Category Archives: B

B, Glossary

Lighting system

Posted on by Karin

Professional scanners should have a lighting system that provides uniform and gentle illumination and can adapt variably to a wide variety of originals, depending on the specific requirements. In addition, the light sources should be glare-free as well as UV/IR-free, so that there is no radiation exposure for the user in accordance with EN60825-1.

LED lighting unit: Less is more!

All our book2net scanners are therefore equipped with a LED lighting system as standard, which provides a stable color temperature during the scanning process and thus guarantees true color reproduction. When using conventional LED light bands, different luminous intensities also occur in due to the different light paths on the surface, depending on the position of the light source. Therefore, we use only Fresnel lenses, which compensate for this process and provide uniform illumination of the entire scan area.

Thanks to the CMOS sensor technology we use and innovative process optimization, our scanners operate with an extremely reduced illumination time of 0.6 sec. This guarantees particularly gentle recording of originals with the lowest light requirement to avoid irretrievable damage to paper, ink and colors that can be caused by excessive light intensity.

In addition, we have optimized the design of our devices to ensure the best possible illumination and to assure constant scan quality:

The elegant black design of our scanners prevents annoying back reflections.

The rear-mounted lighting system and optimized housing curvature provide the optimum angle of light incidence to avoid uncontrolled reflections into the optics caused by the curvature of the side.

All of our lighting units are customized for specific applications as fixed components of our high-quality systems.

 

Additional lighting: optimal illumination for large formats and precious old books

Large formats and particularly valuable old books with waved surfaces, special inks, gold grounds and gildings require more than standard illumination.

To meet these special requirements, we have developed auxiliary lighting for our Ultra, Flash, Mosquito, Hornet and Cobra production scanners that can be integrated, mounted or controlled externally as required. The additional lighting can be easily synchronized with the integrated scanner lighting via a light control module. This ensures optimum shadow- and reflection-free illumination.

 

Sided light: individual illumination for special requirementsn

Some of our devices such as our reprographic systems and book2net Archive Pro scanners also feature individually controllable back and side lighting units to enable application-specific lighting scenarios.

Lighting scenarios with book2net reprographic system to highlight different features on a coin.

Advantages of the book2net lighting system:

Modern, LED lighting concept (UV/IR and ozone free, according to EN60825-1)

Glare- and flicker-free light (no flash effects)

Low energy consumption < 100 W

Stable color temperature of 5500 Kelvin

Lowest light intensity; controllable from 1000 to 3500 lux

LED lighting units individually adjustable and controllable according to special requirements

Unique Fresnel lens concept for uniform illumination of originals

Continuous regulation of the light emission angle

Additional illumination (optional)

Extremely long service life (10,000 working hours)

B, Glossary, M

Mechanical book cradle 180°

Posted on by multiadmin

In a mechanical book cradle, the necessary balancing movement takes place via a mechanical lever and spring-based design. Based on the principle of a balance, such book cradles perform the lateral balancing in a self-adjusting manner. Depending on their basic mechanical design, they are usually extremely robust and durable.

Book cradles based on this concept are usually used in scanners up to A2+ format, which are often used as a replacement for copying systems in administration, in the open access area of libraries or in archive digitization.

However, since the compensating movement takes place permanently with this concept, such book cradles in professional systems also have a so-called book cradle lock. This works like a brake that prevents the book cradle from moving during the scan and thus prevents blurring. In addition, there is often also the option of locking the book cradle as a whole by hand or foot switch and using it only as a flat support table.

Such a book cradle also offers the possibility of so-called book spine exemption. This is a mechanism that opens a gap several centimeters wide between the book plates, into which the spine can be gently inserted.

Another option that such book cradles very often have are scan triggers on the document table. These offer an enormous advantage, especially when digitizing without a pressure plate. The user is thus able to trigger the scan comfortably by hand, even if he needs one hand to hold or press down the template. In professional systems, the scan triggers are integrated into the support plates of the book cradle in such a way that they are easy to operate regardless of the size, thickness or position of the originals and without damaging them.

Glass plates or Makrolon pressure plates are further optional features of such book cradles that can be used if the pages of the template are to be pressed down gently and carefully.

Advantages:

  • Robust and durable
  • Easy to handle
  • A wide range of features for professional systems, such as automatic locking during scanning
  • Locking of the book cradle by switch to the fixed support table
  • Optional book spine release
  • Scan trigger on the support plates of the book cradle
  • Pressure aid made of glass or Makrolon©

Disadvantages:

  • With most suppliers, the book thicknesses which can be processed are designed for height adjustment up to a maximum of 10 cm.
  • The maximum permissible weight of books for which the compensating movement still functions according to the principle of a scale is limited to a few kilograms