Line Scan Cameras
Line Scan Cameras
Line scan cameras, sometimes known as 1D cameras are widely used in web inspection application, such as printing, PCB, when application requires very high resolution, and demanding lighting geometry. We supply line scan cameras with the latest technologies that set new standards for image quality and speed.
A typical Line scan camera has only a single row of pixels used to capture data very quickly.
However , with the ever increasing demands of line scan cameras, different multiple line scan cameras emerges to address to need in higher sensitivities, or speed , or separation of spectral information ( Colour cameras), but the principle of how a line scan system work remains the same.
As the object moves past the camera, ( or cameras scan along an object) a complete image can be reconstructed in software line by line.
Line scan systems are best employed in high-speed processing or fast-moving conveyor line applications.
With a single row of pixels, line scan cameras can build continuous images not limited to a vertical resolution, thus the image size is only limited by one axis, and has to flexibility to configure for virtually unlimited vertical resolution( limit only by the PC resource) This allows for much higher possible resolutions compare to area scan cameras.
Unlike area scan cameras, a line scan system can start processing of images continuously while the cameras is still capturing on the same parts without missing any part, making it superior in continuous web inspection.
Movement synchronisation are critical for line scan system,
Individual line are expose independently and sequentially, leaving only little time for exposure, line scan system are always hungry for light intensity. However system lighting design is often much simpler compare to area scan.