A device similar to the photography lightbox, used for viewing x-rays.
In the science field, lightboxes are often used for looking at bacterial growth and allow better visualization for PCR plates.
A lighted display panel used for advertising purposes, especially for retailers. The panel can be illuminated by fluorescent light bulbs or LED lighting strips. The efficiency of light boxes improved dramatically after the introduction of LED technology. These lighting sources can be placed at the back or side of the panel. The user inserts a graphic, which can be changed easily. Some light boxes are designed especially for outdoor purposes so they are more weatherproof and waterproof and usually have a lock on their front end to secure the images inside. One can see such light boxes easily in any retail shop or in a movie theatre.
Another use of the term "lightbox" is for the fabric reflectors that attach to studio lighting via a connector to create soft lighting by diffusing the strobe flash. They generally come in various rectangle shapes, although recently they are being manufactured in an octagon shape. Interior reflectors can be white, silver or gold to alter the temperature of light. Baffling inserts are also available.
Lightbox designed to produce images with diffuse lighting from all angles
A variation of this is a box, with one open end, made of diffusing material, to allow the photographing of a sample object with no shadows.
A folder used on stock photography to allow a user to organize digital photos. Photos can be assigned to a viewable lightbox folder by subject, for later convenience, or used to compile unrelated photos for a specific project layout. Lightboxes also allow graphic designers to show clients options for a project in one simple uncluttered folder.
The card-reader near the door in a hotel room, used as the main electrics switch