Enhance the performance of your existing camera with illumination using a short-pulse laser to freeze the movement of fast-moving subjects.
Oxford Lasers high speed imaging systems combine high speed cameras with pulsed lasers to deliver one of the most powerful imaging systems in the R&D world. Short-pulse lasers improve camera performance by illuminating subjects with ultra-short pulses of light. Motion blur is eliminated even for very fast subject movements. The laser light can be distributed in the form of a sheet / sheet (in English known as a lightsheet ) in order to take 2D "slice" images through a turbulent 3D flow for visualization of the flow, measurement of the shape of a spray , or fluid velocity measurement.
Capture the image at the right time
Why use a pulsed laser for high speed photography
These two image sequences were taken using the same spray and the same high speed camera.
In the video on the left, a conventional continuous light source was used. Even if the exposure time was only 1/4500 seconds, there is motion blur (impossible to see the droplets individually).
The video to the right was taken using laser strobe illumination from an Oxford Lasers copper vapor laser (CVL). The short laser pulse reduces the effective exposure time to 1 / 40,000,000 second (25ns). With this equipment, even the smallest droplet of the spray can be observed distinctly - frozen in flight. The same technique can also freeze bullets in flight.
High Speed Imaging Applications
Thousands of researchers around the world have already used Oxford Lasers high-speed imaging systems to better understand the subjects of their studies. Our imaging systems have been used for various applications such as:
- automotive development: imaging on fuel injectors , engine air flows or airbag deployment.
- slow motion photography of the natural world to understand river erosion and reveal the mysteries of the flight of fruit flies
- studies of sprays and aerosols (ranging from metered-dose inhalers to hair spray )
- ballistics: freezing the movement of projectiles in flight
- high-speed strioscopy
- extensions to PIV , particle measurement and observation through flames, welds and explosions
- studies on the wave of propagation of a shock and its interactions
Tablecloth of light
The laser light can be transformed into a thin sheet of light and then be used to take 2D cross-sectional images through a 3D stream. The example on the right shows the cloud of a spray from a pulmonary drug delivery device.
Oxford Lasers has developed a unique optical fiber - the Sheet of Light , which can be used with copper vapor lasers and diode pumped solid state lasers (subject to the correct fiber). The light sheet gives a beam quality six times better than with any other fiber source.
The FireFly laser produces a thin, straight focusable sheet outside of the box. It is a high-speed imaging tool that is easy to set up and very powerful.
