting port have an inclined angle. The light reflected by the reflective teeth is projected onto the irradiation surface to form a cone-shaped irradiation area.

[0008] As a further improvement of this utility model, each reflective tooth is arranged vertically and vertically with several light-transmitting openings, and the conical irradiation area of ​​the reflective tooth envelops the opening area of ​​the corresponding light-transmitting opening.

[0009] As a further improvement of this utility model, the light-transmitting openings within the same reflective toothed conical irradiation area are arranged at equal intervals.

[0010] As a further improvement of this utility model, the conical irradiation area of ​​the reflective teeth is further divided into several conical irradiation areas by the corresponding number of light-transmitting holes.

[0011] As a further improvement of this utility model, the side surface of the reflective teeth forms a spatial angle with the light-emitting surface.

[0012] As a further improvement of this utility model, the upper surface of the reflective teeth forms two symmetrical tooth surfaces along the axial extension direction of the light guide strip, and the two tooth surfaces have the same spatial angle with the light-emitting surface.

[0013] As a further improvement of this utility model, light inlets are provided at both ends of the light guide strip, and a light source is provided on the end face of each light inlet.

[0014] The beneficial effects of this utility model are as follows:

[0015] The reflective teeth on the light guide strip of this invention protrude to form a large reflection angle. Furthermore, the spacing between adjacent reflective teeth on the light guide strip of this invention is larger than the spacing between reflective teeth used in ordinary light guide strips in the prior art. The illumination areas formed by the reflection of each reflective tooth overlap and intersect with each other. Combined with the light-passing holes on the mounting housing that correspond to the reflective teeth in a regular pattern, the overlapping light is further blocked and split. This can form a specific light and shadow pattern with complex changes on the illumination surface. With the addition of the dynamic color change of the light source itself, a more colorful and vibrant ambient lighting effect can be achieved, providing better lighting decoration for the illumination area of ​​the light guide strip ambient light. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the light guide strip of this utility model;

[0017] Figure 2 These are three views of the light guide strip of this utility model;

[0018] Figure 3 This is a cross-sectional view of the front structure of the mounting housing of this utility model;

[0019] Figure 4 This is a cross-sectional view of the rear structure of the mounting housing of this utility model;

[0020] Figure 5This is a schematic diagram of the installation structure of the light guide strip of this utility model in the mounting housing (2a and 2b are both components of the mounting housing).

[0021] Figure 6 A schematic diagram showing the overlapping and intersecting irradiation areas of the light reflected by the reflective teeth of the light guide tube of this utility model.

[0022] Figure 7 This is a schematic diagram of the illumination area formed after the light from the reflective teeth of the light guide tube of this utility model is blocked by the light passage.

[0023] Explanation of the labels in the diagram:

[0024] 1. Light guide strip; 11. Light emitting surface; 12. Light inlet; 101. Reflecting teeth; 1011. Tooth surface; 2. Mounting housing; 201. Light transmission port; 202. Irradiation surface; A. Angle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments: Please refer to the appendix. Figure 1 -Appendix Figure 7 ,

[0026] A light guide strip ambient light includes a light guide strip 1 body, which is made of transparent material and is a uniformly light-transmitting body. The light guide strip 1 is a horizontally arranged column, and both ends of the column have flat surfaces, forming two light inlets 12 for guiding light into the interior of the light guide strip 1.

[0027] A horizontal platform extending along the axial direction of the column is formed on the upper side of the light guide strip 1. Reflective teeth 101 are evenly spaced on this platform, protruding upwards. These protrusions make it easier to create bright and dark edges when reflecting light, thus obtaining a corresponding light pattern. The length direction of the reflective teeth 101 is parallel to the axial direction of the light guide strip 1. The ends of the reflective teeth 101 extend obliquely towards the upper side of the light guide strip 1, forming oblique tooth surfaces 1011. The tooth surfaces 1011 of adjacent reflective teeth 101 are independent and separate, with their ends not connected. Figure 2 As shown, the tooth surface 1011 forms an angle A with the extension direction of the light guide strip 1 axis.

