RU2547163C1 - Method to measure parameters and characteristics of radiation sources - Google Patents

Abstract

FIELD: measurement equipment.

SUBSTANCE: during realisation of the method, a receiver of optical radiation is placed with the possibility of movement along three coordinates in the radiated zone of the investigated source of radiation. They determine maximum value of source radiation capacity in the analysis of the receiver. Prior to start of measurements they set parameters of measurements of the investigated source, and on the basis of the determined maximum capacity value they set the time of receiver integration. Then they perform measurement by three coordinates of radiation force value, measurement of spectral distribution of energy and calculation of spectral, energy and colour parameters of the source. The received parameters are compared to reference ones. Measurements are carried out in continuous mode with output of measurement and analysis results to a video control device. A fibre-optic spectrometer is used as a receiver of optical radiation.

EFFECT: increased functionality and universality of the method with simultaneous reduction of error and time of measurement, processing and analysis of produced results.

3 dwg, 3 tbl

Description

The present invention relates to measuring technique, and in particular to technologies for determining the spectral, energy parameters and characteristics of any radiation sources of the ultraviolet, visible and infrared ranges, as well as color parameters and characteristics of radiation sources of the visible range, and can be used to simultaneously analyze and control all key parameters and characteristics of modern radiation sources both at the production stage (quality control) and in the process of operation.

It is known that today, developments in the field of lighting technology occupy one of the leading positions in the field of innovation. The latest lighting systems, in particular LED ones, are relevant and in demand due to their low power consumption and long service life, which distinguishes them from traditional light sources. It is worth noting that the great interest in LEDs and emitting diodes (IDs) in general is also due to the wide possibilities for creating specialized illumination devices based on them (with the required spectrum, intensity, radiation pattern, radiation color), including controlled ones. However, the creation of high-quality and functional multi-element lighting devices is impossible without careful monitoring of their parameters and characteristics.

At the moment, there are many different methods for measuring the parameters and characteristics of radiation sources.

Known patent application "Light intensity distribution testing device for light-emitting diode" (CN 202454141 U, IPC G09B 23/22, G01J 1/00, published 08.02.2012), from the description of this diagnostic device for measuring the distribution of light-emitting light emitting A method is known to diodes in that the analysis of parameters and characteristics of radiation sources is carried out on the basis of measurements made with a light meter. The light meter is mounted on an optical bench coaxially to a radiation source, which is mounted on a mobile device. A goniometer is used as a mobile device. After each step of the mobile device, within the specified range of rotation angles, the spatial distribution of the light intensity of the LEDs and devices based on them is measured, then the specialists analyze the obtained data.

Known patent application "Light field measuring device of a light emitting element" (TW 201040510 A, IPC G01J 1/24, G01J 1/28, publ. 16.11.2010), from the description of which the method is known, which consists in the central axis is symmetrically mounted and the set of sensing elements is evenly distributed in the radial direction. The spatial distribution of the light intensity of the LEDs is measured based on the control of the distance between the LED source under study and the sensitive element, while simultaneously changing the angle and distance between the sensitive elements. Then experts analyze the data.

However, these methods have limited functionality, because allow measuring only one characteristic of the radiation source (distribution of light intensity) in one plane and are intended for measuring only light-emitting diodes. In addition, the methods have a low degree of automation, since mechanical rotary and moving parts of devices are used for their implementation.

A patent is known for a utility model “A device for measuring the spatial distribution of the radiation force of solid-state radiation sources” (RU 114151 U1, IPC G01J 1/00, publ. 10.03.2012). From the description of this device, a known method for analyzing the parameters and characteristics of radiation sources is that specialists analyze the results of measurements of the spatial distribution of the radiation force of solid-state radiation sources (laser and LED emitters), which are carried out by using a photometer (to determine the light intensity from sources in the visible range radiation) or a radiometer (for determining the radiation intensity from sources of UV and IR radiation ranges), thermal stabilization systems nation (to determine the temperature). At the same time, the values of current and voltage of solid-state emitters are recorded using a computer.

