CN116793293A - Lens configuration measurement jig assembly and measurement method thereof - Google Patents
Lens configuration measurement jig assembly and measurement method thereof Download PDFInfo
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- CN116793293A CN116793293A CN202210261259.6A CN202210261259A CN116793293A CN 116793293 A CN116793293 A CN 116793293A CN 202210261259 A CN202210261259 A CN 202210261259A CN 116793293 A CN116793293 A CN 116793293A
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- 238000005259 measurement Methods 0.000 title claims abstract description 210
- 238000000691 measurement method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 35
- 239000000523 sample Substances 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/14—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
Abstract
The embodiment of the invention provides a lens configuration measurement jig assembly and a measurement method thereof, and relates to the technical field of lens measurement. The embodiment of the invention provides a lens configuration measurement jig assembly which is used for being installed on a lens structure. The lens structure comprises a main lens barrel and a plurality of lens frames arranged in the main lens barrel, wherein each lens frame is provided with at least one mounting position for mounting a lens component. The lens configuration measurement jig assembly comprises a plurality of measurement jigs, each measurement jig is of an annular structure, the measurement jigs are used for being correspondingly matched and installed at the installation position, namely, the lens assembly is replaced by the measurement jigs to be installed in the installation position, and due to the fact that the measurement jigs are of the annular structure, independent measurement of eccentric data and inclination data of the installation position can be achieved through measurement of the measurement jigs, meanwhile, detection of the next measurement jig can be achieved through holes of the measurement jigs, and the detection process is more convenient.
Description
Technical Field
The invention relates to the technical field of lens measurement, in particular to a lens configuration measurement jig assembly and a measurement method thereof.
Background
The optical imaging lens is one of important components in the optical equipment, and the parallelism and coaxiality of each lens and the deviation between the lens group air interval equivalent design values can influence the imaging performance of the lens, so that the problem of the yield of the process is caused.
At present, a reflection type eccentric instrument is generally adopted in the lens technology to detect the reflection eccentric values of lenses and groups, but the device is limited to the comprehensive measurement result of the eccentric and the inclination of the lenses, namely, the complementary accumulation result of the eccentric and the inclination exists, so that a certain degree of dead zone exists, the eccentric and the inclination conditions of the lenses under the coordination of the lens production technology and structural members cannot be effectively distinguished, and further, whether the process assembly of the lens group control component is good or not is difficult to be matched in the technology, so that the difficulty of obtaining good quality is increased, the cost of analysis time of unnecessary problems is caused, and the production efficiency of the technology is reduced.
Disclosure of Invention
The invention provides a lens configuration measurement jig assembly, which can measure the assembly data of a main lens barrel and a lens frame in a lens structure.
The invention further provides a lens configuration measurement method, which can measure the assembly data of the main lens barrel and the lens frame in the lens structure.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a lens configuration measurement jig assembly, which is used for being installed on a lens structure, wherein the lens structure comprises a main lens barrel and a plurality of lens frames installed in the main lens barrel, each lens frame is provided with at least one installation position, and the installation positions are used for installing the lens assemblies in a one-to-one correspondence manner;
the lens configuration measurement jig assembly comprises a plurality of annular measurement jigs, and the measurement jigs are used for being correspondingly and adaptively installed at the installation positions.
Optionally, one of the plurality of measuring jigs having the smallest inner diameter is a reference jig, and the inner diameter of the plurality of measuring jigs increases progressively along the direction from the reference jig to the end of the lens structure.
Optionally, the end face of the measuring tool facing away from one side of the reference tool is a mirror surface, and the end faces of the reference tool facing the rest of the measuring tools are mirror surfaces.
Optionally, the reference jig is used for installing in the one end tip of camera lens structure, and is remaining the measurement tool all is located the same side of reference jig, and a plurality of the internal diameter size of measurement tool is followed and is kept away from the direction of reference jig increases progressively.
Optionally, the reference jig is used for installing in the middle part of camera lens structure, and the rest in the measurement tool is partly located one side of reference jig, and the rest another part in the measurement tool is located the opposite side of reference jig, and is located the internal diameter size of a plurality of measurement tools of reference jig same one side is followed and is kept away from the direction of reference jig increases progressively.
