A batch detection device for light guide plate lighting uniformity

Abstract

The present invention discloses a batch detection device for the uniformity of light of a light guide plate, which includes a conveying device, two groups of which are arranged at intervals in the same direction; a side bracket, which is arranged between the conveying devices and has a lifting rod fixed on its upper end, and a distribution rack is installed on the output end of the lifting rod, and a light detection device is installed on the distribution rack; and a lighting device, which is respectively arranged on the side brackets on both sides.

Description

Technical Field

[0001] The present invention relates to the technical field of light guide plate detection, and in particular to a device for batch detection of light uniformity of light guide plates. Background Art

[0002] A light guide plate (LGP) is an optical material primarily made of acrylic. Its internal structure consists of two layers: a reflective surface and a light-emitting surface. Light is diffusely reflected by the dots (light guide points) on the reflective surface before being emitted from the light-emitting surface, transforming a linear light source into a surface light source. Computer-generated light guide points are used to create a uniformly distributed surface light source. Whether the dots are applied to the entire LGP or a portion of the surface, after fabrication, the light uniformity of the dotted areas must be tested to ensure the quality of the LGP.

[0003] Therefore, those skilled in the art provide a device for batch detecting light uniformity of light guide plates to solve the problems raised in the above background technology. Summary of the Invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for batch detecting light uniformity of light guide plates, comprising:

[0005] Conveying devices, two groups are arranged at intervals in the same direction;

[0006] A side bracket is provided between the conveying devices, a lifting rod is fixed to the upper end thereof, a distribution frame is installed on the output end of the lifting rod, and a light detection device is installed on the distribution frame; and

[0007] The lighting devices are respectively arranged on the side brackets on both sides.

[0008] Furthermore, the lighting device includes:

[0009] Slide rails;

[0010] Slide seats are provided in two groups and are slidably connected to the slide rails, and a shaft is rotatably mounted on the slide seats;

[0011] A support belt is sleeved on the outer sides of the lower ends of the two sets of shafts;

[0012] The polishing belt is closely attached to the upper end surface of the support belt and is sleeved on the outside of the two sets of shaft rods. The outer ring surface of the polishing belt is provided with a groove ring. The bottom of the groove ring is sleeved with a steel belt, and the magnetic lamp holder is adsorbed and fixed on the steel belt; and

[0013] The motor is arranged on a group of the slide seats, and the output end of the motor is fixedly connected to the shaft.

[0014] Furthermore, the lighting tapes are closely arranged in multiple layers.

[0015] Furthermore, the arrangement rack includes:

[0016] A square frame panel, with slideways provided on two opposite side panels;

[0017] A first support rod, both ends of which pass through the slideways on both sides and are slidably connected to the slideways; and

[0018] The sleeve rods are sleeved on the supporting rods and are arranged in multiple groups. The lower ends of the sleeve rods are equipped with light detection devices, and the upper ends of the multiple groups of sleeve rods are respectively rotatably connected to the middle part of the diamond-shaped telescopic frame. The diamond-shaped telescopic frame is equipped with a regulating rod for regulating its telescopic extension.

[0019] Furthermore, the said levers 1 are arranged in parallel in multiple groups, and the ends on the same side of the said levers 1 in multiple groups are respectively rotatably connected to the middle part of the rhombus telescopic frame 2, and the rhombus telescopic frame 2 is installed with a regulating rod 2 for regulating its telescopic movement.

[0020] Furthermore, it also includes multiple groups of parallel arranged supporting rods 2, and the middle ends of the multiple groups of supporting rods 2 are respectively rotatably connected to the sleeve rods located on the middle supporting rod 1, and the supporting rod 2 is provided with a sliding cavity, and a sliding sleeve is slidably connected in the sliding cavity and is sleeved on the upper end of the sleeve rod.