[0028] When light is irradiated into the light guide strip 1 through the light inlets 12 on both sides, the light can undergo total internal reflection in the portion of the light guide strip 1 without reflective teeth 101, propagating along the extension direction of the light guide strip 1. When the light shines on the tooth surface 1011 of the reflective teeth 101, the incident angle of the reflected light will not be greater than the critical angle. At this time, the reflected light cannot continue to undergo total internal reflection within the light guide strip 1, and thus escapes from the light guide strip 1, causing the surface of the light guide strip 1 to emit light. Figure 2As shown, the area indicated by the rectangular dashed box is located on the opposite side of the reflective teeth 101. The reflected and escaped light can make the wall surface of this part of the light guide strip 1 emit light, forming the light-emitting surface 11.

[0029] The reflective tooth 101 is an isosceles triangular convex tooth, with two symmetrical tooth surfaces 1011 formed on its upper surface, such as... Figure 6 As shown, light rays are simultaneously introduced into the light guide strip 1 from the light inlets 12 at both ends. As the light propagates inside the light guide strip 1, it is reflected by the tooth surfaces 1011 of the upper reflective teeth 101 and exits from the lower light-emitting surface 11, forming a radially expanding conical illumination area. The boundary contour of the conical illumination area formed by each reflective tooth 101 is... Figure 6 The cone-shaped outline shown in the upper center (the outline shown is only a part of the upper part of the cone-shaped lighting area and is not a limitation on the length, width, and height of the lighting area) indicates that adjacent cone-shaped lighting areas have overlapping and intersecting parts. Light rays will overlap and intersect at the overlapping parts, forming lighting areas with different brightness from the surrounding areas. Figure 6 Projecting light onto the plane shown above using the dashed lines can produce a light spot pattern that approximates the shape of the dashed lines shown in the illustration.

[0030] It should be noted that the number and spacing of the reflective teeth 101 on the light guide strip 1 can be adjusted according to actual needs. The closer the spacing of the reflective teeth 101, the denser the pattern formed; the farther the spacing of the reflective teeth 101, the sparser the pattern formed. Furthermore, the included angle A of the reflective teeth 101 can also be adjusted according to actual needs. The larger the included angle A, the smaller the cone angle range of the cone-shaped illumination area formed by light reflection; the smaller the included angle A, the larger the cone angle range of the cone-shaped illumination area formed by light reflection.

[0031] Furthermore, the ambient light with a light guide strip according to this utility model also includes a mounting housing 2.

[0032] like Figure 5 As shown, the mounting housing 2 includes mounting housing 2a and mounting housing 2b, which are fastened together by a snap-fit ​​structure along the sidewall edge. The light guide strip 1 is movably embedded in the mounting housing 2b. A horizontally extending snap is formed on the upper side of the mounting housing 2b to snap and fix the light guide strip 1. The lower horizontal surface of the snap is in contact with the horizontal platform surface on the light guide strip 1, and the reflective teeth 101 face vertically upward.

[0033] like Figure 3As shown, the side wall of the mounting housing 2b is inclined and recessed on one side of the light guide strip 1, and the surface of the side wall forms an illumination surface 202 (i.e., the wall area selected by the thick outline in the figure). When the light emitting surface 11 of the light guide strip 1 illuminates the illumination surface 202 through the light emitting port 201, the illuminated light can form a pattern with light and dark distinctions on the illumination surface. At the edge of the wall where the illumination surface 202 is located, a horizontal wall surface parallel to the horizontal platform surface of the light guide strip 1 is formed. Figure 5 As shown, the horizontal wall surface is spaced apart from the light-emitting surface 11 of the light guide strip 1.

[0034] Furthermore, such as Figure 3 As shown, a through-hole 201 is provided on the horizontal wall surface ( Figure 3 (The structure indicated by the dashed box in the middle) The light-transmitting port 201 is vertically aligned with the light-emitting surface 11.

