Field of view expander and its application for multi-gige camera measurement system

Abstract

The invention discloses a viewing field expander for a multi-GigE (gigabit Ethernet) camera measurement system and application thereof. The viewing field expander is characterized in that a camera bracket is arranged in an inverted U shape between a pair of linear guide rails which is arranged in parallel along the longitudinal direction; a GigE camera is fixedly arranged on the inverted U-shaped camera bracket; the inverted U-shaped camera bracket can drive the GigE camera to linearly move on the linear guide rails along the longitudinal direction; a cross bar bracket is horizontally arranged between the pair of linear guide rails; a reflector assembly is arranged on the cross bar bracket; the GigE camera utilizes the reflector assembly to acquire a measured viewing field beside the GigE camera; and the cross bar bracket can drive the reflector assembly to linearly move on the pair of linear guide rails along the longitudinal direction. According to the invention, by the arrangement of the reflector assembly, the viewing field beside a lens of the GigE camera can be transmitted to the lens of the GigE camera and the movement of the GigE camera in one direction is reduced, and thus, measurement accuracy is improved and measurement time is shortened.

Description

technical field [0001] The invention relates to a multi-GigE camera lens field of view expander of a multi-GigE camera measurement system and an application thereof. Background technique [0002] The multi-GigE camera large-plane measurement system in the prior art is a linear array of GigE cameras scanned along the X direction, and then translated along the Y direction by a distance slightly smaller than the width of the field of view of the GigE camera, and then the next scan is performed, at least three scans To complete the scan of a panel. This kind of camera arrangement structure is relatively simple, but a certain error will be introduced after translation in the Y direction, and it takes a long time to scan repeatedly, which will introduce repetition errors. Therefore, there are many and relatively large sources of measurement errors in the entire measurement system, and the measurement time is relatively long. Contents of the invention [0003] The present inven...

AI Technical Summary

Problems solved by technology

This camera arrangement structure is relatively simple, but it will introduce a certain error after it is translated in the Y direction, and it takes a long time to scan repeatedly, which will introduce repetitive errors

Therefore, there are many and relatively large sources of measurement errors in the entire measurement system, and the measurement time is relatively long

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