However, this method has disadvantages, namely: limited use, since using this method you can analyze only the energy parameters and characteristics of only solid-state radiation sources; limited functionality, since measurements are carried out in only one plane; low accuracy of measurements, since their implementation requires a large number of calibrated end measures and squares; long preparation time for measurements, as Before starting measurements, it is necessary to adjust the position of the center of the LED and the center of the photosensitive plane of the photometer.

The closest in technical essence to the claimed method is a method for analyzing the parameters and characteristics of radiation sources, known from the description of the measuring laboratory for a comprehensive study of the characteristics of LEDs, manufactured by ATV Outdoor Systems [Sergey Nikiforov. Measuring laboratory for a comprehensive study of the characteristics of LEDs used in information display systems // "Components and Technologies", 2007, No. 7].

This method consists in the fact that the measured LED radiation source is fixed on a movable device (goniometer) and positioned relative to the axes of the measuring system (a set of photometer, spectrophotometer and photocolorimeter). Using a voltmeter, the necessary power supply mode of the radiation source is set. Then determine the maximum value of the radiation power of the radiation source in the analysis area of the optical radiation receiver, while moving the radiation source using a movable device (goniometer). Then measure the magnitude of the radiation force using a photometer and the spectral distribution of radiation of the radiation source using a spectrophotometer, while moving the radiation source using a mobile device in two coordinates. Using a Minolta CS 100A photocolorimeter, the brightness and color coordinates of the radiation source are measured. The data obtained are transmitted to a personal computer, where the spectral, energy and color characteristics of the radiation source are calculated using the MathCAD and Excel packages and diagrams of the spatial distribution of radiation are built.

This known method of measuring the parameters and characteristics of radiation sources is selected as a prototype, since it has the largest number of essential features that match the essential features of the claimed invention.

However, the prototype has significant disadvantages, namely:

- long measurement time, as it is difficult to position the investigated LED radiation source relative to the optical radiation receiver due to the need to ensure that the measurements are linked to one point of the measured space;

- high measurement error due to the use of the inefficient method of positioning the optical radiation receiver (photometer, spectrophotometer and photocolorimeter relative to each other) and the radiation source, as well as due to the complexity of carrying out a comprehensive analysis of the obtained results (since the procedure for comparing the obtained measurement results with reference (i.e., specified by the manufacturer or calculated for a given type of radiation source) parameter values for the studied radiation source are not provided);

- low versatility associated with the measurement of parameters and characteristics of only one type of radiation sources (only LED products), as well as with the measurement of radiation parameters in only one plane and only with one power mode;

- limited functionality and insufficient automation of the method associated with the need for additional calculations and construction of charts or graphs in separate software packages after measurements.

The objective of the present invention is to provide a new method for analyzing the parameters and characteristics of radiation sources, which allows to achieve the following technical result, namely to increase functionality and versatility while reducing the error and time of measurement, processing and analysis of the results.

The problem is solved due to the fact that before the measurements are set, the measurement parameters of the investigated radiation source are set, then, based on a certain maximum value of the radiation power of the radiation source, the integration time of the optical radiation receiver is set. In this case, the distribution of the radiation power of the radiation source along the third coordinate is additionally measured. Moreover, the optical radiation receiver is fixed with the possibility of its movement in three coordinates, and the measurements are carried out in a continuous mode, with the simultaneous output of the measurement results to a video monitoring device. Next, analyze the parameters and characteristics of the investigated radiation source by comparing the obtained measurement results with the reference for the investigated radiation source, and the analysis results are output to a video monitoring device. At the same time, a fiber optic spectrometer is used as an optical radiation receiver.

