Lighting Cabinet, Multi-channel LED, Daylight & Blackbody Simulator, Image Evaluation, Camera Calibration, Visual Assessment
LEDView Lighting Cabinet
THOUSLITE LEDView products are epoch-making lighting cabinets based on the multi-channel LED technology. It is specially developed for color and imaging industry, including textile, coating, plastics, printing, graphic arts, imaging etc.LEDView gives consistent viewing conditions for color assessmen, quality control, sensor evaluation, etc.By using a set of high power LEDs and our proprietary LEDNavigator-LV software, it can achieves the match to any desired SPD (Spectral Power Distribution), including daylight illuminant with best lighting quality. lt guarantees “what you see is what you measure“. LEDView products have four models, including LEDView-Portable (12 channels, general visual assessment), LEDView-C15 (15 channels, color and lighting research), LEDView-l14 (14 channels, camera evaluation & sensor calibration), and LEDView-H11 (11 channels, high intensity)
- Features
- Specifications
- Video
- Applications
- Downloads
- FAQs
Reproducing high quality daylight illuminantTo reproduce any phase of daylight with highest quality on the market in terms of Color Rendering Index (CIE Ra) 99 and Metamerism Index (MI) Grade A
Same light intensity for all LED simulated sourcesAll the simulated illuminants sources can have the same light intensity, or customer specified
Flicker free and high uniformityIt provides a uniform and flicker free lighting environment
Longer life time and excellent long term stabilityMuch longer lifetime compared to fluorescent technology, and optimized heat management guarantees excellent long term stability
Conforms to international standardsConforms to all major international standards, including ASTM D1729, ISO 3664 as well as DIN, AATCC and BSI standards
80 LED simulated sources, 2 fluorescent lamps(except LEDView-H11)LEDView hardware can save up to 80 LED sources, which can be switched via touch screen controller, and LEDNavigator-LV software can reprogram the LED sources in hardware
High intensity rangeLEDView-C15 and LEDView-I14 can achieve max >2500lux on the bottom plate, and LEDView-H11 can achieve max >12000lux on the bottom plate. The intensity of LED source and fluorescent is dimmable
Blackbody locus simulatorTo accurately reproduce a range of sources from tungsten and daylight, with customized CIE Ra and Duv
SPD MatchTo accurately reproduce any measured or imported SPD to record or reproduce any light you want. It is easy to spread SPD files between different locations for light communication
Single-channel controlArbitrarily control the intensity of each channel in LEDView to design any light wanted
Dynamic lightingProgrammable illuminant light sequence and interval
Fast & accurate feedbackMaintain the same light quality, compensating for age and variable environments with external micro-spectrometer
LED wavelength selection serviceProvide LED channel wavelength selection service from UV, VIS to NIR
1.CIE 13.3-1995, Method of Measuring and Specifying Colour Rendering Properties of Light Sources.
2.ISO 23603-2005 / CIE S 012/E, Standard method of assessing the spectral quality of daylight simulators for visual appraisal and measurement of colour.
3.ASTM D1729-2003, Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials.
4.ISO 3664-2009, Viewing conditions-Graphic technology and photography.
5.SDC Best Practice Guide-2011, Viewing Cabinets for the Visual Assessment of Surface Colour.
| LEDView – Portable V2 | LEDView – STD | LEDView – C15 | LEDView – I14 | LEDView – H11 | |
| Digital driving channels | 20 | 24 | 24 | 24 | 20 |
| LED channels*1 | 14 channels | 14 channels | 15 channels | 14 channels | 11 channels |
| Spectral range | 350-730nm | 380-730nm | 350~700 nm | 380~730 nm | 400~700 nm |
| LED channel drive method | Amplitude Modulation, AM(default) / Pulse-width modulation, PWM(customized) / AP*2 | ||||
| Resolution*3 | 10 bit (1024 steps dimmable for each channel) | ||||
| Warm up time | No | ||||
| Capacity | 80 light sources | 80 light source in LEDView hardware and can be switched via touch screen switch panel , unlimited in software | 80 light source in LEDView hardware and can be switched via touch screen switch panel , unlimited in software | 80 light source in LEDView hardware and can be switched via touch screen switch panel , unlimited in software | 80 light source in LEDView hardware and can be switched via touch screen switch panel , unlimited in software |
