Interferometer having combined beam splitter compensator plate

Details Interferometer having combined beam splitter compensator plate Interferometer having combined beam splitter compensator plate

1997-03-28

1998-09-15

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

359637, G01B 702

Patent

active

058087397

ABSTRACT:
A Michelson-type interferometer which includes apparatus for producing a suitable collimated interferometer input beam; a beam splitter and recombiner for first splitting the input beam into two beams which have components arranged to travel along parallel forward paths and then to recombine them into a single output beam as they are returned along reverse paths to the beam splitter and recombiner; an OPD scanner for scanning the optical path difference between the two split beams travelling along said paths while substantially maintaining the parallelism between the components, and a beam reverser common to the parallel beam components for reversing their direction of travel along the reverse paths and returning them for recombination into the single output beam at the beam splitter and recombiner.

REFERENCES:
patent: 5172186 (1992-12-01), Hosoe
Journal of Scientific Instruments, vol. 41, 1964, pp. 225-226, R.S.Sternberg "A New Type of Michelson Interference Spectrometer", p. 225, left column, paragraph 3, right column, line 23, figure 1.
Applied Optics, vol. 20, No. 2, 15 Jan. 81 New York, US, pp. 335-342, D.J. Campbell et al. "Rapid Scan Modulator for Interferometric Applications".
Abstract, p. 337, right column, line 43-line 55, p. 340, right column, paragraph 2-paragraph 3; figures 5, 10.

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