Lighting Cabinet, Multi-channel LED, Daylight & Blackbody Simulator, Image Evaluation, Camera Calibration, Visual Assessment
LEDMax
LEDMax is a trichromator that enables the estimation of an individual observer’s color matching functions using Maxwell’s matching method. It includes 18 LED light channels from which different triplets are selected and matched by the observer to a white standard light. From these matches, the system can estimate the observer’s personal LMS cone fundamentals and XYZ color matching functions.
- A side-by-side semi-circular matching setup that includes 2˚ and 10˚ fields of view
- Each side is illuminated by two spectrally tunable LED systems
- 18 multiple LEDs with center wavelengths ranging from 400 nm to 700 nm
- Both LMS and XYZ functions are reported
- Specifications
- Downloads
- FAQs
| LEDMax-P18 | |
| LED channels*1 | 18 channels |
| Spectral range | 400-700nm |
| LED channel drive method | Amplitude Modulation |
| Resolution*2 | 12bit (4096 steps dimmable for each channel) |
| Warm up time | 10 minutes |
| Paek Wavelength of LED (±5nm) | 405 415 432 441(Broad band) 449 461 475 508 526 546 549 576 595 606 636 662 675 706 |
| Observation circle size | 2° field of view：Φ17mm 10° field of view：Φ88mm |
| Electrical | 100-240V 50/60Hz 100W (max) |
| Connection | USB cable |
| Dimensions(L/W/H) | 246mm*290mm*315mm |
| Weight | 12 Kg |
| Scope of delivery | Light Source ×1, Replacement Lens Sets ×4 (Options: 2°, 4°, 6°, 8°; Default: 10°), Power Cord (1.8 meters) ×1, Dual-Ended Type-A USB Cable (USB 3.0 Male to Male, 1.5 meters) ×1, Licensed Software ×1 |
| Software | Single channel control(.DLL) |
*1：The number of different LED types.
*2：Only 4000 steps can be used because some steps are used for calibration at low luminances.
Downloads
FAQs
- What is LEDMax and what are its main functions?
LEDMax is a personalized color matching curve meter launched by THOUSLITE, a trichromator that enables the creation of custom observer color matching functions using the Maxwell method.
Core functions:
• Creating observer color matching functions using the Maxwell method
• 18 channels for creating multiple three-color combinations for color matching
• Generating LMS and XYZ color matching function results
• Side-by-side hemifield matching setup with 2° and 10° fields of view - What are the spectral channels and spectral range of LEDMax?
• LED spectral channels: 18 channels
• Spectral range: 400–700nm
• Drive method: Amplitude modulation drive
• Resolution: 12 bits per channel, 4096 levels (4000 levels usable) - What field-of-view settings does LEDMax have?
LEDMax provides side-by-side hemifield matching settings with 2° and 10° fields of view:
• 2° field of view: Suitable for small-angle color matching (within approximately 4°)
• 10° field of view: Suitable for large-angle color matching (above approximately 4°) - What color matching functions can LEDMax generate?
LEDMax can generate:
• LMS color matching functions: Based on the response functions of the human eye‘s L (long-wave), M (medium-wave), and S (short-wave) cone cells
• XYZ color matching functions: The foundation of the CIE standard colorimetric system, used for color measurement and calculation - What are the observation window dimensions of LEDMax?
• 2° field of view: Φ17mm
• 10° field of view: Φ88mm
• Replacement lens options: 2°, 4°, 6°, 8°, 10° (10° default) - What are the technical specifications of LEDMax?
• LED spectral channels: 18 channels
• Spectral range: 400–700nm
• Drive method: Amplitude modulation drive
• Resolution: 12 bits per channel, 4096 levels
• Warm-up time: 10 minutes
• LED peaks (±5nm): 405, 415, 432, 441, 449, 461, 475, 508, 526, 546, 549, 576, 595, 606, 636, 662, 675, 706
• Electrical specifications: 100-240V AC, 50/60Hz, max 100W
• Control method: USB data cable
• Overall dimensions: 246×290×315mm
Net weight: 12 kg - What is the Maxwell method and how does LEDMax use it?
The Maxwell method is a color matching experimental method proposed by physicist James Clerk Maxwell and is one of the fundamental experimental methods in color science.
LEDMax uses the Maxwell method by:
• Allowing observers to compare and match the appearance of two colors through a side-by-side hemifield matching setup
• Illuminating each side with two spectrally tunable LED systems
• Creating multiple three-color combinations for color matching through 18 channels
• Ultimately generating LMS and XYZ color matching function results to quantify individual color perception characteristics