Actually the word lightbox is used in three different fields with three different connotations. If it is used in the field of photography, then it is a tool used by the photographers to control the lighting in their shoots. If it is being used in digital printing then it is used by the graphic artist to compile their digital images in one folder on their computer. If it is used in the medical field then it is for giving light therapy for diseases like skin disorders or even in some mental disorders. You will be amazed to know that one word has so many different uses in so many fields which are totally different from each other.
The tool, which is called light box which is used in both the field of professional photography as well as medical therapy, is just a device to control the light in a specific environment. If it is used as terminology as in a process used in digital printing then in that case it is mostly used by the graphic designers. In the photography there are two more concepts which are also called as the light box. One tool is where the light box is attached to adjustable legs for easy rotation, and the other is called as fabric reflectors which are used to give different light effects. So we can see that in one field of photography itself there are many uses of the light box. We can very well say that the light box is a tool which has multiple uses in multiple fields which as in itself an achievement of the idea behind it.