Search

CN-122016732-A - Real-time detection equipment for light transmittance of microcrystalline powder diffusion sheet

CN122016732ACN 122016732 ACN122016732 ACN 122016732ACN-122016732-A

Abstract

The invention relates to the technical field of light transmittance detection, in particular to real-time detection equipment for light transmittance of a microcrystalline powder diffusion sheet. Including base, light source module and be located the loading board on the base, have the light trap on the loading board, be provided with the sensitization module in the base that corresponds with the light trap, all be provided with supporting mechanism in the both sides of loading board, supporting mechanism includes backup pad, push pedal and locking portion. The diffusion sheet is pushed horizontally by means of the pushing plate, pushing force is applied to the supporting plate by the pushing plate, the supporting plate is driven to move upwards to raise the height of the diffusion sheet, the diffusion sheet is pushed continuously by the pushing plate, one end of the diffusion sheet is tilted, the other end of the diffusion sheet is sunken, the diffusion sheet is driven to correspond to the light holes through the rotating angle, the incidence angle between the light source projected from the upper side and the cambered surface is reduced, accordingly, the refraction or reflection interference of the light source is reduced, and the accuracy of detection results is improved.

Inventors

  • ZHU TIAN
  • WU XUANQING

Assignees

  • 苏州东福电子科技股份有限公司

Dates

Publication Date
20260512
Application Date
20251218

Claims (10)

  1. 1. The utility model provides a microcrystalline powder diffusion piece luminousness real-time detection equipment, includes base (100), light source module (101) and is located loading board (102) on base (100), has the light trap on loading board (102), is provided with photosensitive module in base (100) that corresponds with the light trap, its characterized in that: the two sides of the bearing plate (102) are provided with supporting mechanisms (110), each supporting mechanism (110) comprises a supporting plate (111), a pushing plate (112) and a locking part, one end of each supporting plate (111) is slidably connected with the base (100), the other end of each supporting plate is rotatably connected with each locking part, and the locking parts are used for fixing edges of two symmetrical ends of the diffusion sheet, so that the diffusion sheet and the locking parts are connected into a whole; In the detection process, the bottom of the supporting plate (111) is rotationally connected with one end of the pushing plate (112), the other end of the pushing plate (112) is abutted with the pushing mechanism (120), the pushing mechanism (120) pushes the diffusion sheet to one side through translation, so that the flat surface of the diffusion sheet passes through the light holes, when the cambered surface of the diffusion sheet moves to the light holes, the pushing mechanism (120) drives the pushing plate (112) to push the supporting plate (111) upwards, and then the pushing mechanism (120) is combined to limit one end of the diffusion sheet, so that one end of the diffusion sheet is lifted by forcing the diffusion sheet and the locking part, and the other end of the diffusion sheet sinks to enable the cambered surface of the diffusion sheet to be close to the light holes.
  2. 2. The device for detecting the light transmittance of the microcrystalline powder diffusion sheet in real time according to claim 1, wherein one end of the supporting plate (111) is slidably connected with an auxiliary vertical plate (113), one end of the supporting plate (111) is rotatably connected with a rotating plate (130), the bottom section of the auxiliary vertical plate (113) is T-shaped and slidably connected with a sliding rail (114), a sliding groove matched with the bottom of the auxiliary vertical plate (113) is formed in the sliding rail (114), the sliding rail (114) is fixed with the base (100), and the locking part is arranged on the rotating plate (130).
  3. 3. The device for detecting the light transmittance of the microcrystalline powder diffusion sheet in real time according to claim 2, wherein the locking part comprises an inner roller (140), an outer roller (141) and a screw rod (142) in threaded connection with the rotating plate (130), an adapter plate (143) is rotatably connected to the distal end of the screw rod (142), the bottom of the adapter plate (143) is rotatably connected with the inner roller (140), the inner roller (140) is symmetrically arranged, the outer roller (141) is rotatably connected with the rotating plate (130), and the outer roller (141) is positioned at an equal dividing point of the diffusion sheet to realize three-point fixation of the diffusion sheet by matching with the inner rollers (140) on two sides.
  4. 4. The apparatus for detecting light transmittance of a fine-grained powder diffusion sheet according to claim 3, wherein a motor (131) is fixedly arranged on a rotating plate (130) at the opposite side of the outer roller (141), the motor (131) drives the outer roller (141) to rotate through a belt, so that the diffusion sheet rotates anticlockwise, and a sweeping area is formed on the diffusion sheet corresponding to the light holes.
  5. 5. The device for detecting the light transmittance of the micro powder diffusion sheet in real time according to claim 2, wherein the pushing mechanism (120) comprises a translation plate (121) slidably arranged on the surface of the base (100), two ends of the translation plate (121) are located on the inner side of the sliding rail (114), two ends of the translation plate (121) are fixedly connected with telescopic ends of an air cylinder (124) respectively, and the air cylinder (124) is fixed on the base (100).
  6. 6. The device for detecting light transmittance of a micro powder diffusion sheet in real time according to claim 5, wherein the pushing mechanism (120) further comprises a pushing plate (122) fixed in the middle of the translation plate (121), the pushing plate (122) is L-shaped, a limiting block (123) is fixedly arranged at the top of the pushing plate, the limiting block (123) is arranged on one of the equal dividing points of the diffusion sheet, the pushing plate (122) is used for pushing the diffusion sheet to move in the translation stage, and the limiting block (123) is used for limiting the tilting of the diffusion sheet.
  7. 7. The apparatus for real-time detection of light transmittance of a fine powder diffusion sheet according to claim 6, wherein a vertical distance between the top plate (122) and the bottom of the carrier plate (102) is larger than a thick end of the carrier plate (102), and the vertical distance is used for receiving the carrier plate (102).
  8. 8. The apparatus for detecting light transmittance of a fine crystal powder diffusion sheet according to claim 1, wherein the pushing plate (112) is inclined, a turning end is provided at a rotational connection portion with the supporting plate (111), and a sinking end is provided at the other end.
  9. 9. The real-time detection device for light transmittance of a microcrystalline powder diffusion sheet according to claim 2, wherein the auxiliary vertical plate (113) corresponding to the rotation connection position of the pushing plate (112) and the supporting plate (111) is provided with a limit groove (116), and the limit groove (116) is used for guiding the pushing plate (112) to move upwards so as to enable the supporting plate (111) to move upwards in a vertical direction.
  10. 10. The device for detecting the light transmittance of the microcrystalline powder diffusion sheet in real time according to claim 5, wherein a column body (115) is fixedly arranged on the pushing plate (112) at the sinking end, partition plates (125) are symmetrically attached to the outer sides of two sides of the column body (115), the partition plates (125) are fixedly connected with the translation plate (121), the partition plates (125) far away from the auxiliary vertical plate (113) are used for applying thrust to the column body (115), and the partition plates (125) close to the auxiliary vertical plate (113) are used for limiting the displacement of the column body (115).

