Readout for a ring laser gyro using a platinum beam splitter

Details Readout for a ring laser gyro using a platinum beam splitter Readout for a ring laser gyro using a platinum beam splitter

1986-05-12

1988-11-08

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

350171, 372 94, G01C 1964, G02B 2714

Patent

active

047831707

ABSTRACT:
A symmetrical prismatic readout apparatus includes a pair of substantially identical prism elements positioned in back-to-back relationship with respect to each other to provide a symmetrical structure. The prism elements have bonding surfaces in which one includes a thin film platinum coating. The bonding surfaces are bonded together through optical bonding, without the use of adhesives. The platinum film forms a beam splitter. The two prism elements are similarly bonded to a substrate element, again by optical bonding, without the use of adhesives. Suitable beam splitter arrangements are provided to effect the desired readouts.

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