Transmissive Light Source

High Speed Flicker and Wide Dynamic Range Light Source (Event Camera Testing)

Brand：ColorSpace
Model：CS-LE-ECT01
Product description: ColorSpace provides high quality event camera test and calibration light sources to ensure the accuracy and reliability of event cameras. Our calibration light sources provide stable and controlled li
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High Speed Flickering Light Source | Event Camera Calibration Equipment

The CS-LE-ECT01 High-Speed Flicker and Wide Dynamic Range Light Source – a cutting-edge solution designed for precision testing and calibration of high-speed and high-dynamic imaging systems, including event cameras and pulse cameras. This advanced light source can generate microsecond-level high-speed light intensity variation waveforms, with instantaneous light intensity changes adjustable from minimal brightness fluctuations to upto 100,000 times dynamic range. Boasting an impressive uniformity greater than 90% across the luminous surface, the CS-LE-ECT01 ensures unparalleled accuracy and reliability, making it the ideal choice for your most demanding imaging applications.

Comparison in low light and high speed scenes

Traditional cameras	Event cameras

To test and calibrate the performance parameters of an event camera, the following steps are generally required:

· Time resolution test: Use an external pin signal or specific experimental equipment to trigger high-speed events, and compare the output of the event camera with the reference signal to measure time error and time resolution.
· Spatial resolution test: Use specific customized light sources and calibration boards to measure the spatial resolution and distortion correction capability of the event camera, which is an important factor in ensuring the accuracy of the event camera.
· Sensitivity test: Use customized light sources or simulate real-world scene images to evaluate the sensitivity of the event camera, such as dynamic range and noise.
· Event rate test: Test the maximum frequency that the event camera can respond to, which is a parameter that must be known when determining the actual application scenario.
· Energy consumption test: Measure parameters such as the power consumption and current consumption of the event camera to evaluate its energy performance in actual working environments.

By performing these steps, the performance of the event camera can be fully evaluated and its reliability and accuracy in a variety of real-world application scenarios can be ensured.

正印科技事件相机及校准光源

Schematic diagram (shape varies according to function and power)

High speed switching square wave

To ensure reproducible and accurate test results for each metric, we need to use specialised test equipment or standard test methods. To meet the testing and calibration needs of event cameras, Positron has developed the innovative CS-DVS series of event camera-specific test light sources. These test light sources have a number of excellent performance indicators to meet various requirements.

The CS-DVS series test light sources have the following characteristics:

· Fast response time: response time is less than 10μs, enabling accurate capture of high-speed events.
· Large dynamic range: able to cover a range of light intensities from 0.1lux to 80,000lux or even higher, suitable for testing under different brightness conditions.
· Multiple waveform combinations: supports a wide range of waveforms such as square and rectangular waves to meet different testing requirements.
· Good light source uniformity: the uniformity of the light source is greater than 95%, ensuring the accuracy and reliability of the test results.
· Multiple colour temperatures to choose from: A wide range of colour temperatures are available to suit different test scenarios.
· Support trigger function: Built-in or external trigger function can be selected for flexible control of test timing.

CS-LE-ECT01 High Speed Flicker and Wide Dynamic Range Light Source Parameters

Parameters	CS-LE-ECT01 High Speed Flicker and Wide Dynamic Range Light Source
CCT	5000K/2800K±200K (customizable)
Illuminance Range	5Lux~30000Lux
Brightness Uniformity	≥90
Light Intensity Switching Response Time	<10μs~10s
Effective Light-Emitting Area	220mm × 280mm, customizable
Dimension	430mm × 370mm × 151mm (LWH) (customizable)
API Interface	Optional
Supporting Functions	· Set the brightness of different channels. · Set the time interval for switching. · External synchronous triggering. · Set trigger time. · Touch screen control. · Software control.
Power	300W
Supply Voltage	AC 100 ~ 120V / 200 ~ 240V; 50/60Hz
Work Environment	Temperature: 25℃ (±10℃) Humidity: 30%~50%
Accessory	Controller, power line, Light Control software V3.0【RS-485】
Main Applications	Event camera testing, wide dynamic range testing, time resolution testing, Flicker testing, etc.

Depending on the application requirements, we can also provide customised product solutions for our customers. If you are interested, please feel free to contact our labs in Beijing, Shenzhen and Jiaxing for demonstrations, communication or trial prototypes. Work with us to experience ColorSpace's solution technology and quality products and together we can push the boundaries of the event camera sector.

For more information, please contact：sales@colorspace.com.cn

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