operating manual iliad for Windows & Mac OS X software application rc81

Transcription

1 operating manual iliad software application rc81 for Windows & Mac OS X

2 Contents 1. About Admesy Iliad software application General introduction Legal notice Installation Starting Iliad Introduction Function and device tree Select and configure device Select modules Measurement example screen Function tree Functions Hera, Rhea, Cronus, Asteria Other functions Device tree Modules Introduction Chromaticity Datalogging Flicker Flicker value Intensity chart Intensity value Optics and units Temperature Sample spectrums Spectrum PAR values Timer Start-up settings Steropes light source control Calibration Spectrometer calibration User spectrum calibration Spectrometer matrix calibration XYZ sensor calibration Colorimeter calibration Light meter calibration Firmware update Introduction Firmware update example (Asteria) Flicker measurement example (Asteria) Delay function Settings (Il)luminance measurement example (Asteria) Settings Reflective measurement example (Hera) Transmissive measurement example (Hera) Pass/fail module

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4 1. About 1.1. Admesy Iliad software application The material in this manual is subject to change. No rights can be derived from the content of this manual. The content of this manual is valid for Iliad version higher or equal than for Windows and Mac OS X. This manual shows examples in Windows. Iliad for Mac OS X has the same layout and menu structure, steps and settings can be changed similar to the Windows version General introduction The Admesy Iliad application is a generic application for almost all Admesy devices. Currently supported devices: Rhea series Hera series Cronus series MSE series Hyperion series Vates series Asteria series Steropes series 1.3. Legal notice The Iliad application is only to be used with Admesy Instruments. No parts may be copied and used in other applications. 4

5 2. Installation The Admesy Iliad software application is distributed via the Admesy website and available for both Windows and OSX. as a ZIP file or provided with your measurement device on USB stick. After unpacking the ZIP file, a readme file guides you through the setup of the VISA drivers and Iliad software. IMPORTANT: Before installation, it is necessary to install the NI-VISA Runtime Engine. Recent versions of Iliad have been tested with NI-VISA 5.4. Your computer may prompt you to reboot your system after the installation. Please save all your documents and close all other applications before starting the installation

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7 3. Starting Iliad 3.1. Introduction Iliad supports connecting multiple devices at one time. Devices can be added or removed at any time. When starting the software, the user interface will appear different depending on which kind of instrument has been attached. When one or more devices are connected over USB the software shows devices on the left of the screen. 7

8 3.2. Function and device tree On the left two separate areas can be seen, one is a tree device with a function selection, and we call this the function tree. Here you can choose which basic function the device should perform. These functions describe the measure capability of a device. For example; if you have plugged in a spectrometer you can choose measure spectrum or sample spectrum. If you have an Asteria you can choose the sample intensity function with which you can measure flicker. The lower part is the device selection area where you can change settings: This is called the device tree. Here you can change settings of the device like averaging, integration time, autorange, etc. When you select a device it automatically displays all its settings. 8

9 Select and configure device In order to start you measurement you need to select a device in the device tree and you need to select a function. We already select a basic function by default for the first function: The Cronus spectrometer for example, has a default function of measuring spectrum. See example on the left. Other functions such as Sample intensity can be added. In total, up to three functions can be carried out per device at a time.

10 3.4. Select modules Next step is to get the measurement results on the screen. you can do this by selecting modules and choose the appropriate module you want to display on the screen. The appropriate graph pops up and the only thing left is to push the single run button or the continuous-run button. An example screenshot of a measurement example with a Hera-01 is shown on the next page. When starting measurements, please carry out one single measurement to determine if all settings are correct before using the continuous-run mode. Continuous run button Single run button 10

