CN115014725A - Optical measurement equipment, installation method and application method of display device - Google Patents
Optical measurement equipment, installation method and application method of display device Download PDFInfo
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- CN115014725A CN115014725A CN202210956789.2A CN202210956789A CN115014725A CN 115014725 A CN115014725 A CN 115014725A CN 202210956789 A CN202210956789 A CN 202210956789A CN 115014725 A CN115014725 A CN 115014725A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 69
- 238000005259 measurement Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 title abstract description 12
- 239000013307 optical fiber Substances 0.000 claims abstract description 164
- 230000008878 coupling Effects 0.000 claims abstract description 162
- 238000010168 coupling process Methods 0.000 claims abstract description 162
- 238000005859 coupling reaction Methods 0.000 claims abstract description 162
- 230000000712 assembly Effects 0.000 claims abstract description 62
- 238000000429 assembly Methods 0.000 claims abstract description 62
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000001228 spectrum Methods 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims description 51
- 238000007689 inspection Methods 0.000 claims description 10
- 230000003595 spectral effect Effects 0.000 abstract description 11
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
Abstract
The application relates to a display device optical measurement device, an installation method and an application method, wherein the display device optical measurement device comprises an alignment structure, a plurality of optical fiber coupling assemblies, a spectrum detection assembly and a detection platform; the optical fiber coupling assembly comprises a lens and an optical fiber coupled with the lens, the optical fiber coupling assembly is assembled on the alignment structure, optical axes of at least part of the optical fiber coupling assembly are parallel to each other, and the alignment structure is used for aligning the optical fiber coupling assembly so that the optical axis of the optical fiber coupling assembly is perpendicular to the detection platform; the spectral detection assembly is connected with the optical fibers of the plurality of optical fiber coupling assemblies. The spectrum characteristics of a plurality of point positions of the display device can be obtained at one time.
Description
Technical Field
The application relates to the technical field of optical instruments, in particular to an optical measurement device of a display device, an installation method and an application method.
Background
With the rapid development of display technology, people have higher and higher requirements on the display quality and performance of display devices. Display devices such as LCD, OLED, MiniLED, and micro led are increasingly widely used. Display technologies with high brightness, wide color gamut, high efficiency, long lifetime, and the like have been rapidly developed.
The spectrometer is a basic optical measuring instrument, and the principle of the spectrometer is that various detailed information of incident light, such as radiometric, photometric and colourmetric physical quantities, is obtained through analyzing and obtaining various detailed information of the incident light by acquiring a radiated, reflected or transmitted optical signal of a target object and processing the optical and electrical signals to obtain a spectral power distribution curve of the incident light, so that the identification of a material structure and a component and the measurement of the optical property of a material are realized.
The optical fiber spectrometer adopts optical fibers as optical signal coupling devices, and couples measured light into the spectrometer for spectral analysis. The basic configuration of the fiber spectrometer generally comprises an optical fiber, a slit, a collimation system, a dispersion system, an imaging system, a detector and the like, and the fiber spectrometer has the advantages that the flexibility of a measuring system is high, and a user can build a spectrum acquisition system according to needs.
However, the spectrometer can only obtain spectral information for one location of an object, such as a display device, at a time, and multiple realignments are required to obtain the multi-point spectral characteristics of the display device. On the other hand, the aiming of the spectral measurement usually needs the aiming by means of an aiming camera or an external light source, and the structure is complex and the coaxial aiming is difficult to realize.
Disclosure of Invention
The embodiment of the application provides optical measurement equipment, an installation method and an application method of a display device, which can acquire multipoint spectral characteristics of the display device at one time.
In a first aspect, there is provided a display device optical measurement apparatus comprising:
an alignment structure;
a plurality of optical fiber coupling assemblies, wherein each optical fiber coupling assembly comprises a lens and an optical fiber coupled with the lens, the optical fiber coupling assemblies are arranged on the alignment structure, and the optical axes of at least part of the optical fiber coupling assemblies are parallel to each other;
an inspection platform, the alignment structure for aligning the fiber coupling assembly perpendicular to the inspection platform;
and the spectrum detection assembly is connected with the optical fibers of the optical fiber coupling assemblies.
