Test Report issued under the responsibility of: TEST REPORT IEC 62471 Photobiological safety of lamps and lamp systems Report Reference No. .................... : 11-1382-0470 Date of issue .................................... : 2011-10-17 Total number of pages .................... : 20 pages CB Testing Laboratory .................. : KTL (Korea Testing Laboratory) Address ............................................ : 222-13, Guro-3dong, Guro-gu, Seoul, 152-718, Korea Applicant’s name ........................... : SEOUL SEMICONDUCTOR CO., LTD Address ............................................ : 148-29, Gasan-dong, Geumcheon-gu, Seoul, 153-023, Korea Test specification: Standard ........................................... : IEC 62471:2006 (First Edition) + European Group Difference and National Differences Test procedure ................................. : N/A Non-standard test method…………..: N/A Test Report Form No. .................... : IEC62471A TRF Originator ................................. : VDE Testing and Certification Institute Master TRF ...................................... : Dated 2009-05 Copyright © 2009 IEC System for Conformity Testing and Certification of Electrical Equipment (IECEE), Geneva, Switzerland. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the IECEE is acknowledged as copyright owner and source of the material. IECEE takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. If this Test Report Form is used by non-IECEE members, the IECEE/IEC logo and the reference to the CB Scheme procedure shall be removed. This report is not valid as a CB Test Report unless signed by an approved CB Testing Laboratory and appended to a CB Test Certificate issued by an NCB in accordance with IECEE 02. Test item description ..................... : LED Packages Trade Mark ....................................... : Manufacturer .................................... : Same as applicant Model/Type reference ...................... : STW7T16A and STW8T16A Ratings ............................................. : Max. Foward Current IF = 90 mA TRF No. IEC62471A Page 2 of 20 Report No. : 11-1382-0470 Testing procedure and testing location: CB Testing Laboratory: Testing location/ address .......................: KTL (Korea Testing Laboratory) 222-13, Guro-3dong, Guro-gu, Seoul, 152-718, Korea Associated CB Laboratory: Testing location/ address .......................: Tested by (name + signature) ..... : Jae-Hoon Jung .................................... Approved by (+ signature) ............ : Jong-Koo Park ..................................... Testing procedure: TMP Tested by (name + signature) ..... : Approved by (+ signature) ............ : Testing location/ address .......................: Testing procedure: WMT Tested by (name + signature) ..... : Witnessed by (+ signature) ........... : Approved by (+ signature) ........... : Testing location/ address .......................: Testing procedure: SMT Tested by (name + signature) ..... : Approved by (+ signature) ............ : Supervised by (+ signature) ........ : Testing location/ address ................ : Testing procedure: RMT Tested by (name + signature) ..... : Approved by (+ signature) ............ : Supervised by (+ signature) ........ : Testing location/ address .......................: TRF No. IEC62471A Page 3 of 20 Report No. : 11-1382-0470 Summary of testing: Tests performed (name of test and test clause): Testing location: In this test, the samples were applied to maximum forward current DC 90 mA. KTL (Korea Testing Laboratory) 222-13, Guro-3dong, Guro-gu, Seoul, 152-718, Korea Summary of compliance with National Differences: The sample(s) tested complies with the requirements of 62471:2006. See Attachment at the end of this report for compliance with European Group Difference and National Differences. Copy of marking plate: Item covered - TRF No. IEC62471A Page 4 of 20 Report No. : 11-1382-0470 Test item particulars ..................................................: Tested lamp ................................................................ : continuous wave lamps pulsed lamps Tested lamp system .....................................................: Lamp classification group (IEC standard) ....................: exempt risk 1 risk 2 risk 3 Lamp classification group (EN standard) .....................: exempt risk 1 risk 2 risk 3 Lamp cap .................................................................... : Bulb ............................................................................. : Rated of the lamp .........................................................: See page 1 Furthermore marking on the lamp................................: Seasoning of lamps according IEC standard ..............: Used measurement instrument ....................................: See page 15 Temperature by measurement .....................................: 22.3 °C Information for safety use .............................................: Not required Possible test case verdicts: – test case does not apply to the test object ............ : N/A – test object does meet the requirement .................. : P (Pass) – test object does not meet the requirement ............ : F (Fail) Testing: Date of receipt of test item............................................ : 2011-09-22 Date (s) of performance of tests................................... : 2011-10-11 until 2011-10-12 General remarks: The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Issuing testing laboratory. "(See Enclosure #)" refers to additional information appended to the report. "(See appended table)" refers to a table appended to the report. Throughout this report a comma (point) is used as the decimal separator. List of test equipment must be kept on file and available for review. General product information: - Measured CCT : 5747 K (STW7T16A) and 6058 K (STW8T16A) - Absulute Maximum Ratings Foward Current IF : 90 mA Power Dissipation Pd : 315 mW Operating Temperature Topr : -40 – +85 °C Storage Temperature Tstg : -40 – +100 °C TRF No. IEC62471A Page 5 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Result – Remark Verdict 4 EXPOSURE LIMITS 4.1 General P The exposure limits in this standard is not less than 0,01 ms and not more than any 8-hour period and should be used as guides in the control of exposure P Detailed spectral data of a light source are generally see clause 4.3 required only if the luminance of the source exceeds 4 . -2 10 cd m P 4.3 Hazard exposure limits P 4.3.1 Actinic UV hazard exposure limit for the skin and eye P The exposure limit for effective radiant exposure is . -2 30 J m within any 8-hour period P To protect against injury of the eye or skin from ultraviolet radiation exposure produced by a broadband source, the effective integrated spectral irradiance , ES, of the light source shall not exceed the levels defined by: P P The permissible time for exposure to ultraviolet radiation incident upon the unprotected eye or skin shall be computed by: P P 4.3.2 Near-UV hazard exposure limit for eye P For the spectral region 315 nm to 400 nm (UV-A) the total radiant exposure to the eye shall not . -2 exceed 10000 J m for exposure times less than 1000 s. For exposure times greater than 1000 s (approximately 16 minutes) the UV-A irradiance for . the unprotected eye, EUVA, shall not exceed 10 W m 2 . P The permissible time for exposure to ultraviolet radiation incident upon the unprotected eye for time less than 1000 s, shall be computed by: P P 4.3.3 Retinal blue light hazard exposure limit N/A To protect against retinal photochemical injury from see table 4.2 chronic blue-light exposure, the