The essence of the claimed invention lies in the fact that in the known method of measuring parameters and characteristics of radiation sources, including the location of the optical radiation receiver in the illuminated / irradiated area of the investigated radiation source, determining the maximum value of the radiation power of the radiation source in the analysis zone of the optical radiation receiver, measuring the magnitude of the radiation radiation source in two coordinates, measuring the spectral distribution of the radiation energy of the radiation source, calculation with the spectral, energy and color (for radiation sources of the visible range of the spectrum) parameters and characteristics of the radiation source, according to the present invention, before measurement, the measurement parameters of the radiation source under study are set, then, based on the determined maximum value of the radiation power of the radiation source, the integration time of the optical radiation receiver is adjusted, additionally measure the magnitude of the radiation power of the radiation source in the third coordinate, and optical radiation is fixed with the possibility of its movement in three coordinates, and the measurements are carried out in a continuous mode, with the simultaneous output of the measurement results to a video monitoring device, then the parameters and characteristics of the radiation source under study are analyzed by comparing the obtained measurement results with the reference ones for the radiation source under study, and the results analysis output to a video monitoring device, while fiber optic is used as a receiver of optical radiation spectrometer.

Thus, the claimed method of measuring the parameters and characteristics of radiation sources with the totality of its essential features allows to increase functionality and versatility while reducing the error and measurement time both by simultaneously measuring the color, energy and spectral parameters of the radiation by using an optical radiation spectrometer as a receiver, and by measuring the radiation parameters of any type of radiation source (for example, laser, with LED, lamp, composite radiation source of various shapes, etc.) in three XYZ coordinates. And also the inventive method allows to increase functionality while reducing the error and measurement time by analyzing the parameters and characteristics of the investigated radiation source by comparing the obtained measurement results with the reference ones (i.e., specified by the manufacturer or calculated for this type of radiation source).

In addition, the inventive method allows to increase the automation of measurements due to the ability to set the measurement parameters of the investigated radiation source, such as the size of the investigated area and the sampling step of the measurements, as well as by tuning the optical radiation receiver by changing the integration time of the spectrometer.

The applicant conducted a patent information search on this topic, as a result of which the claimed combination of essential features was not identified. Therefore, the present invention can be recognized as new.

The compliance of this invention with the patentability criterion of "inventive step" is justified by the following.

This invention for a specialist does not follow logically from the prior art. So, for example, all known methods of analyzing the parameters and characteristics of radiation sources allow you to measure only some parameters and characteristics of only one type of radiation sources, such as LEDs, laser sources, etc., and have a low degree of automation.

So, for example, methods for measuring light intensity are known from the description of the following patents: Diagnostic device for measuring the light intensity distribution of light-emitting diodes [patent "Light intensity distribution testing device for light-emitting diode", CN 202454141 U, IPC G09B 23/22, G01J 1 / 00 publ. 02/08/2012] or Device for measuring the spatial distribution of the radiation force of solid-state radiation sources [utility model patent RU 114151 U1, IPC G01J 1/00, publication date: March 10, 2012]. Known, for example, are methods of measuring the parameters and characteristics of laser radiation sources from the description of the following documents: A stand for measuring the spatial characteristics of a laser beam [F.V. Potemkin, P.M. Mikheev. Measurement of the spatial characteristics of a laser beam. // Proceedings of the conference "Measurements and Automation 2006", p.68-73] or Device for spectral measurements of laser measurement [patent for invention US 6,320,663 B1, IPC G01B 9/02, publication date: February 25, 2000]. Known, for example, are methods of measuring color parameters and spectral characteristics of radiation sources: Method and apparatus for measuring the spectral composition of an LED light source [US Patent No. 6,448,550 B1, IPC H01J 5/16, publication date: April 27, 2000] or Method for determining the spectral composition optical radiation [patent for the invention RU 2008629 C1, IPC G01J 3/12, publication date September 27, 1997].