[0021] Furthermore, the light detection device includes:

[0022] A top cover is connected and fixed to the lower end of the sleeve rod, and a light sensor is provided on the top of the top cover;

[0023] Telescopic right-angled ribs, mounted on the four edges of the top cover;

[0024] A side panel cover is assembled between two groups of the telescopic right-angled ribs on the same plane, and has a square cavity therein; and

[0025] The light-proof elastic surface is arranged on each side panel cover, the upper edge surface of which is sealedly connected to the bottom of the accommodating square cavity, and the two ends of the lower edge surface of which are respectively connected and fixed to the lower telescopic ends of the telescopic right-angled edges on both sides.

[0026] Furthermore, the telescopic right-angled rib includes a right-angled tube, the lower end of which is slidably connected to a column rod, and a rubber pad is fixed to the outer end of the column rod. The rubber pad and the right-angled tube are connected by a spring sleeved on the column rod, and the rubber pad is used to be connected and fixed to the end of the lower edge surface of the light-proof elastic surface.

[0027] Furthermore, a concave rod is fixed on the rubber pad and is slidably connected to the accommodating square cavity. A baffle is fixed to the side wall of the accommodating square cavity on one side of the concave rod. The concave rod and the baffle are respectively attached to the surface of the light-shielding elastic surface, and a plurality of clamping sliders are slidably connected in the concave rod, and the plurality of clamping sliders are respectively and evenly clamped on the side edge ends of the light-shielding elastic surface.

[0028] Furthermore, it also includes an elastic strip for connecting the two groups of rubber pads on the same plane side, and the upper end strip surface of the elastic strip is sealed with the lower end edge surface of the light-shielding elastic surface.

[0029] Compared with the prior art, the present invention provides a batch detection device for light guide plate light uniformity, which has the following beneficial effects:

[0030] The present invention can cope with light guide plates of different shapes that require lighting through the setting structure of the lighting device, and cooperates with the transmission device to further make batch detection of light guide plates more convenient and efficient.

[0031] 2. In the present invention, the structural setting of the arrangement frame and the light output detection device can partially cover the light output surface of the light guide plate, thereby preventing the light on the light output surface of the light guide plate from irradiating the light guide plate in the nearby area, resulting in light superposition, making it impossible to judge the direct light output intensity detection on the light output surface of the light guide plate, thereby improving the detection accuracy of the light output uniformity of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a device for batch detecting light uniformity of light guide plates according to the present invention;

[0033] Figure 2 This is a schematic diagram of the lighting device structure of the present invention;

[0034] Figure 3 Schematic diagram of the arrangement frame structure of the present invention Figure 1 ;

[0035] Figure 4 Schematic diagram of the arrangement frame structure of the present invention Figure 2 ;

[0036] Figure 5 Schematic diagram of the structure of the light detection device of the present invention;

[0037] Figure 6 It is a partial cross-sectional structural diagram of the light output detection device of the present invention;

[0038] Figure 7 It is a schematic diagram of a partial cross-sectional structure of a concave rod of the present invention;

[0039] In the figure: 1. Side bracket; 2. Conveyor; 3. Lighting device; 4. Arrangement frame; 5. Light detection device; 6. Lifting rod; 31. Slide rail; 32. Slide seat; 33. Shaft rod; 34. Support belt; 35. Lighting belt; 36. Steel belt; 37. Magnetic lamp holder; 38. Motor; 41. Square frame; 42. Slide; 43. One pole; 44. Sleeve rod; 45. One diamond-shaped telescopic frame; 46. One control rod. 47. Diamond-shaped telescopic frame (II); 48. Control rod (II); 49. Pole (II); 410. Sliding sleeve; 51. Top cover; 52. Light sensor; 53. Telescopic right-angled edge strip; 54. Light-shielding elastic surface; 55. Side panel cover; 56. Accommodating square cavity; 57. Elastic strip; 531. Right-angled tube; 532. Column; 533. Spring; 534. Rubber pad; 535. Concave rod; 536. Baffle; 541. Slider clamp. DETAILED DESCRIPTION

[0040] Reference Figure 1-7 The present invention provides a technical solution: a batch detection device for light uniformity of light guide plates, comprising:

[0041] Conveying device 2, two groups are arranged at intervals in the same direction, respectively for the input and output of the light guide plate;

[0042] A side bracket 1 is provided between the conveying devices 2, with a lifting rod 6 fixed to its upper end, a distribution rack 4 being installed on the output end of the lifting rod 6, and a light detection device 5 being installed on the distribution rack 4, and the light detection device 5 is used to detect and compare the light intensity of multiple areas of the light guide plate, so as to determine whether the light output of the light guide plate is evenly distributed; and

[0043] The lighting devices 3 are respectively arranged on the side brackets 1 on both sides to light the light guide plate.