integrated spectral radiance of the light source weighted against the blue-light hazard function, B(λ), i.e., the blue-light N/A TRF No. IEC62471A Page 6 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Result – Remark Verdict weighted radiance , LB, shall not exceed the levels defined by: 4 N/A 4 N/A for t ≤ 10 s for t > 10 s 4.3.4 Retinal blue light hazard exposure limit - small source P Thus the spectral irradiance at the eye Eλ, weighted against the blue-light hazard function B(λ) shall not exceed the levels defined by: P P P 4.3.5 Retinal thermal hazard exposure limit P To protect against retinal thermal injury, the see table 4.2 integrated spectral radiance of the light source, Lλ, weighted by the burn hazard weighting function R(λ) (from Figure 4.2 and Table 4.2), i.e., the burn hazard weighted radiance, shall not exceed the levels defined by: P (10 μs ≤ t ≤ 10 s) 4.3.6 P Retinal thermal hazard exposure limit – weak visual stimulus N/A For an infrared heat lamp or any near-infrared source where a weak visual stimulus is inadequate to activate the aversion response, the near infrared (780 nm to 1400 nm) radiance, LIR, as viewed by the eye for exposure times greater than 10 s shall be limited to: N/A N/A 4.3.7 Infrared radiation hazard exposure limits for the eye N/A The avoid thermal injury of the cornea and possible delayed effects upon the lens of the eye (cataractogenesis), ocular exposure to infrared radiation, EIR, over the wavelength range 780 nm to 3000 nm, for times less than 1000 s, shall not exceed: N/A TRF No. IEC62471A Page 7 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Result – Remark Verdict N/A For times greater than 1000 s the limit becomes: N/A N/A 4.3.8 Thermal hazard exposure limit for the skin N/A Visible and infrared radiant exposure (380 nm to 3000 nm) of the skin shall be limited to: N/A N/A 5 MEASUREMENT OF LAMPS AND LAMP SYSTEMS P 5.1 Measurement conditions P Measurement conditions shall be reported as part of the evaluation against the exposure limits and the assignment of risk classification. P 5.1.1 5.1.2 5.1.3 Lamp ageing (seasoning) N/A Seasoning of lamps shall be done as stated in the appropriate IEC lamp standard. N/A Test environment N/A For specific test conditions, see the appropriate IEC lamp standard or in absence of such standards, the appropriate national standards or manufacturer’s recommendations. N/A Extraneous radiation No extraneous radiation Careful checks should be made to ensure that extraneous sources of radiation and reflections do not add significantly to the measurement results. 5.1.4 5.1.5 N/A N/A Lamp operation P Operation of the test lamp shall be provided in accordance with: P – the appropriate IEC lamp standard, or N/A – the manufacturer’ s recommendation P Lamp system operation Not lamp system N/A The power source for operation of the test lamp shall be provided in accordance with: N/A – the appropriate IEC standard, or N/A – the manufacturer’ s recommendation N/A TRF No. IEC62471A Page 8 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test 5.2 Measurement procedure P 5.2.1 Irradiance measurements P Minimum aperture diameter 7mm. P Maximum aperture diameter 50 mm. P The measurement shall be made in that position of the beam giving the maximum reading. P The measurement instrument is adequate calibrated. P 5.2.2 Radiance measurements P 5.2.2.1 Standard method P The measurements made with an optical system. P The instrument shall be calibrated to read in absolute radiant power per unit receiving area and per unit solid angle to acceptance averaged over the field of view of the instrument. P Alternative method P Alternatively to an imaging radiance set-up, an irradiance measurement set-up with a circular field stop placed at the source can be used to perform radiance measurements. P 5.2.2.2 5.2.3 Measurement of source size Result – Remark 4.7 mrad The determination of α, the angle subtended by a source, requires the determination of the 50% emission points of the source. 