11 3.5. Measurement example screen 11

12 3.6. Function tree A function describes the measurement capability of a device and depends on the device. The function tree allows a maximum of three functions at a time. When the application is running, the measurements are carried out in the sequence of the functions. First function 1, then function 2 and at last function 3. Be aware that not all functions can be used together. First select on a function in the function tree (Function1 / Function2 / Function3) as shown on the top left figure. Then select a function right above the function tree. Depending on the device capabilities you can select different capabilities. The example on the left shows the functions of a Cronus, combined spectrometer and colorimeter. The functions which you can choose from are: Disabled: no function is used Measure intensity: intensity value is measured Measure colour: colour and intensity are measured Measure spectrum: spectral data is obtained Measure reflection: reflection of samples can be measured (in Y, XYZ or spectral depending on device) Measure transmission: transmission of samples can be measured (in Y, XYZ or spectral depending on device) Sample intensity (flicker/response): high speed intensity values are measured and send back as multiple samples with a time stamp - only for colorimeters and light meters Sample colour (flicker/response): high speed XYZ values are measured and send back as multiple samples with a time stamp (colorimeters only) Sample spectrums: spectrums are measured and send back as multiple spectrums with a time stamp 12

13 3.7. Functions Hera, Rhea, Cronus, Asteria The table below shows an overview of the function capabilities of the Hera and Rhea spectrometer series, Cronus spectro-colorimeter and Asteria light meter. Function Hera Rhea Cronus Asteria Measure intensity 3.8. Other functions Iliad operates by selecting the measurement function and shows the Modules that can be used to display the measured data afterwards. Additionally, Iliad contains some demo programs, mostly for display measurement. Measure colour Measure spectrum Measure reflection Measure transmission Sample intensity (flicker) Sample intensity (response) Sample colour (flicker) Sample colour (response) Sample spectrums Note: The Asteria series can only measure reflection and transmission with a spectral response that matches the luminosity function V(λ) and for that reason cannot provide any colour information. 13

14 Device tree In the device tree shown at the bottom of the picture on the left, you can change the settings of the device like for example autoranging, integration time, averaging, etc. A precise description of the settings can be found in the operating manual of the device. The example on the left shows a Cronus spectro-colorimeter.

15 4. Modules 4.1. Introduction Iliad contains numerous modules which can be selected depending on the connected device(s). The next subchapters will explain all Iliad modules. The screenshot examples show a Cronus, currently the only Admesy measurement device which runs all modules. When connecting other measurement devices, some modules will not be available. Please be aware that the right functions have to be enabled to access modules. For example using only the measure spectrum function of the Cronus series spectro-colorimeter will not enable the flicker measurement modules. 15

16 4.2. Chromaticity The Chromaticity module displays light and colour coordinates. In combination with the colour pass/fail module, the chromaticity module can be used to qualify samples within specific ranges of x and y. For more information, please see the x,y pass/fail measurement example Datalogging With the datalogging function you can display a datalogging table which can be saved. 16

17 4.4. Flicker With the flicker module you can display an optical signal over time from which flicker values are calculated. Multiple samples are taken over time to measure flicker Flicker value The flicker value shows the calculated flicker value and frequency. On the right top corner, you can select the different flicker measurement methods supported in Iliad. For logging these type of flicker measurement methods in the datalogging module, select the desired methods via Settings, Calculation settings The Omitted samples feature has been added from RC69 onwards. In order to enable Omitted samples feature, the filter in the device tree must be enabled (set to 1). 17

18 4.6. Intensity chart The intensity chart module allows to make Intensity related measurements over time. Depending on the optical configuration of the device, the device measures luminance (lens), illuminance (cosine corrector) Intensity value The Intensity value module shows different photometric intensity values: luminance (cd/m²), illuminance (lux) or luminous intensity (cd). The displayed unit depends on the optical system of the device and/or chosen units. Lens systems can only display luminance values. Devices equipped with cosine corrector can display illuminance (lux) and luminous intensity values (cd). By right clicking on the graph, data can be exported to excel or saved as a picture. 18

19 The Iliad application is capable of measuring luminous intensity (candela) of light sources directly. The luminous intensity (cd) value can be calculated by means of the illuminance (lux) value and distance between light source and detector: cd = lux (d²) Where d is the distance between light source and optics of the measurement device. Note that luminous intensity values can only be calculated correctly when using a device equipped with cosine corrector or integrating sphere calibrated in irradiance mode. To measure luminous intensity, go to Settings, Calculation settings and select Photometric. Under Photometric, Luminous intensity and Illuminance can be chosen as shown on the right. If necessary, you may need to select Cosine if Iliad does not recognize the optical configuration by itself (e.g. when using fiber connected devices). Under Source distance you can enter the value of the distance between light source and measurement device. The distance unit is in meters and can be adjusted whenever necessary in the Intensity value module as shown below. 19

