LED Tester BTS256-LED

Transcription

1 1 LED Tester BTS256-LED The BTS256-LED tester is one of the most compact light measurement devices with integrated integrating sphere for high accuracy measurement of luminous flux, spectral and color data of small size assembled and unassembled LEDs in the visible spectrum. It can be used in mobile or in stationary applications. Innovative technology improvements enable measurement uncertainties at same level to that of more complex and expensive lab based instruments. Its competitive price as a stand alone system or combined with optional accessory components make it an ideal low budget solution for LED assembly companies, manufacturing production and quality control, reference standard in the light measurement laboratory, field service and for training purposes. With the accessories supplied the BTS256-LED tester s application field can be extended for measurement of illuminance, luminous intensity, luminous flux of large size lamps, luminous intensity spatial distribution and LED binning by luminous flux and color. The S-BTS256 software fits all your needs in lab or in fabrication. It supports complete control of your BTS256 device and available peripheral equipment like Gigahertz-Optik s Light Power Supplies (LPS), goniometer (GBD) and different kinds of integrating spheres (IS). It contains different routines for data acquisition, several numerical and graphical displays for visualization and different export options (ASCII and Microsoft Excel). For special needs, Gigahertz-Optik GmbH offers software development kits. SDKs are available for National Instruments LabView, Microsoft.NET, C/C++. This makes it easy for you to embed the BTS256 measurement device within your own software. S-BTS256 Software for the BTS256-LED tester

2 BTS256-LED with build-in Integrating Sphere for Luminous Flux, Spectrum and Color 2 The BTS256-LED design includes a light weight aluminum housing and a compact size integrating sphere with rugged ODM98 1) type coating. Build-in Integrating Sphere To avoid risk of contamination the sphere input is sealed with a 3D formed window. The light input is a 10mm input diameter conical type adapter placed over the LED to emit all light within the conical adapter. The adapter with it s bayonet type mount is exchangeable with other port sizes from 6mm to 14mm. Measurement of Assembled LEDs To compensate for self-absorption of the test sample an auxiliary lamp is available which is remotely operated in the substitution correction routine of the software supplied. Gigahertz-Optik s state of the art BTS256-P bitechnology light sensor offers a fine photometric response photodiode for accurate wide dynamic range flux detection. Photometric Detector Beside the integral detector a compact low stray light spectrometer is installed. It s 256 pixel CMOS sensor enables spectral distribution measurements with a 5nm bandwidth as recommended for color measurements. Spectral Measurements A remote controlled shutter is provided for on-line offset compensation of the diode array through dark signal measurement with measurement time identical dark measurements. The cone adapter must be placed over the LED in that way that the total flux of the LED is collected into the BTS256_LED for the measurement. The measurement data of the diode array detector is used for spectral flux in W/nm, peak intensity, dominant wavelength, xy and u v color coordinates, color temperature and color rendering index (CRI). Color Measurements The spectral data is also used for on-line correction of the spectral mismatch error of the photometric detector to simulate a better CIE spectral V( ) response. The fast response time of the integral detector can be used in data logger applications. For improved measurements in applications with low frequency modulated light or light with low frequency AC components the BTS256 can be self synchronized to the frequency of the light signal by its fast integral sensor (photodiode). Graphical display of test sources spectrum. Can be enlarged to full screen size. S-BTS256 Software