In some embodiments, the fiber coupling assemblies are arranged in an array.
In some embodiments, the plurality of fiber optic coupling assemblies includes a calibration fiber optic coupling assembly;
the display device optical measurement apparatus further comprises a collimated light source;
the optical fiber of the calibration optical fiber coupling component comprises a branch optical fiber, and the collimation light source is connected with the branch optical fiber.
In some embodiments, the alignment structure includes a horizontal portion having a plurality of mounting points disposed thereon, and the fiber coupling assembly is disposed at the mounting points.
In some embodiments, the optical fiber is connected to the lens through an optical fiber connecting seat, and the position of the lens can be adjusted along the extending direction of the optical axis to adjust the relative distance between the lens and the optical fiber connecting seat;
in the use state, the end of the optical fiber is positioned on the focus of the lens.
In a second aspect, there is provided a method of mounting an optical measuring apparatus for a display device, including:
pre-positioning a plurality of optical fiber coupling assemblies, wherein each optical fiber coupling assembly comprises a lens and an optical fiber coupled with the lens;
adjusting the angles of the optical fiber coupling assemblies to enable the optical fiber coupling assemblies to be perpendicular to the detection platform, and fixing the optical axes of the optical fiber coupling assemblies after the optical axes of the optical fiber coupling assemblies are parallel to each other;
and connecting the optical fibers of a plurality of optical fiber coupling assemblies to the same spectrum detection assembly.
In some embodiments, pre-positioning a plurality of fiber coupling assemblies comprises: pre-positioning a plurality of fiber coupling assemblies above an inspection platform;
pre-positioning a plurality of fiber coupling assemblies above a target point, comprising:
positioning the optical fiber coupling component above a target point in advance according to the fixed focal length of a lens in the optical fiber coupling component; alternatively, the first and second electrodes may be,
the fiber coupling assembly is pre-positioned above the target point and the target point is within the depth of field.
In some embodiments, adjusting the angles of the plurality of optical fiber coupling assemblies to be perpendicular to the inspection platform, and fixing the optical axes of the plurality of optical fiber coupling assemblies after being parallel to each other, includes:
connecting a collimated light source to the optical fiber coupling assembly;
turning on a collimation light source, and emitting calibration light through an optical fiber coupling assembly;
adjusting the angle of the optical fiber coupling assembly to enable the calibrated light intensity vertically reflected by a plane reflector arranged on the detection platform to be maximum;
locking the fiber coupling assembly;
and the like, all the optical fiber coupling components are locked.
In a third aspect, a method for applying an optical measurement apparatus for a display device is provided, which includes:
placing a display device on a detection platform;
adjusting the display device to enable the optical axis of at least part of optical fiber coupling assemblies arranged on the alignment structure to be perpendicular to the display device, wherein each optical fiber coupling assembly comprises a lens and an optical fiber coupled with the lens;
and adjusting the working distance between the display device and the optical fiber coupling component.
In some embodiments, adjusting the display device such that the optical axis of at least a portion of the fiber coupling assemblies assembled on the alignment structure is perpendicular to the display device comprises:
connecting a collimated light source to the optical fiber coupling assembly;
turning on a collimation light source, and emitting calibration light through an optical fiber coupling assembly;
and adjusting the angle of the display device to maximize the calibrated light intensity reflected by the display device.
In some embodiments, adjusting the working distance between the display device and the fiber coupling assembly comprises:
adjusting the display device or the alignment structure so that the display device is positioned on the fixed focal length of the lens in the optical fiber coupling assembly; alternatively, the first and second electrodes may be,
and adjusting the display device or the alignment structure so that the display device is positioned within the depth of field range of the lens in the optical fiber coupling assembly.
