CN114777688B

CN114777688B - Measuring device and measuring method for luminous angle

Info

Publication number: CN114777688B
Application number: CN202210505533.XA
Authority: CN
Inventors: 吕振兴; 齐胜利; 刘亚柱; 余康宁; 王力
Original assignee: Ningbo Anxinmei Semiconductor Co ltd
Current assignee: Ningbo Anxinmei Semiconductor Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2024-04-23
Anticipated expiration: 2042-05-10
Also published as: CN114777688A

Abstract

The invention discloses a measuring device of a luminous angle, which comprises: a support; the test chuck is rotatably arranged on the support; one end of the positioning piece is fixedly connected to the test chuck, and the rotation center of the test chuck is positioned on the axis extension line of the positioning piece; the positioning structure is connected to one end of the positioning piece, the positioning structure accommodates the tested piece and allows the positioning structure to rotate, and the rotating shaft of the positioning structure is perpendicular to the test chuck; and the receiving structure is positioned on the extension line of the center of the positioning structure and positioned on one side of the tested piece, from which the light is emitted. The invention provides a measuring device and a measuring method for a light-emitting angle, which can quickly measure the light-emitting angle with low cost and high precision.

Description

Measuring device and measuring method for luminous angle

Technical Field

The invention belongs to the field of light source testing, and particularly relates to a measuring device and a measuring method for a light emitting angle.

Background

The pursuit of the brightness of the light emitting device is endless, whether in the fields of lighting, backlight, display, or health for sterilization. In certain special application scenarios, there is a special requirement for the light exit angle of the light emitting device. Among factors affecting the brightness and light efficiency of the light emitting device, besides the epitaxy and the processing technology, the light emitting angle of the light emitting device is also an important influencing factor.

The current luminous angle measuring instrument cannot meet the requirements of rapid and low-cost detection due to the factors of high price, convenient operation and the like, and influences the large-scale application of special luminous devices.

Disclosure of Invention

The invention aims to provide a measuring device and a measuring method for a light-emitting angle, which can quickly measure the light-emitting angle of a light-emitting device with low cost and high precision.

In order to solve the technical problems, the invention is realized by the following technical scheme:

The invention provides a measuring device of a luminous angle, which comprises:

A support;

The test chuck is rotatably arranged on the support;

one end of the positioning piece is fixedly connected to the test chuck, and the rotation center of the test chuck is positioned on the axis extension line of the positioning piece;

the positioning structure is connected to one end of the positioning piece, the positioning structure accommodates a tested piece and allows the positioning structure to rotate, and the rotating shaft of the positioning structure is perpendicular to the test chuck; and

The receiving structure is positioned on the extension line of the center of the positioning structure and positioned on one side of the tested piece, from which the light is emitted.

In one embodiment of the present invention, the receiving structure includes:

a light-sensitive sensor; and

And a polarizer positioned between the positioning structure and the light sensing sensor.

In an embodiment of the present invention, a distance between the light sensing sensor and the positioning structure is less than half of a light emitting distance of the measured piece.

In an embodiment of the present invention, the receiving structure is connected to an adjusting structure, and the receiving structure is fixed on the adjusting structure and allows the adjusting structure to drive the receiving structure to move in a direction perpendicular to the positioning member.

In an embodiment of the present invention, a recess is provided on one side of the support, a supporting table is fixed in the recess, and a side wall of the supporting table is attached to a wall surface of the recess.

In an embodiment of the present invention, a rotating shaft is installed on the supporting table, the rotating shaft is connected to one end of the positioning member, and the rotating shaft and the positioning member are coaxial.

In an embodiment of the invention, the recess is symmetrical about an axis of the shaft.

In an embodiment of the present invention, the support is provided with a positioning groove, and a center line of the positioning groove and a center line of the concave part are located in the same plane.

In an embodiment of the present invention, a projection of the positioning element on the support is located in the positioning groove.