20 4.8. Optics and units Especially for devices equipped with fiber connectors which can be connected to a wide range of optical systems, it is important to ensure the right optical configuration to display the corresponding units. Please ensure the right optical configuration for this type of applications. The tables below show an overview of photometric and radiometric units and required optical configurations. Photometric Lens Cosine corrector Integrating sphere Luminance. Illuminance * Luminous intensity Luminous flux *. Radiometric Lens Cosine corrector Integrating sphere Radiance. Irradiance * Radiant intensity Radiant flux *. Note*: Spectrometers connected to integrating spheres can measure illuminance + irradiance and radiant + luminous intensity if calibrated in irradiance mode. 20

21 4.9. Temperature Iliad allows to measure the current internal temperature of the device. To measure the temperature, go to Settings, Calculation settings and select Sensor temp. Please note that this setting measures the internal temperature at a specific spot. For the Rhea series spectrometer, the sensor temp provides also the current internal temperature. The value shown does not relate to the cooled CCD sensor temperature. 21

22 4.10. Sample spectrums With the sample spectrums you can display multiple shots of spectral data over time and allows determination of changes of the spectrum over time. The table on the left bottom allows recording data Spectrum A single shot of a spectral measurement is displayed. The column shown on the right shows colour values derived from the spectral measurement. This module is also used for transmissive and reflective measurements. 22

23 4.12. PAR values When measuring the spectrum, additional parameters can be measured directly. This includes for example CCT, CRI but also PAR (photosynthetically active radiation) values of light sources. PAR is calculated both in PAR PPFD (μmol m -2 s -1 ) as well as PAR Lux (W/m²). The latter already indicates the PAR values can only be calculated correctly when using a spectrometer with cosine corrector. Please ensure the right optical configuration for this type of applications. PAR calculation can be done over two ranges: nm or nm. For nm PAR calculation, a Hera 02 or 04 are the only suitable devices. To enable measuring the PAR values, go to Settings, Calculation settings and select the PAR values. If necessary, select the nm range. Default range is nm. PAR values are listed in the right column when measuring a spectrum, make sure to have the spectrum module opened. 23

24 4.13. Timer The timer module allows repeated measurement control. This allows and controls datalogging with specific intervals. The minimum interval time depends on the device and application. For more information, please take a look at the operating manual of the device. You can select the parameters you want to log via Settings, Calculation settings. Please be aware that the calculation of multiple parameters may result in long processing times. 24

25 5. Start-up settings Under device in the top bar you can find the start-up settings, here you can find all kind of parameters. You can also set the settings of the autorange. 25

26 6. Steropes light source control Admesy Steropes series light sources can be controlled from the Iliad software directly. Under start-up settings in the top bar, the control panel can be opened for both LED and Halogen (HDX) Steropes. Depending on the type of Steropes (LED or Halogen), the control panel will display the parameters which can be adjusted for each type. Please note that the Steropes LED series need an external 9V power supply to operate at full brightness. Over USB, Steropes LED versions can only provide up to half its maximum brightness due to power restrictions on USB ports. 26

27 7. Calibration Under Device you can find Calibration, here you can perform custom calibration of you device. In the next subchapters we point out custom calibration for Admesy colorimeters, spectrometers and light meters. Depending on the selected device, Iliad supports the following calibration types: Spectral calibration of spectrometer Matrix calibration of colorimeter and spectrometer Whenever you calibrate a spectrometer by matrix, remember this will not change the spectrum but only the output of XYZ, Yxy etc. The spectrum can only be changed by performing a spectral calibration using a NIST traceable light source. This usually requires the use of an integrating sphere and stable power supply to drive the NIST traceable light source correctly. Admesy added the feature to calibrate on XYZ level so that end user can easily calibrate their spectrometer on XYZ colour space instead of spectrum level. This has a huge advantage for factory use to make all instruments perform the same and thus optimize the inter-instrument agreement. 27

