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Appendix B: Chromaticity Reference

J18 Photometer Instruction Manual

B–7

.600

.500

.400

.300

.200

.100

.000

.100

.200

.300

.400

.500

.600

Purple

Reddish

Purple

Purplish

Red

White

Purplish

Pink

Greenish

Blue

Bluish
Green

Green

Orange

Yellow

Yellowish

Green

Yellow

Green

Orange

Yellowish

Pink

Reddish

Orange

Purplish Blue

Greenish

Yellow

Blue

Yellow

ui Coordinate

vi Coordinate

Figure B–4: 1976 CIE-UCS Chromaticity Diagram

Appendix B: Chromaticity Reference

J18 Photometer Instruction Manual

B–7

.600

.500

.400

.300

.200

.100

.000

.100

.200

.300

.400

.500

.600

Purple

Reddish

Purple

Purplish

Red

White

Purplish

Pink

Greenish

Blue

Bluish
Green

Green

Orange

Yellow

Yellowish

Green

Yellow

Green

Orange

Yellowish

Pink

Reddish

Orange

Purplish Blue

Greenish

Yellow

Blue

Yellow

ui Coordinate

vi Coordinate

Figure B–4: 1976 CIE-UCS Chromaticity Diagram

Содержание LumaColor II J18

Страница 1: ...servicing unless you are qualified to do so Refer to the Safety Summary prior to performing service J18 LumaColor II Photometer Instruction Manual 070 9021 03 This document applies to firmware version...

Страница 2: ...P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc Copyright E Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign pate...

Страница 3: ...y IEC 801 2 Electrostatic Discharge IEC 801 3 RF Radiated IEC 801 4 Fast Transients IEC 801 5 Surge EC Declaration of Conformity We Tektronix Holland N V Marktweg 73A 8444 AB Heerenveen The Netherland...

Страница 4: ......

Страница 5: ...RESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES WARRANTY Tektronix warrants that this product will be free from defects in materials and workmanship...

Страница 6: ......

Страница 7: ...onditions 2 5 Storing Measurements 2 6 Recalling Stored Measurements 2 7 Comparing Measurements 2 8 J18 Photometer Instruction Manual i Table of Contents General Safety Summary v Service Safety Summar...

Страница 8: ...am B 2 The 1976 CIE UCS Chromaticity Diagram B 6 Spectral Tristimulus Values B 8 Glossary and Index Table of Contents ii J18 Photometer Instruction Manual Reference RS 232D Operation 3 1 RS 232 Pin Co...

Страница 9: ...re B 5 Spectral Tristimulus Values for Equal Spectral Power Source CIE 1931 Standard 2 Observer B 8 Table of Contents J18 Photometer Instruction Manual iii List of Figures Figure 1 1 Low Battery Warni...

Страница 10: ...le B 1 Spectral Tristimulus Values for Equal Spectral Power Source CIE 1931 Standard 2 Observer B 9 Table of Contents iv J18 Photometer Instruction Manual List of Tables Table 2 1 Factory Preset 6500...

Страница 11: ...res If you suspect there is damage to this product have it inspected by qualified service personnel J18 Photometer Instruction Manual v General Safety Summary Review the following safety precautions t...

Страница 12: ...ely accessible as you read the marking CAUTION indicates a hazard to property including the product General Safety Summary vi J18 Photometer Instruction Manual Do Not Immerse in Liquids Clean the prob...

Страница 13: ...uct DANGER High Voltage Protective Ground Earth Terminal ATTENTION Refer to Manual Double Insulated General Safety Summary J18 Photometer Instruction Manual vii Symbols on the Product The following sy...

Страница 14: ...s of this product unless another person capable of rendering first aid and resuscitation is present viii J18 Photometer Instruction Manual Service Safety Summary Only qualified personnel should perfor...

Страница 15: ...eter H Performance Verification H Maintenance H Replaceable Parts H Appendices H Glossary and Index J18 Photometer Instruction Manual ix Preface This manual contains information to support user operat...

Страница 16: ...Preface x J18 Photometer Instruction Manual Preface x J18 Photometer Instruction Manual...

Страница 17: ...Getting Started Getting Started...

Страница 18: ......

Страница 19: ...wered operation AC adapter available as an optional accessory H Backlighted display H Analog output J18 Photometer Instruction Manual 1 1 Product Description The J18 is a digital photometer radiometer...

