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KR20080065731A - Non-destructive measurement apparatus of chromaticity and brightness - Google Patents

Non-destructive measurement apparatus of chromaticity and brightness Download PDF

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KR20080065731A
KR20080065731A KR1020070002740A KR20070002740A KR20080065731A KR 20080065731 A KR20080065731 A KR 20080065731A KR 1020070002740 A KR1020070002740 A KR 1020070002740A KR 20070002740 A KR20070002740 A KR 20070002740A KR 20080065731 A KR20080065731 A KR 20080065731A
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chromaticity
ccd camera
destructive
luminance
information
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김경석
장호섭
정성욱
강기수
최태호
이건정
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조선대학교산학협력단
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/465Measurement of colour; Colour measuring devices, e.g. colorimeters taking into account the colour perception of the eye; using tristimulus detection
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44Electric circuits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44Electric circuits
    • G01J2001/4446Type of detector
    • G01J2001/448Array [CCD]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J2003/467Colour computing

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  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

본 발명은 비파괴 측정장치인 전단간섭계에 탑재된 컬러 CCD카메라를 통하여 색도 및 휘도 정보를 획득하고, 이를 통하여 측정환경을 최적화하는 한편 대상물의 수명을 평가할 수 있도록 한 비파괴 색도 휘도 측정장치에 관한 것이다.The present invention relates to a non-destructive chromaticity luminance measuring apparatus which obtains chromaticity and luminance information through a color CCD camera mounted on a shear interferometer, which is a non-destructive measuring apparatus, thereby optimizing a measurement environment and evaluating the life of an object.

이를 위하여, 본 발명은 컬러 CCD카메라가 구비된 비파괴 측정장치에 있어서, 대상물의 색도 및 휘도 정보를 획득하기 위한 컬러 CCD카메라와, 상기 CCD카메라에 의해 획득된 색도 및 휘도 정보를 저장하기 위한 메모리부와, 상기 메모리부에 저장된 대상물의 변형 전 휘도 정보와 변형 후 휘도 정보를 대비하여 측정환경을 최적화하기 위한 휘도 비교부 및, 대상물로부터 획득된 색도 정보와 기 저장된 색도 정보를 비교하여 대상물의 수명을 평가하기 위한 수명평가부로 구성된 것을 특징으로 한다. 상기의 기술적 구성에 따르면, 비파괴 측정장치, 예컨대 전단간섭계에 탑재된 CCD카메라를 통하여 휘도 및 색도 정보를 획득하고, 이를 통하여 측정환경의 최적화 및 대상물의 수명평가를 함으로써 종래 변형의 기울기만을 측정하던 전단간섭계의 활용을 극대화시키는 한편 장치의 효용성을 더욱 높일 수 있다는 효과가 있다.To this end, the present invention is a non-destructive measurement device equipped with a color CCD camera, a color CCD camera for obtaining the chromaticity and luminance information of the object, and a memory unit for storing the chromaticity and luminance information obtained by the CCD camera And a luminance comparator for optimizing a measurement environment by contrasting luminance information before deformation and luminance information after deformation stored in the memory unit, and comparing the chromaticity information obtained from the object with previously stored chromaticity information. Characterized in that it consists of a lifetime evaluation unit for evaluation. According to the above technical configuration, a non-destructive measuring device, such as a CCD camera mounted on a shear interferometer to obtain the brightness and chromaticity information, through which the optimization of the measurement environment and the life of the object by evaluating the shear of the conventional deformation only shear Maximizing the use of interferometers, the effect of the device can be further enhanced.

Description

비파괴 색도 휘도 측정장치{NON-DESTRUCTIVE MEASUREMENT APPARATUS OF CHROMATICITY AND BRIGHTNESS}NON-DESTRUCTIVE MEASUREMENT APPARATUS OF CHROMATICITY AND BRIGHTNESS}

도 1은 본 발명에 따른 비파괴 색도 휘도 측정장치의 전체도이다. 1 is a general view of a non-destructive chromaticity luminance measuring apparatus according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

본 발명은 비파괴 색도 휘도 측정장치에 관한 것으로, 더욱 상세하게는 비파괴 측정장치인 전단간섭계에 구비된 컬러 CCD카메라를 통하여 색도 및 휘도 정보를 획득하고, 이를 통하여 측정환경을 최적화하는 한편 대상물의 수명을 평가할 수 있도록 한 비파괴 색도 휘도 측정장치에 관한 것이다. The present invention relates to a non-destructive chromaticity luminance measuring apparatus, and more particularly, to obtain chromaticity and luminance information through a color CCD camera provided in the shear interferometer, which is a non-destructive measuring apparatus, thereby optimizing the measurement environment and improving the life of the object. A non-destructive chromaticity luminance measuring device which enables evaluation.

