Illumination System
CAVILUX HF
Typical application examples include welding, flow and spray studies, material testing, ballistics and explosions. CAVILUX HF is compatible with schlieren and shadowgraphy optical solutions.
The high maximum duty cycle (2 %) of CAVILUX HF enables it to operate at frame rates up to several hundreds of thousands of frames per second.
Benefits
High power and brightness (up to 500 W coupled to a 1.5 mm diameter fiber)
Ability to generate pulses at high speed (e.g. 20.000 fps) or ultra-high-speed (e.g. 1 million fps)
Pulse length from 50 ns to 200 µs possible
Monochromatic and low-coherence light
High flexibility through fiber optics and changeable illumination optics
"It's the little details that are vital. Little things make big things happen."
Overview
Powerful high-frequency pulsed diode laser light source for visualization of demanding applications
For high-temperature processes – see through heat and blinding brightness
Accurate imaging of processes involving even extremely
small and/or fast objects
Ability to generate pulses at high speed
Versatility by varying pulse duration and repetition rate
Shortness of pulses eliminates motion blur – better and more accurate images for analyzing
Possibility to generate up to five pulses per one camera exposure
Monochromatic and low-coherence light ensures the best possible image quality – without chromatic aberrations or speckle
High flexibility through changeable illumination optics that enable setups even in limited space and with long working distances
Specification
CAVILUX HF System
Consists of a control unit, laser unit(s), control software and illumination optics
One control unit can drive 1…4 laser units (including CAVILUX Smart) and
synchronize 1…4 cameras
Can receive or provide 5 V TTL signal for camera synchronization
Laser unit(s)
Wavelength options 640 nm (visible) and 810 nm (invisible)
Output power options for
640 nm: 280 W
810 nm: 500 W
Laser class 4
Green laser pointer for easier alignment
Variability through generation of pulses and pulse patterns
Pulse duration 50 ns … 10 μs (also 200 μs for 810 nm on request)
Duty cycle 2 % for max 10 s (also ultra-high-speed mode available)
Continuous mode with 0,3 ‰ duty cycle
Generation of single pulses or bursts of pulses (max 5 pulses / bursts) at high
repetition rate
Practical repetition rates up to a few hundred kilohertz
Stand-alone operation
Versatility through changeable fiber optic illumination
Adjustable illumination with lens (standard solution)
Direct illumination from fiber optics
Uniform back-illumination (e.g. shadow imaging)
Line profile illumination (e.g. flow, welding)
Light sheet illumination
Pulse duration / frequency
Pulse duration Normal mode (1) High-speed mode (2)
* 50 ns 6.000 Hz 400.000 Hz
100 ns 3.000 Hz 200.000 Hz
500 ns 600 Hz 40.000 Hz
1 μs 300 Hz 20.000 Hz
10 μs 30 Hz 2.000 Hz
200 μs 1,5 Hz 100 Hz