Off-axial reflection holographic visual display elements which records in dichro-mated gelatin (DCG) deposited on planar substrate of glass has been developed for pilot head-up display (HUD). Important image characteristics such as diffraction efficiency, aberrations, dispersion, distortion and optical transfer function (OTF) etc for the off-axial reflection holographic lens are analysed. Preparation and processing of DCG film and several important techniques for obtaining high quality holographic lens are recommended.