일반적으로 광학 간섭계는 레이저나 백색광 등을 이용한 비파괴 검사분야, 거리측정분야, 위치결정분야 등 각 첨단기술분야에 널리 사용되고 있다. In general, optical interferometers are widely used in each of the high-tech fields, such as non-destructive inspection field, distance measurement field, positioning field using a laser or white light.

이중 비파괴 측정장치로 전단간섭계가 개시되어 있으나 이는 변형의 기울기만을 측정함으로써, 고가의 장비임에도 불구하고 산업 전반에 걸쳐 그 활용도가 극히 낮다는 문제점이 있었다. Shear interferometer has been disclosed as a dual non-destructive measuring device, but by measuring only the slope of the deformation, there is a problem that its utilization is extremely low throughout the industry despite the expensive equipment.

본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로, 그 목적은 비파괴 측정장치, 예컨대 전단간섭계의 컬러 CCD카메라를 통하여 색도 및 휘도 정보를 획득하고, 이를 통하여 대상물의 변형 전과 대상물의 변형 후의 측정환경을 최적화하는 한편 대상물의 색도변화에 따른 수명을 평가할 수 있도록 한 비파괴 색도 휘도 측정장치를 제공하는 데 있다. The present invention has been made to solve the above-mentioned problems, the object of which is to obtain chromaticity and luminance information through a non-destructive measuring device, such as a color CCD camera of a shear interferometer, through which the measurement environment before and after deformation of the object The present invention provides a non-destructive chromaticity luminance measuring device capable of optimizing the performance and evaluating the lifetime according to the chromaticity change of an object.

본 발명은 상기의 기술적 과제를 달성하기 위하여 컬러 CCD카메라가 구비된 비파괴 측정장치에 있어서, 대상물의 색도 및 휘도 정보를 획득하기 위한 컬러 CCD카메라와, CCD카메라에 의해 획득된 색도 및 휘도 정보를 저장하기 위한 메모리부와, 메모리부에 저장된 대상물의 변형 전 휘도 정보와 변형 후 휘도 정보를 대비하여 측정환경을 최적화하기 위한 휘도 비교부 및, 대상물로부터 획득된 색도 정보와 기 저장된 색도 정보를 비교하여 대상물의 수명을 평가하기 위한 수명평가부로 구성된 것을 특징으로 한다. The present invention is a non-destructive measuring device equipped with a color CCD camera to achieve the above technical problem, a color CCD camera for obtaining the chromaticity and luminance information of the object, and the chromaticity and luminance information obtained by the CCD camera A memory comparator, a brightness comparator for optimizing a measurement environment by comparing the brightness information before and after deformation of the object stored in the memory part, and comparing the chromaticity information obtained from the object with previously stored chromaticity information. Characterized in that it consists of a life assessment unit for evaluating the life of the.

이하, 첨부도면을 참조하여 본 발명에 따른 비파괴 색도 휘도 측정장치의 바람직한 실시 예를 상세히 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the non-destructive chromaticity luminance measuring apparatus according to the present invention.

도 1은 본 발명에 따른 비파괴 색도 휘도 측정장치의 전체도로서, 동 도면에 도시한 바와 같이 본 발명은 크게 비파괴 측정장치(100)에 탑재되며 대상물의 색도 및 휘도 정보를 획득하기 위한 컬러 CCD카메라(10)와, CCD카메라(10)에 의해 획득된 색도 및 휘도 정보를 저장하기 위한 메모리부(20)와, 메모리부(20)에 저장된 대상물(50)의 변형 전 휘도 정보와 변형 후 휘도 정보를 대비하여 측정환경을 최적화하기 위한 휘도 비교부(30) 및, 대상물(50)로부터 획득된 색도 정보와 기 저장된 색도 정보를 비교하여 대상물의 수명을 평가하기 위한 수명평가부(40)로 이루어진다. 1 is a general view of a non-destructive chromaticity luminance measuring apparatus according to the present invention, as shown in the figure, the present invention is largely mounted in the non-destructive measuring apparatus 100 and a color CCD camera for obtaining chromaticity and luminance information of an object. 10, the memory unit 20 for storing the chromaticity and luminance information obtained by the CCD camera 10, the luminance information before deformation and the luminance information after deformation of the object 50 stored in the memory unit 20 In contrast, it comprises a luminance comparator 30 for optimizing the measurement environment, and a life evaluation unit 40 for evaluating the life of the object by comparing the chromaticity information obtained from the object 50 and the stored chromaticity information.