Страница 20: ...with the name of your company a person to contact at your company and a description of the problem Product Description 1 2 J18 Photometer Instruction Manual Unpacking the J18 LumaColor II Photometer...

Страница 21: ...the battery voltage is below 7 2 volts at initial power on the J18 will not complete the self test J18 Photometer Instruction Manual 1 3 Power Options The J18 may be powered by either of two sources...

Страница 22: ...the J18 and make sure that the low battery warning is not flashing Figure 1 2 Replacing the Battery Power Options 1 4 J18 Photometer Instruction Manual Battery Installation CAUTION Follow the manufact...

Страница 23: ...NOTE AC power adapters that provide less than 12 volts may not automatically turn on the backlight Power Options J18 Photometer Instruction Manual 1 5 Using the Optional AC Power Adapter The J18 may...

Страница 24: ...Power Options 1 6 J18 Photometer Instruction Manual Power Options 1 6 J18 Photometer Instruction Manual...

Страница 25: ...e the photometer power off and then on again This procedure ensures a complete photometer auto zero J18 Photometer Instruction Manual 1 7 Functional Check The J18 performs a self test when first turne...

Страница 26: ...s the firmware version that is installed See Figure 1 6 Figure 1 6 Typical Firmware Version Display Functional Check 1 8 J18 Photometer Instruction Manual 3 After the auto zero is complete all of the...

Страница 27: ...n the selected color coordinate system See Figure 1 8 Figure 1 8 Typical Color Chromaticity Display Functional Check J18 Photometer Instruction Manual 1 9 5 After the firmware version is displayed the...

Страница 28: ...es the error message shown in Figure 1 10 Figure 1 10 Sensor Head Missing or Not Recognized Display Functional Check 1 10 J18 Photometer Instruction Manual If the attached sensor head is a single chan...

Страница 29: ...Operating Basics Operating Basics...

Страница 30: ......

Страница 31: ...compartment The POWER switch turns the J18 on or off The J18 performs a brief self test at power on J18 Photometer Instruction Manual 2 1 Functional Overview This section provides a overview of the co...

Страница 32: ...ill have no effect with other heads Refer to Appendix B for information on color coordinate systems Functional Overview 2 2 J18 Photometer Instruction Manual J18 Control Descriptions and Operation Pre...

Страница 33: ...ntial measurement mode The color coordinate system in use is displayed on the right side J1810 only Functional Overview J18 Photometer Instruction Manual 2 3 J18 Display The HOLD icon is displayed whe...

Страница 34: ...ut output samples the amplifier output before the A to D converter See page 3 9 9 to 16VDC 50mA MAX Functional Overview 2 4 J18 Photometer Instruction Manual J18 Side Panel Connections ANALOG OUTPUT R...

Страница 35: ...J1800 Series LumaColor Photometer Sensor Heads Technical Reference for specific turn on procedures J18 Photometer Instruction Manual 2 5 Tutorial This section lists step by step instructions for stor...

Страница 36: ...2 1 Measurement with HOLD 2 Press the DIFF REF button to select the differential measure ment mode Tutorial 2 6 J18 Photometer Instruction Manual Storing Measurements NOTE The STORE button will only...

Страница 37: ...d in the memory location 4 Press the HOLD RUN button to return to the differential measurement mode Tutorial J18 Photometer Instruction Manual 2 7 3 Repeatedly press the DIFF REF button to select the...

Страница 38: ...TE The bargraphs are nonlinear to provide improved resolution when approaching the reference values Tutorial 2 8 J18 Photometer Instruction Manual 5 Press the HOLD RUN button again to return to the di...

Страница 39: ...DIFF REF button to display the difference measure ment using the reference value selected in step 2 Tutorial J18 Photometer Instruction Manual 2 9 Factory stored reference values for video display whi...

Страница 40: ...Tutorial 2 10 J18 Photometer Instruction Manual Tutorial 2 10 J18 Photometer Instruction Manual...

Страница 41: ...Reference Reference...

Страница 42: ......

Страница 43: ...its 8 Stop Bits 1 Data Type Asynchronous Operational Mode Half duplex accepts software flow control J18 Photometer Instruction Manual 3 1 RS 232D Operation You can use the J18 LumaColor II Photometer...

Страница 44: ...ound Receive Transmit RS 232 DB 9 Female 3 5 mm Stereo Phone Plug Figure 3 2 RS 232 Pin Connections RS 232D Operation 3 2 J18 Photometer Instruction Manual RS 232 Pin Connections An RS 232 cable is av...