The embodiment of the invention also provides a lens configuration measurement method, which uses the lens configuration measurement jig assembly, and comprises the following steps:
installing a plurality of measuring jigs of the lens configuration jig assembly into a plurality of installation positions of a lens structure respectively;
measuring the plurality of measuring jigs respectively to obtain the assembly data of the main lens barrel and the plurality of lens frames in the lens structure;
wherein the assembly data includes at least one of eccentricity data, inclination data, and air interval data.
Optionally, the step of measuring the plurality of measuring jigs to obtain the assembly parameters of the main lens barrel and the plurality of lens frames in the lens structure includes:
and measuring the inner peripheral surfaces of the plurality of measuring jigs respectively to obtain the eccentric data of the mounting positions corresponding to the measuring jigs.
Optionally, the step of measuring the inner peripheral surfaces of the plurality of measuring jigs includes:
scanning the inner peripheral surface of the measuring jig by using a probe to obtain the axial center position of the inner peripheral surface; or alternatively, the process may be performed,
and taking the axis corresponding to the inner peripheral surface of one measuring jig as a reference axis, and obtaining the axes corresponding to the inner peripheral surfaces of other measuring jigs by adopting a projection method so as to obtain the eccentric data relative to the reference axis.
Optionally, one end face of the plurality of measuring jigs, which is away from the reference jig, is a measuring surface; the step of measuring the plurality of measuring jigs to obtain the assembly parameters of the main lens barrel and the plurality of lens frames in the lens structure comprises the following steps:
and measuring the measuring surfaces of the measuring jigs respectively to obtain the inclination data of the mounting positions corresponding to the measuring jigs.
Optionally, the step of measuring the measurement surfaces of the plurality of measurement jigs includes:
scanning the measurement surface with a probe to obtain the tilt data of the measurement surface; or alternatively, the process may be performed,
the measurement surface is measured by parallel light auto-collimation to obtain the tilt data of the measurement surface.
Optionally, one end face of the plurality of measuring jigs, which is away from the reference jig, is a measuring surface; the step of measuring the plurality of measuring jigs to obtain the assembly parameters of the main lens barrel and the plurality of lens frames in the lens structure comprises the following steps:
and measuring the distance between the measuring surfaces of two adjacent measuring jigs to obtain the air interval data between two adjacent mounting positions.
The lens configuration measurement jig assembly and the measurement method thereof in the embodiment of the invention have the beneficial effects that:
the embodiment of the invention provides a lens configuration measurement jig assembly which is used for being installed on a lens structure. The lens structure comprises a main lens barrel and a plurality of lens frames arranged in the main lens barrel, wherein each lens frame is provided with at least one mounting position for mounting a lens component. The lens configuration measurement jig assembly comprises a plurality of measurement jigs, each measurement jig is of an annular structure, the measurement jigs are used for being correspondingly matched and installed at the installation position, namely, the lens assembly is replaced by the measurement jigs to be installed in the installation position, and due to the fact that the measurement jigs are of the annular structure, independent measurement of eccentric data and inclination data of the installation position can be achieved through measurement of the measurement jigs, meanwhile, detection of the next measurement jig can be achieved through holes of the measurement jigs, and the detection process is more convenient.
The embodiment of the invention also provides a measuring method which is realized based on the lens group head measuring jig assembly, so that the measuring method also has the advantages of being capable of independently measuring the eccentric data and the inclination data of a plurality of mounting positions of a lens structure and convenient in the detection process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a lens configuration measurement fixture assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lens configuration measurement jig assembly according to an embodiment of the invention when the lens configuration measurement jig assembly is mounted on a lens structure;
fig. 3 is a schematic structural diagram of another lens configuration measurement fixture assembly according to an embodiment of the present invention;
fig. 4 is a step diagram of a lens configuration measurement method according to an embodiment of the invention.