The technical scheme who provides this application brings beneficial effect includes:
the optical fiber coupling assemblies of the optical measurement device provided by the embodiment of the application are provided with a plurality of optical fiber coupling assemblies, the spectral characteristics of a plurality of point positions on the display device can be measured at one time, and the optical axes of at least part of the optical fiber coupling assemblies are parallel to each other, so that coaxial measurement is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a fiber coupling assembly according to an embodiment of the present disclosure;
fig. 2 is a schematic view of an optical measurement apparatus of a display device according to an embodiment of the present application.
In the figure: 1. an alignment structure; 11. a horizontal portion; 2. a fiber coupling assembly; 20. a lens; 21. an optical fiber; 22. calibrating the optical fiber coupling component; 23. branching fibers; 24. an optical fiber connecting seat; 3. a spectral detection assembly; 4. detecting a platform; 5. a collimated light source.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and 2, the present application provides a display device optical measurement apparatus including an alignment structure 1, a plurality of fiber coupling assemblies 2, a spectral detection assembly 3, and a detection platform 4; the optical fiber coupling assembly 2 comprises a lens 20 and an optical fiber 21 coupled with the lens 20, the optical fiber coupling assembly 2 is arranged on the alignment structure 1, optical axes of at least part of the optical fiber coupling assemblies 2 are parallel to each other, and the alignment structure 1 is used for aligning the optical fiber coupling assemblies 2 so that the optical axes of the optical fiber coupling assemblies 2 are perpendicular to the detection platform 4; the spectrum detecting assembly 3 is connected with the optical fibers 21 of the plurality of optical fiber coupling assemblies 2.
The optical measurement device of the display device provided by the embodiment has a plurality of optical fiber coupling assemblies 2, can measure the spectral characteristics of a plurality of points on the display device at one time, and the optical axes of at least part of the optical fiber coupling assemblies 2 are parallel to each other to realize coaxial measurement.
The spectrum sensing assembly 3 may use a spectrometer or other instrument for measuring a spectrum.
When the optical fiber coupling assemblies 2 are arranged on the alignment structure 1, the optical fiber coupling assemblies 2 may be arranged in an array, and there are various alternative ways, for example, as shown in fig. 2, as an example, the optical fiber coupling assemblies 2 are arranged in a rectangular array, and as another example, the optical fiber coupling assemblies 2 are arranged in a circular array.
In order to realize coaxial adjustment of each optical fiber coupling component 2, referring to fig. 2, in some preferred embodiments, the plurality of optical fiber coupling components 2 include a calibration optical fiber coupling component 22, and an optical axis of the calibration optical fiber coupling component 22 is perpendicular to the detection platform 4, that is, one optical fiber coupling component 2 of the plurality of optical fiber coupling components 2 is used as the calibration optical fiber coupling component 22.
In the case of coaxial calibration and measurement, a light source is used, and therefore, in some preferred embodiments, as shown in fig. 2, the display device optical measurement apparatus further includes a collimated light source 5; the optical fiber 21 of the calibration optical fiber coupling assembly 22 includes a branch optical fiber 23, the collimated light source 5 is connected to the branch optical fiber 23, the branch optical fiber 23 can adopt a one-to-two optical fiber, so as to ensure that the light emitted from the collimated light source 5 can pass through the calibration optical fiber coupling assembly 22 and be emitted to the target point 6, and the light reflected by the plane mirror arranged at the target point 6 enters the spectrum detection assembly 3 after passing through the calibration optical fiber coupling assembly 22.
The collimation light source 5 can adopt an LED light source or a laser light source, and is reasonably selected according to actual detection requirements.
When the coaxial calibration is performed, a collimated light source 5 can be used, and is connected with each optical fiber coupling component 2 in turn to perform the coaxial calibration. Or a plurality of collimated light sources 5 may be used.
Referring to fig. 2, in some embodiments, the alignment structure 1 includes a horizontal portion 11, and a plurality of mounting points are disposed on the horizontal portion 11, and each mounting point mounts one fiber coupling assembly 2, so as to mount all the fiber coupling assemblies 2.