Страница 45: ...ure 3 3 Sample Measurement Message Each line is terminated by a carriage return and line feed CR LF J18 Photometer Instruction Manual 3 3 Syntax The data format for measurements consists of a units no...

Страница 46: ...stimulus values u v 1976 CIE UCS color coordinate system x y units 1931 CIE color coordinate system Syntax 3 4 J18 Photometer Instruction Manual Table 3 2 lists the abbreviations the J18 uses when rep...

Страница 47: ...cs Items in italics are names of parameters Specify the appropriate value when entering the command Syntax J18 Photometer Instruction Manual 3 5 Table 3 3 summarizes the syntax conventions of the comm...

Страница 48: ...Syntax 3 6 J18 Photometer Instruction Manual Syntax 3 6 J18 Photometer Instruction Manual...

Страница 49: ...f n 128 or greater causes the J18 to report measurements continuously until another command is sent J18 Photometer Instruction Manual 3 7 Commands The J18 LumaColor II Photometer recognizes ten comman...

Страница 50: ...Commands 3 8 J18 Photometer Instruction Manual Commands 3 8 J18 Photometer Instruction Manual...

Страница 51: ...s located on the right side panel of the J18 Analog Output Figure 3 4 Location of the Analog Output J18 Photometer Instruction Manual 3 9 Analog Output The J18 features an uncalibrated analog output f...

Страница 52: ...uctor positive Time Constant 100 ms Output Level typical 0 to 5 VDC Output Impedance typical 100 kW Analog Output 3 10 J18 Photometer Instruction Manual Table 3 5 Analog Output Specifications Characte...

Страница 53: ...Specifications Specifications...

Страница 54: ......

Страница 55: ...ical 30 hours IEC 6LR61 battery with backlight off and RS 232 unplugged Low Battery Indicator 7 2 V J18 Photometer Instruction Manual 4 1 Specifications Tables 4 1 through 4 5 list the specifications...

Страница 56: ...ensions Height 198 mm 8 inches Width 93 mm 3 7 inches Depth 34 mm 1 3 inches Weight 1 4 kg 3 pounds Specifications 4 2 J18 Photometer Instruction Manual Table 4 3 Warranted Environmental Specification...

Страница 57: ...version 3 to 3 000 cd m2 nit 1 to 10 000 fL J1823 Option 01 30 to 30 000 cd m2 nit 10 to 10 000 fL Specifications J18 Photometer Instruction Manual 4 3 Table 4 5 Warranted Sensor Ranges Sensor Range...

Страница 58: ...Specifications 4 4 J18 Photometer Instruction Manual Specifications 4 4 J18 Photometer Instruction Manual...

Страница 59: ...less you are qualified to do so Refer to all Safety Summaries before performing any service WARNING The following servicing instructions are for use only by qualified personnel To avoid injury do not...

Страница 60: ......

Страница 61: ...Performance Verification Performance Verification...

Страница 62: ......

Страница 63: ...d will not work with the J18 The J1820 sensor head will only work with the J17 LumaColor photometer J18 Photometer Instruction Manual 5 1 Performance Verification Performance verification procedures a...

Страница 64: ...Performance Verification 5 2 J18 Photometer Instruction Manual Performance Verification 5 2 J18 Photometer Instruction Manual...

Страница 65: ...Maintenance Maintenance...

Страница 66: ......

Страница 67: ...e procedures if you want to repair the photometer yourself There are no user adjustments in the J18 J18 Photometer Instruction Manual 6 1 Service Strategy The J18 is user serviceable to the circuit bo...

Страница 68: ...Service Strategy 6 2 J18 Photometer Instruction Manual Service Strategy 6 2 J18 Photometer Instruction Manual...

Страница 69: ...of the illumination Position the sensor head so that it does not shadow the surface being measured J18 Photometer Instruction Manual 6 3 Troubleshooting If the J18 LumaColor II Photometer or one of t...

Страница 70: ...cedure in Checking the Power Supply to verify that the power supply and not the battery is at fault Troubleshooting 6 4 J18 Photometer Instruction Manual H Operating the sensor head in contact with th...

Страница 71: ...g the hex wrench remove the four screws from the J18 front panel 3 Remove the back cover of the J18 Troubleshooting J18 Photometer Instruction Manual 6 5 The A1 Board Most functions of the J18 are loc...