5.2.4 Pulse width measurement for pulsed sources Verdict P P Continuous lamp The determination of Δt, the nominal pulse duration of a source, requires the determination of the time during which the emission is > 50% of its peak value. N/A N/A 5.3 Analysis methods P 5.3.1 Weighting curve interpolations P To standardize interpolated values, use linear interpolation on the log of given values to obtain intermediate points at the wavelength intervals desired. 5.3.2 5.3.3 see table 4.1 P Calculations P The calculation of source hazard values shall be performed by weighting the spectral scan by the appropriate function and calculating the total weighted energy. P Measurement uncertainty TRF No. IEC62471A N/A Page 9 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Result – Remark The quality of all measurement results must be quantified by an analysis of the uncertainty. 6 Verdict N/A LAMP CLASSIFICATION For the purposes of this standard it was decided that the values shall be reported as follows: – for lamps intended for general lighting service, the hazard values shall be reported as either irradiance or radiance values at a distance which produces an illuminance of 500 lux, but not at a distance less than 200 mm – for all other light sources, including pulsed lamp sources, the hazard values shall be reported at a distance of 200 mm see table 6.1 P N/A P 6.1 Continuous wave lamps P 6.1.1 Except Group P In the except group are lamps, which does not pose See table 6.1 any photobiological hazard. The requirement is met by any lamp that does not pose: P – an actinic ultraviolet hazard (ES) within 8-hours exposure (30000 s), nor P – a near-UV hazard (EUVA) within 1000 s, (about 16 min), nor P – a retinal blue-light hazard (LB) within 10000 s (about 2,8 h), nor – a retinal thermal hazard (LR) within 10 s, nor P – an infrared radiation hazard for the eye (EIR) within 1000 s N/A 6.1.2 6.1.3 For IEC standard Risk Group 1 (Low-Risk) P P In this group are lamps, which exceeds the limits for the except group but that does not pose: N/A – an actinic ultraviolet hazard (ES) within 10000 s, nor N/A – a near ultraviolet hazard (EUVA) within 300 s, nor N/A – a retinal blue-light hazard (LB) within 100 s, nor – a retinal thermal hazard (LR) within 10 s, nor N/A – an infrared radiation hazard for the eye (EIR) within 100 s N/A Lamps that emit infrared radiation without a strong visual stimulus and do not pose a near-infrared retinal hazard (LIR), within 100 s are in Risk Group 1. N/A Risk Group 2 (Moderate-Risk) N/A TRF No. IEC62471A For EN standard P Page 10 of 20 Report No. : 11-1382-0470 IEC 62471 Clause 6.1.4 6.2 Requirement + Test Result – Remark Verdict This requirement is met by any lamp that exceeds the limits for Risk Group 1, but that does not pose: N/A – an actinic ultraviolet hazard (ES) within 1000 s exposure, nor N/A – a near ultraviolet hazard (EUVA) within 100 s, nor N/A – a retinal blue-light hazard (LB) within 0,25 s (aversion response), nor N/A – a retinal thermal hazard (LR) within 0,25 s (aversion response), nor N/A – an infrared radiation hazard for the eye (EIR) within 10 s N/A Lamps that emit infrared radiation without a strong visual stimulus and do not pose a near-infrared retinal hazard (LIR), within 10 s are in Risk Group 2. N/A Risk Group 3 (High-Risk) N/A Lamps which exceed the limits for Risk Group 2 are in Group 3. N/A Pulsed lamps N/A Pulse lamp criteria shall apply to a single pulse and to any group of pulses within 0,25 s. N/A A pulsed lamp shall be evaluated at the highest nominal energy loading as specified by the manufacturer. N/A The risk group determination of the lamp being tested