3 4 BTS256-LED-DA Option for Illuminance, Luminous Intensity, Spectrum and Color In many applications single LED or LED matrix are integrated into luminaires for general lighting. The light output of these devices is typically specified in illuminance as a function of the distance between luminaire and the surface under illumination. Lighting designers and architects involved in display, outdoor, landscaping or interior lighting are usually interested in illuminance levels. Illuminance in lx With the BTS256-LED-DA adapter the BTS256-LED tester can be set-up as an illuminance and luminous color meter to support the complete production process of the luminaire manufacturer. The BTS256-LED- DA adapter with its 20mm diameter diffuse window and bayonet style mount is quickly and simply attached to the BTS256-LED tester and interchangeable with the cone adapter supplied. After selecting the illuminance measurement mode in the software the instrument is ready to act as a lux meter for spot sources. Luminous Intensity in cd Beside illuminance the BTS256-LED tester with BTS256-LED-DA illuminance adapter can be used for the measurement of luminous intensity if the distance between source and light meter is known and if the light source fulfill the requirements of a spot source. In the luminous intensity mode the S-BTS256-LED software enable the user to enter the measurement distance. The luminous intensity is calculated by the illuminance measurement and the square of the distance. Luminous Color Diffuser Windows with Bayonet Mount for simple exchange to Cone Adapter Beside illuminance and luminous intensity all relevant luminous color data is measured and displayed. The BTS256-LED s Bi-technology sensor including photometric photodiode and diode array spectrometer ensure accurate results independent of the light source. Distance Source Illuminance Traceable Calibration 1m 2000lx Calibration is performed by Gigahertz-Optik s calibration laboratory for light measurement quantities against calibration standards traceable to national and international metrology laboratories. Re-calibration is recommended every 12 months. 2m 500lx 5m 80lx Example of the typical way to specify the distance dependent Illuminance of luminaires

4 Specifications 17 Sensor Design Integral Sensor Spectral Sensor Integrating Sphere Microprocessor Power Remote interface Software BiTech Sensor with fine photometric matching photodiode and 256 pixel CMOS photodiode array. Integrated shutter for remote controlled offset compensation. integration time setting from 100µs to 6s. Seven (7) measurement ranges with correction range transcendent offset correction. 12Bit SAE ADC spectral response with fine CIE photometric matching. On-line correction by spectral data luminous flux resolution lm; Max luminous flux value lm spectral range 380 to 750nm. Pixel resolution 1.5nm. Optical resolution 5nm integration time setting from 5.2ms to 30s. remote operated shutter for dark signal measurements with identical integrating time than that of the measurement. Delay 100ms open state, 100ms close state luminous flux measurement range (white light): minimum signal 10mlm (with longest integration time) maximum signal 1100lm (with shortest integration time) luminous Flux calibration uncertainty +/-8% peak wavelength: +/- 1nm dominant wavelength: +/- 1nm x, y reproducibility: Standard Illuminant A +/ , LEDs +/ at 2000cts Peakpower x, y uncertainty: Standard Illuminant A +/-0.005, LED +/ average, max +/-0.01 CCT Measurement range: 1700 to K CCT: Standard Illuminant A 50K; LED up to +/-6% depending of LED spectrum color Rendering Index Ra and R1 to R15 50mm diameter with ODM98 coating. Sealed window at sphere output port. cone adapter with rugged type ODP97 coating. Measurement aperture diameter 10mm. white LED auxiliary lamp remote controlled cone adapter exchange effect within +/- 0.5% xy DUT position error within cone adapter max. +/- 2% z axis DUT position error within cone adapter max. +/-2% (1 to 11mm) 16Bit, 25ns instruction cycle time 5VDC to 7VDC, 250mA peak during aux lamp capacitance loading RS232: Baud, 8D, IS, N; 9PIN SUBD connector with PIN for DC voltage USB to RS232 converter with DC voltage transfer function from PC USB device set-up for auto or manual ranging with set-able integrating time, on-line or single offset compensation, frequency synchronization measurement modes: CW, manual and automatic data logger measurement data: Luminous intensity, Color Temperature, xy, u v Color coordinates, Dominant wavelength, CRI color rendering Index (R a, R 1 - R 14 ), Peak wavelength, Peak Intensity graphical displays: Emission spectrum, CIE 1931 (x,y) and CIE 1976 (u, v ) chromaticity diagram measurement data storage in ASCI format Temperature operating: 10 to 30 C Storage: -10 to 50 C Dimensions/Weight 160mm (6.3 in) L x 85mm (3.3) W x 60mm (2.4 in) H. Weight: 500g (1.1 lb) Carrying case BTS256-LED with build-in Integrating Sphere hard case, 333 x 280 x 70mm, 650g