Страница 72: ...the problem is not the power supply If these voltages are not correct the A1 board must be replaced Troubleshooting 6 6 J18 Photometer Instruction Manual 4 Remove the five screws that attach the A1 bo...

Страница 73: ...Replaceable Parts Replaceable Parts...

Страница 74: ......

Страница 75: ...ures of the list will help you find the all the information you need for ordering replacement parts J18 Photometer Instruction Manual 7 1 Replaceable Parts This section contains a list of the modules...

Страница 76: ...ied Abbreviations Abbreviations conform to American National Standards Institute ANSI standard Y1 1 Replaceable Parts 7 2 J18 Photometer Instruction Manual Item Names In the Replaceable Parts List an...

Страница 77: ...l 7 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 6 8 Figure 7 1 J18 Replaceable Parts Replaceable Parts J18 Photometer Instruction Manual 7 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18...

Страница 78: ...Replaceable Parts 7 4 J18 Photometer Instruction Manual 1 2 Figure 7 2 J18 Optional Accessories Replaceable Parts 7 4 J18 Photometer Instruction Manual 1 2 Figure 7 2 J18 Optional Accessories...

Страница 79: ...0 MM DIAPIN 7 MM H X 3 3 MM TAIL 3 COND W SWITCH MTG POST DC PWR JACK 1 AMP 12V J90 TK2427 ADC 016 Replaceable Parts J18 Photometer Instruction Manual 7 5 Fig Index No Tektronix Part No Serial No Eff...

Страница 80: ...M OHM SW51 34361 B3F 3152 22 366 0720 00 1 PUSH BUTTON BLACK 0 156 X 0 156 X 0 218 H 61964 B32 1010 Replaceable Parts J18 Photometer Instruction Manual 7 6 Fig Index No Mfr Part No Mfr Code 12345 Name...

Страница 81: ...232 CABLE 72 0 L 1Y013 012 1411 00 070 9017 02 1 MANUAL TECH TECH REF J1800 SENSORS 80009 070901701 Replaceable Parts J18 Photometer Instruction Manual 7 7 Fig Index No Mfr Part No Mfr Code 12345 Name...

Страница 82: ...DRIVE BEAVERTON OR 97006 34361 OMRON ELECTRONICS INC 2105 HAMILTON AVE SUITE 160 SAN JOSE CA 95125 Replaceable Parts J18 Photometer Instruction Manual 7 8 CROSS INDEX MFR CODE NUMBER TO MANUFACTURER...

Страница 83: ...BEAVERTON OR 97077 0001 91506 AUGAT IPD 452 JOHN DIETSCH BLVD PO BOX 2510 ATTLEBORO FALLS MA 02763 Replaceable Parts J18 Photometer Instruction Manual 7 9 CROSS INDEX MFR CODE NUMBER TO MANUFACTURER...

Страница 84: ...Replaceable Parts J18 Photometer Instruction Manual 7 10 Replaceable Parts J18 Photometer Instruction Manual 7 10...

Страница 85: ...Appendices Appendices...

Страница 86: ......

Страница 87: ...ith the square of the distance exactly compensating for light falloff due to the inverse square law J18 Photometer Instruction Manual A 1 Appendix A Photometry and Radiometry Reference This appendix s...

Страница 88: ...ith the square of the distance exactly compensating for light falloff due to the inverse square law Appendix A Photometry and Radiometry Reference A 2 J18 Photometer Instruction Manual Photometric For...

Страница 89: ...verted using mathematical integrations of their intensity and the photopic curve at each wavelength Appendix A Photometry and Radiometry Reference J18 Photometer Instruction Manual A 3 Radiometric For...

Страница 90: ...Appendix A Photometry and Radiometry Reference A 4 J18 Photometer Instruction Manual Appendix A Photometry and Radiometry Reference A 4 J18 Photometer Instruction Manual...

Страница 91: ...tandardizing CRT Measurements by Peter Keller in the April 1984 issue of Test and Measurement World J18 Photometer Instruction Manual B 1 Appendix B Chromaticity Reference The reference material in th...

Страница 92: ...e x y chart is that equal distances on the diagram do not represent equal perceived color distances Appendix B Chromaticity Reference B 2 J18 Photometer Instruction Manual The 1931 CIE Chromaticity Di...

