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专利名称：Optical collimating alignment units发明人：ROSSITER; MICHAEL WESTON申请号：US45437874申请日：19740325公开号：US3918813A公开日：19751111
摘要：An optical viewing alignment unit which includes a collimator on a main bodyoptically directed to a beam splitting cube located in an optical viewing system, the faceof the cube opposite the collimator being reflective, the collimator including anilluminated graticule whereby the collimator produces a datum image of the graticuledirected through the same optical viewing system as the image.
申请人：THE COMMONWEALTH OF AUSTRALIA
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