Referring to fig. 1, in some preferred embodiments, the optical fiber 21 is connected to the lens 20 through the optical fiber connecting seat 24, and the position of the lens 20 can be adjusted along the extending direction of the optical axis to adjust the relative distance between the lens 20 and the optical fiber connecting seat 24, so as to be able to adjust to couple the lens 20 and the optical fiber 21; in the use state, the end of the optical fiber 21 is located at the focal point of the lens 20, so as to ensure that the optical fiber 21 is coupled with the focal point of the lens 20.
The optical fiber 21 can be connected with the spectrum detection component or the brightness measuring device, the parallel light source is used for directly irradiating the lens 20, and the adjustment is carried out so that the peak of the spectrum detection component is the highest or the measured value of the brightness measuring device reaches the maximum, which indicates that the coupling is already carried out; the fiber attachment receptacle 24 may employ off-the-shelf mechanisms, such as, as one example, a fiber flange for the fiber attachment receptacle 24.
It should be noted that the optical measurement device of the display device may further include a plurality of manipulators, the optical fiber coupling assembly 2 is mounted on the manipulators, and the adjustment and fixation of the optical fiber coupling assembly 2 are realized by controlling the manipulators.
In order to ensure that each optical fiber coupling component 2 of the display device optical measurement apparatus is coaxial, the embodiment of the present application further provides an installation method of the display device optical measurement apparatus, which is suitable for the display device optical measurement apparatus provided by the foregoing embodiment, and includes the following steps:
101: a plurality of optical fiber coupling assemblies 2 are pre-positioned, the optical fiber coupling assemblies 2 including a lens 20 and an optical fiber 21 coupled to the lens 20.
102: and adjusting the angles of the optical fiber coupling assemblies 2 to enable the angles to be perpendicular to the detection platform 4, and fixing the optical axes of the optical fiber coupling assemblies 2 after the optical axes are parallel to each other.
103: the optical fibers of a plurality of optical fiber coupling assemblies 2 are connected to the same spectral detection assembly 3.
Compared with the coaxial installation and adjustment by using an external device, the installation method provided by the embodiment of the application has the problems that the whole device is complex and heavy, and the coaxial installation and adjustment effect is difficult to guarantee, and the installation method provided by the embodiment of the application utilizes an internal coaxial calibration mode, utilizes the optical fiber coupling components 2 to enable the optical axes of the optical fiber coupling components 2 to be perpendicular to the detection platform 4, and then adjusts the rest optical fiber coupling components 2 to enable the optical axes of the optical fiber coupling components 2 to be perpendicular to the detection platform 4, so that the coaxial installation and adjustment calibration is completed.
In the present application, the optical fiber coupling assembly 2 and the detection platform 4 have various arrangements in orientation according to actual detection requirements, such as the optical fiber coupling assembly 2 is located above the detection platform 4 as an example.
At this time, in step 101, pre-positioning the plurality of fiber coupling assemblies 2 includes: a plurality of fiber coupling assemblies 2 are pre-positioned above the detection platform 4.
In particular, there are a number of ways to pre-position the fiber coupling assembly 2 above the detection platform 4.
For example, in a preferred embodiment, the optical fiber coupling assembly 2 can be pre-positioned above the detection platform 4 according to the fixed focal length of the lens 20 in the optical fiber coupling assembly 2.
As another example, in another preferred embodiment, the fiber optic coupling assembly 2 is pre-positioned above the inspection platform 4 such that the inspection platform 4 is within the depth of field of the lens 20 in the fiber optic coupling assembly 2.
In the step 102, the angles of the plurality of optical fiber coupling assemblies 2 are adjusted to be perpendicular to the detection platform 4, and the optical axes of the plurality of optical fiber coupling assemblies 2 are parallel to each other and then fixed, and the method specifically includes the following steps:
201: a collimated light source 5 is connected to the fiber coupling assembly 2.
202: the collimated light source 5 is turned on and the calibration light is emitted downward through the fiber coupling assembly 2.
203: the angle of the optical fiber coupling component 2 is adjusted to maximize the calibrated light intensity vertically reflected by the plane mirror arranged on the detection platform 4.
