Imaging with combined alignment fixturing, illumination and imag

Details Imaging with combined alignment fixturing, illumination and imag Imaging with combined alignment fixturing, illumination and imag

1988-12-06

1990-06-05

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350 9626, 250397, 356 2, 356237, 358139, G02B 2700, G02B 2326

Patent

active

049308726

ABSTRACT:
A hand-held device enables repeatable computerized imaging and analysis of a surface feature by combining the functions of alignment, illumination and imaging in a unitary device. The probe consists of a physical standoff having one end contacting the surface surrounding the area to be imaged. The imaging device, in the form of a lens and a charge coupled device (CCD), is mounted on the standoff at a distance from the surface area fixed by the standoff. The imaging device has its focal plane at or near the surface area to be imaged as controlled by the physical dimensions of the physical standoff. The imaging device is constructed having a depth of focus corresponding to the depth of the feature of interest on the surface area to be imaged. The illumination, in the form of a ring light disposed about the imaging device, focuses light at the focal plane of the imaging device. The device may include provision for multiple spectral imaging via multiple light sources or filtering and may also include the capability of multiple powers in the optical imaging.

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