- a boxlike object having a uniformly lighted surface, as of ground glass, against which films or transparencies can be held for examination.
Origin of light box
First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for light box
Having the light-box, the burners must be placed in it properly.
The form of light-box presupposes the choice of illuminant, and in this there is a wide range.
If no light-box is available, a clear window may be utilized in "blocking" the negatives.
A light-box is basically a frosted pane of glass with a light beneath it to produce soft, even, non-glaring illumination.
If wood is used, the light-box is apt to split under the influence of the heat within.Practical Cinematography and Its Applications
Frederick Arthur Ambrose Talbot
- a light source contained in a box and covered with a diffuser, used for viewing photographic transparencies, negatives, etc