Description

Real-time detection equipment for light transmittance of microcrystalline powder diffusion sheet Technical Field The invention relates to the technical field of light transmittance detection, in particular to real-time detection equipment for light transmittance of a microcrystalline powder diffusion sheet. Background The diffusion sheet has the core function of adjusting the light transmittance and the scattering effect. The light transmittance can be quantified by testing the light transmittance, for example, in a display panel, the light transmittance is required to be more than or equal to 85 percent to maintain the brightness of a screen, and in the illumination field, the thickness of the microcrystalline powder coating is required to be adjusted according to the scene requirement (such as soft light illumination requiring 70-85 percent of light transmittance). The aim is to avoid glare caused by too high light transmittance, or to avoid too low light transmittance affecting display sharpness/illumination efficiency. And in intelligent house field, the fine crystal powder diffusion piece can integrate in special-shaped lamps and lanterns such as circular, oval, realizes the accurate control of light through the camber matching. In the prior art, when the light transmittance of the diffusion sheet is detected, the diffusion sheet is firstly flatly placed on a sample stage to ensure no scratch, bubble or foreign matter shielding, the position is adjusted to enable a test area to cover a target coating, then the type of a light source (such as CIE-D65 for simulating sunlight) is selected according to a standard, and a test mode (real-time monitoring or single measurement) is set. Therefore, for the flat surface of the diffusion sheet, the diffusion sheet can pass through the light holes in a manner of translating the diffusion sheet to realize light transmission detection, but for some illumination lamps, the outer edge of the adopted diffusion sheet has a certain bending radian, when light rays are emitted from the top and are irradiated onto the diffusion sheet through the light holes, the light rays are refracted or reflected by the cambered surface, so that the light rays cannot propagate according to an expected path, and the accuracy of the light transmission detection of the diffusion sheet is affected. Disclosure of Invention The invention provides real-time detection equipment for light transmittance of a microcrystalline powder diffusion sheet, which is characterized in that the diffusion sheet is ejected out through a supporting plate and pushed by a pushing plate, so that the diffusion sheet is inclined, and the problems in the background technology are solved, namely, a cambered surface can refract or reflect light rays, so that the light rays cannot propagate according to an expected path, and the accuracy of light transmittance detection of the diffusion sheet is affected. In order to achieve the above purpose, the real-time detection device for light transmittance of the micro powder diffusion sheet comprises a base, a light source module and a bearing plate positioned on the base, wherein the bearing plate is provided with a light hole, a photosensitive module is arranged in the base corresponding to the light hole, and support mechanisms are arranged on two sides of the bearing plate, each support mechanism comprises a support plate, a push-against plate and a locking part, one end of the support plate is in sliding connection with the base, the other end of the support plate is in rotary connection with the locking part, and the locking parts are used for fixing edges of two symmetrical ends of the diffusion sheet, so that the diffusion sheet and the locking parts are connected into a whole; In the detection process, the backup pad bottom rotates and connects push plate one end, push plate other end butt has pushing mechanism, pushing mechanism pushes away the diffusion piece to one side through the translation, makes diffusion piece level and smooth face pass through from the light trap, when diffusion piece cambered surface removes to light trap department, pushing mechanism drives push plate and upwards ejects the backup pad, combines pushing mechanism to restrict diffusion piece one end again, forces diffusion piece and locking part to form one end perk, the other end submerged state to make diffusion piece cambered surface press close to with the light trap. In the above technical scheme, pushing mechanism is including sliding the translation board that sets up on the base surface, the both ends of translation board are located the slide rail inboard, and the flexible end of fixed connection cylinder is respectively at translation board both ends, the cylinder is fixed on the base. The pushing mechanism further comprises a pushing plate fixed in the middle of the translation plate, the pushing plate is L-shaped, a limiting block is fixedly arranged at the top of the pushing plate,