Abstract: A method of compensating for distortion errors within a head-up display by mapping default pixel locations within a control environment, storing the default pixel locations to a storing means, recalling the stored default pixel locations while the head-up display is operational, and adjusting the head-up display unit to achieve the default pixel locations.

Abstract: A method of compensating for distortion errors within a head-up display by mapping default pixel locations within a control environment, storing the default pixel locations to a storing means, recalling the stored default pixel locations while the head-up display is operational, and adjusting the head-up display unit to achieve the default pixel locations.

Abstract: The present invention compensates and corrects temperature and distortion errors within a head-up display system using symbol generation and deflection circuitry. The present invention first measures the gain and offset of the symbol generation and deflection circuitry in a controlled environment to create known controlled settings. The circuitry is then installed in an operational head-up display unit where it subsequently dynamically and continuously measures its gain and offset values and consequently adjusts the gain and offset using an adjusting means in order to approximately match the originally derived control settings.

Abstract: A method of compensating for and correcting temperature induced focus and distortional errors within a head-up display unit is described. The head-up display is comprised of a cathode ray tube and a plurality of lenses constructed of a plastic material defining a lens train and a mounting device constructed of a metal material. The compensation for the temperature can be accomplished by measuring the difference in thermal expansion between the plastic material and the metal material and conveying the measured difference to an alignment device for an appropriate adjustment.