00742nam a2200205Ia 4500001000700000003000500007005001700012008004100029010001500070035002000085040002400105050003600129082001000165110005600175245015100231260004700382300005500429490002100484650003100505115504BIBL20160527184006.0760719s1954    dcua     b   f000 0 eng    a 54061815   a(OCoLC)02319516  aDLCcCSUdm.c.dOCL0 aQC100b.U555 no.526aQC381b.U5  a535.31 aUnited StatesbNational Bureau of Standards.2Local10aOptical image evaluationbproceedings of NBS semicentennial symposium on optical image evaluation held at the NBS on October 18, 19, and 20, 1951.  aWashingtonbU. S. Govt. Print. Off.c1954.  ax, 289 p.billus., charts, tables, diagrs.c24 cm.0 aIts Circular 526 0aOptics, Geometrical2Local