The invention also provides a measuring method of the light-emitting angle, which uses the measuring device of the light-emitting angle, and the measuring method of the light-emitting angle comprises the following steps:

installing the measured piece in the positioning structure;

According to the projection position of the positioning piece on the support, the position of the positioning piece is adjusted so that the positioning piece and the test chuck are coaxially arranged;

Moving the receiving structure along the direction perpendicular to the positioning piece, and positioning and fixing the receiving structure according to the distance between the measured piece and the receiving structure when the light intensity of the measured piece reaches the preset intensity;

Rotating the test chuck, acquiring a light intensity value measured by the receiving structure, and recording an angle scale on the test chuck at the moment when the light intensity value is 0 and taking the angle scale as a first angle;

When the light intensity value is larger than 0, recording an angle scale on the test chuck at the moment, and taking the angle scale as a second angle; and

And determining the light emitting angle of the measured piece according to the difference relation between the first angle and the second angle.

As described above, the invention provides a measuring device and a measuring method for a light emitting angle, which can rapidly measure the light emitting angle, the light emitting duty ratio and the light emitting distribution of a light emitting device, has low cost, and can be used for mass measurement of the light emitting device. By the device and the method for measuring the luminous angle, the luminous angle of the measured piece can be measured in a three-dimensional coordinate system, and the testing efficiency is high. The luminous angle measuring device realizes centering of the rotation position of the measured piece in a multiple centering mode of the positioning piece, the test chuck and the positioning structure, has high testing precision and is beneficial to automatic testing.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

Having now more clearly described the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a measuring device according to the present invention.

Fig. 2 is a side view of a pedestal and support table in an embodiment of the invention.

Fig. 3 is a side view of a pedestal and support table in another embodiment of the invention.

Fig. 4 is a schematic top view of the stand.

Fig. 5 is a schematic diagram of a receiving structure.

Fig. 6 is a schematic view of a positioning structure.

Fig. 7 is a schematic diagram of a connection structure of a positioning structure and a positioning member according to an embodiment of the invention.

Fig. 8 is a flowchart of a method for measuring a light emitting angle according to the present invention.

Description of the reference numerals: 1. a measured piece; 11. a package; 111. a lens; 100. a support; 1001. a concave portion; 1002. positioning the cambered surface; 1003. an outer cambered surface; 1004. a positioning groove; 101. a support table; 102. rib plates; 1021. a limit groove; 103. a support plate; 104. a motor; 1041. a rotating shaft; 105. a detection sensor; 200. testing a chuck; 201. a mounting hole; 300. a positioning piece; 301. a clamping plate; 302. a fixing bolt; 3021. a bolt head; 400. a receiving structure; 401. a light-sensitive sensor; 4011. a polarizer; 402. a sleeve; 4021. a boss; 4022. a fixing plate; 4023. a through hole; 403. a bracket; 500. a positioning structure; 501. a clamping ring; 5011. a first clamping ring; 5012. a second clamping ring; 502. ear plates; 5021. a first ear plate; 5022. a second ear plate; 600. an adjustment structure; 601. a vertical rod; 602. a slide block; 700. a display device; 800. a power supply device; 900. a bottom plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

With the worldwide importance of energy, environment and safety, the importance of new materials for new energy is gradually rising. Among them, gallium nitride (GaN) -based light emitting diodes have characteristics of safety, energy saving, environmental protection, long life, and the like, and their application has also been widely paid attention. The light emitting diode is used in the fields of illumination, backlight and display, and the health field for disinfection and sterilization, and the pursuit of brightness is endless. Besides the external extension and the processing technology, the light-emitting angle of the product is also an important influencing factor. The light-emitting measuring device and the light-emitting testing system provided by the invention are applied to light-emitting devices, such as light-emitting diode chips, for performing light-emitting angle testing, so that the light-emitting devices can be applied to various special scenes. The invention can be applied to the light emitting angle test of the light emitting diode to improve the qualification of the factory light emitting angle of the light emitting diode.

The Light-Emitting measurement device provided by the invention can be applied to Light-Emitting angle measurement of Light-Emitting diodes such as Organic Light-Emitting diodes (OLED), inorganic Light-Emitting diodes, active Matrix/Organic LIGHT EMITTING Diode (AMOLED), sub-millimeter Light-Emitting diodes (MINI LIGHT-Emitting Diode, mini LED), micro Light-Emitting diodes (Micro LED) and the like. The light-emitting measuring device provided by the invention can be applied to light-emitting diodes with different light-emitting layer materials, such as deep ultraviolet light-emitting diodes based on aluminum gallium nitride (AlGaN), so as to improve the sterilization effect.