| Predefined illuminants*4 | Daylight Options: CIE D50，CIE Ra > 98 MIvis: A （<0.25） CIE D55，CIE Ra> 98 MIvis: A （<0.25） CIE D65，CIE Ra > 98 MIvis: A （<0.25） CIE D75，CIE Ra > 98 MIvis: A （<0.25） Others: A，CIE Ra>97 UV or customer specify Sources stored in the hardware can be reprogrammed or calibrated by Thouslite | Daylight Options (exclude UV): CIE D50，CIE Ra > 98 MIvis: A （<0.25） CIE D55，CIE Ra> 98 MIvis: A （<0.25） CIE D65，CIE Ra > 98 MIvis: A （<0.25） CIE D75，CIE Ra > 98 MIvis: A （<0.25） Others: A， CIE Ra>97 or customer specify Sources stored in the hardware can be reprogrammed or calibrated by Thouslite | Daylight Options: CIE D50，CIE Ra > 98 MIvis: A （<0.25） CIE D55，CIE Ra> 98 MIvis: A （<0.25） CIE D65，CIE Ra > 98 MIvis: A （<0.25） CIE D75，CIE Ra > 98 MIvis: A （<0.25） Others: A， CIE Ra>97 UV or customer specify Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV | Daylight Options (exclude UV): CIE D50，CIE Ra > 98 MIvis: A （<0.25） CIE D55，CIE Ra> 98 MIvis: A （<0.25） CIE D65，CIE Ra > 98 MIvis: A （<0.25） CIE D75，CIE Ra > 98 MIvis: A （<0.25） Others: A， CIE Ra>97 or customer specify Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV | Daylight Options (exclude UV): CIE D50，CIE Ra > 98 MIvis: A （<0.25） CIE D55，CIE Ra> 98 MIvis: A （<0.25） CIE D65，CIE Ra > 98 MIvis: A （<0.25） CIE D75，CIE Ra > 98 MIvis: A （<0.25） Others: customer specify Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV |
| Tunable range | – | CCT: 2000~20000K (Duv tolerance<±0.003) | |||
| Max illuminance | Default: 1500 lux or customized | Default: 1500 lux or customized | Default: 1500 lux Further adjust via software. Max up to 2500lux, depending on the illuminant | Illuminance adjustable via software. Max up to 12000lux for D50-D65 | |
| Short-term stability*5 | ΔCCT<±20K; ΔIlluminance <±1% | ||||
| Long-term stability*6 | ΔCCT<±50K; ΔIlluminance<±2% | ||||
| Fluorescent light (optional) | – | CWF (Default) TL84 (Default) TL83 | – | ||
| Fluorescent light tunable | – | Yes | – | ||
| Software instrument compatibility | – | – | Konica Minolta CL500A & CS-2000, THOUSLITE FS & FS-VIS-IR Spectrometer Jeti Specbos 1211UV spectroradiometer | ||
| Uniformity*7 | 80% | 85% | |||
| Interior color | Munsell N5 Munsell N7 (Default) | ||||
| Electrical | 100-240V 50/60Hz 54W (max) | 100-240V 50/60Hz，300W (max) | 100-240V 50/60Hz，360W (max) | ||
| Connection | Button switch panel | Touch screen switch panel | Touch screen switch panel, intensity dimmer for fluorescent, USB cable | Touch screen switch panel, USB cable | |
| External dimensions(L/W/H) | 470×410×450 mm | 705×580×654 mm | 1020×740×860 mm | 520×520×850 mm | |
| Viewing area(L/W/H) | 465×300×310 mm | 655×537×390 mm | 970×700×585 mm | 500×500×600 mm | |
| Weight | 10.5 Kg | 36 Kg | 60 Kg | 40 Kg | |
| Scope of delivery | Light source, diffuser, power cord, power adapter, SOP, accessories | Overhead luminarie, viewing cabinet, diffuser, power cord, power adapter, SOP, accessories | Overhead luminarie, viewing cabinet, diffuser, power cord, USB cable, software LEDNavigator-LV with dongle (optional), THOUSLITE FS spectrometer (optional) , USB storage(SOP, SDK*8 available on request), accessories | ||
| Software | – | – | Modules in software LEDNavigator-LV: 1. Blackbody locus simulator 2. SPD Match 3. Single channel control 4. Dynamic lighting 5. Fast & accurate feedback*9 | ||
*1：The number of LED kinds
*2：AP is the hybrid driving of AM and PWM. The frequency of PWM is from 0.1 Hz to 1000 Hz.
*3：Actually 1000 steps can be used because some steps for low luminance calibration.
*4：Light quality is measured with >20% power
*5：When set light source as D50 without warm up time under enviroment temperature 25°, short-term stability is measured during 24 hours and compared to average value.
*6：When set light source as D50 after 30 minutes warm up time under enviroment temperature 25°, long-term stability is measured during 90 days and compared to average value.
*7：Uniformity is measured when illuminance of light source is 1500 lx.
*8：Users can utilize the SDK to realized the functions of Dynamic lighting, Single channel control, Single LEDCube control.
*9：Users need to have the compatible instrument for measurements
Online Video
Applications
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2022-05-23 Lighting ResearchScope: Optimal lighting environment study (including office lighting, agricultural light recipe, medical lighting, museum lighting, food lighting, non-visual effect etc), color rendering study, whiteness index study, etc.Read More -
2022-05-23 Surface Color Visual Assessment LightingScope: Simulate standard illuminants (including D50, D65, D75, A ,etc) or user-defined light source for color visual assessment or color quality control in surface color industry, including textile, coating, plastics, printing, imaging, etc.Read More -
2022-05-23 Imaging & Sensor Evaluation LightingScope: Simulate various lighting environments to evaluate the performance of camera or sensors, including auto white balance test, color rendering test, auto exposure test, etc.Read More
FAQs
- What is LEDView and what are its main uses?