Icon: 100-lens configuration measurement jig assembly; 110-measuring jig; 111-a reference jig; 112-a first measurement jig; 113-a second measurement jig; 114-a third measuring jig; 115-fourth measuring jig; 116-a fifth measurement jig; 117-sixth measurement jig; 118-seventh measurement jig; 121—a measurement face; 211-probe; 220-lens structure; 221-main barrel; 222-a lens frame; 223-mounting location.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a lens configuration measurement jig assembly 100 according to the present embodiment, and fig. 2 is a schematic structural diagram of the lens configuration measurement jig assembly 100 according to fig. 1 when mounted on a lens structure 220. Referring to fig. 1 and 2 in combination, the present embodiment provides a lens configuration measurement jig assembly 100.
The lens configuration measurement jig assembly 100 includes a lens structure 220 for mounting thereon. The lens structure 220 includes a main barrel 221 and a plurality of lens frames 222 mounted within the main barrel 221, each lens frame 222 having at least one mounting location 223, the mounting location 223 for mounting a lens assembly. The lens configuration measurement jig assembly 100 comprises a plurality of measurement jigs 110, each measurement jig 110 is of an annular structure, the measurement jigs 110 are correspondingly adapted to be installed at the installation positions 223, namely, the lens assembly is replaced by the measurement jigs 110 to be installed in the installation positions 223, and due to the fact that the measurement jigs 110 are of an annular structure, independent measurement of eccentric data and inclination data of the installation positions 223 can be achieved through measurement of the measurement jigs 110, meanwhile, detection of the next measurement jig 110 can be achieved through the through holes of the measurement jigs 110, and the detection process is more convenient.
It should be noted that, in the description of the present embodiment, the "lens assembly" may be a single lens, or may be a structure formed by bonding a plurality of lenses, for example, two lenses or three lenses.
The lens configuration measurement jig assembly 100 provided in this embodiment is further described below:
with continued reference to fig. 1 and fig. 2, in the present embodiment, the plurality of measurement assemblies installed in the lens structure 220 are sequentially distributed along the axial direction of the main lens barrel 221, and the smallest inner diameter of the plurality of measurement jigs 110 is taken as the reference jig 111, and the inner diameter dimension of the plurality of measurement jigs 110 increases along the direction from the reference jig 111 to the end of the lens structure 220.
Taking the lens configuration measurement jig assembly 100 shown in fig. 1 and fig. 2 as an example, the number of measurement jigs 110 in the lens configuration measurement jig assembly 100 provided in the present embodiment is seven, and the seven measurement jigs 110 are sequentially a first measurement jig 112, a second measurement jig 113, a third measurement jig 114, a fourth measurement jig 115, a fifth measurement jig 116, a sixth measurement jig 117 and a seventh measurement jig 118 along the axial direction of the lens structure 220, wherein the inner diameter dimension of the fifth measurement jig 116 is the smallest, i.e. in the present embodiment, the fifth measurement jig 116 is the reference jig 111. The reference jig 111 is mounted in the middle of the lens structure 220, and part of the rest of the measurement jigs 110 (i.e., the first measurement jig 112, the second measurement jig 113, the third measurement jig 114 and the fourth measurement jig 115) is located at one side of the reference jig 111, and the other part of the rest of the measurement jigs 110 (i.e., the sixth measurement jig 117 and the seventh measurement jig 118) is located at the other side of the reference jig 111.
The inner diameter sizes of the fifth measuring jig 116, the fourth measuring jig 115, the third measuring jig 114, the second measuring jig 113 and the first measuring jig 112 are increased, and the inner diameter sizes of the fifth measuring jig 116, the sixth measuring jig 117 and the seventh measuring jig 118 are increased, so that when the lens configuration measuring jig assembly 100 is installed in the lens structure 220, detection of all the measuring jigs 110 is realized through two ends of the lens structure 220.