Referring to fig. 1, the present invention provides a light emitting angle measuring device, which includes a support 100, a test chuck 200, a positioning member 300, and a receiving structure 400. Wherein the test chuck 200 is rotatably mounted on the support 100. One end of the positioning member 300 is fixedly connected to the test chuck 200, and the other end is connected to the tested member 1. The test chuck 200 can rotate on the support 100 at any angle and drive the positioning element 300 and the tested element 1 to rotate, so as to change the light emergent position of the tested element 1. Wherein the rotation of the positioning member 300 and the rotation of the test chuck 200 are coaxial rotation, so that the tested member 1 and the test chuck 200 are coaxial rotation, thereby ensuring that the light emitting angle of the tested member 1 can be effectively measured by the test chuck 200. Wherein, one end of the positioning member 300 is fixed on the test chuck 200, and the other end is fixed on the tested member 1. The receiving structure 400 is suspended on the tested piece 1, and in the process that the tested piece 1 rotates along with the test chuck 200, the receiving structure 400 receives the emitted light of the tested piece 1 to measure the luminous intensity of the tested piece 1, so as to determine the luminous angle of the tested piece 1 in cooperation with the rotation of the test chuck 200.

Referring to fig. 1 and 2, in an embodiment of the present invention, a recess 1001 is provided on one side of a stand 100, and a support table 101 is mounted on the recess 1001. One end of the positioning member 300 is rotatably connected to the supporting table 101, and the rotational connection manner is, for example, a rolling bearing connection. One side of the support table 101 is connected with a rib plate 102, and the rib plate 102 is fixed on the support 100 to stabilize the support table 101. In the present embodiment, the rib 102 has a trapezoid shape to assist in improving the bearing stability of the support table 101 and the rotational accuracy of the test chuck 200, and can have a small area for easy installation. The rib plate 102 is provided with a limiting groove 1021, and the test chuck 200 is rotatably connected in the limiting groove 1021. Wherein, the positioning member 300 is perpendicular to the support 100, and the test chuck 200 is parallel to the side wall of the supporting table 101, so as to ensure that the jitter of the test chuck 200 is small when the test chuck 200 rotates, thereby improving the measurement accuracy of the light emitting angle of the measured member 1. The test chuck 200 is slidably connected to the bottom wall of the limiting slot 1021, so as to improve the stability of the test chuck 200 during rotation. In this embodiment, the test chuck 200 may be manually rotated, and under the limitation of the limiting groove 1021 and the positioning member 300, the light emitting range of the tested member 1 may be rapidly adjusted, while the rotation stability of the tested member 1 may be ensured, and the receiving structure 400 may be ensured to stably receive the light emitted from the tested member 1. Wherein the test chuck 200 is provided with an angular scale and the minimum angular scale is less than, for example, 1 °.

Referring to fig. 1 and 3, in another embodiment of the present invention, a support plate 103 is fixedly connected to one side of the support table 101, and the support plate 103 is located on the opposite side of the rib 102. The motor 104 is installed on the support plate 103, the rotor end of the motor 104 is connected with the rotating shaft 1041, and the rotating shaft 1041 penetrates through the support table 101 to be fixedly connected with the test chuck 200. The support plate 103 is perpendicular to the support table 101, so as to ensure that the rotating shaft 1041 can vertically penetrate through the support table 101, thereby ensuring small-jitter rotation of the test chuck 200. The test chuck 200 and the rotating member 300 are driven to rotate by the rotating shaft 1041, and then the tested member 1 is driven to rotate, so as to adjust the light emitting range of the tested member 1. The motor 104 drives the tested piece 1 to rotate, so that the rotation angle change is constant, the receiving structure 400 can receive light, and the detection accuracy is high. In this embodiment, the test chuck 200 is provided with a mounting hole 201, and the rotating shaft 1041 is connected to the rotating member 300 through the mounting hole 201. The spindle 1041 is, for example, welded to the test chuck 200. The shaft 1041 and the positioning member 300 can be rotated coaxially. The rotating shaft 1041 and the positioning member 300 may be connected by a spring coupling, a rigid connection shaft, or the like, so as to ensure that the rotating shaft 1041 and the positioning member 300 can keep coaxial rotation in a compact mechanical structure, and no dislocation occurs, and the work of the test chuck 200 is not affected.

