DeflectoZ

3D Camera for Glass & Metallic Surfaces

Discover DeflectoZ

DeflectoZ ensures reliable 3D inspection of Glass and Metallic Surfaces:

Focus resistant multi-phase pattern projection
Multi-view imaging for full coverage
Excellent signal to noise ratio due to HDR
Deflectometry engine designed for glass and metal inspection
Optimized software SDK for inline inspection

DeflectoZ Multiview Deflectometry

DeflectoZ provides 100% 3D inspection for glass & metal:

Multiple cameras for full coverage and reliable data by
Rigorous calibration of cameras and deflectometry setup
Multi-phase algorithm for focus resistance and 3D range
Optimized for SIMD and GPU for real-time performance
Customized solution to meet needs of various market segments

Processing Steps for Deflectometry

Camera calibration plus lens distortion
Multi-view camera geometry calibration
LCD geometry calibration
Phase shift image sequence capture
Deflectometry calculation to output point cl

DeflectoZ Process Flow

Following diagram shows DeflectoZ processing flow from 2D to 3D:

DeflectoZ Applications

Following diagram shows DeflectoZ processing flow from 2D to 3D:

Mobile Screen 3D Inspection

Glass screen covers are a critical component of modern smart phones. Introduction of beveled edges and rounded corners make their quality control even more important. The covers are made from toughened glass which is transparent. The inspection needs high quality 3D data at line speeds. Laser scanning is not an option as it does not work with transparent surfaces. Traditional 3D imaging technologies like CMMs can measure glass but are very expensive and too slow to meet production line speeds and high volumes.

As glass reflects light at a certain angle, Phase Shift Deflectometry (PSD) traditionally used for mirror can be used for measuring 3D surface normals and position for glass. DeflectoZ uses cutting edge deflectometry to inspect mobile screen glass. Multiple cameras allow DeflectoZ to cover sharp edges and curves. Multiview image analysis also removes the ambiguity between surface normal and position inherent to deflectometry.