[0044] In this embodiment, the lighting device 3 includes:

[0045] Slide rail 31;

[0046] Slides 32 are provided in two groups and are slidably connected to the slide rails 31 , and a shaft 33 is rotatably mounted on the slides 32 ;

[0047] The support belt 34 is sleeved on the outer sides of the lower ends of the two sets of shafts 33;

[0048] The polishing belt 35 is closely attached to the upper end surface of the support belt 34 and is sleeved on the outside of the two sets of shafts 33. The outer ring surface of the polishing belt 35 is provided with a groove ring, and the bottom of the groove ring is sleeved with a steel belt 36, and the magnetic lamp holder 37 is adsorbed and fixed on the steel belt 36; and

[0049] The motor 38 is provided on one set of the slides 32, and its output end is fixedly connected to the shaft 33;

[0050] The support belt 34 and the polishing belt 35 are of different lengths and specifications, and are connected by sliding between the slide and the slide rail so as to be able to polish light guide plates of different specifications. The magnetic lamp head and the steel strip are magnetically adsorbed, making the arrangement of the magnetic lamp head and the polishing surface of the side edge of the light guide plate more convenient and efficient, and the length of the magnetic lamp head is less than the groove depth of the groove ring.

[0051] As a preferred embodiment, the number of magnetic lamp heads provided on the lighting belt meets the lighting requirements of a light guide plate, and the head-to-tail spacing distance of the magnetic lamp heads along the transmission direction is the same as the transmission spacing distance of the light guide plate, so that the magnetic lamp heads correspond to the lighting edge ends of the light guide plate.

[0052] In this embodiment, the polishing belt 35 is closely arranged in multiple layers. When the polishing edge of the polishing plate is in a non-linear state, for example, referring to Figure 2 As shown, when the structure is in a wave shape, the multi-layered lighting strips 35 can be projected and arranged according to the structural shape of the lighting edge end of the lighting plate.

[0053] In this embodiment, the arrangement frame 4 includes:

[0054] A square frame plate 41, with slideways 42 provided on its two opposite side plates;

[0055] A lever 43, both ends of which pass through the slideways 42 on both sides and are slidably connected to the slideways 42; and

[0056] The sleeve rods 44 are mounted on the support rod 43 and are provided in multiple groups. The light detection device 5 is installed at the lower end of each sleeve rod 44. The upper ends of the multiple sleeve rods 44 are respectively rotatably connected to the middle part of the diamond-shaped telescopic frame 45. The diamond-shaped telescopic frame 45 is equipped with a regulating rod 46 for regulating its extension.

[0057] The first levers 43 are arranged in parallel in multiple groups, and the ends of the same side of the multiple groups of the first levers 43 are rotatably connected to the middle of the second rhombus telescopic frame 47. The second rhombus telescopic frame 47 is equipped with a second regulating rod 48 for regulating its extension.

[0058] The second lever 49 is provided in parallel with a plurality of groups of second levers 49, wherein the middle ends of the plurality of groups of second levers 49 are rotatably connected to the sleeve lever 44 located on the middle lever 1 43. The second lever 49 is provided with a sliding cavity, in which a sliding sleeve 410 is slidably connected and sleeved on the upper end of the sleeve lever 44.

[0059] Among them, by adjusting the diamond telescopic frame 1 to extend and retract by adjusting the first regulating rod, and adjusting the diamond telescopic frame 2 to extend and retract by adjusting the second regulating rod, the light detection devices can be changed to be close to each other and equidistantly arranged, so that the dots on the light guide plate can be locally evenly distributed.