All these known methods have a number of common disadvantages:

- limited functionality due to the measurement of only one or two radiation parameters;

- low universality, due to both the measurement of parameters and characteristics of only one type of radiation sources (for example, only LED products or only laser sources), and the measurement of radiation parameters in only one plane, which leads to complex methods for evaluating or analyzing a radiation source;

- low automation, due, inter alia, to the need to perform additional calculations after measurements in separate software packages, which, moreover, leads to an increase in measurement time.

Thus, none of the known methods allows fully automatically and with a small error to carry out for any type of radiation source simultaneous measurements of the spatial distribution of illumination, color (for radiation sources of the visible range) and spectral characteristics of radiation in three-dimensional space, as well as their power parameters.

In the claimed invention, the situation is different. In it, functionality and versatility is achieved due to the location of the optical radiation receiver in the illuminated / irradiated zone of the investigated radiation source, while the optical radiation receiver is fixed with the possibility of its movement in three XYZ coordinates. In addition, the universality of the method is also achieved by setting measurement parameters of the radiation source under study (the size of the region under study, the sampling step of the measurements), determining the maximum radiation power of the source, and then, on the basis of the determined maximum radiation power of the source, the receiver integration time is set optical radiation. In addition, measurements can be carried out under different power conditions of the studied radiation sources.

Due to the fact that a fiber-optic spectrometer is used as an optical radiation receiver, the functionality and automation of the measurement process are increased (i.e., processing and analysis of the results are reduced, and the measurement time is also reduced). Using a fiber-optic spectrometer allows you to simultaneously measure the magnitude of the radiation force (for point radiation sources) or brightness (for extended radiation sources) in three coordinates, the spectral distribution of the radiation energy of the radiation source, as well as simultaneously calculate the spectral, energy and color (for visible radiation sources) parameters and characteristics of the radiation source.

After the measurements and calculation are completed, the parameters and characteristics of the radiation source under study are analyzed, the analysis is performed by comparing the obtained measurement results with the reference ones (i.e., specified by the manufacturer or calculated for this type of radiation source) for the radiation source under study, this action also ensures the universality of this method .

In addition, the automation of the method is also achieved by the fact that the measurements are carried out in a continuous mode, with the simultaneous output of the measurement results to a video monitoring device.

Thus, the present invention is aimed at improving the functionality and versatility of the method of measuring parameters and characteristics of radiation sources while reducing the error and time of measurement, processing and analysis of the results.

The essence of the claimed invention and the possibility of its practical implementation is illustrated by the description and drawings below.

Figure 1 is a diagram of an implementation of a method for measuring parameters and characteristics of radiation sources.

Figure 2 - diagram of a device that implements a method of measuring parameters and characteristics of radiation sources, where

1 - mounting device of the investigated radiation source,

2 - receiver of optical radiation,

3 - input window

4 - device for mounting the receiver of optical radiation,

5 - mobile device

6 - control unit of the mobile device,

7 - control unit of the investigated radiation source,

8 - control unit and information processing.

Figure 3 - illustration for example: measurement results: a) the distribution of illumination; b) spectral characteristic of radiation; c) color parameters of radiation.

The method of measuring the parameters and characteristics of radiation sources (Fig.1, 2) is as follows.

The optical radiation receiver is located in the illuminated / irradiated area of the investigated radiation source. Before starting measurements, the operator sets the measurement parameters of the radiation source under study (the size of the studied region xyz, sampling steps n, m, k), the noise component of the spectral distribution of the radiation power is calculated by the formula [Buckingham M. Noise in electronic devices and systems. M .: Mir, 1986, pp. 37-41]:

P (λ) = P (λ) _II- P (λ) _noise ,

where P (λ) _noise is the spectral distribution of the radiation power without using a radiation source; P (λ) _II - the spectral distribution of the radiation power of the investigated radiation source.

Further measurements are carried out in two stages. At the first stage, the maximum value of the radiation power of the radiation source in the analysis zone of the optical radiation detector is determined (using the optical radiation receiver and a mobile device, the studied region xyz is scanned, the scan result is a matrix including the radiation power P (XYZ), then at the program level from the whole this matrix is the largest value of P _max (XYZ)).

