Lighting Cabinet, Multi-channel LED, Daylight & Blackbody Simulator, Image Evaluation, Camera Calibration, Visual Assessment
LEDSSF Camera Testing Equipment
LEDSSF is a device to characterize a camera’s Spectral Sensitivity Function (SSF) or Quantum Efficiency (QE). It also provides color correction metrics (CCM) for any combination of illuminant/materials.
- 19 LED channels for sampling a camera’s spectral sensitivity curve.
- High illumination uniformity (95%) at the center region (5 cm diameter)
- CCM devised to cover multiple illuminants on a comprehensive selection of materials
- Materials include coatings, textiles, printed materials, plastics, and skins
- 4 types: 1) all CIE illuminants, 2) laboratory sources, 3) commercial sources, and 4) custom sources
- Specifications
- Downloads
- FAQs
| LEDSSF | |
| LED channels*1 | 18 channels |
| Spectral range | 400-700nm |
| LED channel drive method | Amplitude Modulation |
| Resolution*2 | 10 bit (1024 steps dimmable for each channel) |
| Warm up time | No |
| Capacity | 80 light source in LEDSSF hardware, unlimited in software |
| Short-term stability*3 | ΔLuminance <±0.5% |
| Long-term stability*4 | ΔLuminance <±1.5% |
| Software instrument compatibility | Konica Minolta CL500A & CS-2000, THOUSLITE FS & FS-VIS-IR Spectrometer Jeti Specbos 1211UV spectroradiometer |
| Electrical | 100-240V, 50/60Hz, 200W (max) |
| Operating ambient temperature | 0-30°C |
| Connection | USB cable |
| light emitting surface | Circle: diameter 3cm (by customerization up to diameter 8cm) |
| Uniformty | diameter 3.6cm>95% |
| Dimensions(L/W/H) & Weight | 120×120×120 mm，2.1 kg |
| Interior color | LEDSSF ：black(Default)，L type of mixing cavity：white(Default) |
| Scope of delivery | LEDSSF light source, power cord, USB cable |
| Supplementary accessories | Measurement device, customerized aluminium support |
| Software (optional) | – |
*1：The number of LED kinds
*2：Actually 1000 steps can be used because some steps for low luminance calibration.
*3：When set light source without warm up time under enviroment temperature 25°, short-term stability is measureed during 24 hours and compared to average value.
*4：When set light source after 30 minutes warm up time under enviroment temperature 25°, long-term stability is measureed during 90 days and compared to average value.
FAQs
- What is LEDSSF and what are its main functions?
LEDSSF is a camera spectral sensitivity function meter launched by THOUSLITE that can characterize the Spectral Sensitivity Function (SSF) or Quantum Efficiency (QE) of a camera.
Core functions:
• Spectral response curve characterization: Sampling camera spectral response curves through 19 LED channels
• Color Correction Matrix (CCM): Providing CCM for any light source/material combination
• Multi-material coverage: Materials include coatings, textiles, printing materials, plastics, and skin
• 4 light source types: All CIE light sources, laboratory light sources, commercial light sources, and custom light sources - What are the spectral channels and spectral range of LEDSSF?
• LED spectral channels: 18 channels
• Spectral range: 400–700nm
• Drive method: Amplitude modulation drive
• Resolution: 10 bits per channel, 1024 levels (1000 levels usable) - What is the exit surface uniformity of LEDSSF?
• Exit surface size: 3cm diameter (customizable up to 8cm)
• Uniformity: >95% (3.6cm diameter)
• Light-emitting area: 5cm diameter light-emitting area with 95% high uniformity - What types of light sources can LEDSSF measure?
LEDSSF supports 4 types of light sources:
• All CIE light sources: International Commission on Illumination standard light sources
• Laboratory light sources: Commonly used laboratory lighting sources
• Commercial light sources: Commonly used commercial lighting sources
• Custom light sources: User-defined light sources - What measurement instruments are compatible with LEDSSF?
LEDSSF is compatible with the following measurement instruments:
• THOUSLITE FS spectrometer
• THOUSLITE FS-VIS-IR spectrometer
• Jeti Specbos 1211/1211UV spectroradiometer
• Konica Minolta CL500A
• Konica Minolta CS2000 - What are the stability and accuracy of LEDSSF?
• Warm-up time: None
• Short-term stability: Luminance < ±0.5% (within 24 hours, room temperature 25°C)
• Long-term stability: Luminance < ±1.5% (within 90 days, 30 minutes warm-up, room temperature 25°C)
• Storage capacity: Hardware can store 80 name-editable light sources; software unlimited - What customization options are available for LEDSSF?
LEDSSF offers the following customization options:
• Exit surface size: 3cm diameter (customizable up to 8cm)
• Housing color: LEDSSF: Black (default), L-shaped mixing chamber: White (default)
• Additional charge accessories: Measurement instruments, custom brackets
• Supporting software: Optional - What is a Color Correction Matrix (CCM) and how does LEDSSF provide it?
A Color Correction Matrix (CCM) is a mathematical transformation matrix used for color correction, which can correct color data captured by a camera under different light sources to standard color values.
LEDSSF can provide:
• Color Correction Matrix (CCM) for any light source/material combination
• Material coverage: Coatings, textiles, printing materials, plastics, and skin
• Multi-light source integration: CCM applicable to comprehensive materials covering multiple light sources