[0035] Specifically, such as Figure 7 As shown, the reflective illumination area of ​​each reflective tooth 101 is as follows: Figure 7 As shown in the lower center, the cone-shaped area is enclosed by the dotted lines emanating from the reflective teeth 101 and extending to both sides. The reflective illumination area of ​​each reflective tooth 101 encloses the two vertically corresponding light-transmitting ports 201. The light projected from each reflective tooth 101 is separated by the two light-transmitting ports 201, further dividing to form two cone-shaped illumination areas.

[0036] like Figure 7 The radially expanding cone-shaped illumination area shown above (the cone-shaped outline shown is only a part of the illumination area and is not a limitation on the length, width and height of the illumination area) has overlapping and intersecting parts between the cone-shaped illumination areas. The light will overlap and superimpose at the overlapping parts to form an illumination area with a different brightness from the surrounding area. When light is projected onto the inclined illumination surface 202, a light spot pattern with a shape similar to the dotted outline shown in the figure can be obtained.

[0037] It should be noted that when the light through port 201 separates and superimposes the light in the reflective illumination area to form a pattern, the light has already been reflected by the reflective teeth 101, resulting in corresponding changes in brightness. The light through port 201 further blocks and separates the light on this basis to form a more complex pattern.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the invention. All variations, modifications and substitutions within the spirit and principle of the present invention are within the protection scope of the present utility model.

Claims

1. A light guide strip atmosphere light, characterized by: The light guide (1) includes a light guide strip (1) body. The wall surface of the light guide strip (1) is provided with a number of spaced reflective teeth (101). The opposite side wall surface of the reflective teeth (101) is the light-emitting surface (11). The reflective teeth (101) protrude outward from the wall surface of the light guide strip (1) to reflect light to the light-emitting surface (11). The irradiation area of ​​the reflected light is enveloped in the radially expanded conical area. The conical irradiation areas of different reflective teeth (101) have overlapping and intersecting parts to form overlapping and intersecting illumination areas. At least one of the two ends of the light guide strip (1) is provided with a light inlet (12).

2. A light guide strip atmosphere lamp according to claim 1, characterized in that: It also includes a mounting housing (2), a light guide strip (1) is set inside the mounting housing (2), and a number of spaced light ports (201) are opened through the wall of the mounting housing (2). The light ports (201) are arranged along the extension direction of the light guide strip (1), and the light-emitting surface (11) of the light guide strip (1) faces the light port (201).

3. A light guide strip atmosphere lamp according to claim 2, characterized in that: The mounting housing (2) has an extended irradiation surface (202) on the opening side of the light-transmitting port (201). The irradiation surface (202) and the light-transmitting port (201) have an inclined angle in the through-opening direction. The light reflected by the reflective teeth (101) is projected onto the irradiation surface (202) to form a cone-shaped irradiation area.

4. The light guide strip atmosphere lamp according to claim 2, characterized in that: Each reflective tooth (101) is arranged vertically in correspondence with several light-transmitting openings (201), and the conical illumination area of ​​the reflective tooth (101) encloses the opening area of ​​the corresponding light-transmitting opening (201).

5. A light guide strip atmosphere lamp according to claim 4, characterized in that: The light-transmitting openings (201) within the same conical irradiation area of ​​the reflective tooth (101) are arranged at equal intervals.

6. A light guide strip atmosphere lamp according to claim 4, characterized in that: The conical irradiation area of ​​the reflective teeth (101) is further divided into several conical irradiation areas by the corresponding light-transmitting holes (201).

7. The light guide strip atmosphere lamp according to claim 1, characterized in that: The side surface of the reflective tooth (101) forms a spatial angle (A) with the light-emitting surface (11).

8. A light guide strip atmosphere lamp according to claim 7, characterized in that: The upper surface of the reflective tooth (101) and the axial extension direction of the light guide strip (1) form two symmetrical tooth surfaces (1011), and the two tooth surfaces (1011) and the light-emitting surface (11) have the same spatial angle A.

9. The light guide strip atmosphere lamp according to claim 1, characterized in that: The light guide strip (1) has light inlets (12) at both ends, and each light inlet (12) has a light source on its end face.

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