shall be made as follows: N/A – a lamp that exceeds the exposure limit shall be classified as belonging to Risk Group 3 (HighRisk) N/A – for single pulsed lamps, a lamp whose weighted radiant exposure or weighted radiance does is below the EL shall be classified as belonging to the Exempt Group N/A – for repetitively pulsed lamps, a lamp whose weighted radiant exposure or weighted radiance dose is below the EL, shall be evaluated using the continuous wave risk criteria discussed in clause 6.1, using time averaged values of the pulsed emission N/A TRF No. IEC62471A Page 11 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Table 4.1 Spectral weighting function for assessing ultraviolet hazards for skin and eye Wavelength λ, nm Result – Remark Verdict P UV hazard function S (λ) Wavelength λ, nm UV hazard function S (λ) 200 0,030 313* 0,006 205 0,051 315 0,003 210 0,075 316 0,0024 215 0,095 317 0,0020 220 0,120 318 0,0016 225 0,150 319 0,0012 230 0,190 320 0,0010 235 0,240 322 0,00067 240 0,300 323 0,00054 245 0,360 325 0,00050 250 0,430 328 0,00044 254* 0,500 330 0,00041 255 0,520 333* 0,0004702 260 0,650 335 0,00034 265 0,810 340 0,00028 270 1,000 345 0,00024 275 0,960 350 0,00020 280* 0,880 355 0,00016 285 0,770 360 0,00013 290 0,640 365* 0,00011 295 0,540 370 0,000093 297* 0,460 375 0,000077 300 0,300 380 0,000064 303* 0,120 385 0,000053 305 0,060 390 0,000044 308 0,026 395 0,000036 310 0,015 400 0,000030 1 UV UV Wavelengths chosen are representative: other values should be obtained by logarithmic interpolation at intermediate wavelengths. * Emission lines of a mercury discharge spectrum. 1 TRF No. IEC62471A Page 12 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Table 4.2 Spectral weighting functions for assessing retinal hazards from broadband optical sources Wavelength nm 300 305 310 315 320 325 330 335 340 345 350 355 360 365 370 375 380 385 390 395 400 405 410 415 420 425 430 435 440 445 450 455 460 465 470 475 480 485 490 495 500-600 600-700 700-1050 1050-1150 1150-1200 1200-1400 TRF No. IEC62471A Result – Remark Blue-light hazard function B (λ) 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,01 0,013 0,025 0,05 0,10 0,20 0,40 0,80 0,90 0,95 0,98 1,00 1,00 0,97 0,94 0,90 0,80 0,70 0,62 0,55 0,45 0,40 0,22 0,16 [(450-λ)/50] 10 0,001 Verdict Burn hazard function R (λ) 0,1 0,13 0,25 0,5 1,0 2,0 4,0 8,0 9,0 9,5 9,8 10,0 10,0 9,7 9,4 9,0 8,0 7,0 6,2 5,5 4,5 4,0 2,2 1,6 1,0 1,0 [(700-λ)/500] 10 0,2 . 0,02(1150-λ) 0,2 10 0,02 P Page 13 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Table 5.4 Summary of the ELs for the surface of the skin or cornea (irradiance based values) Hazard Name Relevant equation Result – Remark Verdict P Wavelength range nm Exposure duration sec Limiting aperture rad (deg) EL in terms of constant irradiance -2 W•m Actinic UV skin & eye ES = ∑Eλ • S(λ) • ∆λ 200 – 400 < 30000 1,4 (80) 30/t Eye UV-A EUVA = ∑Eλ • ∆λ 315 – 400 ≤1000 >1000 1,4 (80) 10000/t 10 Blue-light small source EB = ∑Eλ • B(λ) • ∆λ 300 – 700 ≤100 >100 < 0,011 100/t 1,0 EIR = ∑Eλ • ∆λ 780 –3000 ≤1000 >1000 1,4 (80) 18000/t 100 0,75 Eye IR Skin thermal EH = ∑Eλ • ∆λ 380 – 3000 < 10 2π sr 20000/t 0,75 Table 5.5 Summary of the ELs for the retina (radiance based values) Hazard Name Relevant equation P Wavelength range nm Exposure duration sec Field of view radians EL in terms of constant radiance -2 -1 W•m •sr ) 0,011•√(t/10) 0,011 0,0011•√t 0,11 10 /t 6 10 /t 6 10 /t 100 6 Blue light LB = ∑Lλ • B(λ) • ∆λ 300 – 700 0,25 – 10 10-100 100-10000 ≥ 10000 Retinal thermal LR = ∑Lλ • R(λ) • ∆λ 380 – 1400 < 0,25 0,25 – 10 0,0017 0,011•√(t/10) 50000/(α•t ) 0,25 50000/(α•t ) Retinal thermal (weak visual stimulus) LIR = ∑Lλ • R(λ) • ∆λ 780 – 1400 > 10 0,011 6000/α TRF No. IEC62471A 0,25 Page 14 of 20 Report No. : 11-1382-0470 IEC 62471 Clause Requirement + Test Result – Remark Table 