Then, based on the determined maximum value of the radiation power of the radiation source, the operator adjusts the integration time t of the optical radiation receiver.

At the second stage, the magnitude of the radiation power of the radiation source is measured in three coordinates. Based on the obtained values, a 3D distribution of the illuminance / irradiance of the radiation source is constructed. In this case, the results of measuring the distribution of the radiation force are approximated, for example, as follows [S. Porshnev MATLAB 7. Fundamentals of work and programming. Textbook - M .: Binom-Press LLC, 2011, pp. 209-229]:

where meshgrid (x, y) is a function that converts the region of the indicated vectors x and y into arrays X and Y; n and m are the sampling step set by the operator, x and y are the size of the studied area; interp2 (X, Y, Z, X1, Y1) is a function that returns the matrix z containing the elements corresponding to the elements X1 and Y1, and is determined by interpolation in the two-dimensional function given by the matrices X, Y and Z). The spectral distribution of the radiation energy of the radiation source is measured and the spectral, energy and color (for radiation sources of the visible spectrum range) parameters and characteristics of the radiation source are calculated. Calculation of chromaticity coordinates is carried out, for example, by the following formula [Judd D., Vyshecki G. Color in science and technology. M .: Publishing house "MIR", 1978, pp. 173-176]:

,

,

, $$Y=k_c{\displaystyle \underset{0}{\overset{\infty }{\int }}P(\lambda )\overline{y}(\lambda )d\lambda =100}$$

и $$Z=k_c{\displaystyle \underset{0}{\overset{\infty }{\int }}P(\lambda )\overline{z}(\lambda )d\lambda }$$

- координаты цвета в цветовом пространстве; $$\overline{x}(\lambda )$$

, $$\overline{y}(\lambda )$$

и $$\overline{z}(\lambda )$$

- кривые сложения, $$k_c=\frac{100}{{\displaystyle \underset{0}{\overset{\infty }{\int }}{P}_{\lambda }(\lambda )\overline{y}(\lambda )d\lambda }}$$

множитель.Where $$X=k_c{\displaystyle \underset{0}{\overset{\infty }{\int }}P(\lambda )\overline{x}(\lambda )d\lambda }$$

, $$Y=k_c{\displaystyle \underset{0}{\overset{\infty }{\int }}P(\lambda )\overline{y}(\lambda )d\lambda =\mathrm{one\; hundred}}$$

and $$Z=k_c{\displaystyle \underset{0}{\overset{\infty }{\int }}P(\lambda )\overline{z}(\lambda )d\lambda }$$

- color coordinates in the color space; $$\overline{x}(\lambda )$$

, $$\overline{y}(\lambda )$$

and $$\overline{z}(\lambda )$$

- addition curves, $$k_c=\frac{\mathrm{one\; hundred}}{{\displaystyle \underset{0}{\overset{\infty }{\int }}{P}_{\lambda }(\lambda )\overline{y}(\lambda )d\lambda }}$$

factor.

Moreover, the measurements are carried out in a continuous mode, with the simultaneous output of the measurement results to a video monitoring device.

Next, analyze the parameters and characteristics of the investigated radiation source by comparing the obtained measurement results with the reference (i.e., set by the manufacturer or calculated for this type of radiation source) for the studied radiation source.

The analysis of color coordinates in linear space RGB (R ', G', B ') is performed, for example, by the ratio [Krivosheev MI, Kustarev A.K. Color measurements. M .: Energoatomizdat, 1990, p. 42-50]:

,

,

where [M] ^-1 is the inverse (inverse) translation matrix of M; R = R ' ^{1 / γ} G = G' ^{1 / γ} B = B ' ^{1 / γ} - color coordinates; γ is the factor defined for most types of RGB color spaces; XYZ - color coordinates.