Referring to fig. 1-4, in an embodiment of the invention, the recess 1001 is in a circular arc shape, and the recess 1001 is symmetrical about a center line of the rotating shaft 1041, so as to facilitate coaxial connection between the rotating shaft 1041 and the positioning element 300. Recess 1001 includes a locating cambered surface 1002. One side of the supporting table 101 is attached to the positioning cambered surface 1002, so as to ensure the bearing stability of the supporting table 101 and facilitate the centering of the rotating shaft 1041. As shown in fig. 4, the sidewall of the support 100 includes an outer arc surface 1003 and a positioning arc surface 1002, diameters of the positioning arc surface 1002 and the outer arc surface 1003 are equal, and a center of the positioning arc surface 1002 is located on a radial extension line of the outer arc surface 1003, so as to facilitate centering of the support table 101, the test chuck 200, and the positioning member 300. The projection of the center of the test chuck 200 on the support 100 is located on the diameter line of the support 100, so that the positioning member 300 and the test chuck 200 can coaxially rotate. The other side of the supporting table 101 is a plane and parallel to the test chuck 200, so that when the supporting plate 103 supports the motor 104, the rotating shaft 1041 is perpendicular to the supporting table 101, so as to facilitate the rotation stability of the test chuck 200. Referring to fig. 2-4, in an embodiment of the invention, the width of the support 100 is greater than or equal to the radius of the support 100, as shown in fig. 4, the width of the support 100 is W ₁, and the radius of the support 100 is R, then W ₁ is greater than or equal to R, so as to ensure that the support 100 has a sufficient bearing area, so as to improve the bearing stability of the support 100. Wherein the width of the recess 1001 is larger than the width of the support table 101. As shown in FIG. 4, the width of the recess 1001 is D, and the width of the support 101 is D, D is greater than or equal to D, so as to ensure that the support 100 has a good positioning effect on the support 101.

Referring to fig. 1-4, in an embodiment of the present invention, a positioning groove 1004 is disposed on the support 100, and a center line of the positioning groove 1004 and a center line of the recess 1001 are located in the same plane, so as to ensure that the positioning member 300 can calibrate the radial runout according to the positioning groove 1004. Wherein, the projection of the positioning piece 300 on the support 100 is positioned in the positioning groove 1004, and the diameter of the positioning piece 300 is smaller than or equal to the width of the positioning groove 1004. In the present embodiment, a detection sensor 105 is installed in the positioning groove 1004 to detect whether the positioning member 300 is located at the center of the test chuck 200, i.e., whether the positioning member 300 and the test chuck 200 are rotated coaxially. When the test chuck 200 rotates with the positioning member 300, the position of the positioning member 300 is deflected, the detection sensor 105 cannot capture the position of the positioning member 300 normally, and whether the positioning member 300 is deflected in the radial direction during rotation can be determined. Wherein, a plurality of detection sensors 105 are installed in the positioning groove 1004, and the plurality of detection sensors 105 are arranged linearly, and the plurality of detection sensors 105 are distributed in the positioning groove 1004 at equal intervals. The projection of the positioning element 300 in the positioning groove 1004 covers the detection sensor 105 to detect the deviation of the positioning element 300 at each position, so that the deviation of the positioning element 300 is captured at the first time, and the position adjustment or replacement and maintenance of the positioning element 300 are facilitated.

Referring to fig. 1 and 5, in an embodiment of the invention, the receiving structure 400 includes a light sensor 401, wherein the light sensor 401 is suspended on the tested object 1, and a receiving end of the light sensor 401 faces the tested object 1. Wherein the light sensing sensor 401 may be a light meter, an integrating sphere, etc. A pointer 202 is fixed to the holder 100. When the test chuck 200 starts to rotate, the positioning member 300 drives the tested member 1 to rotate together with the test chuck 200. During the rotation of the object 1, the light emitting range of the object 1 is changed at all times, and the light sensing sensor 401 keeps receiving light. Beginning with the light not received by the light sensor 401, the angle at which the pointer 202 is pointing on the test chuck 200 is recorded and recorded as the first angle. The test chuck 200 is kept rotated until the light is again received by the light sensor 401, and the angle at which the pointer 202 is pointed on the test chuck 200 at this time is recorded, and is recorded as a second angle. In the rotation process, the light emitting range and the light emitting angle of the measured piece 1 can be preliminarily determined by the difference value of the first angle and the second angle.