5 18 BTS256-LED with optional Diffuser Window BTS256-LED-DA Integral Sensor Spectral Sensor Cosine Diffuser Software illuminance resolution 0.2 lx; Max illuminance value lx iiluminance measurement range (white light): minimum signal 40 lx (with longest integration time) maximum signal lx (with shortest integration time) illuminance calibration uncertainty +/-4% 20mm diameter diffuse quartz glass in adapter with bayonet style mount specified cosine corrected field of few 60 total cosine matching 5 % within the specified F.O.V. measurement data: Illuminance, Luminous Intensity, Color Temperature, xy, u v Color coordinates, Dominant wavelength, CRI color rendering Index (R a, R 1 - R 15 ), Peak wavelength, Peak Intensity Luminous Flux Range Integral Sensor ISD-21-V01 Luminous flux resolution lm. Max luminous flux lm 1) 2) ISD-50-V01 Luminous flux resolution 0.01 lm. Max luminous flux lm 1) 2) ISD-50HF-V01 Luminous flux resolution 0.01 lm. Max luminous flux lm 1) 2) ISD-50HF-V02 Luminous flux resolution 0.01 lm. Max luminous flux lm 1) 2) ISD-100HF-V01 Luminous flux resolution 0.04 lm. Max luminous flux lm 1) 2) ISD-100HF-V02 Luminous flux resolution 0.04 lm. Max luminous flux lm 1) 2) ISD-100HFTO-V02 Luminous flux resolution 0.04 lm. Max luminous flux lm 1) 2) Luminous Flux Range Spectral Sensor ISD-21-V01 ISD-50-V01 ISD-50HF-V01 ISD-50HF-V02 ISD-100HF-V01 ISD-100HF-V02 ISD-100HFTO-V02 BTS256-LED with optional Diffuser Window BTS256-LED-DA 1) The max measureable luminous flux values may be limit in application by thermal radiation of the source under test (DUT) effecting too high operation temperature of the integrating sphere 2) The min an max measureable flux value are out of the range of the spectral sensor. Spectral measurements, color data calculation and a(z) correction are only possible within the measurement range of the spectral sensor Luminous flux resolution 0.35 lm; Max luminous flux lm Luminous flux resolution 1.2 lm; Max luminous flux lm Luminous flux resolution 1.2 lm; Max luminous flux lm Luminous flux resolution 1.2 lm; Max luminous flux lm Luminous flux resolution 3 lm; Max luminous flux Luminous flux resolution 3 lm; Max luminous flux Luminous flux resolution 3 lm; Max luminous flux Luminous flux calibration uncertainty +/-8%

6 19 GB-GD-360-V01 Goniometric Bench Setting Range phi axis (horizontal) +/-90. Resolution 0.1. Reproducibility 0.2 BTS256-LED Luminous Intensity Range Integral Sensor Luminous Intensity Range Spectral Sensor theta axis (axial) +/-180. Resolution 0.2. Reproducibility 0.4 z axis (position of test sample to the goniometric reference axis) 100mm rough. Fine adjustment 5mm with <0,1mm resolution maximum load 1kg LED tester with BTS256-LED-DA diffuser window luminous intensity resolution xx cd. Maximum measureable luminous intensity xx cd minimum signal white light xx cd (with longest integration time) maximum signal white light xx cd (with shortest integration time) Calibration illuminance calibration uncertainty +/-4% Software BTS256-LED with optional Goniometric Bench GB-GD-360-V01 measurement data: Illuminance, Color Temperature, xy, u v Color coordinates, Dominant wavelength, CRI color rendering Index (R a, R 1 - R 14 ), Peak wavelength, Peak Intensity, luminous intensity at fix angle, luminous intensity distribution with set-able sequence, total flux and effective luminous flux calculation graphical displays: Emission spectrum, CIE 1931 (x,y) chromaticity diagram, 2D and 3D polar coordinate diagram, measurement data storage in ASCI format, IES and EULUMDAT data format

