Projector Applications Research Articles

Application of profile projectors to moiré analysis

Two profile projectors have been modified for moire applications by the addition of adjustable screens which contain magnified master grids. The instruments have been examined for any errors they may introduce into the measurements and the screen adjustments have been calibrated. Their use and application are described briefly.

Trend of Lamp Development and Operation in Motion Picture Projectors Employing 16 mm. Film

We have had to alter our conception of the application of the non-professional projectors employing 16 mm. film. It was formerly felt, that due to inherent limitations in illumination, these small units could only be recommended for use before a handful of people. However, due to their portability, comparatively low cost, and low film cost, they have become increasingly popular. While one of their major applications is in the home, they have become an important sales aid in the business field and find increasing use in the school classroom.