28 7.1. Spectrometer calibration The calibration for spectrometers, like for example the Hera and Cronus series can be adjusted by selecting the connected device under Device, Calibration. A screen will appear which shows the Calibration Utility (as shown on the right). Depending on the type of spectrometer, the calibration module may show 2 (Hera) or 3 tabs (Cronus). These tabs are explained on the next pages. The Cronus and Hera are usually shipped including a NIST traceable calibration. Due to this, the Cronus and Hera can be user calibrated in two ways: By means of a calibration light source By using the Admesy factory calibration multiplied by a matrix, a very common way to calibrate colorimeters The second method using a matrix can be used when a sample with known Yxy (or XYZ) values is available. In such cases it is not necessary to go through the normal, rather complex and expensive calibration procedure using NIST traceable light sources. Using the matrix allows to obtain luminance and colour values. NOTE: The matrix and values changed in the matrix do not influence the spectrum nor the absolute (spectral) calibration of the spectrometer. It only adjusts the XYZ values that have been calculated using the spectral data. 28

29 User spectrum calibration The first tab is for spectrum calibration using a calibration lamp. Corresponding lamp data should be read from file first. The path must be set correctly and the file should be read. An example can be found in C:\Program Files (x86)\iliad\calibration The range indicator is equal to the earlier discussed clip indicator in the main software panel. This is useful to obtain a good S/N for the calibration. Make sure the signal is between If it is not, adjust the integration time. After the spectrum has been measured correctly, the data can be stored inside the instrument by clicking the Write button. After opening the data, the integration time and averaging should be set. The lamp and spectrometer should be set up correctly and click Calibrate button afterwards to measure the lamp s spectrum. The user calibration can be chosen in the main software screen via the Calibration control. 29

30 Spectrometer matrix calibration The sample reference data should be entered in the reference values fields. All fields must be filled or less number of points should be selected. Through this tab it is possible to use the Admesy spectrum calibration and add a user defined matrix to that. This will calibrate the XYZ output data. It is recommended to set autorange on. When measuring the reference sample, the point control should be set to the correct sample number. After that the Measure button can be clicked. The number of points can be used to either measure multiple reference samples or in case of display measurement to set it to 3 in order to measure red, green and blue. 30

31 Once all measurements are finished, the Calculate matrix button should be clicked and a matrix will be calculated. After this, the new calibration matrix can be written to the instrument. The calibration matrix can be chosen in the main software screen by the SP.Cal.matrix item. 31

32 XYZ sensor calibration Once the Cronus is positioned on the sample, click the Measure Spectrometer button, followed by the Measure Colorimeter button. NOTE: This part is only applicable to the Cronus series spectrocolorimeter. The colorimeter sensor in the Cronus can be calibrated using the spectrometer part of the Cronus. Alternatively reference values can be entered manually, thus not using the spectrometer part of Cronus. Alike the previous calibration example, you need to set the Number of points and the point for measurement. The advantage of using the colorimeter is mainly speed. For example, low luminance measurements could be done by the colorimeter to save time. Once all points have been measured, select the user matrix number that you want to write into, for example User matrix 1. All settings must be checked carefully so that the spectrometer measures correctly and the colorimeter measures correctly. It is again recommended to use SP autorange and Col autorange to get good S/N ratios during calibration. 32

33 Click the Calculate matrix button. Now the matrix can be written to the instrument by setting a name for it and clicking the Write XYZ matrices button. The written matrix can be selected in the main software screen by the COL.Cal.matrix item. The value user1 refers to matrix number 1. 33

34 7.2. Colorimeter calibration The calibration for colorimeters, like for example the MSE series can be adjusted by selecting the connected device under Device, Calibration. A screen will appear which shows the Calibration Utility (as shown on the right). In order to calibrate the colorimeter for a specific sample, it is necessary to start with accurate reference values. These references can be obtained from a spectrometer by measuring the sample or can be supplied already with the sample. The use of spectrometers is recommended as samples may degrade over time. Note: It is recommended to turn Auto-range on during the calibration process. 34