The analysis results are output to a video monitoring device. At the same time, a fiber-optic spectrometer is used as a receiver of optical radiation, previously fixing it with the possibility of its movement in three coordinates.

The proposed method can be implemented, for example, using a device for monitoring radiation sources (Figure 2), which contains a device 1 for mounting the investigated radiation source (not shown), an optical radiation receiver 2 having an input window 3, and an optical receiver 2 mounting device 4 radiation, mobile device 5, control unit 6 of the mobile device, control unit 7 of the investigated radiation source, control unit 8 and information processing, power unit (not shown). The receiver 2 of the optical radiation is connected to the control unit 8 and information processing. The input window 3 of the receiver 2 of optical radiation is fixed in the device 4 mounting the receiver 2 of the optical radiation. The device 1 for fixing the studied source of radiation (not shown) and the device 4 for mounting the receiver 2 of optical radiation are mounted, for example, on an optical bench (not shown) so that the studied source of radiation (not shown) is located in the analysis zone of the receiver 2 of optical radiation. The device 4 for mounting the receiver 2 of the optical radiation is mounted on an optical bench (not shown) by fixing it to a movable device 5, also mounted on an optical bench (not shown) and connected to the control unit 6 of the mobile device 5, which is connected with the control unit 8 and information processing. The control unit 6 of the mobile device 5 is configured to provide control of the operating parameters of the mobile device 5. The control unit 7 of the investigated radiation source (not shown) is connected to the control and information processing unit 8 and to the power supply unit (not shown).

The movable device 5 is made three-coordinate. An optical fiber spectrometer is used as an optical radiation receiver 2, the input window 3 of which is formed using an optical fiber cable. The information management and processing unit 8 is equipped with an information output device (not shown), for example, a monitor, and is configured to provide control of all elements of the inventive device. Also, this unit provides a presentation of the results of the spatial distribution of radiation (three-dimensional models and two-dimensional graphs of the distribution of illumination / irradiation at given space coordinates), spectral characteristics, color coordinates, and builds a color map (for visible radiation sources) from radiation sources (not shown).

The inventive method is implemented on this device as follows.

The investigated radiation source (not shown) is fixed in the mount device 1 on an optical bench (not shown). Opposite it, at a distance that is selected depending on the type of source and its purpose, a movable three-coordinate device 5 is mounted on an optical bench (not shown), and a device 4 for fixing the receiver 2 of optical radiation is fixed on it. The input window 3 (fiber optic cable) of the receiver 2 of the optical radiation (spectrometer) is fixed in the device 4 mounting the receiver 2 of the optical radiation. The radiation from the studied source (not shown) of radiation is sent to the input window 3. This radiation, passing through the transmission channel of the radiation (fiber optic cable), is fed to the receiver 2 of optical radiation (spectrometer). Using a mobile device 5 move the input window 3 of the receiver 2 of optical radiation.

Scanning of the xyz study area set by the operator is carried out in three cycles. In the first cycle, using the mobile device 5, the initial XYZ coordinates are set, the spectral and energy parameters of the radiation of the studied source (not shown) are recorded / measured by the radiation transmission channel (fiber optic cable). Then, changing the values of the X coordinate (using the set sampling step n), measure the spectral and energy parameters of the radiation of the studied radiation source (not shown) until the X coordinate takes a value equal to the x value (set by the operator). Then comes the second cycle in which the value of the Y coordinate changes and the first measurement cycle is repeated. The second cycle will continue until the Y coordinate has a value equal to the y value (set by the operator). After the second cycle, the third occurs, in which the value of the Z coordinate changes and the second measurement cycle is repeated. The third cycle will also continue until the Z coordinate assumes a value equal to the z value (set by the operator).