[0060] In this embodiment, the light detection device 5 includes:

[0061] The top cover 51 is connected and fixed to the lower end of the sleeve rod 44, and a light sensor 52 is provided on the top of the top cover for monitoring and comparing the light intensity of the area covered by the light detection device;

[0062] The telescopic right-angled ribs 53 are mounted on the four edges of the top cover 51;

[0063] A side panel cover 55 is mounted between two sets of the telescopic right-angled ribs 53 on the same plane, and has a receiving square cavity 56 formed therein; and

[0064] The light-shielding elastic surface 54 is arranged on each of the side panel covers 55, with its upper edge surface sealedly connected to the bottom of the accommodating square cavity 56, and its lower edge surfaces are respectively connected and fixed to the lower telescopic ends of the telescopic right-angled ribs 53 on both sides;

[0065] That is to say, especially when the light-emitting surface of the light guide plate is a non-planar structure, independent covering by a single light-emitting detection device can enable the light on the light-emitting surface of the light guide plate to directly enter the single light-emitting detection device, thereby preventing the light on the light-emitting surface of the light guide plate from irradiating the light guide plate in a nearby area, resulting in light superposition, making it impossible to judge the direct light intensity detection on the light-emitting surface of the light guide plate.

[0066] In this embodiment, the telescopic right-angled rib 53 includes a right-angled tube 531, the lower end of which is slidably connected to a column 532. A rubber pad 534 is fixed to the outer end of the column 532. The rubber pad 534 is connected to the right-angled tube 531 via a spring 533 sleeved on the column 532. The rubber pad 534 is used to connect and fix to the end of the lower edge of the light-shielding elastic surface 54.

[0067] Specifically, when the light detection device 5 is attached to the light guide plate, the retractable right-angled edges touch the light guide plate and then retract automatically, forming a sealing unit in conjunction with the light-shielding elastic surface, so that the light intensity of the light emitted from the light guide plate can be detected.

[0068] In this embodiment, a concave rod 535 is fixed on the rubber pad 534 and is slidably connected to the accommodating square cavity. A baffle 536 is fixed to the side wall of the accommodating square cavity 56 on one side of the concave rod 535. The concave rod 535 and the baffle 536 are respectively attached to the surface of the light-shielding elastic surface, and a plurality of clamping sliders 541 are slidably connected in the concave rod 535. The plurality of clamping sliders 541 are respectively and evenly clamped on the side edge ends of the light-shielding elastic surface 54 to ensure the light-shielding effect of the light-shielding elastic surface.

[0069] In this embodiment, an elastic strip 57 is further included for connecting the two groups of rubber pads 534 on the same plane side, and the upper end strip surface of the elastic strip 57 is sealed with the lower end edge surface of the light-shielding elastic surface.

[0070] During specific implementation, according to the edge ends of the light guide plate that need to be illuminated, the corresponding lighting belt is assembled, the corresponding magnetic lamp heads are arranged, and the head and tail spacing of the arranged magnetic lamp heads along the transmission direction is measured and used as the spacing distance between adjacent light guide plates. With the cooperation of the transmission device and the support belt, the light guide plate is moved onto the lighting belt, and the arrangement frame is adjusted to move downward by the lifting rod, so that the light output monitoring device is attached to the light output surface of the light guide plate, and the light sensor detects and compares the light output intensity, thereby judging the light output uniformity of the light guide plate.