35 The reference values have to be filled into the Reference system values table. The RGB Calculation mode is recommended for display measurements. In case difficulties are experienced with the display, other choices may be tested. Once the reference values are filled into the Reference system values, the colorimeter can be calibrated. This can be done by clicking the measurement buttons, below the Admesy value fields. Results are displayed in the Admesy values table. It is recommended to measure multiple times to verify measurement stability. In case the measurement is not stable enough, the averaging setting or the integration time setting may have to be increased. 35

36 After all values are measured, click the Calculate button to calculate the calibration matrix. In case a sample does produce only one colour (LED, backlight, lamps for example), there are two calibration options. Linear By using multiple samples and fill them into the RGB fields. The calibration matrix is shown afterwards and can be programmed into the colorimeter. Note that the a user matrix number must be set before programming (the example below shows user matrix number 1). When choosing linear calibration, only one reference value is necessary. The calibration value will in that case only show the white value. When measuring white and calculating the matrix, only the diagonal is filled with data. After programming is finished, click OK in the following dialog. After finishing the calibration, it is recommended to verify the calibration. 36

37 The calibration utility offers a choice to input either Yxy or XYZ values. This is selected by the colour space control. The Calculation mode offers other calibration modes like RGBW, RGBWG RGBGCMY. These are only rarely used, but may be required to measure special samples. Note that all values should be filled in and no fields should be left to zero. In case very dark samples are measured, it may be necessary to measure dark before carrying out the calibration measurements. 37

38 7.3. Light meter calibration When using or implementing the Asteria in a measurement setup, the raw measured value can be adjusted to other measurement devices, if necessary. This can be done by adjusting the calibration factor (CF). This calibration factor is in fact a multiplication factor of the raw intensity measurement. For example, a reference system measures 300cd/m² and Asteria with CF=OFF measures 280cd/m², then the calibration factor becomes: 300 / 280 = Admesy Iliad software supports this type of calibration of the Asteria but the calibration factor can also be manually written to the Asteria s CF factors (see above EEPROM commands). The calibration factor can be adjusted by selecting the Asteria under Device, Calibration. 38

39 8. Firmware update 8.1. Introduction Under the device menu you can find the firmware upgrade tool to check for the latest firmware for your Admesy measurement device. NOTE: If you have never performed an update to a device please do not forget to check the checkbox Install bootloader driver. This is only necessary during the first update of the firmware. Afterwards Windows stores the device s bootloader driver. Consider that every device has a unique bootloader (e.g. the Hera s bootloader is different from the Asteria s bootloader). The drivers are typically located in: C:\Program Files (x86)\iliad\bootloader_drivers When using the drivers on Windows8, it may be necessary to disable driver signature enforcement. 39

40 8.2. Firmware update example (Asteria) As example, this subchapter shows the firmware update procedure for an Asteria light meter. When the Asteria is connected and the Firmware update screen is opened the checkbox Install bootloader driver should be checked. Click Upgrade Firmware afterwards. Latest firmware is available on the Admesy website: Browse to the firmware file on your computer and click Program device. Wait until the upgrade has finished and close the firmware tool afterwards. Iliad will automatically re-open the instrument. After upgrading, the message Programming successful appears. 40

41 9. Flicker measurement example (Asteria) When using the high speed intensity measurement function of the Asteria light meter, flicker measurements can be carried out. The Asteria acts like an optical oscilloscope in this function. Besides flicker, the Asteria allows luminance or illuminance measurements. The lens system Asteria is developed for luminance measurements (cd/m²), the cosine corrector version measures illuminance (lux) and luminous intensity (cd). The picture on the left shows the functions of the Asteria to be set. Change this to Sample Intensity (flicker). After this step, the flicker module from Modules can be selected (see picture below). After selecting the Flicker module, the screen as shown on the next page appears showing all relevant flicker values. 41

42 Selectable sample rate When using the Asteria, the sample rate can be changed according to the measurement needs. The sample rate determines in combination with the number of samples the total measurement time. For example when measuring samples at a sample rate of 46642Hz, the measurement will take 1s to be completed. The same number of samples measured at the maximum sample speed of Hz will take 0.25s. 42