상기의 기술적 구성에서 비파괴 측정장치(100)는 컬러 CCD카메라(10)가 탑재되고, 대상물(50)에 조사된 반사광을 집속하여 이를 전기적 신호로 출력할 수 있으면 족하다. 예컨대, 일례로 도시된 비파괴 측정장치(100)는 전단간섭계로서 레이저 소스, 광 분배기, PZT, 모터, 셔터, 컬러 CCD카메라 및 기타 광학부품으로 구성된다. In the above technical configuration, the non-destructive measuring device 100 is equipped with a color CCD camera 10, it is sufficient to focus the reflected light irradiated to the object 50 and output it as an electrical signal. For example, the non-destructive measuring device 100 shown as an example is composed of a laser source, a light splitter, a PZT, a motor, a shutter, a color CCD camera, and other optical components as a shear interferometer.

이하, 상기의 기술적 구성을 참조하여 본 발명에 따른 비파괴 색도 휘도 측정장치의 작용효과를 상세히 설명한다. Hereinafter, the operational effects of the non-destructive chromaticity luminance measuring apparatus according to the present invention will be described in detail with reference to the above technical configuration.

먼저, 비파괴 측정장치(100)에 탑재된 컬러 CCD카메라(10)를 통하여 대상물로(50)부터의 반사광을 집속하여 대상물의 색도 및 휘도 정보를 획득한다.First, the reflected light from the target path 50 is focused through the color CCD camera 10 mounted in the non-destructive measurement apparatus 100 to obtain chromaticity and luminance information of the target.

획득한 대상물(50)의 색도 및 휘도 정보는 메모리부(20)에 저장된다. 이때, 획득된 색도 및 휘도 정보는 노이즈 등이 필터링 된 뒤 촬영 이미지의 평균값으로 저장될 수 있다. The chromaticity and luminance information of the obtained object 50 is stored in the memory unit 20. In this case, the obtained chromaticity and luminance information may be stored as an average value of the captured image after the noise is filtered.

여기서, 기 저장된 휘도 정보와 현재의 휘도 정보를 비교하여 비파괴 측정환경을 최적화할 수 있다.Here, the non-destructive measurement environment may be optimized by comparing previously stored luminance information with current luminance information.

즉, 비파괴 측정시 대상물(50)의 변형 전과 변형 후의 변화를 살펴보는데 있어서 주위 환경이 변화함에 따라 그 해석이 달라질 수 있으므로, 대상물(50)의 변형 전 휘도(조명 환경)를 알 수 있다면 대상물(50)의 변형 여부를 측정할 시 대상물의 변형 전 휘도와 일치시키거나 적어도 유사하게 유지시킴으로써 휘도 변화에 따른 대상물(50)의 변형 전과 변형 후의 해석이 달라지는 것을 방지할 수 있게 된다. That is, in the non-destructive measurement, since the interpretation of the object 50 may change as the surrounding environment changes before and after the deformation of the object 50, if the brightness (lighting environment) before the deformation of the object 50 is known, the object ( When measuring whether the deformation of 50) is consistent with or at least similar to the brightness before deformation of the object, it is possible to prevent the interpretation before and after the deformation of the object 50 due to the change in brightness.

이에 따라, 메모리부(20)로부터 기 저장된 휘도 정보를 읽어들이고, 컬러 CCD카메라(10)를 통하여 획득된 현재의 휘도 정보를 휘도 비교부(30)를 통해 비교하여, 현재의 조명 조건을 그 전 측정환경과 일치시키거나 적어도 유사하게 가져감으로써 측정환경을 최적화할 수 있게 된다. Accordingly, the pre-stored luminance information is read from the memory unit 20, the current luminance information obtained through the color CCD camera 10 is compared through the luminance comparison unit 30, and the current illumination condition is previously determined. The measurement environment can be optimized by matching or at least bringing it to a measurement environment.

