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Using a small slide lightbox for creating a transmitted illumination source in macroscopy

It is not always necessary to purchase a complex transmitted li2ght unit that is equipped with a condenser module. For some applications, such as macroscopic magnifications of up to 100x, other, lower cost alternatives are available.

 

Diadurchlicht Mikroskop Beleuchtung

We used a slide lightbox to create a transmitted illumination source for our macroscopy work and were very pleased with the results. Small slide lightboxes about 18 mm high and around 160 x 160 mm wide fit superbly under macro stands. When no longer needed for work, they can easily be removed and reinstalled if needed again. In most cases, these lightboxes are equipped with LED lighting or mini fluorescent tubes

The costs for these units, which run between € 70.00 and € 200.00 depending on size and quality, are indeed very reasonable. The lightbox provides uniform illumination over a large surface area, which is especially beneficial when working with larger specimens. When purchasing such lightboxes, it is essential to ensure that the light covers the entire surface area uniformly. 

In some microscopy applications, slide lightboxes may represent a sensible alternative to condenser illumination. However, the disadvantage of this inexpensive alternative is that the light intensity is considerably weaker. Fortunately, the high luminous intensity of modern DSLR cameras makes it possible to conduct such work routinely.

Where greater magnifications (> 100x) are involved, and when the tasks are increasingly demanding, we recommend a more expensive condenser solution. The comparative performance of this alternative is much better, and it also makes the specimen visible in far greater detail.

Nevertheless, the use of a slide lightbox to achieve a transmitted light solution is an excellent complement to our LM macroscopes and LM photo microscopes! 

27.10.2015

 

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