Страница 93: ...e Y Coordinate Yellowish Pink Blue Green Purple Yellow Figure B 1 The 1931 CIE Chromaticity Diagram Appendix B Chromaticity Reference J18 Photometer Instruction Manual B 3 600 500 400 300 200 100 000...

Страница 94: ...00 3500 2850 2350 1900 1500 1000 Figure B 2 1931 CIE Chromaticity Diagram Showing Color Temperature Appendix B Chromaticity Reference B 4 J18 Photometer Instruction Manual Figure B 2 shows the Plancki...

Страница 95: ...600 Planckian Locus 3000 5000 6000 4000 10000 20000 Figure B 3 Correlated Color Temperature Diagram Appendix B Chromaticity Reference J18 Photometer Instruction Manual B 5 Figure B 3 shows selected is...

Страница 96: ...esent approximately equal perceived color differences H The equal energy point is ui 0 210 vi 0 473 Appendix B Chromaticity Reference B 6 J18 Photometer Instruction Manual The 1976 CIE UCS Chromaticit...

Страница 97: ...reenish Yellow Blue Yellow ui Coordinate vi Coordinate Figure B 4 1976 CIE UCS Chromaticity Diagram Appendix B Chromaticity Reference J18 Photometer Instruction Manual B 7 600 500 400 300 200 100 000...

Страница 98: ...at y l is also the photopic curve that represents the relative sensitivity of the average human eye Appendix B Chromaticity Reference B 8 J18 Photometer Instruction Manual Spectral Tristimulus Values...

Страница 99: ...485 0 0580 0 1693 0 6162 490 0 0320 0 2080 0 4652 495 0 0147 0 2586 0 3533 500 0 0049 0 3230 0 2720 Appendix B Chromaticity Reference J18 Photometer Instruction Manual B 9 Table B 1 Spectral Tristimul...

Страница 100: ...610 1 0026 0 5030 0 0003 615 0 9384 0 4412 0 0002 620 0 8544 0 3810 0 0002 625 0 7514 0 3210 0 0001 Appendix B Chromaticity Reference B 10 J18 Photometer Instruction Manual Table B 1 Spectral Tristimu...

Страница 101: ...735 0 0010 0 0004 0 0000 740 0 0007 0 0002 0 0000 745 0 0005 0 0002 0 0000 750 0 0003 0 0001 0 0000 Appendix B Chromaticity Reference J18 Photometer Instruction Manual B 11 Table B 1 Spectral Tristimu...

Страница 102: ...0001 0 0000 0 0000 775 0 0001 0 0000 0 0000 780 0 0000 0 0000 0 0000 Totals 21 3714 21 3711 21 3715 Appendix B Chromaticity Reference B 12 J18 Photometer Instruction Manual Table B 1 Spectral Tristimu...

Страница 103: ...Glossary and Index Glossary and Index...

Страница 104: ......

Страница 105: ...lengths being measured Isotropic Source A light source that emits light uniformly in all directions J18 Photometer Instruction Manual Glossary 1 Glossary Area Source A light source of large angular si...

Страница 106: ...n watts steradian with a sensor having equal spectral sensitivity to the wavelengths being measured Glossary Glossary 2 J18 Photometer Instruction Manual Luminance The amount of light emitted or scatt...

Страница 107: ...us Values X Y Z The amounts of each of three color primaries required to match the color of a light Glossary J18 Photometer Instruction Manual Glossary 3 Radiometry The measurement of radiant power A...

Страница 108: ...Glossary Glossary 4 J18 Photometer Instruction Manual Glossary Glossary 4 J18 Photometer Instruction Manual...

Страница 109: ...ram B 5 J J18 features 1 1 front panel controls 2 1 illustrated 2 1 J18 head 1 10 K Kelly chart B 2 J18 Photometer Instruction Manual Index 1 Index A Accuracy conditions affecting 6 3 Adapter power 1...

Страница 110: ...Tristimulus values B 8 Troubleshooting basic 6 3 board level 6 4 power supply check 6 5 U UNITS 2 2 Index Index 2 J18 Photometer Instruction Manual L Low battery warning 1 3 M Measurements comparing 2...

Страница 111: ...Index J18 Photometer Instruction Manual Index 3 X XYZ values B 8 Index J18 Photometer Instruction Manual Index 3 X XYZ values B 8...

Страница 112: ...Index Index 4 J18 Photometer Instruction Manual Index Index 4 J18 Photometer Instruction Manual...

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Страница 114: ......

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