CN216247688U - Integrated spectral measurement and imaging detection device - Google Patents
Integrated spectral measurement and imaging detection device Download PDFInfo
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- CN216247688U CN216247688U CN202220198145.7U CN202220198145U CN216247688U CN 216247688 U CN216247688 U CN 216247688U CN 202220198145 U CN202220198145 U CN 202220198145U CN 216247688 U CN216247688 U CN 216247688U
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Abstract
The utility model discloses an integrated spectral measurement and imaging detection device, which comprises an imaging unit, a first lens, a second lens, a third lens and a fourth lens, wherein the first lens is provided with a first visual field in an object plane area; the single-point measuring unit comprises a second lens and a single-point measuring probe, and the second lens has a second view in the object plane area; the first view and the second view intersect to form an intersecting view, and the measurement position of the single-point measurement unit is located within the intersecting view. The utility model not only can realize the spectrum detection and the flaw defect detection of the display panel on the same station, but also can ensure that the light energy is not attenuated in the detection process, and has good measurement precision.
Description
Technical Field
The utility model discloses a display panel imaging detection device, belongs to the technical field of display panel detection, and particularly discloses an integrated spectral measurement and imaging detection device.
Background
As technology advances, the evaluation of the characteristics of display panels or luminaries is increasingly important to the characteristics of products. Common light emitters include different types of display panels such as LED, micro LED, MiniLED, LD, etc., and their constituent products include, but are not limited to, consumer electronics products, mobile phone screens, television displays, etc.
For these display products, the evaluation of the light emission characteristics thereof is particularly important for the quality evaluation of the products thereof, and the most important parameters of these quality evaluation indicators include the light emission spectrum, and whether the display products have flaws and defects in the display area.
When spectrum and defect detection is carried out on a display product, a separate spectrometer and an industrial camera are generally adopted for imaging in the prior art, the technical scheme needs at least two stations, and the display panel is switched between the two stations through a moving mechanism to complete time-sharing work. For example, the spectral measurement is carried out at a first station at a first moment, after the measurement is finished, the product is moved to a position below a camera, and imaging detection is carried out on the product at a second moment and a second station based on the camera; the technical scheme has the following technical problems: 1. the detection system has high complexity, namely two detection stations are needed to complete spectral measurement and defect detection; 2. the detection time is long, and especially when the same product needs to perform spectrum measurement and defect detection of a plurality of different display frames, twice the time is needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides an integrated spectral measurement and imaging detection device which not only can realize the spectral detection and flaw defect detection of a display panel on the same station, but also can ensure that the light energy is not attenuated in the detection process and has good measurement precision.
The utility model discloses an integrated spectral measurement and imaging detection device, which comprises an imaging unit, a first lens, a second lens, a third lens and a fourth lens, wherein the first lens is provided with a first visual field in an object plane area; the single-point measuring unit comprises a second lens and a single-point measuring probe, and the second lens has a second view in the object plane area; the first view and the second view intersect to form an intersecting view, and the measurement position of the single-point measurement unit is located within the intersecting view.
In a preferred embodiment of the utility model, a housing is included; a first lens is arranged on the shell, and an optical sensor corresponding to the first lens is arranged in the shell; the shell is further provided with a second lens, and a single-point measuring probe corresponding to the second lens is arranged in the shell.
In a preferred embodiment of the present invention, the single-point measurement probe is disposed offset from the optical axis of the second lens and away from the optical sensor on the image plane of the second lens.
In a preferred embodiment of the utility model, the intersecting views comprise at least a center point of the first view.
In a preferred embodiment of the present invention, the single-point measurement probe is located at a position of a center point of the first field of view relative to a conjugate image point of the second lens.
In a preferred embodiment of the present invention, the product to be tested is located within the first field of view and partially within the intersecting field of view; the single-point measuring probe deviates from the optical axis of the second lens and is arranged at the position of the center of the product to be measured, which is opposite to the conjugate image point of the second lens.
In a preferred embodiment of the present invention, a central axis of the first lens, a central axis of the photosensitive surface of the optical sensor, and a central axis of the product to be measured are coaxially arranged.
In a preferred embodiment of the present invention, the focal length of the first lens is equal to the focal length of the second lens.
In a preferred embodiment of the present invention, a distance between a central axis of the first lens and a central axis of the second lens is adjustable.
