Support at Questek...

JobsTo submit a new service request via the Customer Service Portal:

  • Technical questions
  • Technical Assistance requests
  • Field Service requests
  • Return Material Authorization (RMA) number requests for depot repair
  • Return Material Authorization (RMA) number requests for lamp refurbishments
  • Spare part pricing, availability and article numbers
  • Status tracking of pending service requests

 

Brightness Calculator for Projectors and Screens

Front projection principle

Enter values:

Contrast Ratio
Ambient light in lux
Surface area of screen
Gain factor of screen
% Reflectivity of screen

 

Projector light output in lumens:

 

Rear projection principle

Enter values:

Contrast Ratio

Ambient light in lux
Surface area of screen
Gain factor of screen
% Reflectivity of screen
Transmission factor of screen as %

 

Projector light output in lumens: