What are the spectral range and color temperature range of LEDTrans?

Technical specifications of LEDTrans: • LED spectral channels: 14 channels • Spectral range: 380–730nm • Drive method: Amplitude modulation drive • Channel resolution: 10 bits per channel, 1024 levels • Warm-up time: None • LED lifetime: >10,000 hours • Color temperature range: 2000K–20000K • CIE Ra range: 80–100

What are the illuminance output and uniformity of LEDTrans?

LEDTrans provides: • Maximum illuminance: Up to 18,000 lux (exit surface) • Dimmable illuminance: Minimum 1% of maximum illuminance • Exit surface uniformity: >96% (exit surface 280×210mm) • Flicker-free: Based on AM drive method

What light sources can LEDTrans simulate?

LEDTrans can achieve: • High-quality daylight simulation: D75, D65, D50, CIE Ra > 98, MI Grade A • Blackbody locus simulation: Accurately reproduce sources from 2000K to 20000K • A light source: CIE Ra > 97 • Any Spectral Power Distribution (SPD): Reproduce any measured or imported SPD

Does LEDTrans support dynamic lighting and single-channel control?

Yes: • Single-channel control: Arbitrarily adjust the intensity of each channel • Dynamic lighting: Programmable light sequence and interval • Fast light source switching: No warm-up time, instantly stable

How does LEDTrans ensure long-term stability?

LEDTrans ensures long-term stability through: • Fast and accurate feedback system: Automatic feedback via external spectrometer • Optimized heat management system • Short-term repeatability: D65 < ±10K, Illuminance < ±0.5% • Long-term repeatability: D65 < ±25K, Illuminance < ±1.5%

Does LEDTrans provide an SDK development kit?

Yes. LEDTrans provides SDK in different programming languages, allowing customers to further integrate it into their own control software.

What are the main application areas of LEDTrans?

LEDTrans is mainly used in: • Optical imaging laboratories: Test chart illumination and camera calibration • Camera and sensor performance testing: White balance testing, color reproduction testing, resolution testing, etc. • Image calibration: Standardized lighting environments for imaging systems • Industrial inspection: Visual inspection lighting in smart manufacturing

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Home / Products / LEDTrans Transparent Uniform Lighting Box

LEDTrans Transparent Uniform Lighting Box

Q: What is LEDTrans and what are its main uses?

LEDTrans is an innovative transparent uniform lighting box launched by THOUSLITE, based on multi-channel LED technology.It is specially developed for test chart illumination and camera calibration. Core uses: • Test chart illumination • Camera and sensor calibration • Standardized lighting environments for optical imaging laboratories

Q: Does LEDTrans provide an SDK development kit?

Yes. LEDTrans provides SDK in different programming languages, allowing customers to further integrate it into their own control software.

Q: What are the main application areas of LEDTrans?

LEDTrans is mainly used in: • Optical imaging laboratories: Test chart illumination and camera calibration • Camera and sensor performance testing: White balance testing, color reproduction testing, resolution testing, etc. • Image calibration: Standardized lighting environments for imaging systems • Industrial inspection: Visual inspection lighting in smart manufacturing

THOUSLITE LEDTrans is innovative transparent uniform lighting box based on the multi-channel LED technology, and it is a specially developed for test chart illumination and camera calibration. By using a set of carefully selected high power LED and our proprietary LEDNavigator-LT software, it can achieves the match to any desired SPD (Spectral Power Distribution) of light source just in one device, especially for standard daylight illuminant with highest light quality on the market. High power LEDs can easily achieve up to 18000lux of simulated source on the illumination surface. Excellent optical design guarantees >96% high uniform of illumination surface (280x210mm) Optimized heat management and feedback function ensure high stable light output, compensating light quality fluctuation for LED ages and variable environment. SDKs in different language are also available for customer to integrate to its own operating software

Features
Specifications
Video
Applications
Downloads
FAQs

Reproducing high quality daylight illuminant
To 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
Blackbody locus simulator
To accurately produce a range of sources from tungsten to daylight varying Correlated Color Temperature (CCT) from 2000K to 20000K with tunable CIE Ra 0~100 and tunable Duv -0.02~+0.02. One device reproduces all light sources, resulting in high flexibility and less maintenance cost
SPD match
To accurately reproduce any measured or imported SPD to record any light you want. It is easy to spread SPD files between different locations for light communication
High light intensity output and luminance adjustable
High power SMD LEDs, together with the software, guarantees high light intensity output (max up to 18000lux), and the light intensity is dimmable while keeping the same light quality
Fast change between illuminants and no warm up time
Same illuminant properties during illuminant switch, and no warm up time & instantly stable
Single-channel control
Arbitrarily control the intensity of each channel in LEDTrans to design any light wanted
Dynamic lighting
Programmable light sequence and interval
Fast & accurate feedback
Maintain the same light quality, compensating for age and variable environments with external micro-spectrometer. It is much more consistent over conventional lighting
User-friendly software, SDK available
User-friendly software LEDNavigator allow users to design light according to different optimization purposes, and it can be further customized, SDK available on request
Flicker free & high uniform
Based on AM driven method, it provides an absolutely flicker free light output. Excellent optical design guarantees >96% high uniform on 280×210mm emitting surface
Longer life time and excellent long term stability
Much longer lifetime compared to fluorescent technology, and optimized heat management resulting in excellent long term stability
LED channel wavelength selection service
Provide LED channel wavelength selection service from UV, VIS to NIR

1.CIE 13.3-1995, Method of Measuring and Specifying Colour Rendering Propertes of Light Source
2.ISO 23603-2005 / CIE S 012/E, Staoda「d method of assessing the spectral quality of ,daylight simulators for visual appraisal and measurement of colour.

*LED channels^1**	14 channels
LED channel drive method	Amplitude Modulation
Spectral range	380-730 nm
*Resolution^2**	10 bit (1024 steps dimmable for each channel)
Warm up time	No
Lifetime	>10,000 hours
*Predefined illuminants^3**	D75, D65, D50, A CIE Ra 99, MIvis: Grade A (<0.25)
Tunable range	CCT: 2000~20000K CIE Ra:80~100
Luminous emittance	Max. up to 18000lux, min down to 180lux, depending on illuminant, can be combined with a neutral density filter
Uniformity	Illumination surface (D280, 280×210mm), >96%
*Short-term stability^4**	D65 <±10K, D50<±5K; illuminance <±0.5%
*Long-term stability^5**	D65 <±25K, D50<±15K; illuminance <±1.5%
Software instrument compatibility	X-Rite i1 Pro 2, Konica Minolta CL500A, THOUSLITE FS spectrometer
Electrical	100-240V 50/60Hz, 150W Maximum
Operating ambient temperature	0-30 °C
Connection	USB cable
External dimensions(W/D/H)	682×343×440 mm
Weight	24 kg
Scope of delivery	LEDTrans lighting box, diffuser, power cord, USB cable, software LEDNavigator-LT with dongle, THOUSLITE FS spectrometer, Neutral density filter (optional), remote controller(optional), SDK^*6 available on request
Software	Modules in software LEDNavigator-LT: 1. Blackbody locus simulator 2. SPD Match 3. Single channel control 4. Dynamic lighting 5. Fast & accurate feedback^*7

*1：The number of LED kinds
*2：Actually 1000 steps can be used because some steps for low luminance calibration.
*3：Light quality is measured with 80% power
*4：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.
*5：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.
*6：Users can utilize the SDK to realized the functions of Dynamic lighting, Single channel control.
*7：Users need to have the compatible instrument for measurements

Online Video

1 LEDTrans Hardware Introduction

1.1 LEDTrans Hardware Introduction

2 Software Introduction

3 Software Upgrade

3.1 Software Upgrade

4 SDK Introduction

4.1 SDK Introduction

Applications

2022-05-23 Imaging & Sensor Evaluation Lighting
Scope: 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

Downloads

FAQs

What is LEDTrans and what are its main uses?
LEDTrans is an innovative transparent uniform lighting box launched by THOUSLITE, based on multi-channel LED technology.It is specially developed for test chart illumination and camera calibration.
Core uses:
• Test chart illumination
• Camera and sensor calibration
• Standardized lighting environments for optical imaging laboratories
What are the spectral range and color temperature range of LEDTrans?
Technical specifications of LEDTrans:
• LED spectral channels: 14 channels
• Spectral range: 380–730nm
• Drive method: Amplitude modulation drive
• Channel resolution: 10 bits per channel, 1024 levels
• Warm-up time: None
• LED lifetime: >10,000 hours
• Color temperature range: 2000K–20000K
• CIE Ra range: 80–100
What are the illuminance output and uniformity of LEDTrans?
LEDTrans provides:
• Maximum illuminance: Up to 18,000 lux (exit surface)
• Dimmable illuminance: Minimum 1% of maximum illuminance
• Exit surface uniformity: >96% (exit surface 280×210mm)
• Flicker-free: Based on AM drive method
What light sources can LEDTrans simulate?
LEDTrans can achieve:
• High-quality daylight simulation: D75, D65, D50, CIE Ra > 98, MI Grade A
• Blackbody locus simulation: Accurately reproduce sources from 2000K to 20000K
• A light source: CIE Ra > 97
• Any Spectral Power Distribution (SPD): Reproduce any measured or imported SPD
Does LEDTrans support dynamic lighting and single-channel control?
Yes:
• Single-channel control: Arbitrarily adjust the intensity of each channel
• Dynamic lighting: Programmable light sequence and interval
• Fast light source switching: No warm-up time, instantly stable
How does LEDTrans ensure long-term stability?
LEDTrans ensures long-term stability through:
• Fast and accurate feedback system: Automatic feedback via external spectrometer
• Optimized heat management system
• Short-term repeatability: D65 < ±10K, Illuminance < ±0.5%
• Long-term repeatability: D65 < ±25K, Illuminance < ±1.5%
Does LEDTrans provide an SDK development kit?
Yes. LEDTrans provides SDK in different programming languages, allowing customers to further integrate it into their own control software.
What are the main application areas of LEDTrans?
LEDTrans is mainly used in:
• Optical imaging laboratories: Test chart illumination and camera calibration
• Camera and sensor performance testing: White balance testing, color reproduction testing, resolution testing, etc.
• Image calibration: Standardized lighting environments for imaging systems
• Industrial inspection: Visual inspection lighting in smart manufacturing