7 20 Model Item No.: Description Model UMBB-210-BTS256-LED UMBB-500-BTS256-LED ISD-50HF-V01 ISD-50HF-V02 ISD-100HF-V01 ISD-100HF-V02 Item No.: Description Purchasing Information BTS256-LED Measurement device with BTS256-LED-CA10 cone adapter, RS232/USB adapter, hard case, operation manual, software CD, calibration certificate with data user CD Re-Calibration: K-BTS256-LED-I Re-calibration of BTS256-LED tester with 10mm cone adapter Accessory: BTS256-LED-CA Cone adapter with 5mm diameter BTS256-LED-CA Cone adapter with 6mm diameter BTS256-LED-CA Cone adapter with 7mm diameter BTS256-LED-CA Cone adapter with 8mm diameter BTS256-LED-CA Cone adapter with 9mm diameter BTS256-LED-CA Cone adapter with 10mm diameter BTS256-LED-CA Cone adapter with 11mm diameter BTS256-LED-CA Cone adapter with 12mm diameter BTS256-LED-CA Cone adapter with 13mm diameter BTS256-LED-CA Cone adapter with 14mm diameter Model Item No.: Description BTS256-LED with build-in Integrating Sphere BTS256-LED with optional Diffuser Window BTS256-LED-DA BTS256-LED-DA Diffuser window adapter with bayonet type mount. Calibration in illuminance (lx) K-BTS256-LED-DA-I Re-calibration of BTS256-LED tester with BTS256-LED-DA adapter in illuminance [lx] und spectral responsivity BTS256-LED with optional Diffuser Window BTS256-LED-DA Integrating sphere with 210 mm diameter with 50mm pot reducer, detector port, baffle, auxiliary lamp and stand. Calibration with BTS256-LED tester optional. Integrating sphere with 500mm diameter with 80mm pot reducer, detector port, baffle, auxiliary lamp and stand. Calibration with BTS256-LED tester optional Integrating sphere with 500 mm diameter in hinge frame. Height adjustable sample holder, detector port, baffle and auxiliary lamp. Calibration with BTS256-LED tester optional Integrating sphere with 500 mm diameter in hinge frame. Height adjustable sample holder, 127mm port with port plug, detector port, auxiliary lamp. Calibration with BTS256-LED tester optional Integrating sphere with 100 mm diameter in hinge frame. Height adjustable sample holder, detector port, baffle and auxiliary lamp. Calibration with BTS256-LED tester optional Integrating sphere with 1000 mm diameter in hinge frame. Height adjustable sample holder, 254 mm port with port plug, detector port, auxiliary lamp. Calibration with BTS256-LED tester optional.

8 21 Purchasing Information Auxiliary Lamp Power Supply BTS256-LED-ALP Power supply for external auxiliary lamp. On/Off remote operation via BTS256-LED-C USB adapter. DC output: 0-16V, 0-10A. Switchable for 115V or 230V at 50/60Hz. Calibration K-BTS256-LED-U-I Re-calibration K-BTS256-LED-I K-BTS256-LED-U-I Calibration and re-calibration of BTS256-LED with integrating sphere Re-calibration of BTS256-LED tester with cone adapter Calibration and re-calibration of BTS256-LED with integrating sphere BTS256-LED_BTS256-LED-DA with optional Goniometric Bench GB-GD-360-V01 Model Item No.: Description GB-GD-360-V Photogoniometer for LEDs and LED lumiares for operation with BTS256- LED Tester S-BTS256-GB Re-Calibration: Software K-BTS256-LED-DA-I Re-calibration of BTS256-LED tester with BTS256-LED-DA adapter in illuminance [lx] und spectral responsivity Model BTS256-LED LED Tester and LPS-20 LED Power Supply for Single Flash LED Binning Item No.: Description LPS ED Electronic device with LPS LED power source in 1/2 19 width bench top housing. Front side connectors for test LED and bts256-led. USB interface for remote control operation V/50-60Hz Equipment for individual measurement device set-up for LED binning: Model BTS256-LED-C-BNC Item No.: Description USB/RS232 converter adapter for BTS256-LED tester with TTL level high/ low trigger output LPS RM Precise LED power supply with linear controller for LED and OLED operation. DC voltage must be supplied Option for LPS-20 BTH-19 BTH-19Z Bench-top housings from 1/2 19 inch to 1/1 19 inch width (42TE to 84TE), Rack-mount version ACDC power supply in 19 inch rack mount housing (3HE, 21 or 28TE), different voltage and power versions