Since the inner diameter of the measuring jig 110 increases gradually, the inner circumference of the measuring jig 110 between the end of the lens structure 220 and the reference jig 111 is opposite to the inner circumference of the previous measuring jig 110 in the direction from the end of the lens structure 220 to the reference jig 111, in other words, the projection of the inner circumference of the next measuring jig 110 at the previous measuring jig 110 is located in the inner hole of the previous measuring jig 110. That is, in the present embodiment, along the directions from the first measurement jig 112 to the fifth measurement jig 116, the inner peripheral portion of the second measurement jig 113 protrudes with respect to the inner peripheral portion of the first measurement jig 112, and for example, the inner peripheral portion of the third measurement jig 114 protrudes with respect to the inner peripheral portion of the second measurement jig 113, the inner peripheral portion of the fourth measurement jig 115 protrudes with respect to the inner peripheral portion of the third measurement jig 114, and the inner peripheral portion of the fifth measurement jig 116 protrudes with respect to the inner peripheral portion of the fourth measurement jig 115, so that the first measurement jig 112, the second measurement jig 113, the third measurement jig 114, the fourth measurement jig 115, and the inner peripheral portion of the fifth measurement jig 116 can be sequentially and directly observed from the upper end opening of the lens structure 220, such as the probe 211, and thus the upper end face and the inner peripheral face of the fourth measurement jig 112, the second measurement jig 113, the third measurement jig 114, the fourth measurement jig 115, and the fifth measurement jig 116 can be directly extended from the upper end opening of the lens structure 220 to obtain the set of measurement data. Similarly, the measurement of the lower end surfaces and the inner peripheral surfaces of the fifth measurement jig 116, the sixth measurement jig 117 and the seventh measurement jig 118 can be achieved by upward detection from the lower end opening of the lens structure 220, so as to obtain the assembly data. In this way, the lens structure 220 is more easily and conveniently measured.
It should be noted that, in the present embodiment, the number of the measurement tools 110 in the lens configuration measurement tool assembly 100 is not limited, and it is to be understood that, in other embodiments, a required number of the measurement tools 110 may be formulated according to the number of the mounting positions 223 of the lens structure 220, for example, five or nine measurement tools 110 may be set according to the requirement.
It should be further noted that the arrangement of the measuring tools 110 in the lens configuration measuring tool assembly 100 is not limited in this embodiment, and it is understood that in other embodiments, other arrangements may be adopted according to the radial dimensions of the mounting positions 223 in the lens structure 220.
As an example, fig. 3 shows another lens configuration measuring jig assembly 100 of the present embodiment, according to fig. 3, a reference jig 111 is mounted at one end of a lens structure 220 in the lens configuration measuring jig assembly 100, the rest measuring jigs 110 are located at the same side of the reference jig 111, and the inner diameter sizes of the plurality of measuring jigs 110 are increased along the direction away from the reference jig 111. Specifically, in fig. 3, the reference jig 111 is located at the lower end of the lens structure 220, and the inner diameter of the plurality of measuring jigs 110 increases gradually in the bottom-up direction, and obviously, the reference jig 111 may be mounted at the upper end of the lens structure 220, and the inner diameter of the plurality of measuring jigs 110 increases gradually in the top-down direction.
Further, the end face of the measuring tool 110 facing away from the reference tool 111 is a mirror surface, and the end face of the reference tool 111 facing towards the measuring tool 110 is a mirror surface, so that the end face of the measuring tool 110 can be measured by reflecting light through the mirror surface, and inclination data of the measuring tool 110 can be obtained. Specifically, in fig. 1 and 2, the upper end surfaces of the first measurement tool 112, the second measurement tool 113, the third measurement tool 114 and the fourth measurement tool 115 are mirror surfaces, so that light is projected from top to bottom, and the tilt data of the upper end surfaces of the first measurement tool 112, the second measurement tool 113, the third measurement tool 114 and the fourth measurement tool 115 can be measured; the lower end surfaces of the sixth measuring jig 117 and the seventh measuring jig 118 are mirror surfaces, so that light is projected from bottom to top, and the inclination data of the lower end surfaces of the sixth measuring jig 117 and the seventh measuring jig 118 can be measured. Meanwhile, the upper and lower end surfaces of the fifth measuring jig 116 may be set as mirror surfaces.
Fig. 4 is a step diagram of a lens configuration measurement method according to the present embodiment. Referring to fig. 1, fig. 2 and fig. 4 in combination, in this embodiment, a lens configuration measurement method is further provided to implement measurement on the lens structure 220 by using the lens configuration measurement jig assembly 100. The lens configuration measurement method comprises the following steps:
s01: the plurality of measuring jigs 110 of the lens configuration measuring jig assembly 100 are respectively mounted into the plurality of mounting positions 223 of the lens structure 220.
