Viewing and measuring apparatus

Details Viewing and measuring apparatus Viewing and measuring apparatus

1982-06-03

1984-07-10

Sikes, William L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356363, G01B 902

Patent

active

044590261

ABSTRACT:
An apparatus for viewing and measuring using a partially reflective grating superimposed with the object. The invention provides efficient separation of viewing and measurement spectra from a common axis for a clear view of the object in conjunction with an accurate interferometric measuring system.

REFERENCES:
patent: 3614212 (1971-10-01), Hock
patent: 3729830 (1973-05-01), Blachat et al.
patent: 3756723 (1973-09-01), Hock
patent: 3891321 (1975-06-01), Hock
patent: 3996463 (1976-12-01), Jablonowski

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