Referring to fig. 1 and 5, in an embodiment of the present invention, the receiving structure 400 further includes a polarizer 4011, and the polarizer 4011 is installed between the measured object 1 and the photosensitive sensor 401. The polarizer 4011 may be a polarizing plate or a polarizing prism, or may be a polarization rotation system having an automatic prism structure. The polarization angle of the polarizer 4011 is, for example, 45 ° to 135 °. When the output light of the measured object 1 passes through the polarizer 4011, part of the output light is filtered, and only the output light in a specific direction is left to reach the photosensitive sensor 401, so that the data processing capacity of the photosensitive sensor 401 is reduced, and the photosensitive efficiency of the photosensitive sensor 401 is improved.

Referring to fig. 1 and 5, in an embodiment of the present invention, the receiving structure 400 includes a sleeve 402, a boss 4021 is disposed on an inner wall of the sleeve 402, and the photosensor 401 is mounted on the boss 4021. Polarizer 4011 is mounted within sleeve 402, and photosensor 401 is mounted on one side of boss 4021, polarizer 4011 is mounted on the other side of boss 4021. The sleeve 402 has a mounting plate 4022 attached to an end thereof adjacent to the polarizer 4011, and the polarizer 4011 is mounted on the mounting plate 4022. Wherein the sleeve 402 and the fixing plate 4022 may be coupled by screws (not shown). Wherein, the outer parts of the light sensing sensor 401 and the polarizer 4011 are sleeved with a gasket 4012, and the gasket 4012 is connected with the inner wall of the sleeve 402. The gasket 4012 may be an elastic gasket to stabilize the positions of the photosensor 401 and the polarizer 4011 and to protect the photosensor 401 and the polarizer 4011. Wherein, the fixing plate 4022 is provided with a through hole 4023 for allowing the light of the tested piece 1 to pass through.

Referring to fig. 1,4 and 6, in an embodiment of the invention, the tested piece 1 may be a light emitting chip, a light emitting bead and a light emitting module, for example. To accommodate different sizes and types of the tested pieces 1, the positioning structure 500 includes a package 11, and the package 11 is cylindrical, so as to facilitate fixing and clamping of the package 11, and facilitate centering the package 11 according to the cylindrical surface of the package 11. The tested piece 1 is installed in the package 11, and the lens 111 is installed on the package 11, so that the light of the tested piece 1 can pass through the package 11. One end of the positioning member 300 is connected to the test chuck 200, and the other end is connected to the positioning structure 500. The positioning structure 500 comprises a clamping ring 501 and ear plates 502, wherein the ear plates 502 are connected to two sides of the clamping ring 501, and an included angle alpha is formed between the two ear plates 502 connected to the same clamping ring 501, wherein the included angle alpha is 30-330 degrees, for example. The positioning element 300 is fixedly connected to the clamping ring 501 to stably drive the package 11 to rotate. The number of the clips 501 is not limited in the present invention, in this embodiment, the number of the clips 501 is 2, for example, and the 2 clips 501 are sleeved outside the package 11, the ear plates 502 on the 2 clips 501 are attached, and the attached ear plates 502 are fixedly connected by a fixing member such as a bolt. The clamping ring 501 is an elastic member, so that the size of the clamping ring 501 can be adjusted to fit the measured member 1. Wherein the clamping ring 501 has a ring-shaped structure. In this embodiment, the clamping ring 501 is semi-circular. In other embodiments, the cross-section of the grip ring 501 may be, for example, a 1/3 circular ring shape, a 1/4 circular ring shape. A plurality of clips 501 are attached by ear plates 502 to surround the package 11 to clamp the package 11.

