An optic for the imaging optics on the distal end of a flexible fiberoptic endoscope
or rigid borescope inspection tool. The image coverage is over a narrow (<20 degrees)
field of view with very low optical distortion (<5% pin cushion or barrel distortion),
compared to the typical <20% distortion. The optic will permit non-contact surface
roughness measurements using optical techniques. This optic will permit simultaneous
collection of selected image plane data, which data can then be subsequently optically
processed. The image analysis will yield non-contact surface topology data for
inspection where access to the surface does not permit a mechanical styles profilometer
verification of surface topology. The optic allows a very broad spectral band or
range of optical inspection. It is capable of spectroscopic imaging and fluorescence
induced imaging when a scanning illumination source is used. The total viewing
angle for this optic is 10 degrees for the full field of view of 10 degrees, compared
to 40-70 degrees full angle field of view of the conventional gradient index or
GRIN's lens systems.