6.1 Emission limits for risk groups of continuous wave lamps Verdict P Emission Measurement Risk Action spectrum Symbol Units Exempt Limit Actinic UV SUV(λ) Near UV Blue light B(λ) Es W•m -2 0,001 EUVA W•m -2 10 LB W•m •sr -2 Blue light, small source B(λ) EB W•m Retinal thermal R(λ) LR W•m •sr Retinal thermal, weak visual stimulus** R(λ) LIR W•m •sr EIR W•m IR radiation, eye * ** 1) 1) -1 2) Limit Result Limit Result 1.31E-6 7.84E-8 0,003 - 0,03 - 1.16E-4 5.68E-5 33 - 100 - 10000 - 4000000 - 0.24 0.30 1,0 - 400 - 7.51E+3 8.93E+3 28000/α - 71000/α - 1) 1,0* -2 -1 -2 -1 28000/α = 5 833 346 1) 2) 1) 2) Mod risk Result 100 -2 -2 2) Low risk 6000/α - 6000/α - 6000/α - 100 - 570 - 3200 - Small source defined as one with α < 0,011 radian. Averaging field of view at 10000 s is 0,1 radian. Involves evaluation of non-GLS source 1) STW7T16A 2) STW8T16A TRF No. IEC62471A Page 15 of 20 Furthermore remarks: - Measuring Instrument Name Maker Model No. Spectrometer Bentham IDR300 Telescope Bentham TEL309 Cosine response diffuser Bentham D7 Quartz fiber bundle Bentham FOP-UV-1 Source profiler Bentham PSL-Source Profiler Illuminance meter Gigahertz-optik X1 TRF No. IEC62471A Report No. : 11-1382-0470 Page 16 of 20 .: Report No. : 11-1382-0470 IEC62471A - ATTACHMENT Clause Requirement + Test Result - Remark Verdict ATTACHMENT TO TEST REPORT IEC 62471 EUROPEAN GROUP DIFFERENCES AND NATIONAL DIFFERENCES Photobiological safety of lamps and lamps systems Differences according to ................ : EN 62471:2008 Attachment Form No. ..................... : EU_GD_IEC62471A Attachment Originator ................... : IMQ S.p.A. Master Attachment ......................... : 2009-07 Copyright © 2009 IEC System for Conformity Testing and Certification of Electrical Equipment (IECEE), Geneva, Switzerland. All rights reserved. 4 4.1 CENELEC COMMON MODIFICATIONS (EN) EXPOSURE LIMITS Contents of the whole Clause 4 of IEC 62471:2006 moved into a new informative Annex ZB Clause 4 replaced by the following: Limits of the Artificial Optical Radiation Directive (2006/25/EC) have been applied instead of those fixed in IEC 62471:2006 General First paragraph deleted TRF No. IEC62471A See appended Table 6.1 P Noted Page 17 of 20 Report No. : 11-1382-0470 IEC62471A - ATTACHMENT Clause Table 6.1 Requirement + Test Result - Remark Verdict Emission limits for risk groups of continuous wave lamps (based on EU Directive 2006/25/EC) P Emission Measurement Risk Action spectrum Symbol Units Exempt Low risk Limit Actinic UV SUV(λ) Near UV Es W•m -2 0,001 EUVA W•m -2 0,33 -2 Blue light B(λ) LB W•m •sr Blue light, small source B(λ) EB W•m Retinal thermal R(λ) LR W•m •sr 2) 1) -1 2) Result Limit Result 1.31E-6 7.84E-8 - - - - 1.16E-4 5.68E-5 - - - - 10000 - 4000000 - 400 - - 71000/α - - 3200 - 1) 0,01* -1 Limit 100 -2 -2 Result 1) 28000/α = 1) 5 833 346 0.24 0.30 1,0 7.51E+3 8.93E+3 28000/α 2) 1) 2) 545000 Retinal thermal, weak visual stimulus** R(λ) LIR -2 W•m •sr -1 TRF No. IEC62471A EIR 6000/α W•m -2 100 1) 2) 0.24 0.30 - 0,0017≤ α ≤ 0,011 - 0,011≤ α ≤ 0,1 IR radiation, eye Mod risk - 570 Page 18 of 20 Report No. : 11-1382-0470 IEC62471A - ATTACHMENT Clause * ** Requirement + Test Result - Remark Small source defined as one with α < 0,011 radian. Averaging field of view at 10000 s is 0,1 radian. Involves evaluation of non-GLS source 1) STW7T16A 2) STW8T16A NOTE The action functions: see Table 4.1 and Table 4.2 The applicable aperture diameters: see 4.2.1 The limitations for the angular subtenses: see 4.2.2 The related measurement condition 5.2.3 and the range of acceptance angles: see Table 5.5. TRF No. IEC62471A Verdict Page 19 of 20 Photographs <Fig. 1_ STW7T16A> <Fig. 2_ STW7T16A> TRF No. IEC62471A Report No. : 11-1382-0470 Page 20 of 20 <Fig. 3_ STW8T16A > <Fig. 4_ STW8T16A > TRF No. IEC62471A Report No. : 11-1382-0470