In the present embodiment, the number of the measuring jigs 110 is seven, the seven measuring jigs 110 are respectively adapted to the seven mounting positions 223 of the lens structure 220, i.e. the peripheral surface of the measuring jig 110 is attached to the periphery of the adapted mounting position 223, and the seven measuring jigs 110 are mounted to the mounting positions 223 of the lens structure 220 to form the structure shown in fig. 2.
S02: the plurality of measuring jigs 110 are respectively used for measuring to obtain the assembly data of the main lens 221 and the plurality of lens frames 222 in the lens structure 220.
The assembly data includes at least one of eccentricity data, inclination data, and air interval data, so the step S02 may include:
s21: the inner circumferential surfaces of the plurality of measuring jigs 110 are measured, respectively, to obtain eccentric data of the mounting positions 223 corresponding to the measuring jigs 110.
Specifically, the probe 211 may be used to scan the inner peripheral surface of the measurement tool 110, so as to obtain the axial position of the inner peripheral surface, that is, the probe 211 contacts the inner peripheral surface of the measurement tool 110 and moves along the circumference of the inner peripheral surface, so as to scan the inner peripheral surface of the measurement tool 110, and further, when the inner peripheral surface position of the measurement tool 110 is determined, the axial position corresponding to the inner peripheral surface may be naturally obtained. In the present embodiment, the reference jig 111 is the fifth measuring jig 116, so that when the eccentric data is measured, the probe 211 extends into the upper end opening of the lens structure 220 to detect the inner peripheral surfaces of the first measuring jig 112 to the fifth measuring jig 116, and simultaneously, the probe 211 extends into the lower end opening of the lens structure 220 to detect the inner peripheral surfaces of the fifth measuring jig 116 to the seventh measuring jig 118.
For the arrangement mode that the reference jig 111 is located at one end of the lens structure 220, for example, the reference jig 111 is located at the upper end of the lens structure 220, the probe 211 may extend into the lens structure 220 from the lower end opening, and sequentially measure the plurality of measuring jigs 110; similarly, if the reference jig 111 is located at the lower end of the lens structure 220, the probe 211 may extend into the lens structure 220 from the upper opening, so as to sequentially measure the plurality of measuring jigs 110.
It should be noted that, the measuring jigs 110 may be detected in other manners, for example, an axis corresponding to an inner peripheral surface of one of the measuring jigs 110 is used as a reference axis, and an axis corresponding to an inner peripheral surface of the other measuring jigs 110 is obtained by a projection method, so as to obtain eccentric data of each measuring jig 110 relative to the reference axis. Specifically, the lens structure 220 with the lens configuration measurement jig assembly 100 is disposed in a secondary measurement device, and the inner circumferences of the plurality of measurement jigs 110 are measured by a projection method, so as to obtain the inner circumference center positions of the measurement jigs 110, and the center position of one measurement jig 110 is taken as a reference center to respectively obtain the positions of the center positions of the other jigs relative to the reference center, so as to obtain the eccentric data.
S22: the measurement surfaces 121 of the plurality of measurement jigs 110 are measured respectively to obtain inclination data of the mounting positions 223 corresponding to the measurement jigs 110.
The measuring surface 121 of the measuring tool 110 is the end surface of the measuring tool 110 facing away from the reference tool 111, and for the reference tool 111, any end surface may be used, and the measuring surface 121 of the measuring tool 110 is a plane.
Since the inner diameter of the measuring tool 110 away from the reference tool 111 increases gradually, at least a portion of the measuring surface 121 of the measuring tool 110 between one end of the lens structure 220 and the reference tool 111 can be exposed, specifically, taking the structure shown in fig. 1 and fig. 2 as an example, measurement of the measuring surfaces 121 of the first measuring tool 112, the second measuring tool 113, the third measuring tool 114, the fourth measuring tool 115 and the fifth measuring tool 116 can be implemented along the direction from top to bottom; similarly, measurement of the measurement surfaces 121 of the seventh measurement jig 118, the sixth measurement jig 117, and the fifth measurement jig 116 can be achieved by measuring in the bottom-up direction.