In a preferred embodiment of the utility model, the single-point measuring probe is a spectrometer probe or a flicker probe or a single-point standard luminance and chromaticity measuring component or a high-speed photoelectric probe.
The utility model has the beneficial effects that: the utility model has the advantages of simple structure, short measurement time, high light energy utilization rate and good detection precision, and can realize the spectrum detection and flaw defect detection of the display panel on the same station by integrating the imaging unit and the spectrum measurement unit;
furthermore, the utility model is based on the improvement of the industrial camera, and the spectral measurement unit is added on the original industrial camera, so that the method has the advantages of low cost and convenience in manufacturing;
furthermore, the central shaft of the first lens, the central shaft of the optical sensor and the central shaft of the product to be detected are coaxially arranged, so that the imaging unit is more favorable for imaging;
furthermore, multiple groups of spectrum measuring units can be configured on the industrial camera according to requirements, and each group of multiple groups of spectrum measuring units comprises a second lens and a spectrometer, so that the system has good compatibility and is suitable for detection of various display panels;
furthermore, the first lens and the second lens with equal or unequal focal lengths can be selected, so that the lenses with different lengths can be reasonably selected according to different environments, and the interference of the lens with other devices in the detection process is avoided;
furthermore, the probe of the spectrometer comprises a spectrometer sensor probe or a high-speed photoelectric probe or a light intensity detector or an intensity detector, so that the universality of the spectrometer is improved;
furthermore, the distance between the central axis of the first lens and the central axis of the second lens is adjustable, so that the debugging in the product assembling stage is facilitated.
Drawings
FIG. 1 is a schematic view of a first field of view of an integrated spectral measurement and imaging detection apparatus of the present invention;
FIG. 2 is a second view schematic of an integrated spectral measurement and imaging detection apparatus of the present invention;
FIG. 3 is a schematic view of an intersecting field of view of an integrated spectral measurement and imaging detection apparatus of the present invention;
in the figure: the method comprises the following steps of 1-a shell, 2-a first lens, 3-an optical sensor, 4-a second lens, 5-a product to be measured, 6-a single-point measuring probe, 7-a first view, 8-a second view and 9-an intersecting view.
Detailed Description
The utility model will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings and by way of illustration of some alternative embodiments of the utility model. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1-3, the present invention discloses an integrated spectral measurement and imaging detection device, which comprises an imaging unit, wherein the imaging unit comprises a first lens 2 and an optical sensor 3, the first lens 2 has a first view 7 in an object plane region; the single-point measuring unit comprises a second lens 4 and a single-point measuring probe 6, and the second lens 4 has a second view 8 in the object plane area; the first view 7 intersects the second view 8 to form an intersecting view 9, and the measurement position of the single-point measurement unit is located within the intersecting view 9.
Preferably, the present invention is an improvement based on an industrial camera, and comprises a housing 1, wherein 1 first lens 2 is arranged on the housing 1, 1 optical sensor 3 is arranged in the housing 1, and the arrangement position of 1 first lens 2 corresponds to the arrangement position of 1 optical sensor 3; the shell 1 is provided with 1 second lens 4, the shell 1 is internally provided with 1 single-point measuring probe 6, and the arrangement position of the 1 second lens 4 corresponds to the arrangement position of the 1 single-point measuring probe 6.
Preferably, the single-point measurement probe 6 is disposed offset from the optical axis of the second lens 4 on the image plane of the second lens 4 and away from the optical sensor 3.
Preferably, the intersecting view 9 comprises at least the center point of the first view 7.
Preferably, the single-point measurement probe 6 is located at a conjugate image point position of the center point of the first field of view 7 with respect to the second lens 4.
Preferably, when the product to be measured is located in the first view field 7, and a portion of the product to be measured is located in the intersecting view field 9, and the center point of the product to be measured coincides with the center point of the first view field 7, the single-point measurement probe 6 is offset from the optical axis of the second lens 4 and is disposed at a position of the center of the product to be measured corresponding to the conjugate image point of the second lens 4.
Preferably, the central axis of the first lens 2, the central axis of the light-sensing surface of the optical sensor 3 and the central axis of the product 5 to be measured are coaxially arranged.
Preferably, the focal length of the first lens 2 is equal to the focal length of the second lens 4, or the focal length of the first lens 2 is not equal to the focal length of the second lens 4.
