User-friendly commercial devices for recording of colour pictures have become available in the last years. Among recent technological advances in this field belong digital still camera and digital video camera, which can be employed for recording images and video sequences. This data can be used for scientific work or it can serve for documentation of experimental and other work and it provides teaching material. The data storage can be done using personal computers on hard discs, optical discs or compact discs with a large storage capacity. Searching and sorting of such data can be performed using computer databases which makes the process more efficient comparing to conventional photographs.

Digital still camera Mavica MVC-FD91 [1] can be used for recording still images and video sequences of a length of up to 1 minute (low resolution) or 15 sec. (high resolution). The format of the recorded image is 1024x768 pixels in full colour compressed in JPEG format. Video sequences can be recorded in either Presentation Mode (up to 15 sec., 320 x 240) or Video Mail Mode (up to 60 sec., 160 x 112). These are stored in MPEG-1 format. The data can be fast-viewed using personal computer software such as Microsoft Internet Explorer, for more advanced graphical processing Adobe Photoshop 5.0 [2] can be employed.

In our contribution, selected examples of pictures recorded for the multimedial lecturing in quantum electronics and optics are presented. In the pictures we can see e.g. laser beam mode structure, tissue ablation in ophtalmology, difraction of a He-Cd laser beam by optical diffractive structures, setup of a spectrofluorimeter and a view on details of a x-ray laser. The images were processed on a personal computer using Adobe Photoshop 5.0, which has been found to be a very powerful software for this purpose.

References

[2] http://www.adobe.com/products/photoshop/main.html

This research has been supported by CTU grant No.12704.

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