Referring to fig. 1 and 2, in another embodiment of the present invention, a positioning structure 500 is disposed at one end of the positioning member 300, and the positioning structure 500 accommodates the tested member 1. The positioning structure 500 may rotate with the positioning member 300 or may rotate in a plane perpendicular to the test chuck 200. Specifically, one end of the positioning member 300 is connected to a plurality of clamping plates 301. In this embodiment, there are 2 clamping plates 301, for example, and two of the clamping plates 301 are symmetrical about the axis of the positioning member 300 to facilitate centering and clamping of the positioning structure 500. In the present embodiment, the number of the clips 501 is, for example, 2, and is a first clip 5011 and a second clip 5012. The first ear plate 5021 is connected to the both sides of first clamping ring 5011, and the second ear plate 5022 is connected to the both sides of second clamping ring 5012. In this embodiment, two first ear plates 5021 are located in the same plane, two second ear plates 5022 are located in the same plane, and the first ear plates 5021 are attached to the second ear plates 5022. The first ear plate 5021 and the second ear plate 5022 are connected between the two clamping plates 301, and corresponding screw holes are formed in the clamping plates 301, the first ear plate 5021 and the second ear plate 5022, and fixing bolts 302 are connected in the screw holes. The fixing bolt 302 passes through the clamping plate 301, the first ear plate 5021 and the second ear plate 5022, and a bolt head 3021 is arranged at one end of the fixing bolt 302 to limit the fixing bolt 302. The first ear plate 5021 and the second ear plate 5022 can rotate between the two clamping plates 301, so that the measured piece 1 is driven to rotate in a plane perpendicular to the test chuck 200, the light emitting angle and range of the measured piece 1 are changed, and the device can be used for fine adjustment of positions of different measured pieces 1 and measuring the light emitting range of the measured piece 1.

Referring to fig. 1, in an embodiment of the invention, the light emitting angle measuring device includes an adjusting structure 600, the adjusting structure 600 is connected to the receiving structure 400, and the adjusting structure 600 can drive the receiving structure 400 to move along a direction parallel to the test chuck 200, so as to adjust a distance between the receiving structure 400 and the positioning structure 500. Specifically, the adjusting structure 600 includes a vertical rod 601 and a slider 602, and the slider 602 is sleeved on the vertical rod 601 and can slide along the vertical rod 601. The receiving structure 400 comprises a bracket 403, and the bracket 403 is connected to a slider 602 to follow the slider 602 sliding along the upright 601. Wherein the upright 601 and the positioning member 300 are perpendicular to each other. The slider 602 moves the photosensor 401, thereby adjusting the distance between the photosensor 401 and the measured piece 1 so that the light intensity of the measured piece 1 is received and detected to the maximum extent. The sliding block 602 is provided with a screw hole, and when the sliding block 602 moves to a corresponding position, the sliding block 602 is screwed by a fixing piece such as a bolt.

Referring to fig. 1, in an embodiment of the invention, the light emitting angle measuring device includes a display device 700 and a power supply device 800, wherein the power supply device 800 is electrically connected to the light sensing sensor 401 and the measured object 1, and the power supply device 800 can provide a current source of, for example, 10 mA-1A. The display device 700 is electrically connected to the photosensitive sensor 401 to display real-time light intensity, so that a tester can flexibly adjust the angle of the test chuck 200 according to the display data, and is convenient for the tester to trace back the measurement result and calibrate the test data.

Referring to fig. 1, in an embodiment of the present invention, the light emitting angle measuring device includes a base plate 900, a support 100 and a vertical rod 601 are fixed on the base plate 900, and the base plate 900 is horizontally placed so that the support 100 and the vertical rod 601 are aligned in a centering position.

Referring to fig. 1 and 8, the invention further provides a method for measuring a light emitting angle, which comprises the following steps.

Step S1, the measured piece 1 is installed in the positioning structure 500.

Step S2, according to the projection position of the positioning piece 300 on the support 100, the position of the positioning piece 300 is adjusted so that the positioning piece 300 and the test chuck 200 coaxially rotate.

Step S3, the receiving structure 400 is moved along the direction perpendicular to the positioning member 300, and when the light intensity of the measured member 1 is tested to be greater than the preset intensity of the measured member 1, the receiving structure 400 is positioned and fixed according to the distance between the measured member 1 and the receiving structure 400.

Step S4, the test chuck 200 is rotated, the light intensity value measured by the receiving structure 400 is obtained, and when the light intensity value is 0, the angle scale on the test chuck 200 is recorded and used as the first angle.

Step S5, when the light intensity value is larger than 0, the angle scale on the test chuck 200 is recorded at the moment and is used as a second angle.

And S6, determining the light emitting angle of the measured piece 1 according to the difference relation between the first angle and the second angle.

