Edmund Optics
Barrington, NJ 08007
Aug 19, 2005 Made of fused silica and reflective chrome, Fluorescent USAF 1951 Resolution Targets calibrate optics of systems that use UV illumination. Positive target has chrome pattern over clear background, with fluorescent material on front surface, while negative target has clear pattern with chrome background and fluorescent material on back surface. Peak absorption and emission wavelengths are 365 nm and 550 nm, respectively.

Edmund Optics
Barrington, NJ 08007
Aug 21, 2003 High Precision Ronchi Rulings are constructed from vacuum deposited chrome on a soda lime glass substrate. Substrate is 1.5 mm thick, exhibits surface flatness of 1 wave per inch, and has surface quality 60-40. Toleranced targets, with line to line parallelism of less than 2 arc seconds, are available in sizes from 1-4 in.² with resolutions from 50-5,000 linepairs per inch. Applications include microscopy, schlieren metrology and moire topography.

Edmund Optics
Barrington, NJ 08007
Dec 03, 2002 Suited for microscopes and machine vision systems, Multi-Function Calibration Targets measure different imaging system parameters without need for separate calibration targets. It is available in Low Magnification for 4X-20X objectives and High Magnification for 20X-100X objectives. Calibration tool measures resolution, distortion, and depth of field (DOF). Ronchi rulings, concentric circles, square grids, and microscale are provided.