• Various backlit viewing devices:
  • A container with several lightbulbs and a pane of frosted glass
    Frosted glass
    Frosted glass is produced by the sandblasting or acid etching of clear sheet glass. It has the effect of rendering the glass translucent by scattering of light during transmission, thus blurring images while still transmitting light.Applications:...
    
     on the top. It is used by photography professionals viewing translucent films, such as slides. This device was originally used to sort photographic plate
    Photographic plate
    Photographic plates preceded photographic film as a means of photography. A light-sensitive emulsion of silver salts was applied to a glass plate. This form of photographic material largely faded from the consumer market in the early years of the 20th century, as more convenient and less fragile...
    
    s with ease. It is also used by visual artists for photo-referencing
    Photo-referencing
    Photo-referencing in visual art is the practice of creating art based on a photograph. Art produced through this technique is said to be photo-referenced....
    
    . When laid flat, it may be called a light table
    Light table
    A light table is a viewing device that is used to review photographic film or artwork placed on top of it. It provides even illumination of the subject from below through a translucent cover and fluorescent lights that emit little heat. They can also be found mounted on the walls of hospitals and...
    
    . Generally, a lightbox uses light similar to daylight (5,000–6,000 kelvin
    Kelvin
    The kelvin is a unit of measurement for temperature. It is one of the seven base units in the International System of Units and is assigned the unit symbol K. The Kelvin scale is an absolute, thermodynamic temperature scale using as its null point absolute zero, the temperature at which all...
    
    s (K)), has uniform light strength on the glass pane, and has adequate light strength (in order to not strain the vision).
  • 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 source 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 weather and water proof and usually have a lock on their frontend 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.

• A simple, unobtrusive overlay for presenting images on a web page, created using JavaScript.

• A folder used on stock photography
  Stock photography
  Stock photography is the supply of photographs licensed for specific uses. It is used to fulfill the needs of creative assignments instead of hiring a photographer. Today, stock images can be presented in searchable online databases. They can be purchased and delivered online...
  
   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
• A light fitting designed to alleviate the symptoms of seasonal affective disorder
  Seasonal affective disorder
  Seasonal affective disorder , also known as winter depression, winter blues, summer depression, summer blues, or seasonal depression, is a mood disorder in which people who have normal mental health throughout most of the year experience depressive symptoms in the winter or summer, spring or autumn...
  
  .

External links

• DSA Phototech - light box manufacturer in USA http://lightboxes.com/blog/?p=119 - How do light boxes make a difference for a business
• wikihow.com - Tutorial showing how to create your own Lightbox
• Lightbox app for mobile and tablet devices - With an example of a Lightbox being used to view negatives.