[0071] The above description is only a preferred specific embodiment of the invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A batch detection device for light guide plate light uniformity, characterized in that: include: The conveying device (2) is provided with two groups spaced apart in the same direction; A side bracket (1) is arranged between the conveying devices (2), a lifting rod (6) is fixed to the upper end thereof, a distribution frame (4) is installed on the output end of the lifting rod (6), and a light detection device (5) is installed on the distribution frame (4); Lighting devices (3) are respectively arranged on the side brackets (1) on both sides; The lighting device (3) comprises: Slide rail (31); Slide seats (32) are provided in two groups and are slidably connected to the slide rail (31), and a shaft (33) is rotatably mounted on the slide seat (32); A support belt (34) is sleeved on the outer sides of the lower ends of the two sets of shafts (33); The polishing belt (35) is closely attached to the upper end surface of the supporting belt (34) and is sleeved on the outside of the two sets of shaft rods (33). The outer ring surface of the polishing belt is provided with a groove ring. The bottom of the groove ring is sleeved with a steel belt (36), and a magnetic lamp holder (37) is fixed on the steel belt (36). A motor (38) is arranged on a set of the slide seats (32), and an output end thereof is connected and fixed to the shaft (33); The arrangement frame (4) comprises: A square frame plate (41) with slideways (42) respectively provided on two opposite side plates thereof; A first lever (43), both ends of which respectively pass through the slideways (42) on both sides and are slidably connected to the slideways (42); and A sleeve rod (44) is sleeved on the first support rod (43) and is provided in multiple groups. A light detection device (5) is installed at the lower end of the sleeve rod (44). The upper ends of the multiple groups of sleeve rods (44) are respectively rotatably connected to the middle part of the first rhombus telescopic frame (45). The first rhombus telescopic frame (45) is provided with a regulating rod (46) for regulating its telescopic movement. The light-emitting detection device (5) comprises: A top cover (51) is fixedly connected to the lower end of the sleeve rod (44), and a light sensor (52) is provided on the top of the top cover; Telescopic right-angled ribs (53) are mounted on the four edges of the top cover (51); A side plate cover (55) is assembled between the two sets of telescopic right-angled ribs (53) on the same plane, and has an accommodating square cavity (56) formed therein; The light-proof elastic surface (54) is arranged on each of the side plate covers (55), and its upper edge surface is sealedly connected to the bottom of the accommodating square cavity (56), and the two ends of its lower edge surface are respectively connected and fixed to the lower telescopic ends of the telescopic right-angled ribs (53) on both sides.

2. The device for batch detecting uniformity of light guide plate lighting according to claim 1, characterized in that: The polishing belts (35) are closely arranged in multiple layers.

3. The device for batch detecting uniformity of light guide plate lighting according to claim 1, characterized in that: The said levers (43) are arranged in parallel in a plurality of groups, and the ends on the same side of the plurality of groups of said levers (43) are respectively rotatably connected to the middle part of the rhombus-shaped telescopic frame (47), and the rhombus-shaped telescopic frame (47) is provided with a regulating rod (48) for regulating its telescopic movement.

4. The device for batch detecting uniformity of light guide plate lighting according to claim 1, characterized in that: It also includes multiple groups of parallel arranged levers (49), wherein the middle ends of the multiple groups of levers (49) are rotatably connected to the sleeve rod (44) located on the middle lever (43), and the levers (49) are provided with a sliding cavity, in which a sliding sleeve (410) is slidably connected and sleeved on the upper end of the sleeve rod (44).

5. The device for batch detecting uniformity of light guide plate lighting according to claim 1, characterized in that: The telescopic right-angled rib (53) includes a right-angled tube (531), the lower end of which is slidably connected to a column (532), a rubber pad (534) is fixed to the outer end of the column (532), and the rubber pad (534) and the right-angled tube (531) are connected by a spring (533) sleeved on the column (532), and the rubber pad (534) is used to be connected and fixed to the end of the lower edge surface of the light-shielding elastic surface (54).

6. The device for batch detecting uniformity of light guide plate lighting according to claim 5, characterized in that: A concave rod (535) slidably connected to the accommodating square cavity is fixed on the rubber pad (534), and a baffle (536) fixed to the side wall of the accommodating square cavity (56) is provided on one side of the concave rod (535), and the concave rod (535) and the baffle (536) are respectively attached to the surface of the light-shielding elastic surface, and a plurality of clamping sliders (541) are slidably connected in the concave rod (535), and the plurality of clamping sliders (541) are respectively and evenly clamped on the side edge ends of the light-shielding elastic surface (54).

7. The device for batch detecting uniformity of light guide plate lighting according to claim 5, characterized in that: It also includes an elastic strip (57) for connecting two groups of rubber pads (534) on the same plane side, and the upper end strip surface of the elastic strip (57) is sealed with the lower end edge surface of the light-shielding elastic surface.

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