43 Edit to clear FFT LOG Sample rate When clicking the Record button, the table at the bottom will show the results according to the JEITA method per frequency, starting from 2 Hz up to 65 Hz. Lower frequencies than 2 Hz cannot be determined as the measurement time equals 1 second. By adjusting the delay, the measurement time can be increased, offering the possibility to measure low frequencies. See the example on the next page. The table can be cleared under Edit, Clear FFT log or Clear last FFT log. 43

44 9.1. Delay function The delay function offers the possibility of oversampling: giving the average of an initial sample and X number of next samples. Where X is the Delay value. Below we will give some additional explanation and examples the Delay function. As graphic example, we show two examples where 10 samples are shown. The initial sample ( i ) is shown as an orange block. The Delay samples ( d ) are shown blue. On the next two pages, examples are given of what the Delay function does in practice. Exceptions are the older Admesy devices, which do not have an oversampling functionality. The delay value determines the number of samples to be skipped. For example when set delay at 9, the first sample is measured, the next following 9 are skipped. This means that every 10 th sample is taken. All other samples are not taken into account. Example 1: Delay 0. The Asteria has a sample rate of samples per second (typical for the device). When the delay is set to 0, there is no next value to average with the initial sample. The next sample is directly measured, resulting in samples taken directly after another. With this (fixed) sample rate, the measurement takes exactly 1 second. i i i i i i i i i i Sample nr. Example 2: Delay 2. If the delay is set to 2, the device takes the average of the initial value and the next 2 samples. This means the initial value is averaged with every 2 nd and 3 rd sample. The 4 th sample is averaged with the 5 th and 6 th and so on. Thus, if we measure again samples with Delay 2, three samples are taken to make one value, the measurement time will be three times the initial measurement time: 3 seconds. i d d i d d i d d i Sample nr. 44

45 Number of samples The example illustrated above shows an Asteria which has a typical maximum sample rate of samples per second. In this case minus 4000 omitted samples are measured which equals 36000/ samples per second = 0,2144s. 45

46 The example above shows a similar measurement which is carried out with a delay of 9. This means the initial value is averaged with the next 9. The average of 10 samples is taken to make 1 average. In case of samples, the total measurement time is ten times the measurement time of the example on the previous page. 46

47 9.2. Settings Settings which are valid for flicker are the following: Auto-range Gain Nr of samples Delay Filter Cut-off freq Col.Cal.matrix The flicker measurement circuit (trans-impedance amplifier) has three resistor stages for large dynamic range. When using auto-range the gain is defined automatically. Care should be taken that no clipping of the signal occurs. We always recommend to start with auto-range. In most cases this is more than sufficient. With the nr. of samples and delay you can control the measurement time and the amount of data you get back as explained in the previous sub chapter. With the filter and cut-off frequency you can add a filter function over the measured data. Original data and filtered data can be saved. With the col.cal.matrix you can choose the factory calibration factor. In the case of the Asteria, it is matched on three types of light sources. Lens system (luminance) Factory 1 calibrated on a led backlight LCD Factory 2 calibrated on a CCFL LCD Factory 3 calibrated on a halogen light source Factory 4 10 not calibrated, for future use and OEM User 1 10 calibration space for user Cosine corrector system (illuminance & luminous intensity) Factory 1 calibrated on a halogen light source Factory 2 calibrated on a white LED light source Factory 3 calibrated on a fluorescent light source Factory 4 10 not calibrated, for future use and OEM User 1 10 calibration space for user 47

48 Export and save data A time diagram and the FFT is shown. The values on the Y-axis represent the luminance or illuminance (value depending on the Asteria s optical system). 48

49 10. (Il)luminance measurement example (Asteria) When using the measure intensity function of the Asteria luminance (cd/m²) or illuminance (lux) measurements can be taken. The main difference is that the luminance / illuminance measurements are done with an integrating amplifier circuit. This makes it possible for very low level luminance measurements at a quit fast rate. The picture below shows the required settings. Afterwards, you can select the module Intensity value from Modules and the following screen will appear (see next page). 49