Preferably, the distance between the central axis of the first lens 2 and the central axis of the second lens 4 is adjustable.
Preferably, the single-point measurement probe 6 is a spectrometer probe or a flicker probe or a single-point standard luminance and chrominance measurement component or a high-speed photoelectric probe.
The utility model also discloses a display panel detection device which comprises an integrated spectral measurement and imaging detection device.
The object image relationship between the first lens 2 and the optical sensor 3 of the imaging unit of the utility model meets the basic clear imaging condition, and the optical sensor 3 can acquire the whole view BD of the product 5 to be measured, wherein the view BD is the size of the product 5 to be measured.
Preferably, when the single-point measurement probe 6 is required to measure the center C of the product 5 to be measured, the distance from the single-point measurement probe 6 to the nearest edge of the imaging chip is required to be half of the size of the product 5 to be measured, that is, BD/2.
The display panel detection equipment disclosed by the utility model not only can realize spectrum detection and flaw defect detection on the display panel on the same station, but also can ensure that light energy is not attenuated in the detection process, and has good measurement precision.
It will be understood by those skilled in the art that the foregoing is merely exemplary of the present invention, and is not intended to limit the utility model to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, combinations, alternatives, and equivalents falling within the spirit and scope of the utility model.
Claims (10)
1. An integrated spectral measurement and imaging detection device, characterized in that: comprises that
An imaging unit comprising a first lens (2) and an optical sensor (3), the first lens (2) having a first field of view (7) in an object plane region;
the single-point measuring unit comprises a second lens (4) and a single-point measuring probe (6), and the second lens (4) has a second visual field (8) in the object plane area;
the first view (7) intersects the second view (8) to form an intersecting view (9), and the measurement position of the single-point measurement unit is located within the intersecting view (9).
2. The integrated spectral measurement and imaging detection device of claim 1, wherein:
comprises a shell (1);
a first lens (2) is arranged on the shell (1), and an optical sensor (3) corresponding to the first lens (2) is arranged in the shell (1);
the shell (1) is further provided with a second lens (4), and a single-point measuring probe (6) corresponding to the second lens (4) is arranged in the shell (1).
3. The integrated spectral measurement and imaging detection device of claim 1 or 2, wherein: the single-point measuring probe (6) deviates from the optical axis of the second lens (4) on the image plane of the second lens (4) and is arranged far away from the optical sensor (3).
4. The integrated spectral measurement and imaging detection device of claim 1 or 2, wherein: the intersecting field of view (9) comprises at least a center point of the first field of view (7).
5. The integrated spectral measurement and imaging detection device of claim 3, wherein: the single-point measuring probe (6) is positioned at the position of the central point of the first visual field (7) relative to the conjugate image point of the second lens (4).
6. The integrated spectral measurement and imaging detection device of claim 1 or 2, wherein:
the product to be tested is positioned in the first visual field (7), and part of the product to be tested is positioned in the intersecting visual field (9);
the single-point measuring probe (6) deviates from the optical axis of the second lens (4) and is arranged at the position of the conjugate image point of the center of the product to be measured relative to the second lens (4).
7. The integrated spectral measurement and imaging detection device of claim 6, wherein:
the central shaft of the first lens (2), the central shaft of the light-sensitive surface of the optical sensor (3) and the central shaft of the product to be detected (5) are coaxially arranged.
8. The integrated spectral measurement and imaging detection device of claim 1, wherein: the focal length of the first lens (2) is equal to the focal length of the second lens (4).
9. The integrated spectral measurement and imaging detection device of claim 1, wherein: the distance between the central axis of the first lens (2) and the central axis of the second lens (4) is adjustable.
10. The integrated spectral measurement and imaging detection device of claim 1, wherein: the single-point measuring probe (6) is a spectrometer probe or a flicker probe or a single-point standard brightness and chromaticity measuring component or a high-speed photoelectric probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198145.7U CN216247688U (en) | 2022-01-25 | 2022-01-25 | Integrated spectral measurement and imaging detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198145.7U CN216247688U (en) | 2022-01-25 | 2022-01-25 | Integrated spectral measurement and imaging detection device |
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| Publication Number | Publication Date |
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| CN216247688U true CN216247688U (en) | 2022-04-08 |
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| CN202220198145.7U Active CN216247688U (en) | 2022-01-25 | 2022-01-25 | Integrated spectral measurement and imaging detection device |
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