Specifically, the inclination data of the measurement surface 121 may be obtained by scanning the measurement surface 121 with the probe 211. In this embodiment, the probe 211 extends into the lens structure 220 from the upper end opening, so as to contact the measuring surfaces 121 of the first measuring tool 112, the second measuring tool 113, the third measuring tool 114, the fourth measuring tool 115 and the fifth measuring tool 116, and moves along the circumferential direction of the measuring surfaces 121, so as to scan and obtain the position information of the measuring surfaces 121 of the first measuring tool 112, the second measuring tool 113, the third measuring tool 114, the fourth measuring tool 115 and the fifth measuring tool 116, i.e. determine the position of the plane of the measuring surfaces 121, and obtain the inclination angle of the measuring surfaces 121 relative to the preset plane by comparing the plane of the measuring surfaces 121 with the preset plane, thereby obtaining the inclination data of the corresponding mounting positions 223 of the first measuring tool 112, the second measuring tool 113, the third measuring tool 114, the fourth measuring tool 115 and the fifth measuring tool 116. The "preset plane" may be either a horizontal plane or one of the measurement planes 121.
Similarly, the probe 211 extends into the lens structure 220 from the lower end opening, so as to contact the measuring surfaces 121 of the seventh measuring jig 118, the sixth measuring jig 117 and the fifth measuring jig 116, thereby obtaining the positional information of the measuring surfaces 121 of the seventh measuring jig 118, the sixth measuring jig 117 and the fifth measuring jig 116, and further obtaining the inclination data of the mounting positions 223 corresponding to the seventh measuring jig 118, the sixth measuring jig 117 and the fifth measuring jig 116.
It should be noted that the detection of the measurement surface 121 may be implemented in other manners, for example, the measurement surface 121 may be measured by using a parallel light auto-collimation method. Specifically, the measuring surface 121 is a mirror surface, parallel light is emitted through the collimator, the light beam irradiates the measuring surface 121 and is reflected back to the receiver device, the inclination value of the measuring jig 110 is obtained through the light reflection degree, and the measurement of the inclination values of the plurality of measuring jigs 110 is sequentially and repeatedly realized. The inclination value of the measurement jig 110 is the inclination value of the mounting position 223.
S23: the distance between the measurement faces 121 of the adjacent two measurement jigs 110 is measured to obtain air interval data between the adjacent two mounting locations 223.
Specifically, the positions of the measurement surfaces 121 of the measurement jigs 110 are measured in step S22, so that the distance between two adjacent measurement jigs 110 can be obtained by measuring the distance between the measurement surfaces 121 and the thickness of the measurement jigs 110.
The lens configuration measurement jig assembly 100 and the measurement method thereof provided in the present embodiment have at least the following advantages:
according to the lens configuration measurement jig assembly 100 and the measurement method thereof provided by the embodiment of the invention, the special measurement jig 110 is adopted to replace an actual lens assembly, and meanwhile, the inner diameter dimension relation of the measurement jig 110 is limited, so that the three-dimensional probe 211 can be used for scanning measurement for a simple or complex structure, independent data of inclination and eccentricity under the lens configuration are obtained, the problem that the three-dimensional probe 211 cannot travel to a blind area position to cause measurement due to structural limitation is avoided, and the eccentric state of each mounting position 223 can be measured and obtained by adopting a two-position measurement equipment projection method.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The lens configuration measurement jig assembly is characterized by being arranged on a lens structure (220), wherein the lens structure (220) comprises a main lens barrel (221) and a plurality of lens frames (222) arranged in the main lens barrel (221), each lens frame (222) is provided with at least one mounting position (223), and the mounting positions (223) are used for mounting the lens assemblies in a one-to-one correspondence manner;
the lens configuration measurement jig assembly (100) comprises a plurality of annular measurement jigs (110), wherein the measurement jigs (110) are used for being correspondingly and adaptively installed at the installation positions (223).
2. The lens configuration measurement jig assembly according to claim 1, wherein one of the plurality of measurement jigs (110) having the smallest inner diameter size is a reference jig (111), and the inner diameter sizes of the plurality of measurement jigs (110) are increased in a direction from the reference jig (111) to the end of the lens structure (220).
