Direct type linear lens

Abstract

The utility model discloses a direct linear lens of formula, it includes microstructure, the top of microstructure is connected with the frame through bolt, the top of microstructure is close to the both sides respectively through bolt and is connected with the side plate, two the opposite side of side plate is installed with even distribution's LED lamp respectively, and two the opposite side of side plate is installed with even distribution's first lens respectively, the frame is provided with even distribution's second lens, and the bottom of even distribution's second lens is connected on the top of microstructure, and the front wall and the back wall of even distribution's second lens are installed with lamp pearl respectively. The technical scheme is through the mutual cooperation between first lens, lamp pearl, second lens and frame etc. parts, makes it can little LED lamp just can achieve the linear uniformity of light emitting surface, can accurate control the exit angle of light, ensures that most light is perpendicular or close to the vertical and is shot to liquid crystal panel, reduces the light loss, improves the light efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, and in particular to a direct-lit linear lens. Background Technology

[0002] A direct-lit linear lens is a key optical component in the backlight module of a display (mainly an LCD). However, existing direct-lit linear lenses require a large number of LEDs to achieve linear uniformity of the light-emitting surface, which prevents effective and uniform light transmission, reducing their light transmission efficiency. Furthermore, they cannot precisely control the light emission angle, failing to ensure that most light rays are directed perpendicularly or nearly perpendicularly to the LCD panel, increasing light loss and reducing luminous efficiency. Therefore, we propose a direct-lit linear lens. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a direct-lit linear lens that can achieve linear and uniform light emission with a small number of LEDs, can precisely control the light emission angle, and ensure that most of the light is directed vertically or nearly vertically onto the LCD panel, thereby reducing light loss and improving light efficiency.

[0004] To achieve the above objectives, a direct-lit linear lens is provided, comprising: a microstructure, a frame connected to the top of the microstructure by bolts, side plates connected to the top of the microstructure near the front and rear sides by bolts, a plurality of evenly distributed LED lights mounted on the opposite side of the two side plates, and a plurality of evenly distributed first lenses mounted on the opposite side of the two side plates.

[0005] According to the direct-lit linear lens, a plurality of uniformly distributed second lenses are provided in the frame, and the bottom of the plurality of second lenses is connected to the top of the microstructure.

[0006] According to the direct-down linear lens, LED beads are respectively installed on the front and rear walls of several second lenses.

[0007] According to the direct-down linear lens, LED beads are respectively installed on the front and rear walls of several second lenses.

[0008] According to the direct-down linear lens, the left and right sides of the microstructure are respectively connected to a mating plate, and a second mounting hole is opened on the mating plate, and a mating tube is inserted into the second mounting hole.

[0009] The above solution has at least one of the following beneficial effects: Through the cooperation between components such as the first lens, the LED bead, the second lens, and the frame, this technical solution enables the light-emitting surface to be linearly uniform with a small number of LEDs, and can precisely control the light emission angle to ensure that most of the light is directed vertically or nearly vertically onto the LCD panel, thereby reducing light loss and improving luminous efficiency.

[0010] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0012] Figure 1 This is a front perspective view of the present invention;

[0013] Figure 2 for Figure 1 Partial 3D view of components such as the central LED and the second lens;

[0014] Figure 3 for Figure 1 Partial 3D view of components such as the middle side panel and LED lights;

[0015] Figure 4 for Figure 1 Partial 3D view of the connecting plate and connecting pipe and other components;

[0016] Figure 5 for Figure 1 A side-view stereoscopic view;

[0017] Figure 6 This is a simulated light transmission result of this utility model.

[0018] Legend:

[0019] 1. Microstructure; 2. LED light; 3. Lamp bead; 4. Mounting ear; 5. First mounting hole; 6. Connecting pipe; 7. Connecting plate; 8. Side plate; 9. First lens; 10. Second lens; 11. Frame; 12. Second mounting hole. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figures 1 to 6The present invention relates to a direct-lit linear lens, which includes a microstructure 1. A frame 11 is bolted to the top of the microstructure 1. Side plates 8 are bolted to the top of the microstructure 1 near the front and rear sides. Several evenly distributed LED lights 2 are installed on the opposite side of the two side plates 8, and several evenly distributed first lenses 9 are installed on the opposite side of the two side plates 8.

[0022] The frame 11 contains several evenly distributed second lenses 10, with the bottoms of these lenses connected to the top of the microstructure 1. LED beads 3 are mounted on the front and rear walls of each second lens 10. Several evenly distributed mounting ears 4 are bolted to the front and rear walls of the microstructure 1, with first mounting holes 5 at their tops. Connecting plates 7 are attached to the left and right sides of the microstructure 1, each with a second mounting hole 12 through which a connecting pipe 6 passes. This structure allows for linear and uniform light emission from a small number of LEDs 2, enabling precise control of the light emission angle and ensuring that most light rays are directed perpendicularly or nearly perpendicularly to the LCD panel, reducing light loss and improving luminous efficiency.

[0023] Working Principle: In this technical solution, the microstructure 1 is first installed in the desired position via the microstructure 1, mounting ear 4, first mounting hole 5, docking plate 7, and docking tube 6. The LEDs 2 and 3 emit point light sources, resulting in relatively concentrated light. The first lens 9 and second lens 10 diffuse the light emitted by each LED 2 point light source horizontally (i.e., perpendicular to the light strip). Through this lateral diffusion, the light from a single LED point is elongated and spread out, covering a wider screen area. Multiple LED points, along with their corresponding linear lenses, form a relatively uniform light band. This allows for linear uniformity of the light emission surface with a small number of LEDs 2, enabling precise control of the light emission angle and ensuring that most of the light is directed vertically or nearly vertically onto the LCD panel, reducing light loss and improving luminous efficiency.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A direct-lit linear lens, characterized in that, include: Microstructure (1), the top of the microstructure (1) is connected to a frame (11) by bolts, the top of the microstructure (1) is connected to side plates (8) by bolts near the front and rear sides, a number of evenly distributed LED lights (2) are installed on the opposite side of the two side plates (8), and a number of evenly distributed first lenses (9) are installed on the opposite side of the two side plates (8).

2. The direct-lit linear lens according to claim 1, characterized in that, The frame (11) is provided with a number of evenly distributed second lenses (10), and the bottom of the number of second lenses (10) is connected to the top of the microstructure (1).

3. The direct-lit linear lens according to claim 2, characterized in that, A number of second lenses (10) have LED beads (3) installed on their front and rear walls respectively.

4. The direct-lit linear lens according to claim 3, characterized in that, The front and rear walls of the microstructure (1) are respectively connected by bolts to a number of evenly distributed mounting ears (4), and the top of the mounting ears (4) is provided with a first mounting hole (5).

5. The direct-lit linear lens according to claim 4, characterized in that, The microstructure (1) is connected to a docking plate (7) on the left and right sides respectively, and a second mounting hole (12) is provided on the docking plate (7), and a docking pipe (6) is inserted into the second mounting hole (12).

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