Using the receiver 2 of optical radiation, the values of the distribution of illumination / irradiation from the studied source (not shown) of radiation are measured over the entire area of space illuminated by this source. Using block 8 processing and control, the processing of the measured data coming from the receiver 2 of optical radiation, this allows you to simultaneously determine the spectral and color (for radiation sources of the visible range) source parameters (not shown) of radiation and to bind the obtained values of the source parameters (in the drawing not shown) radiation to spatial coordinates. The measurement results are recorded, stored and processed in the processing and control unit 8, and images of the illumination distribution over a flat surface, the illumination distribution in Cartesian coordinates, the spectrum and the color map (for visible light sources), 3D illumination / irradiation distribution of the studied source (not shown ) radiation arrives at the device (not shown) output information.

Example

As an example, a method for measuring the parameters and characteristics of an RGB light source with a honeycomb structure containing 28 LED red and green light sources, as well as 25 blue LED light sources, is presented. In this example, an OceanOptics USBQE65Pro fiber-optic spectrometer was used as an optical radiation receiver, while the receiver was located in the illuminated zone of the RGB source under study (at a distance of 140 mm from the source under study). Before starting the measurements, the measurement parameters were set, namely, the size of the measured space is 200 × 200 mm ² , the distance from the source to the receiver is 140-200 mm, the sampling rate is 20 mm.

During the first measurement cycle, the maximum value of the radiation power of the investigated radiation source was automatically found. Based on a certain maximum value of the radiation power, the integration time of the optical radiation receiver was adjusted; the integration time was 35 ms. During the second cycle (taking into account the found integration time), the radiation strength and the spectral distribution of the radiation energy of the source were measured, the results are presented in Table 1 and 2 and in Fig. 3.

Table 1 Energy Parameters of RG Source Space coordinates, mm Brightness, Rel. units X Y Z 0 0 140 0.283 twenty 0 140 0.201 40 0 140 0.242 60 0 140 0.278 80 0 140 0.294 one hundred 0 140 0.217 120 0 140 0.249 140 0 140 0.315 160 0 140 0.318 180 0 140 0.229 200 0 140 0.417 0 0 140 0.354 twenty 0 140 0.286 40 0 140 0.239 60 0 140 0.275 80 0 140 0.297 one hundred 0 140 0.219 120 0 140 0.215 140 0 140 0.288 160 0 140 0.245 180 0 140 0.289 200 10 140 0.265 0 10 140 0.291 ... ... ... ... 120 200 200 0.361 140 200 200 0.34 160 200 200 0.347 180 200 200 0.347 200 200 200 0.345

table 2 Spectral parameters of the RGE source Spectrum values at X = Y = 0 mm and Z = 140 mm Wavelength nm Brightness, Rel. units 380.15 0,033 380.41 0,034 380.66 0,033 380.92 0,034 381.17 0,034 381.43 0,033 381.68 0,034 381.94 0,034 382.2 0,034 ... ... 524.65 0.958 524.9 0.972 525.14 one 525.39 0.973 525.64 0.96 ... ... 776.09 0,031 776.31 0,033 776.54 0,031 776.77 0,035 776.99 0,031 777.22 0,033 777.45 0,031 777.68 0,035 777.9 0,032 778.13 0,035 778.36 0,033 778.58 0,031 778.81 0,032 779.04 0,034 779.27 0,033 779.49 0,032 779.72 0,033 779.95 0,032 780.17 0,033

According to the results obtained (Table 1, 2 and Figure 3 a, b), we can conclude that the RGB light source under study does not illuminate a uniformly indicated region, the spectral characteristic of this light source has three maxima, each maximum corresponds to LEDs of three colors. The first maximum is in the blue region (465 nm), the second is in the green region (525 nm), and the third is in the yellow-red region (640 nm).

Further, based on the obtained values, calculation and analysis (by comparing the obtained measurement results with the reference) of color parameters (formula 1 and 2) were performed. And also were built energy, spectral and color characteristics of the investigated light source. The results were displayed on a video monitoring device.

Calculation of the xyY color space is performed according to the above formula.