3. The lens configuration measurement jig assembly according to claim 2, wherein an end face of the measurement jig (110) facing away from the reference jig (111) is a mirror face, and end faces of the reference jig (111) facing the rest of the measurement jigs (110) are mirror faces.
4. The lens configuration measurement jig assembly according to claim 2, wherein the reference jig (111) is configured to be mounted at an end of the lens structure (220), the remaining measurement jigs (110) are all located on the same side of the reference jig (111), and the inner diameter sizes of the measurement jigs (110) are gradually increased along a direction away from the reference jig (111).
5. The lens configuration measurement jig assembly according to claim 2, wherein the reference jig (111) is configured to be mounted in a middle portion of the lens structure (220), a part of the rest of the measurement jigs (110) is located at one side of the reference jig (111), another part of the rest of the measurement jigs (110) is located at the other side of the reference jig (111), and inner diameter sizes of the plurality of measurement jigs (110) located at the same side of the reference jig (111) are increased in a direction away from the reference jig (111).
6. A lens configuration measurement method, characterized in that the lens configuration measurement jig assembly (100) according to claim 1 is used, the lens configuration measurement method comprising:
mounting a plurality of measurement jigs (110) of the lens configuration jig assembly into a plurality of mounting locations (223) of a lens structure (220), respectively;
measuring the plurality of measuring jigs (110) respectively to obtain the assembly data of the main lens barrel (221) and the plurality of lens frames (222) in the lens structure (220);
wherein the assembly data includes at least one of eccentricity data, inclination data, and air interval data.
7. The method according to claim 6, wherein the step of measuring the plurality of measuring jigs (110) to obtain the assembly parameters of the main lens barrel (221) and the plurality of lens frames (222) in the lens structure (220) comprises:
and respectively measuring the inner peripheral surfaces of a plurality of measuring jigs (110) to obtain the eccentric data of the mounting positions (223) corresponding to the measuring jigs (110).
8. The lens configuration measurement method according to claim 7, wherein the step of measuring inner peripheral surfaces of the plurality of measurement jigs (110) respectively includes:
scanning the inner peripheral surface of the measuring jig (110) by using a probe (211) to obtain the axial center position of the inner peripheral surface; or alternatively, the process may be performed,
and taking the axis corresponding to the inner peripheral surface of one measuring jig (110) as a reference axis, and obtaining the axes corresponding to the inner peripheral surfaces of other measuring jigs (110) by adopting a projection method so as to obtain the eccentric data relative to the reference axis.
9. The lens configuration measurement method according to claim 6, wherein one of the plurality of measurement jigs (110) having the smallest inner diameter size is a reference jig (111), one end surface of the plurality of measurement jigs (110) facing away from the reference jig (111), and one end surface of the reference jig (111) is a measurement surface (121); the step of measuring the plurality of measuring jigs (110) to obtain the assembly parameters of the main lens barrel (221) and the plurality of lens frames (222) in the lens structure (220) includes:
and measuring the measuring surfaces (121) of the measuring jigs (110) respectively to obtain the inclination data of the mounting positions (223) corresponding to the measuring jigs (110).
10. The lens configuration measurement method according to claim 9, wherein the step of measuring the measurement surfaces (121) of the plurality of measurement jigs (110) respectively includes:
scanning the measurement face (121) with a probe (211) to obtain the tilt data of the measurement face (121); or alternatively, the process may be performed,
-measuring said measurement face (121) with parallel light auto-collimation to obtain said tilt data of said measurement face (121).
11. The lens configuration measurement method according to claim 6, wherein one of the plurality of measurement jigs (110) having the smallest inner diameter size is a reference jig (111), one end surface of the plurality of measurement jigs (110) facing away from the reference jig (111), and one end surface of the reference jig (111) is a measurement surface (121); the step of measuring the plurality of measuring jigs (110) to obtain the assembly parameters of the main lens barrel (221) and the plurality of lens frames (222) in the lens structure (220) includes:
and measuring the distance between the measuring surfaces (121) of two adjacent measuring jigs (110) to obtain the air interval data between two adjacent mounting positions (223).
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