Specifically, in step 203, the optical fiber 21 of the optical fiber coupling component 2 is further connected to the spectrum detection component 3, the reflected calibration light enters the spectrum detection component 3, and when the peak of the peak in the spectrum detection component 3 is the highest, it indicates that the calibration light intensity reaches the maximum.
204: locking the optical fiber coupling components 2, and so on, locking all the optical fiber coupling components 2.
In the above steps, one collimated light source 5 may be used to connect the optical fiber coupling assemblies 2 in sequence, or one collimated light source 5 may be connected to each optical fiber coupling assembly 2.
The embodiment of the present application further provides an application method of the optical measurement device for the display device, which is suitable for the optical measurement device for the display device provided in the above embodiment, and the application method includes the following steps:
301: the display device is placed on the detection platform 4.
302: the display device is adjusted so that the optical axis of at least a part of the optical fiber coupling module 2 assembled on the alignment structure 1 is perpendicular to the display device, and the optical fiber coupling module 2 includes a lens 20 and an optical fiber 21 coupled to the lens 20.
303: the working distance between the display device and the fiber coupling assembly 2 is adjusted.
After the adjustment of the working distance is completed, the measurement of the spectrum information of multiple viewing angles can be started.
Wherein, the adjusting the display device to make the optical axis of at least part of the optical fiber coupling assemblies 2 assembled on the alignment structure 1 perpendicular to the display device comprises the following steps:
401: a collimated light source 5 is connected to the fiber coupling assembly 2.
402: the collimated light source 5 is turned on and the calibration light is emitted through the fiber coupling assembly 2.
403: and adjusting the angle of the display device to maximize the calibrated light intensity reflected by the display device. In specific judgment, when the peak in the spectrum detection component 3 is the highest, the calibration light intensity is indicated to be the maximum.
There are various methods for adjusting the working distance between the display device and the optical fiber coupling assembly 2.
For example, as an example, the alignment structure 1 is moved while holding the display device stationary so that the display device is at a fixed focal length of the lens 20 in the fiber coupling assembly 2.
Alternatively, the display device is moved while holding the alignment structure 1 stationary so that the display device is at a fixed focal length of the lens 20 in the fiber coupling assembly 2.
As another example, the alignment structure 1 is moved to position the display device within the depth of field of the lens 20 in the fiber coupling assembly 2 while holding the display device stationary.
Alternatively, the display device is moved while the alignment structure 1 is held stationary so that the display device is located within the depth of field of the lens 20 in the fiber coupling assembly 2.
The working distance is adjusted to maximize the light intensity of each channel (i.e. the channel of the fiber coupling component 2) of the optical measurement device of the display device.
In a word, the optical measurement equipment, the installation method and the application method of the display device can realize multi-point coaxial measurement, do not need to be realigned for multiple times, can carry out high-precision alignment measurement, and improve the measurement efficiency.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. An optical measuring apparatus for a display device, comprising:
an alignment structure (1);
a plurality of optical fiber coupling assemblies (2), wherein each optical fiber coupling assembly (2) comprises a lens (20) and an optical fiber (21) coupled with the lens (20), the optical fiber coupling assemblies (2) are arranged on the alignment structure (1), and the optical axes of at least part of the optical fiber coupling assemblies (2) are parallel to each other;
an inspection platform (4), the alignment structure (1) for aligning the fiber coupling assembly (2) perpendicular to the inspection platform (4);
and the spectrum detection assembly (3) is connected with the optical fibers (21) of the optical fiber coupling assemblies (2).
2. The display device optical measurement apparatus of claim 1, wherein:
the optical fiber coupling components (2) are arranged in an array.
3. The display device optical measurement apparatus of claim 1, wherein:
the plurality of optical fiber coupling assemblies (2) comprise calibration optical fiber coupling assemblies (22);
the display device optical measurement apparatus further comprises a collimated light source (5);
the optical fiber (21) of the calibration optical fiber coupling component (22) comprises a branch fiber (23), and the collimation light source (5) is connected to the branch fiber (23).