LEDView is an epoch-making lighting cabinet launched by THOUSLITE, based on multi-channel LED technology, specially developed for the color and imaging industry.
Main uses:
• Color evaluation in textile, coating, plastics, printing, graphic arts, and imaging industries
• Color quality control
• Ensuring consistent transmission of color standards throughout the supply chain - What Color Rendering Index (CRI) can LEDView achieve?
LEDView achieves a Color Rendering Index CIE Ra of 99, one of the highest levels among standard light cabinets on the market.The Metamerism Index MI reaches Grade A (the highest international standard).
- What international standards does LEDView comply with?
LEDView complies with all major international standards for visual evaluation:
• ASTM D1729: Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
• ISO 3664: Viewing conditions – Graphic technology and photography
• DIN, AATCC, BSI and other related standards - What standard light sources can LEDView simulate?
LEDView can:
• Accurately reproduce standard daylight illuminants: including D50, D65, D75
• Blackbody locus simulation: Accurately reproduce a range of sources from 2000K to 20000K
• 80 LED simulated sources: Hardware can store 80 LED simulated sources
• Any lighting scenario: Reproduce any measured or imported SPD - What are the luminance and uniformity of LEDView?
LEDView provides:
• LEDView-C15 and LEDView-I14: Maximum illuminance >2500 lux on the bottom plate
• LEDView-H11: Maximum illuminance >12000 lux on the bottom plate
• Dimmable luminance: Both LED simulated sources and optional fluorescent lamps support luminance adjustment
• Uniform and flicker-free lighting environment - What versions of LEDView are available and what are their respective applications?
LEDView is available in five versions:
• LEDView-Portable V2: 20 channels, portable, general visual assessment
• LEDView-STD: 24 channels, surface color, textile/printing applications
• LEDView-C15: 24 channels, lighting and color research and evaluation
• LEDView-I14: 24 channels, image testing and sensor calibration
• LEDView-H11: Ultra-high luminance applications - How many light sources can LEDView hardware store?
LEDView hardware can store 80 LED simulated sources, which can be switched via the touch screen controller.LEDNavigator-LV software can reprogram the light sources in hardware, with unlimited storage capacity in the software.
- Does LEDView support dynamic lighting and single-channel control?
Yes:
• Single-channel control: Arbitrarily control the intensity of each channel in LEDView to design any desired light
• Dynamic lighting: Programmable illuminant light sequence and interval - How does LEDView ensure long-term stability?
LEDView ensures long-term stability through the following mechanisms:
• Fast and accurate feedback system: Maintains light quality by compensating for aging and variable environments with an external micro-spectrometer
• Compensates for LED aging and variable environments
• Optimized heat management, with significantly longer lifetime than traditional fluorescent lamps - What are the advantages of LEDView compared to traditional fluorescent light cabinets?
Advantages of LEDView:
• Color Rendering Index: CRI Ra up to 99, traditional fluorescent typically <90
• Metamerism Index: MI Grade A, traditional fluorescent typically higher
• Number of light sources: 80 LED simulated sources storable, traditional fluorescent only a few fixed types
• Spectral tunability: Can reproduce any SPD, traditional fluorescent not tunable
• Service life: Significantly longer than traditional fluorescent lamps
• Warm-up time: No warm-up time, instantly stable
• Luminance adjustment: All light sources are dimmable - Can the LED wavelengths in LEDView be customized or replaced?
For the flagship LEDView models, THOUSLITE provides LED channel wavelength selection service from UV, VIS to NIR.Please communicate with THOUSLITE or your authorized distributor to confirm the required wavelengths before placing an order.
- What operating systems does the LEDNavigator-LV software support?
LEDNavigator-LV currently only supports Windows operating systems, including Win XP, Win7, Win8, and Win10.
- Why does LEDNavigator-LV sometimes fail to detect LEDView?
If this occurs, first check whether the hardware switch on the LEDView device is turned on, whether the USB data cable and software dongle are inserted into the computer, and whether the LEDView driver has been installed for first-time use. Then restart both the LEDView hardware and the LEDNavigator-LV software. If the issue persists after multiple restarts, please contact THOUSLITE or your authorized distributor.
- Why does the measured matching light source differ more from the target light source after Feedback?
This generally occurs for two reasons:
① Unnecessary feedback: When the initial light recipe is already very close to the target value—for example, when the color temperature difference between the measured value and the target value is less than 50K—performing Feedback may worsen the result.
② Feedback uses the most recent measurement as the baseline. Please ensure a measurement is taken before performing Feedback. - What if a required function is not available in the LEDNavigator-LV software?
THOUSLITE provides software customization services.Please contact THOUSLITE or your authorized distributor for details.