Basler spL4096-70kc Camera

The Basler sprint family of line scan cameras includes members with 2k, 4k, and 8k resolution and different line rates. All sprint variants are based on a next generation dual line CMOS sensor designed exclusively for Basler.

The Basler sprint is aimed at applications where high sensitivity, excellent image quality, and the highest speed are required. This speed and image quality let sprint camera users increase efficiency and throughput in many vision applications.

• Next generation CMOS dual line scan technology

• Up to 140 kHz at 2k or 4k resolution,

• up to 70 kHz at 8k resolution

• Color line scan with 70 kHz at 4k resolution

• High sensitivity at high speed with very low noise

• Flexible color concepts and high color fidelity

AOI (area of interest) with linear speed increase

The AOI feature lets you focus precisely on the area of an object that is important to you. This means that the amount of data transmitted by the camera will be reduced and that the image processing application in your host PC will not be overloaded with unnecessary data. In addition, you may see a linear increase in the camera’s speed by reducing the AOI.

Time delayed line sum
This feature uses the dual line sensor to scan each object line twice in a time delayed fashion. The double information is combined in the sprint’s internal memory and this technique doubles the sprint’s sensitivity. It also significantly reduces noise and results in a 3 dB increase in the SNR.

Time delayed line averaging

With this feature, time delayed line summing is performed and then the doubled information is averaged. The advantages are an increase of 3 dB in the SNR and an increase of 3 dB in the dynamic range.

Binning
Both horizontal and vertical binning are available. Either two pixels or four pixels can be binned together

Shading correction (flat field correction)
DSNU (dark signal non-uniformity) and PRNU (photo response non-uniformity) can be performed to correct for the non-homogeneous behavior of lighting, optics, and the sensor that can be present in real world applications. Shading or vignetting caused by lenses can be compensated by the enhanced shading correction (ESC). The wide range of the ESC is very helpful for image processing, especially with larger sensors and lenses with shorter focal lengths

Color

A Bayer pattern filter is used to create the color version of the sprint. One line in the sensor reports red and green information and the second line reports green and blue information. Image data in a raw format is transferred to the frame grabber where color processing happens in a fast, reliable way similar to common color area scan cameras.

Several color creation schemes can be implemented. Depending on the application needs, the active color concept can focus on speed and reducing the amount of data, or it can focus on higher color fidelity. For higher color fidelity, each object line is scanned twice, thus two times color information is available for each image point.

This approach has a big advantage because standard lenses and frame grabbers can be used. Because there is no gap between the sensor’s two active lines, adapting the camera to your application/object is easy and no spatial correction is needed.

Typical Applications

Basler sprint cameras are perfect for use in applications such as:

• OCT (Optical Coherence Tomography)

• Print inspection

• Web inspection of paper, foil, wood veneers, etc.

• Document scanning and postal sorting

• Food inspection

• Surface inspection of printed circuit boards, flat panels and displays, semiconductors, etc.