50 Luminance or illuminance values will be shown (depending on the Asteria s optical system). 50

51 10.1. Settings Settings which are valid for intensity are the following: Auto-range Gain Integration time Col.Cal.matrix The flicker measurement circuit (integrating amplifier) has three capacitor stages for very large dynamic range. When using auto-range the gain is defined automatically. We always recommend to start with auto-range in this mode. Paramaters of the auto-range for this mode can be set under Device, Startup settings. With integration time you can set the measurement time. In case you run the system on autorange, it is not necessary to change this value as it is ignored by Iliad. With the col.cal.matrix you can choose the factory calibration factor. In case of the Asteria it is matched on three types of light sources. Lens system (luminance) Factory 1 calibrated on a led backlight LCD Factory 2 calibrated on a CCFL LCD Factory 3 calibrated on a halogen light source Factory 4 10 not calibrated, for future use and OEM User 1 10 calibration space for user Cosine corrector system (illuminance & luminous intensity) Factory 1 calibrated on a halogen light source Factory 2 calibrated on a white LED light source Factory 3 calibrated on a fluorescent light source Factory 4 10 not calibrated, for future use and OEM User 1 10 calibration space for user 51

52 11. Reflective measurement example (Hera) Reflective measurements can be carried out using a combination of a measurement device (e.g. Hera spectrometer), stabilized light source like for example Admesy s Steropes series and accessories such as the reflective probes. By selecting the Measure Reflection function under Function1, the appropriate settings are selected (see next page). For more information about reflective measurements, please take a look at our special application page and application note: 52

53 First, select the Measure Reflection functionality under Function 1. 53

54 Then, select Spectrum from the Modules. Place the reference white tile under the measurement spot and click the yellow light bulb (as marked orange in the screenshot above) in the upper bar and click record. A reference measurement is done and the screen with similar spectrum as above appears. 54

55 The software is now ready for reflective measurements. In some cases, it is advisable to repeat the reference measurements on a regular basis. 55

56 12. Transmissive measurement example (Hera) Transmissive measurements can be carried out using a combination of a measurement device (e.g. Hera spectrometer) and stabilized light source like for example Admesy s Steropes series. For more information about transmissive measurements, please take a look at our special application page and application note: 56

57 First, select the Measure Transmission functionality under Function 1. 57

58 Then, select Spectrum from the Modules. Click the yellow light bulb (as marked orange in the screenshot above) in the upper bar and click record. A reference measurement is done and the screen with similar spectrum as above appears. 58

59 The software is now ready for transmissive measurements. In some cases, it is advisable to repeat the reference measurements on a regular basis. 59

60 13. Pass/fail module Iliad has a built-in pass/fail module to determine whether measured parameters (e.g. x,y colour coordinates) are within a specific range. This allows straightforward and direct pass/fail assessment. For a parameter a minimum and maximum value can be set depending on the measurement needs. The example below shows a Hera-01 spectrometer used for x,y pass/fail assessment. In order to use the pass/fail function in Iliad, go to Settings, Calculation settings. Select all necessary parameters to measure, ensure x,y is checked in order to proceed this pass/fail module functionality for colour check (see image below) and click ok. 60

61 Go to Settings, Limit settings. Next, select Chromaticity, Spectrum or Pass/fail under Modules to start the pass/fail assessment for x,y. In case the Chromaticity or Spectrum module is selected, the normal chromaticity or spectrum will be shown respectively. Additionally a pass/fail indicator will appear in the module. The Pass/fail module only shows pass or fail based on the limits. Select x, fill in the Lower limit and press enter. Again for Upper limit and press enter. Repeat the steps for setting the lower and upper limits for y. Pass/fail measurements can be carried out continuously, or a single measurement, depending on the measurement needs. The following screens appear as shown on the next page. As example, one pass and one fail example are shown in the chromaticity module. 61

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63 Admesy B.V. Sleestraat CA Ittervoort The Netherlands T +31 (0) F +31 (0) info@admesy.com The material in this document is subject to change. No rights can be derived from the content of this document. All rights reserved. No part of this document may be reproduced, stored in a database or retrieval system, or published in any form or way, electronically, mechanically, by print, photo print, microfilm or any other means without prior written permission from the publisher. Version /