Solutions K Technologien K Line scan camera

Line scan camera

Measures moving objects very precisely

The basic principle of a line scan camera is its line-by-line image structure. During an inspection, a line sensor is moved in a linear motion over an object to be inspected. The test object can also be moved under the sensor, also in a linear motion. A high degree of precision is required in order to compose high-resolution images from individual lines. It should be noted that line scan cameras generally require stronger lighting due to the shorter exposure time.

The advantages of line scan cameras in industry

To ensure that the vertical and horizontal image scales are the same, the scanning rate of the lines is adapted from 100 Hz to over 100 kHz to the speed of the passing objects. Because high object speeds can be used, very high throughput rates, which are common in everyday industrial applications, are also possible. For example, semiconductors, textile webs, paper and other objects with moving surfaces can be inspected quickly and on the fly.

Line scan cameras can also perform a so-called 360° inspection – for example, labels on round objects that are rotating can be reliably displayed.

Possible areas of application

Due to the very high image quality, line scan cameras are ideal for quality assurance applications that require a very high resolution at high speed. Food or the print quality of packaging can be checked directly on the system or conveyor belt. Barcodes, QR codes or lines of text for sorting packages can also be read quickly with line scan cameras.

Precise measurements of moving objects, even at high throughput rates in tough industrial applications.


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