Multi-axis optical projector

Details Multi-axis optical projector Multi-axis optical projector

1992-06-11

1994-01-11

Evans, F. L.

Optics: measuring and testing

By polarized light examination

With light attenuation

356388, 356390, G01B 1124

Patent

active

052786323

ABSTRACT:
A multi-axis optical projector comprises an optical yoke having two spaced-apart primary objective lenses and optical paths for transmitting either backlight or front light from light sources to a target object disposed between the primary objective lenses and from the target object to a secondary objective lens focussing on an eyepiece which may be a video camera. The projector is used, for example in a tool presetting or tool measuring system, for viewing of a specimen, such as a cutting tool, to measure tool profile and to identify tool surface defects such as cracks, chips, wear patterns and coating abnormalities.

REFERENCES:
patent: 2574119 (1951-11-01), Mottu
patent: 5061074 (1991-10-01), Ohikata et al.

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