한편, 컬러 CCD카메라(10)를 통하여 대상물(50)의 색도 정보가 메모리부(20)에 저장된 경우, 시간이 경과함에 따라 대상물의 변화하는 색도 정보를 유추하여 대상물(50)의 수명을 측정할 수 있게 된다. Meanwhile, when the chromaticity information of the object 50 is stored in the memory unit 20 through the color CCD camera 10, the lifetime of the object 50 may be measured by inferring chromaticity information of the object that changes over time. It becomes possible.

즉, 메모리부(20)에 기 저장된 대상물의 수명에 따른 색도 정보를 읽어들이고, 수명평가부(40)를 통해 대상물(50)로부터 획득된 색도 정보와 기 저장된 색도 정보를 비교하여 색도의 일치 정도에 따라 대상물(50)의 수명을 평가한다. That is, the chromaticity information according to the lifespan of the object previously stored in the memory unit 20 is read, and the chromaticity matching degree is compared by comparing the chromaticity information obtained from the object 50 through the lifespan evaluation unit 40 and the previously stored chromaticity information. According to the life of the object 50 is evaluated.

이에 따라, 비파괴 측정장치(100)에 기본적으로 탑재된 CCD카메라(10)를 통하여 색도 및 휘도 정보를 획득하고, 이를 활용하여 측정환경을 최적화하는 한편 대상물(50)의 수명을 간접적으로 측정할 수 있게 된다. Accordingly, chromaticity and luminance information can be obtained through the CCD camera 10 mounted on the non-destructive measuring device 100, and the measurement environment can be optimized by indirectly measuring the lifetime of the target object 50. Will be.

이상에서 상세히 설명한 바와 같이, 본 발명에 따르면 비파괴 측정장치, 예컨대 전단간섭계에 탑재된 CCD카메라를 통하여 휘도 및 색도 정보를 획득하고, 이를 통하여 측정환경의 최적화 및 대상물의 수명평가를 함으로써 종래 변형의 기울기만을 측정하던 전단간섭계의 활용을 극대화시키는 한편 장치의 효용성을 높일 수 있다는 효과가 있다.As described in detail above, according to the present invention, brightness and chromaticity information are acquired through a CCD camera mounted on a non-destructive measuring device, such as a shear interferometer, and the slope of the conventional deformation is optimized by optimizing the measurement environment and evaluating the life of the object. It maximizes the utilization of shear interferometer, which measures the bay, and increases the utility of the device.

Claims (1)

컬러 CCD카메라가 구비된 비파괴 측정장치에 있어서, In the non-destructive measuring device equipped with a color CCD camera, 대상물의 색도 및 휘도 정보를 획득하기 위한 컬러 CCD카메라와, A color CCD camera for acquiring chromaticity and luminance information of the object; 상기 CCD카메라에 의해 획득된 색도 및 휘도 정보를 저장하기 위한 메모리부와, A memory unit for storing chromaticity and luminance information obtained by the CCD camera; 상기 메모리부에 저장된 대상물의 변형 전 휘도 정보와 변형 후 휘도 정보를 대비하여 측정환경을 최적화하기 위한 휘도 비교부 및, A brightness comparator for optimizing a measurement environment by comparing brightness information before deformation and brightness information after deformation stored in the memory unit; 대상물로부터 획득된 색도 정보와 상기 메모리부에 기 저장된 색도 정보를 비교하여 대상물의 수명을 평가하기 위한 수명평가부로 구성된 것을 특징으로 하는 비파괴 색도 휘도 측정장치. Non-destructive chromaticity luminance measuring apparatus comprising a life evaluation unit for evaluating the life of the object by comparing the chromaticity information obtained from the object and the chromaticity information previously stored in the memory unit.
KR1020070002740A 2007-01-10 2007-01-10 Non-destructive measurement apparatus of chromaticity and brightness Ceased KR20080065731A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111951737A (en) * 2019-05-16 2020-11-17 硅工厂股份有限公司 Display driving device and driving method for adjusting image brightness based on ambient illumination

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111951737A (en) * 2019-05-16 2020-11-17 硅工厂股份有限公司 Display driving device and driving method for adjusting image brightness based on ambient illumination
CN111951737B (en) * 2019-05-16 2024-04-26 硅工厂股份有限公司 Display driving device and driving method for adjusting image brightness based on ambient illuminance

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