Table 3 RGB color options Space coordinates, mm Color coordinates Color Map Values X Y Z x y R G AT 0 0 140 0.360 0.395 157 152 148 twenty 0 140 0.270 0.374 153 159 131 40 0 140 0.380 0.454 154 168 129 60 0 140 0.287 0.439 94 175 105 80 0 140 0.338 0.337 157 152 148 one hundred 0 140 0.337 0.336 156 152 148 120 0 140 0.337 0.336 156 152 149 140 0 140 0.337 0.337 156 153 148 160 0 140 0.338 0.337 156 152 148 180 0 140 0.338 0.337 156 152 147 200 0 140 0.337 0.337 156 152 148 0 0 140 0.338 0.337 156 152 148 twenty 0 140 0.337 0.338 155 153 147 40 0 140 0.337 0.239 154 153 147 60 0 140 0.337 0.339 154 153 146 80 0 140 0.436 0.339 153 153 147 one hundred 0 140 0.334 0.343 148 154 144 120 0 140 0.335 0.343 149 154 144 140 0 140 0.336 0.340 152 153 146 160 0 140 0.337 0.339 154 153 147 180 0 140 0.437 0.337 96 163 128 200 10 140 0.238 0.337 156 152 147 0 10 140 0.238 0.337 156 152 148 ... ... ... ... ... ... ... ... 60 200 200 0.316 0.359 148 152 145 80 200 200 0.324 0.352 148 150 144 one hundred 200 200 0.312 0.291 145 154 144 120 200 200 0.356 0,303 152 154 144 140 200 200 0.401 0.359 124 159 137 160 200 200 0.406 0.337 116 163 128 180 200 200 0.298 0.395 156 152 147 200 200 200 0.298 0.337 156 152 148

According to the results obtained (Table 3 and Figure 3, c), it can be concluded that the color of the investigated RGB light source is blue-green in the 60 × 60 mm region, this region is located at a distance of 140 mm from the optical radiation receiver. Outside this area, the brightness becomes less and the color of the investigated RGB light source (illumination) acquires a yellowish-red hue.

Using the proposed method, you can:

- measure and evaluate the parameters and characteristics of any types of optical radiation sources (laser, LED, tube, composite radiation sources of various shapes) at any point in the field of their radiation;

- simultaneously determine the color parameters of light sources in the wavelength range from 380 nm to 780 nm and the spectral characteristics of radiation sources in the optical wavelength range, as well as evaluate the uniformity of illumination / irradiation of the analysis zone with a size of, for example, 200 × 200 mm ² (the size of the analysis zone is determined type of the investigated radiation source), radiation sources;

- visualize the obtained parameters and characteristics of the studied radiation sources in an accessible form and in real time.

Thus, the technical result of the proposed method is achieved, namely, to increase functionality and versatility while reducing the error and time of measurement, processing and analysis of the results.

Claims (1)

A method for measuring the parameters and characteristics of radiation sources, including the location of the optical radiation receiver in the illuminated / irradiated area of the investigated radiation source, determining the maximum value of the radiation power of the radiation source in the analysis zone of the optical radiation receiver, measuring the radiation intensity of the radiation source in two coordinates, measuring the spectral distribution of energy radiation source radiation, calculation of spectral, energy and color (for radiation sources visible range of the spectrum) of the parameters and characteristics of the radiation source, characterized in that before starting the measurements, the measurement parameters of the radiation source under study are set, then, based on the determined maximum value of the radiation power of the radiation source, the integration time of the optical radiation receiver is adjusted, and the radiation source radiation strength is additionally measured by the third coordinate, and the optical radiation receiver is fixed with the possibility of its movement in three to the ordinates, and the measurements are carried out in a continuous mode, with the simultaneous output of the measurement results to a video monitoring device, then analyze the parameters and characteristics of the investigated radiation source by comparing the obtained measurement results with the reference for the studied radiation source, and the analysis results are output to the video monitoring device, while as The optical radiation receiver uses a fiber optic spectrometer.

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