4. The display device optical measurement apparatus of claim 1, wherein:
the aligning structure (1) comprises a horizontal part (11), a plurality of mounting points are arranged on the horizontal part (11), and the optical fiber coupling assembly (2) is assembled on the mounting points.
5. The display device optical measurement apparatus of claim 1, wherein:
the optical fiber (21) is connected with the lens (20) through an optical fiber connecting seat (24), and the position of the lens (20) can be adjusted along the extending direction of the optical axis so as to adjust the relative distance between the lens (20) and the optical fiber connecting seat (24);
in the use state, the end of the optical fiber (21) is positioned on the focal point of the lens (20).
6. A method of mounting an optical measuring device for a display device, comprising:
pre-positioning a plurality of optical fiber coupling assemblies (2), wherein each optical fiber coupling assembly (2) comprises a lens (20) and an optical fiber (21) coupled with the lens (20);
the angles of the optical fiber coupling assemblies (2) are adjusted to be perpendicular to the detection platform (4), and the optical axes of the optical fiber coupling assemblies (2) are parallel to each other and then fixed;
and connecting the optical fibers (21) of a plurality of optical fiber coupling assemblies (2) to the same spectrum detection assembly (3).
7. The mounting method of the optical measuring device of the display device according to claim 6, wherein the pre-positioning of the plurality of fiber coupling members (2) comprises: pre-positioning a plurality of fiber coupling assemblies (2) above an inspection platform (4);
pre-positioning a plurality of fiber coupling assemblies (2) above a target point (6), comprising:
the optical fiber coupling component (2) is prepositioned above a target point according to the fixed focal length of a lens (20) in the optical fiber coupling component (2); alternatively, the first and second electrodes may be,
the fiber coupling assembly (2) is pre-positioned above the target point (6) and the target point is within the depth of field.
8. The method for mounting an optical measuring device of a display device according to claim 7, wherein the angle of the plurality of optical fiber coupling assemblies (2) is adjusted to be perpendicular to the inspection platform (4), and the optical axes of the plurality of optical fiber coupling assemblies (2) are parallel to each other and then fixed, comprising:
connecting a collimated light source (5) on the optical fiber coupling component (2);
turning on the collimation light source (5), and emitting calibration light through the optical fiber coupling component (2);
adjusting the angle of the optical fiber coupling component (2) to enable the calibrated light intensity vertically reflected by a plane reflector arranged on the detection platform (4) to be maximum;
locking the fiber coupling assembly (2);
and the like, all the optical fiber coupling assemblies (2) are locked.
9. An application method of an optical measuring device of a display device is characterized by comprising the following steps:
placing the display device on the detection platform (4);
adjusting the display device to enable the optical axis of at least part of the optical fiber coupling assembly (2) assembled on the alignment structure (1) to be perpendicular to the display device, wherein the optical fiber coupling assembly (2) comprises a lens (20) and an optical fiber (21) coupled with the lens (20);
adjusting a working distance between a display device and the fiber coupling assembly (2).
10. The method of using the optical measuring apparatus of the display device according to claim 9, wherein adjusting the display device such that the optical axis of at least a portion of the fiber coupling assembly (2) assembled on the alignment structure (1) is perpendicular to the display device comprises:
connecting a collimated light source (5) on the optical fiber coupling component (2);
turning on the collimating light source (5), and emitting calibration light through the optical fiber coupling component (2);
and adjusting the angle of the display device to maximize the calibrated light intensity vertically reflected by the display device.
11. The method of using the optical measurement device of the display device as claimed in claim 9, wherein adjusting the working distance between the display device and the fiber coupling assembly (2) comprises:
adjusting the display device or the alignment structure (1) so that the display device is located at a fixed focal length of a lens (20) in the fiber coupling assembly (2); alternatively, the first and second electrodes may be,
the display device or the alignment structure (1) is adjusted such that the display device is located within the depth of field of the lens (20) in the fiber coupling assembly (2).
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Application publication date: 20220906 |