Referring to fig. 1, 6 and 8, in step S1, the clamping ring 501 is mated with the package 11, the clamping ring 501 is connected with the clamping plate 301 by the ear plate 502, the ear plate 502 is rotated, the light of the measured piece 1 is received by the light sensor 401 and the light intensity of the measured piece 1 is measured, and when the light intensity value reaches a preset intensity, for example, half of the maximum light intensity value of the measured piece 1, the ear plate 502 is fixedly connected with the clamping plate 301 by the fixing bolt 302, so as to complete the calibration of the position of the measured piece 1. The maximum light intensity value of the measured piece 1 is the factory specification. In step S2, after the positioning structure 500 is assembled, the positioning member 300 is turned, and the position of the positioning member 300 is calibrated by measuring whether the positioning member 300 is stably fixed by the detection sensor 105 in the positioning groove 1004. In step S3, the distance between the receiving structure 400 and the measured object 1 is adjusted by moving the slider 602 on the upright 601, and when the light intensity value reaches the maximum, the position of the slider 602 is fixed, so as to facilitate the clear acquisition of the light intensity value of the measured object 1.

Referring to fig. 1, 6 and 8, in step S4, the test chuck 200 is rotated to change the position of the test piece 1, and the light intensity value of the test piece 1 is obtained by the light sensor 401. When the light intensity value is 0, a reading of the test chuck 200 is recorded and set to a first angle. Continuing to rotate the test chuck 200, when the light intensity value of the measured piece 1, that is, the light intensity value is greater than 0, is again tested, the reading of the test chuck 200 is recorded and set to the second angle. The absolute value of the difference between the first angle and the second angle is calculated, the obtained range is the range of the measured piece 1 which does not emit light, and the absolute value of the difference is subtracted by 360 degrees, so that the light emitting range of the measured piece 1 is obtained. Wherein rotation of the test chuck 200 may be resumed, and when the light intensity value measured by the light sensor 401 is again 0, the reading of the test chuck 200 is recorded and set to a third angle. The absolute value of the difference between the second angle and the third angle is the light emitting range of the measured piece 1. Through obtaining the third angle, the test result can be verified, the processing of test data can be reduced, and the data accuracy is improved. Wherein the light emitting angle of the test piece 1 can be obtained by defining the initial position on the test chuck 200.

The invention provides a measuring device and a measuring method of a light-emitting angle. The luminous angle measuring device can be used for rapidly measuring the luminous angles and luminous duty ratios of different types of measured pieces and obtaining the luminous distribution condition of the measured pieces so as to judge whether the measured pieces are qualified in processing. The three-dimensional full-angle measured piece luminescence angle measurement can be realized by adjusting the test chuck, the positioning structure and the like, and the method has the advantages of low cost, simple process, centering accuracy and contribution to the luminescence angle test of a large number of luminescence pieces.

In the description of the present specification, the descriptions of the terms "present embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A device for measuring an angle of luminescence, comprising:

A concave part is arranged on one side of the support;

The test chuck is rotatably arranged on the support;

The receiving structure is positioned on an extension line of the center of the positioning structure and positioned at one side of the tested piece, from which light is emitted;

Wherein, the support is provided with a positioning groove, and the central line of the positioning groove and the central line of the concave part are positioned in the same plane;

the projection of the positioning piece on the support is positioned in the positioning groove.

2. A light angle measuring device as set forth in claim 1, wherein the receiving structure comprises:

a light-sensitive sensor; and

3. The device for measuring a light emitting angle according to claim 2, wherein a distance between the light sensing sensor and the positioning structure is smaller than half a light emitting distance of the measured object.

4. The device according to claim 1, wherein the receiving structure is connected with an adjusting structure, and the receiving structure is fixed on the adjusting structure and allows the adjusting structure to drive the receiving structure to move in a direction perpendicular to the positioning member.

5. The device for measuring a light emitting angle according to claim 1, wherein a support table is fixed in the concave portion, and a side wall of the support table is bonded to a wall surface of the concave portion.

6. The device for measuring a light emitting angle according to claim 5, wherein a rotating shaft is mounted on the supporting table, the rotating shaft is connected to one end of the positioning member, and the rotating shaft is coaxial with the positioning member.

7. The apparatus according to claim 6, wherein the concave portion is symmetrical about an axis of the rotation shaft.

8. A method for measuring an emission angle, wherein the apparatus for measuring an emission angle according to claim 1 is used, and the method for measuring an emission angle comprises:

installing the measured piece in the positioning structure;